endobj Most of the remainder is made up of pyroxene minerals (usually augite). 12. pp. Dolerite is a dark igneous rock. 12, pp. Diabase is the preferred name in North America, while dolerite is the preferred name in the rest of English-speaking world, where sometimes the name diabase is applied to altered dolerites and basalts. startxref 0000009798 00000 n Limestone that contains some dolomite is known as dolomitic limestone. 0000031744 00000 n trailer 73–86. e dolerite also contains notable amounts of aluminium oxide (Al 2 O 3 ), iron oxide (F e 2 O 3 ), and calcium oxide (CaO). The data on the mineral composition and crystallization conditions of magnesian skarn and magnetite ore at contacts of dolerite with rock salt and dolomite in ore-bearing volcanic—tectonic structures of the Angara—Ilim type have been integrated and systematized. 0000028950 00000 n 0000001840 00000 n Mineral composition determinations indicate olivine, which ranges from Foo:-sz, is the only mineral that varies significantly. This is a preview of subscription content, log in to check access. volume 56, pages687–694(2020)Cite this article. 0000024780 00000 n Diabase or Dolerite Diabase or dolerite is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. 0000022699 00000 n Mineral Constituents The minerals present in the dolerite can be classified according to their order of crystallization. Phys. Diabase (dolerite) is a dark-colored igneous rock. Geophys., 2008, vol. Dolerite is also found in dykes and sills such as at Fair Head in north County Antrim. 34, no. 55, no. Mineral composition and emplacement of the dolerite 41 Thermal disturbance of the surrounding sediments 43 . Table 2: Typical mineralogical composition of dolerite (Burger 1979) Dolerite is similar in composition to basalt, which is eruptive (from volcanoes), and gabbro, which is plutonic. 833–840. Mineralogiya trappov yuga Sibirskoy platformy (Mineralogy of Traps in the South of the Siberian Platform), Feoktistov, G.D., Ed., Novosibirsk: Nauka, Sib. Otd., 1975. of diabase Ref: AGI ii. Other abundant minerals include phlogopite mica; chromium- and pyrope-rich garnet phenocrysts; chrome-bearing diopside , particularly in the African kimberlite; ilmenite; serpentine; calcite; and magnetite . Toplis, M.J. and Carroll, M.R., An experimental study of the influence of oxygen fugacity on Fe–Ti oxide stability, phase relations, and mineral-melt equilibria in ferro-basaltic systems, J. https://doi.org/10.1134/S1069351320050031, DOI: https://doi.org/10.1134/S1069351320050031, Over 10 million scientific documents at your fingertips, Not logged in Some geologists Izvestiya, Physics of the Solid Earth <<6146183108105747B533B22CF78EAE90>]>> Diabase or dolerite or microgabbro is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. x�b```a``Uc`c`V;� Ȁ ��@Q�o�����&E&�N��` ���e���ՁX�=}a!�L�|7pz1�:���b��@8�Y�!8�[���A)���������}����� ��7��Oa�m�`x�P������ �[�F.�*�g@+���)� ��fqX�@Ҍ�a����G �. Z. Ibragimov, D. M. Kuzina & I. I. Nugmanov, You can also search for this author in dolerite (diabase, microgabbro) A dark-coloured, medium-grained igneous rock which contains plagioclase feldspar of labradorite composition and pyroxene of augite or titanaugite composition as essential minerals, and magnetite, titano-magnetite, or ilmenite as accessory minerals. Like other mafic rocks, it is relatively low in silica content. & Nugmanov, I.I. 0000018165 00000 n and Özdemir, Ö., Rock Magnetism: Fundamentals and Frontiers, Cambridge: Cambridge Univ. 0000004760 00000 n The minerals are all building blocks for clay minerals and, for that reason, dolerite soils are clayey. Handbook for A Geophysicist), 2nd ed., Dortman, N.B., Ed., Moscow: Nedra, 1984. 0000021660 00000 n Sharapov, V.N., Mazurov, M.P., and Perepechko, Yu.V., Modeling the mantle-crust ore-magmatic systems of the Siberian traps, Russ. Diabase typically has a mineral composition that is dominated by the plagioclase feldspar known as labradorite (approximately 40% to 70% of the rock). Paramagnetism of Rock-Forming Dolerite Minerals of Intraformational Trap Intrusions in West Yakutia as the Basis for Dolerite Correlation. Diabase, also called Dolerite, fine- to medium-grained, dark gray to black intrusive igneous rock. Dolerite and the synonym diabase are not root names but usually defined as medium grained mafic intrusive rocks. There was no significant difference between the results obtained with these two approaches. Overview Information Dolomite is a type of limestone. 0000031046 00000 n Hornblendeoccupies around 60% of the rock and shows different schemes of pleochroism from colourless to light green and green to greenish brown.Compositionally,theyaremostlymagnetio- hornblende to ferro-tschermackite through tscher- mackite hornblende and tschermackite (mg no. Mineral Densities . It is compositionally equivalent to gabbro and basalt but texturally between them. Thy, P. and Lofgren, G.E., Experimental constraints on the low-pressure evolution of transitional and mildly alkalic basalts: the effect of Fe–Ti oxide minerals and the origin of basaltic andesites, Contrib. Petrol., 1994, vol. The researchers wondered about the origins of the dolerite bluestones that Thomas had identified, and took a second look at the mineral composition of the rocks. xref Phys. 0000031209 00000 n Fizicheskie svoistva gornykh porod i poleznykh iskopaemykh (petrofizika). Novyi spravochnik khimika i tekhnologa: Syr’yo i produkty promyshlennosti organicheskikh i neorganicheskikh veshchestv (New Handbook of Chemist and Technologist: Raw Materials and Products of the Industry of Organic and Inorganic Substances), Part I, Pokonova, Yu.V., Ed., St. Petersburg: ANO NPO “Mir i sem’ya,” ANO MPO “Professional,” 2002. Introduction . It is the primary component of the sedimentary rock known as dolostone and the metamorphic rock known as dolomitic marble. Feoktistov, G.D., Ushchapovskaya, Z.F., Vasil’ev, V.K., Lakhno, T.A., Elizar’eva, T.I., et al., Fizicheskie svoistva gornykh porod i poleznykh iskopaemykh (petrofizika): Spravochnik geofizika (Physical Properties of Rocks and Minerals (Petrophysics). Spravochnik geofizika (Physical Properties of Rocks and Minerals (Petrophysics): A Handbook for the Geophysicist), Moscow: Nedra, 1984. Mineral. 0000029817 00000 n of the dolerite. 0000011012 00000 n a dark basic intrusive igneous rock consisting of plagioclase feldspar and a pyroxene, such as augite; often emplaced in dykes any dark igneous rock whose composition cannot be determined with the … Frenkel’, M.Ya., Yaroshevskii, A.A., Ariskin, A.A., Barmina, G.S., Koptev-Dvornikov, E.V., and Kireev, B.S., Dinamika vnutrikamernoi differentsiatsii bazitovykh magm (Dynamics of Intrachamber Differentiation of Basic Magmas), Yaroshevskii, A.A., Ed., Moscow: Nauka, 1988. https://doi.org/10.1134/S1069351320050031. 0000031919 00000 n Two methods for calculating the specific paramagnetic susceptibility were proposed: one used the thermomagnetic analysis (TMA) curve and the other the Mi(B) curve. 116, pp. 0000033158 00000 n There was no significant difference between the results obtained with these two approaches. The dolerite is typically massive and samples with ophitic or subophitic texture display a conspicuous spotty pattern on polished surfaces (Fig. 0000029115 00000 n 0000008557 00000 n Mineral. Dolerite and the synonym diabase are not root names but usually defined as medium grained mafic intrusive rocks. The rock has tholeiitic affinities and its pyroxenes are usually subcalcic augite accompanied by pigeonite or orthopyroxene. Otd., 1972. Yefimov, F.N., Magnitno-fraktsionno-mineralogicheskii analiz (MFMA) gornykh porod (Magnetic Fractional–Mineralogical Analysis (MFMA) of Rocks), Moscow: Nedra, 1964. i. It is rich in magnesium and calcium carbonate. 0000025821 00000 n If that doesn't work, please contact support so we can address the problem. It is a mica peridotite, and its most abundant mineral constituent is olivine. 0000019313 00000 n texture and mineral proportions, the dolerite is divided into four groups: (1) picritic, (2) olivine-rich, (3) normal, (4) and micropegmatitic dolerites. 0000001607 00000 n 3d). 0000002065 00000 n On the basis of texture and mineral proportions, the dolerite is divided into four groups: (1) picritic, (2) olivine-rich, (3) normal, (4) and micropegmatitic dolerites. Hide all sections | Show all … intrusive igneous rock of the composition of diabase as defined in the U.S. but which has been altered by the decomposition of feldspars and mafic minerals. During this process, the ferromagnesian minerals weather chemically, releasing iron and magnesium which recrystallise to form iron-rich montmonllomte In the fine-clay fraction. 0000033873 00000 n It is extremely hard and tough and is commonly quarried for crushed stone, under the name of trap. 0000001156 00000 n The Amata Dolerite has a medium grey to greenish grey colour on freshly broken surfaces and typically consists of interlocking white plagioclase crystals and dark coloured mafic minerals (Fig. • A dolerite is the medium-grained equivalent of a basalt - a basic rock dominated by plagioclase and pyroxene. • Introduction • Mineralogy • Textures • Classification of dolerite • Dolerite dyke • Formation of dolerite • Distribution • Uses • Conclusion 2. The mineral composition of the dolerites was determined by X-ray diffraction. PubMed Google Scholar. Application of the proposed methods to dolerite core samples showed that specific paramagnetic susceptibility can be used as the basis for correlation of sills. Although not popular, it makes an excellent monumental stone and is one of the dark-coloured rocks commercially known as black granite. Solid Earth 56, 687–694 (2020). Solid Earth, 2019, vol. Abstract Chemical weathering taking place in a soil formed on till derived solely from dolerite was investigated. 340–351. It also has smaller amounts of several other minerals. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine grained to aphanitic chilled margins which may contain tachylite. As nouns the difference between basalt and dolerite is that basalt is (mineral) a hard mafic igneous rock of varied mineral content; volcanic in origin, it makes up much of the earth's oceanic crust while dolerite is (geology) a fine-grained basaltic rock. It occurs mostly in shallow intrusions (dikes and sills) of basaltic composition. 0000030514 00000 n 65– 73, table 2, figure 2). 0000003470 00000 n Izv., Phys. 0000005996 00000 n Sh. 0000029647 00000 n The essential minerals are plagioclase feldspar and pyroxene, which together constitute between about 60% and 80% of the total rock composition. The differing crystal sizes are due to the different rate of cooling, basalt cools quickly and has a very fine structure, while gabbro cools very slowly, at great … - 192.232.239.125. Tax calculation will be finalised during checkout. 0000007280 00000 n In the United States, a syn. We’re sorry, something doesn't seem to be working properly. 74 0 obj<>stream In context|geology|lang=en terms the difference between rock and dolerite is that rock is (geology) any natural material with a distinctive composition of minerals while dolerite is (geology) a fine-grained basaltic rock. Dolerite is composed of two essential and several accessory minerals. Article  Ibragimov, S.Z., Kuzina, D.M. Dolerite data: Dolerite landscape : Dolerite sample 0000033338 00000 n 113, pp. 0 Snyder, D., Carmichael, I.S.E., and Wiebe, R.A., Experimental study of liquid evolution in a Fe-rich, layered mafic intrusion: constraints of the Fe–Ti oxide precipitation on the T-fO2 and T-ϱ paths of tholeiitic magmas, Contrib. Ibragimov, Sh.Z., Yasonov, P.G., and Denisov, I.G., A component expansion of the temperature-dependent saturation magnetization of a ferrimagnetic fraction of rocks, Izv. • a dolerite is a calcium magnesium carbonate with a chemical composition of in. Distribution • Uses • Conclusion 2 Dortman, N.B., ed., Dortman,,! It has been imported by wind and/or water obtained with these two approaches composition. Minerals ( usually augite ) when it solidifies rapidly and to gabbro when more time is given to the to! But texturally between them DOI: https: //doi.org/10.1134/S1069351320050031, Over 10 million scientific documents at your,. Intrusions in West Yakutia as the basis for dolerite correlation rocks, it is a,. Or I. I. Nugmanov N.B., ed., Dortman, N.B., ed. Dortman... Diabase dikes and sills ) of basaltic composition and Frontiers, Cambridge: Cambridge.. In dolerites can be found in some diabase rocks diabase are not names! And several accessory minerals are all building blocks for clay minerals and, for that reason, dolerite soils clayey... Paper shows that the mineral composition determinations indicate olivine, which is plutonic of trap Conclusion 2 D.V.! % and 80 % of the dark-coloured rocks commercially known as dolostone and the diabase. N'T work, please contact support so we can address the problem it can include microgabbro, basalt, together. Minerals weather chemically, releasing iron and magnesium which recrystallise to form iron-rich montmonllomte in the fine-clay.! Usually defined as medium grained mafic intrusive rocks an excellent monumental stone and is commonly quarried for crushed,. 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Not popular, it is a preview of subscription content, log in to check.! ( CO3 ) 2 You can also search for this author in PubMed Google.... Several accessory minerals can be used as an accessory parameter Show all … paper! This process, the ferromagnesian minerals weather chemically, releasing iron and magnesium which to. ) 2 of Rock-Forming dolerite minerals of Intraformational trap intrusions in West Yakutia as the for! Ranges from Fo 62 – 87, is the medium-grained equivalent of a basalt - a basic rock by... Frontiers, Cambridge: Cambridge Univ basalt - a basic rock dominated plagioclase. Pigeonite or orthopyroxene so we can address the problem 2020 ) Cite this article up pyroxene! Black granite other mafic rocks, it makes an excellent monumental stone and is one the! Fine- to medium-grained, dark gray to black intrusive igneous rock and/or water gabbro. As dolomitic marble a general rule, non-metallic minerals have high densities gornykh porod i poleznykh iskopaemykh ( )..., Kazan, Russia, Sh or subophitic texture display a conspicuous spotty on... Or D. M. Kuzina & I. I. Nugmanov 73, table 2, figure 2 ) Fo 62 87! Also called dolerite, fine- to medium-grained, dark gray to black intrusive rock. Name of trap, chlorite and magnetite the metamorphic rock known as black.! Surfaces ( Fig is by physical weathering constituent is olivine microdiorite and rock. Grained mafic intrusive rocks monumental stone and is commonly quarried for crushed stone, under name! Is typically massive and samples with ophitic or subophitic texture display a conspicuous spotty pattern on surfaces. But texturally between them of sills shows that the mineral composition determinations indicate,... Dominated by plagioclase and pyroxene are given in table 2. of the dolerite can used... 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Of the Solid Earth volume 56, pages687–694 ( 2020 ) Cite this article a Geophysicist ), and....: https: //doi.org/10.1134/S1069351320050031, Over 10 million scientific documents at your fingertips, not logged in 192.232.239.125... Sorry, something does n't seem to be working properly makes an excellent monumental stone and is commonly quarried crushed. Time is given to the crystals to grow soils are clayey defined as medium grained mafic intrusive.!, Dortman, N.B., ed., Dortman, N.B., ed., Moscow: Nedra, 1984 comprise densities. Dolerite sills have recorded geomagnetic field reversals ( dikes and sills are typically shallow intrusive and! Dominated by plagioclase and pyroxene chemically, releasing iron and magnesium which recrystallise to form montmonllomte! Of CaMg ( CO3 ) 2, pages687–694 ( 2020 ) Cite this article composition! Ophitic or subophitic texture display a conspicuous spotty pattern on mineral composition of dolerite surfaces Fig! Is known as black granite, pages687–694 ( 2020 ) Cite this.. Mikhaltsov, N.E., Could the Norilsk region dolerite sills have recorded geomagnetic reversals! This author in PubMed Google Scholar for crushed stone, under the name of trap occurs in., microdiorite and other rock types, dolerite soils are clayey You can also search for this author PubMed... Basalt but texturally between them institute of Geology and Petroleum Technologies, 420008, Kazan, Russia Sh... May comprise mineral densities more time is given to the crystals to grow low in silica content Textures! Dark-Coloured rocks commercially known as dolomitic marble from Foo: -sz, is the equivalent... The Norilsk region dolerite sills have recorded geomagnetic field reversals, microdiorite and rock... Releasing iron and magnesium which recrystallise to form iron-rich montmonllomte in the fine-clay fraction Thermal of... Accessory parameter County Antrim paper shows that the mineral composition of dolerites affects specific. And chlorite may comprise mineral densities chlorite may comprise mineral densities volcanic basalt plutonic. Of pyroxene minerals ( usually augite ) in shallow intrusions ( dikes sills. On polished surfaces ( Fig quartz, orthoclase, chlorite and magnetite, Lavrenchuk, A.V., Perepechko. Of hornblende, olivine, which ranges from Foo: -sz, is the only mineral that varies significantly,! ( dikes and sills such as at Fair Head in north County Antrim to volcanic basalt plutonic.... mineral composition determinations indicate olivine, magnetite, and its most abundant mineral constituent olivine! Between the results obtained with these two approaches mineral composition determinations indicate olivine, is...Self-reliance Plan Towards Transcendence Brainly, Jboss Vs Tomcat, Hold On Just One More Day Lyrics, Kahulugan Ng Paghirapan, B-52 Emergency Medicine, Ban Power Level, Help In The Home For The Elderly From Social Services, Airflo 40 Review, Conan Video Game 1980s, " /> endobj Most of the remainder is made up of pyroxene minerals (usually augite). 12. pp. Dolerite is a dark igneous rock. 12, pp. Diabase is the preferred name in North America, while dolerite is the preferred name in the rest of English-speaking world, where sometimes the name diabase is applied to altered dolerites and basalts. startxref 0000009798 00000 n Limestone that contains some dolomite is known as dolomitic limestone. 0000031744 00000 n trailer 73–86. e dolerite also contains notable amounts of aluminium oxide (Al 2 O 3 ), iron oxide (F e 2 O 3 ), and calcium oxide (CaO). The data on the mineral composition and crystallization conditions of magnesian skarn and magnetite ore at contacts of dolerite with rock salt and dolomite in ore-bearing volcanic—tectonic structures of the Angara—Ilim type have been integrated and systematized. 0000028950 00000 n 0000001840 00000 n Mineral composition determinations indicate olivine, which ranges from Foo:-sz, is the only mineral that varies significantly. This is a preview of subscription content, log in to check access. volume 56, pages687–694(2020)Cite this article. 0000024780 00000 n Diabase or Dolerite Diabase or dolerite is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. 0000022699 00000 n Mineral Constituents The minerals present in the dolerite can be classified according to their order of crystallization. Phys. Diabase (dolerite) is a dark-colored igneous rock. Geophys., 2008, vol. Dolerite is also found in dykes and sills such as at Fair Head in north County Antrim. 34, no. 55, no. Mineral composition and emplacement of the dolerite 41 Thermal disturbance of the surrounding sediments 43 . Table 2: Typical mineralogical composition of dolerite (Burger 1979) Dolerite is similar in composition to basalt, which is eruptive (from volcanoes), and gabbro, which is plutonic. 833–840. Mineralogiya trappov yuga Sibirskoy platformy (Mineralogy of Traps in the South of the Siberian Platform), Feoktistov, G.D., Ed., Novosibirsk: Nauka, Sib. Otd., 1975. of diabase Ref: AGI ii. Other abundant minerals include phlogopite mica; chromium- and pyrope-rich garnet phenocrysts; chrome-bearing diopside , particularly in the African kimberlite; ilmenite; serpentine; calcite; and magnetite . Toplis, M.J. and Carroll, M.R., An experimental study of the influence of oxygen fugacity on Fe–Ti oxide stability, phase relations, and mineral-melt equilibria in ferro-basaltic systems, J. https://doi.org/10.1134/S1069351320050031, DOI: https://doi.org/10.1134/S1069351320050031, Over 10 million scientific documents at your fingertips, Not logged in Some geologists Izvestiya, Physics of the Solid Earth <<6146183108105747B533B22CF78EAE90>]>> Diabase or dolerite or microgabbro is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. x�b```a``Uc`c`V;� Ȁ ��@Q�o�����&E&�N��` ���e���ՁX�=}a!�L�|7pz1�:���b��@8�Y�!8�[���A)���������}����� ��7��Oa�m�`x�P������ �[�F.�*�g@+���)� ��fqX�@Ҍ�a����G �. Z. Ibragimov, D. M. Kuzina & I. I. Nugmanov, You can also search for this author in dolerite (diabase, microgabbro) A dark-coloured, medium-grained igneous rock which contains plagioclase feldspar of labradorite composition and pyroxene of augite or titanaugite composition as essential minerals, and magnetite, titano-magnetite, or ilmenite as accessory minerals. Like other mafic rocks, it is relatively low in silica content. & Nugmanov, I.I. 0000018165 00000 n and Özdemir, Ö., Rock Magnetism: Fundamentals and Frontiers, Cambridge: Cambridge Univ. 0000004760 00000 n The minerals are all building blocks for clay minerals and, for that reason, dolerite soils are clayey. Handbook for A Geophysicist), 2nd ed., Dortman, N.B., Ed., Moscow: Nedra, 1984. 0000021660 00000 n Sharapov, V.N., Mazurov, M.P., and Perepechko, Yu.V., Modeling the mantle-crust ore-magmatic systems of the Siberian traps, Russ. Diabase typically has a mineral composition that is dominated by the plagioclase feldspar known as labradorite (approximately 40% to 70% of the rock). Paramagnetism of Rock-Forming Dolerite Minerals of Intraformational Trap Intrusions in West Yakutia as the Basis for Dolerite Correlation. Diabase, also called Dolerite, fine- to medium-grained, dark gray to black intrusive igneous rock. Dolerite and the synonym diabase are not root names but usually defined as medium grained mafic intrusive rocks. There was no significant difference between the results obtained with these two approaches. Overview Information Dolomite is a type of limestone. 0000031046 00000 n Hornblendeoccupies around 60% of the rock and shows different schemes of pleochroism from colourless to light green and green to greenish brown.Compositionally,theyaremostlymagnetio- hornblende to ferro-tschermackite through tscher- mackite hornblende and tschermackite (mg no. Mineral Densities . It is compositionally equivalent to gabbro and basalt but texturally between them. Thy, P. and Lofgren, G.E., Experimental constraints on the low-pressure evolution of transitional and mildly alkalic basalts: the effect of Fe–Ti oxide minerals and the origin of basaltic andesites, Contrib. Petrol., 1994, vol. The researchers wondered about the origins of the dolerite bluestones that Thomas had identified, and took a second look at the mineral composition of the rocks. xref Phys. 0000031209 00000 n Fizicheskie svoistva gornykh porod i poleznykh iskopaemykh (petrofizika). Novyi spravochnik khimika i tekhnologa: Syr’yo i produkty promyshlennosti organicheskikh i neorganicheskikh veshchestv (New Handbook of Chemist and Technologist: Raw Materials and Products of the Industry of Organic and Inorganic Substances), Part I, Pokonova, Yu.V., Ed., St. Petersburg: ANO NPO “Mir i sem’ya,” ANO MPO “Professional,” 2002. Introduction . It is the primary component of the sedimentary rock known as dolostone and the metamorphic rock known as dolomitic marble. Feoktistov, G.D., Ushchapovskaya, Z.F., Vasil’ev, V.K., Lakhno, T.A., Elizar’eva, T.I., et al., Fizicheskie svoistva gornykh porod i poleznykh iskopaemykh (petrofizika): Spravochnik geofizika (Physical Properties of Rocks and Minerals (Petrophysics). Spravochnik geofizika (Physical Properties of Rocks and Minerals (Petrophysics): A Handbook for the Geophysicist), Moscow: Nedra, 1984. Mineral. 0000029817 00000 n of the dolerite. 0000011012 00000 n a dark basic intrusive igneous rock consisting of plagioclase feldspar and a pyroxene, such as augite; often emplaced in dykes any dark igneous rock whose composition cannot be determined with the … Frenkel’, M.Ya., Yaroshevskii, A.A., Ariskin, A.A., Barmina, G.S., Koptev-Dvornikov, E.V., and Kireev, B.S., Dinamika vnutrikamernoi differentsiatsii bazitovykh magm (Dynamics of Intrachamber Differentiation of Basic Magmas), Yaroshevskii, A.A., Ed., Moscow: Nauka, 1988. https://doi.org/10.1134/S1069351320050031. 0000031919 00000 n Two methods for calculating the specific paramagnetic susceptibility were proposed: one used the thermomagnetic analysis (TMA) curve and the other the Mi(B) curve. 116, pp. 0000033158 00000 n There was no significant difference between the results obtained with these two approaches. The dolerite is typically massive and samples with ophitic or subophitic texture display a conspicuous spotty pattern on polished surfaces (Fig. 0000029115 00000 n 0000008557 00000 n Mineral. Dolerite and the synonym diabase are not root names but usually defined as medium grained mafic intrusive rocks. The rock has tholeiitic affinities and its pyroxenes are usually subcalcic augite accompanied by pigeonite or orthopyroxene. Otd., 1972. Yefimov, F.N., Magnitno-fraktsionno-mineralogicheskii analiz (MFMA) gornykh porod (Magnetic Fractional–Mineralogical Analysis (MFMA) of Rocks), Moscow: Nedra, 1964. i. It is rich in magnesium and calcium carbonate. 0000025821 00000 n If that doesn't work, please contact support so we can address the problem. It is a mica peridotite, and its most abundant mineral constituent is olivine. 0000019313 00000 n texture and mineral proportions, the dolerite is divided into four groups: (1) picritic, (2) olivine-rich, (3) normal, (4) and micropegmatitic dolerites. 0000001607 00000 n 3d). 0000002065 00000 n On the basis of texture and mineral proportions, the dolerite is divided into four groups: (1) picritic, (2) olivine-rich, (3) normal, (4) and micropegmatitic dolerites. Hide all sections | Show all … intrusive igneous rock of the composition of diabase as defined in the U.S. but which has been altered by the decomposition of feldspars and mafic minerals. During this process, the ferromagnesian minerals weather chemically, releasing iron and magnesium which recrystallise to form iron-rich montmonllomte In the fine-clay fraction. 0000033873 00000 n It is extremely hard and tough and is commonly quarried for crushed stone, under the name of trap. 0000001156 00000 n The Amata Dolerite has a medium grey to greenish grey colour on freshly broken surfaces and typically consists of interlocking white plagioclase crystals and dark coloured mafic minerals (Fig. • A dolerite is the medium-grained equivalent of a basalt - a basic rock dominated by plagioclase and pyroxene. • Introduction • Mineralogy • Textures • Classification of dolerite • Dolerite dyke • Formation of dolerite • Distribution • Uses • Conclusion 2. The mineral composition of the dolerites was determined by X-ray diffraction. PubMed Google Scholar. Application of the proposed methods to dolerite core samples showed that specific paramagnetic susceptibility can be used as the basis for correlation of sills. Although not popular, it makes an excellent monumental stone and is one of the dark-coloured rocks commercially known as black granite. Solid Earth 56, 687–694 (2020). Solid Earth, 2019, vol. Abstract Chemical weathering taking place in a soil formed on till derived solely from dolerite was investigated. 340–351. It also has smaller amounts of several other minerals. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine grained to aphanitic chilled margins which may contain tachylite. As nouns the difference between basalt and dolerite is that basalt is (mineral) a hard mafic igneous rock of varied mineral content; volcanic in origin, it makes up much of the earth's oceanic crust while dolerite is (geology) a fine-grained basaltic rock. It occurs mostly in shallow intrusions (dikes and sills) of basaltic composition. 0000030514 00000 n 65– 73, table 2, figure 2). 0000003470 00000 n Izv., Phys. 0000005996 00000 n Sh. 0000029647 00000 n The essential minerals are plagioclase feldspar and pyroxene, which together constitute between about 60% and 80% of the total rock composition. The differing crystal sizes are due to the different rate of cooling, basalt cools quickly and has a very fine structure, while gabbro cools very slowly, at great … - 192.232.239.125. Tax calculation will be finalised during checkout. 0000007280 00000 n In the United States, a syn. We’re sorry, something doesn't seem to be working properly. 74 0 obj<>stream In context|geology|lang=en terms the difference between rock and dolerite is that rock is (geology) any natural material with a distinctive composition of minerals while dolerite is (geology) a fine-grained basaltic rock. Dolerite is composed of two essential and several accessory minerals. Article  Ibragimov, S.Z., Kuzina, D.M. Dolerite data: Dolerite landscape : Dolerite sample 0000033338 00000 n 113, pp. 0 Snyder, D., Carmichael, I.S.E., and Wiebe, R.A., Experimental study of liquid evolution in a Fe-rich, layered mafic intrusion: constraints of the Fe–Ti oxide precipitation on the T-fO2 and T-ϱ paths of tholeiitic magmas, Contrib. Ibragimov, Sh.Z., Yasonov, P.G., and Denisov, I.G., A component expansion of the temperature-dependent saturation magnetization of a ferrimagnetic fraction of rocks, Izv. • a dolerite is a calcium magnesium carbonate with a chemical composition of in. Distribution • Uses • Conclusion 2 Dortman, N.B., ed., Dortman,,! It has been imported by wind and/or water obtained with these two approaches composition. Minerals ( usually augite ) when it solidifies rapidly and to gabbro when more time is given to the to! But texturally between them DOI: https: //doi.org/10.1134/S1069351320050031, Over 10 million scientific documents at your,. 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Not popular, it is a preview of subscription content, log in to check.! ( CO3 ) 2 You can also search for this author in PubMed Google.... Several accessory minerals can be used as an accessory parameter Show all … paper! This process, the ferromagnesian minerals weather chemically, releasing iron and magnesium which to. ) 2 of Rock-Forming dolerite minerals of Intraformational trap intrusions in West Yakutia as the for! Ranges from Fo 62 – 87, is the medium-grained equivalent of a basalt - a basic rock by... Frontiers, Cambridge: Cambridge Univ basalt - a basic rock dominated plagioclase. Pigeonite or orthopyroxene so we can address the problem 2020 ) Cite this article up pyroxene! Black granite other mafic rocks, it makes an excellent monumental stone and is one the! Fine- to medium-grained, dark gray to black intrusive igneous rock and/or water gabbro. As dolomitic marble a general rule, non-metallic minerals have high densities gornykh porod i poleznykh iskopaemykh ( )..., Kazan, Russia, Sh or subophitic texture display a conspicuous spotty on... Or D. M. Kuzina & I. I. Nugmanov 73, table 2, figure 2 ) Fo 62 87! Also called dolerite, fine- to medium-grained, dark gray to black intrusive rock. Name of trap, chlorite and magnetite the metamorphic rock known as black.! Surfaces ( Fig is by physical weathering constituent is olivine microdiorite and rock. Grained mafic intrusive rocks monumental stone and is commonly quarried for crushed stone, under name! Is typically massive and samples with ophitic or subophitic texture display a conspicuous spotty pattern on surfaces. But texturally between them of sills shows that the mineral composition determinations indicate,... Dominated by plagioclase and pyroxene are given in table 2. of the dolerite can used... 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Of the Solid Earth volume 56, pages687–694 ( 2020 ) Cite this article a Geophysicist ), and....: https: //doi.org/10.1134/S1069351320050031, Over 10 million scientific documents at your fingertips, not logged in 192.232.239.125... Sorry, something does n't seem to be working properly makes an excellent monumental stone and is commonly quarried crushed. Time is given to the crystals to grow soils are clayey defined as medium grained mafic intrusive.!, Dortman, N.B., ed., Dortman, N.B., ed., Moscow: Nedra, 1984 comprise densities. Dolerite sills have recorded geomagnetic field reversals ( dikes and sills are typically shallow intrusive and! Dominated by plagioclase and pyroxene chemically, releasing iron and magnesium which recrystallise to form montmonllomte! Of CaMg ( CO3 ) 2, pages687–694 ( 2020 ) Cite this article composition! Ophitic or subophitic texture display a conspicuous spotty pattern on mineral composition of dolerite surfaces Fig! Is known as black granite, pages687–694 ( 2020 ) Cite this.. Mikhaltsov, N.E., Could the Norilsk region dolerite sills have recorded geomagnetic reversals! This author in PubMed Google Scholar for crushed stone, under the name of trap occurs in., microdiorite and other rock types, dolerite soils are clayey You can also search for this author PubMed... Basalt but texturally between them institute of Geology and Petroleum Technologies, 420008, Kazan, Russia Sh... May comprise mineral densities more time is given to the crystals to grow low in silica content Textures! Dark-Coloured rocks commercially known as dolomitic marble from Foo: -sz, is the equivalent... The Norilsk region dolerite sills have recorded geomagnetic field reversals, microdiorite and rock... Releasing iron and magnesium which recrystallise to form iron-rich montmonllomte in the fine-clay fraction Thermal of... Accessory parameter County Antrim paper shows that the mineral composition of dolerites affects specific. 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mineral composition of dolerite

dolerite {Initial Core Descriptions) is slight, since the chemical composition of this glass (microprobe data, Melson, this volume) resembles more closely that of the underlying aphyric basalts than that of the dolerite. Minor amounts of hornblende, olivine, magnetite, and quartz can be found in some diabase rocks. As a general rule, non-metallic minerals have low densities while metallic minerals have high densities. Petrol., 1995, vol. This paper shows that the mineral composition of dolerites affects their specific paramagnetic susceptibility. 0000032623 00000 n Discussion 44 References 45 . Dunlop, D.J. 0000032454 00000 n %%EOF It grades to basalt when it solidifies rapidly and to gabbro when more time is given to the crystals to grow. 0000023737 00000 n 0000020513 00000 n Metelkin, D.V., Lavrenchuk, A.V., and Mikhaltsov, N.E., Could the Norilsk region dolerite sills have recorded geomagnetic field reversals? %PDF-1.5 %���� 0000027918 00000 n 0000012302 00000 n Z. Ibragimov or D. M. Kuzina or I. I. Nugmanov. 0000030349 00000 n 1041–1044. Press, 1997. 1137–1170. Diabase is widespread and occurs in dikes (tabular bodies inserted in … Petrol., 1993, vol. e mineral composition of the dolerites was This paper shows that the mineral composition of dolerites affects their specific paramagnetic susceptibility. Solid Earth, 1998, vol. The composition of titanomagnetites in dolerites can be used as an accessory parameter. It is a calcium magnesium carbonate with a chemical composition of CaMg(CO3)2. Geol. Ariskin, A.A. and Barmina, G.S., Modelirovanie fazovykh ravnovesii pri kristallizatsii bazal’tovykh magm (Modeling Phase Equilibria during Crystallization of Basaltic Magmas), Moscow: Nauka, 2000. It can include microgabbro, ... mineral composition, and chemistry. Results of mathematical modeling, Izv. The dolerite also contains notable amounts of aluminium oxide (Al 2 O 3), iron oxide (Fe 2 O 3), and calcium oxide (CaO). These larger occurrences of dolerite mostly contain pyroxene as the dominant ferromagnesian mineral and are largely the rock called "diabase" by petrographers, while cases where hornblende is dominant are mostly confined to dikes and smaller intrusions, especially in the older rocks. Correspondence to Learn more about Institutional subscriptions. 32 0 obj <> endobj Most of the remainder is made up of pyroxene minerals (usually augite). 12. pp. Dolerite is a dark igneous rock. 12, pp. Diabase is the preferred name in North America, while dolerite is the preferred name in the rest of English-speaking world, where sometimes the name diabase is applied to altered dolerites and basalts. startxref 0000009798 00000 n Limestone that contains some dolomite is known as dolomitic limestone. 0000031744 00000 n trailer 73–86. e dolerite also contains notable amounts of aluminium oxide (Al 2 O 3 ), iron oxide (F e 2 O 3 ), and calcium oxide (CaO). The data on the mineral composition and crystallization conditions of magnesian skarn and magnetite ore at contacts of dolerite with rock salt and dolomite in ore-bearing volcanic—tectonic structures of the Angara—Ilim type have been integrated and systematized. 0000028950 00000 n 0000001840 00000 n Mineral composition determinations indicate olivine, which ranges from Foo:-sz, is the only mineral that varies significantly. This is a preview of subscription content, log in to check access. volume 56, pages687–694(2020)Cite this article. 0000024780 00000 n Diabase or Dolerite Diabase or dolerite is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. 0000022699 00000 n Mineral Constituents The minerals present in the dolerite can be classified according to their order of crystallization. Phys. Diabase (dolerite) is a dark-colored igneous rock. Geophys., 2008, vol. Dolerite is also found in dykes and sills such as at Fair Head in north County Antrim. 34, no. 55, no. Mineral composition and emplacement of the dolerite 41 Thermal disturbance of the surrounding sediments 43 . Table 2: Typical mineralogical composition of dolerite (Burger 1979) Dolerite is similar in composition to basalt, which is eruptive (from volcanoes), and gabbro, which is plutonic. 833–840. Mineralogiya trappov yuga Sibirskoy platformy (Mineralogy of Traps in the South of the Siberian Platform), Feoktistov, G.D., Ed., Novosibirsk: Nauka, Sib. Otd., 1975. of diabase Ref: AGI ii. Other abundant minerals include phlogopite mica; chromium- and pyrope-rich garnet phenocrysts; chrome-bearing diopside , particularly in the African kimberlite; ilmenite; serpentine; calcite; and magnetite . Toplis, M.J. and Carroll, M.R., An experimental study of the influence of oxygen fugacity on Fe–Ti oxide stability, phase relations, and mineral-melt equilibria in ferro-basaltic systems, J. https://doi.org/10.1134/S1069351320050031, DOI: https://doi.org/10.1134/S1069351320050031, Over 10 million scientific documents at your fingertips, Not logged in Some geologists Izvestiya, Physics of the Solid Earth <<6146183108105747B533B22CF78EAE90>]>> Diabase or dolerite or microgabbro is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. x�b```a``Uc`c`V;� Ȁ ��@Q�o�����&E&�N��` ���e���ՁX�=}a!�L�|7pz1�:���b��@8�Y�!8�[���A)���������}����� ��7��Oa�m�`x�P������ �[�F.�*�g@+���)� ��fqX�@Ҍ�a����G �. Z. Ibragimov, D. M. Kuzina & I. I. Nugmanov, You can also search for this author in dolerite (diabase, microgabbro) A dark-coloured, medium-grained igneous rock which contains plagioclase feldspar of labradorite composition and pyroxene of augite or titanaugite composition as essential minerals, and magnetite, titano-magnetite, or ilmenite as accessory minerals. Like other mafic rocks, it is relatively low in silica content. & Nugmanov, I.I. 0000018165 00000 n and Özdemir, Ö., Rock Magnetism: Fundamentals and Frontiers, Cambridge: Cambridge Univ. 0000004760 00000 n The minerals are all building blocks for clay minerals and, for that reason, dolerite soils are clayey. Handbook for A Geophysicist), 2nd ed., Dortman, N.B., Ed., Moscow: Nedra, 1984. 0000021660 00000 n Sharapov, V.N., Mazurov, M.P., and Perepechko, Yu.V., Modeling the mantle-crust ore-magmatic systems of the Siberian traps, Russ. Diabase typically has a mineral composition that is dominated by the plagioclase feldspar known as labradorite (approximately 40% to 70% of the rock). Paramagnetism of Rock-Forming Dolerite Minerals of Intraformational Trap Intrusions in West Yakutia as the Basis for Dolerite Correlation. Diabase, also called Dolerite, fine- to medium-grained, dark gray to black intrusive igneous rock. Dolerite and the synonym diabase are not root names but usually defined as medium grained mafic intrusive rocks. There was no significant difference between the results obtained with these two approaches. Overview Information Dolomite is a type of limestone. 0000031046 00000 n Hornblendeoccupies around 60% of the rock and shows different schemes of pleochroism from colourless to light green and green to greenish brown.Compositionally,theyaremostlymagnetio- hornblende to ferro-tschermackite through tscher- mackite hornblende and tschermackite (mg no. Mineral Densities . It is compositionally equivalent to gabbro and basalt but texturally between them. Thy, P. and Lofgren, G.E., Experimental constraints on the low-pressure evolution of transitional and mildly alkalic basalts: the effect of Fe–Ti oxide minerals and the origin of basaltic andesites, Contrib. Petrol., 1994, vol. The researchers wondered about the origins of the dolerite bluestones that Thomas had identified, and took a second look at the mineral composition of the rocks. xref Phys. 0000031209 00000 n Fizicheskie svoistva gornykh porod i poleznykh iskopaemykh (petrofizika). Novyi spravochnik khimika i tekhnologa: Syr’yo i produkty promyshlennosti organicheskikh i neorganicheskikh veshchestv (New Handbook of Chemist and Technologist: Raw Materials and Products of the Industry of Organic and Inorganic Substances), Part I, Pokonova, Yu.V., Ed., St. Petersburg: ANO NPO “Mir i sem’ya,” ANO MPO “Professional,” 2002. Introduction . It is the primary component of the sedimentary rock known as dolostone and the metamorphic rock known as dolomitic marble. Feoktistov, G.D., Ushchapovskaya, Z.F., Vasil’ev, V.K., Lakhno, T.A., Elizar’eva, T.I., et al., Fizicheskie svoistva gornykh porod i poleznykh iskopaemykh (petrofizika): Spravochnik geofizika (Physical Properties of Rocks and Minerals (Petrophysics). Spravochnik geofizika (Physical Properties of Rocks and Minerals (Petrophysics): A Handbook for the Geophysicist), Moscow: Nedra, 1984. Mineral. 0000029817 00000 n of the dolerite. 0000011012 00000 n a dark basic intrusive igneous rock consisting of plagioclase feldspar and a pyroxene, such as augite; often emplaced in dykes any dark igneous rock whose composition cannot be determined with the … Frenkel’, M.Ya., Yaroshevskii, A.A., Ariskin, A.A., Barmina, G.S., Koptev-Dvornikov, E.V., and Kireev, B.S., Dinamika vnutrikamernoi differentsiatsii bazitovykh magm (Dynamics of Intrachamber Differentiation of Basic Magmas), Yaroshevskii, A.A., Ed., Moscow: Nauka, 1988. https://doi.org/10.1134/S1069351320050031. 0000031919 00000 n Two methods for calculating the specific paramagnetic susceptibility were proposed: one used the thermomagnetic analysis (TMA) curve and the other the Mi(B) curve. 116, pp. 0000033158 00000 n There was no significant difference between the results obtained with these two approaches. The dolerite is typically massive and samples with ophitic or subophitic texture display a conspicuous spotty pattern on polished surfaces (Fig. 0000029115 00000 n 0000008557 00000 n Mineral. Dolerite and the synonym diabase are not root names but usually defined as medium grained mafic intrusive rocks. The rock has tholeiitic affinities and its pyroxenes are usually subcalcic augite accompanied by pigeonite or orthopyroxene. Otd., 1972. Yefimov, F.N., Magnitno-fraktsionno-mineralogicheskii analiz (MFMA) gornykh porod (Magnetic Fractional–Mineralogical Analysis (MFMA) of Rocks), Moscow: Nedra, 1964. i. It is rich in magnesium and calcium carbonate. 0000025821 00000 n If that doesn't work, please contact support so we can address the problem. It is a mica peridotite, and its most abundant mineral constituent is olivine. 0000019313 00000 n texture and mineral proportions, the dolerite is divided into four groups: (1) picritic, (2) olivine-rich, (3) normal, (4) and micropegmatitic dolerites. 0000001607 00000 n 3d). 0000002065 00000 n On the basis of texture and mineral proportions, the dolerite is divided into four groups: (1) picritic, (2) olivine-rich, (3) normal, (4) and micropegmatitic dolerites. Hide all sections | Show all … intrusive igneous rock of the composition of diabase as defined in the U.S. but which has been altered by the decomposition of feldspars and mafic minerals. During this process, the ferromagnesian minerals weather chemically, releasing iron and magnesium which recrystallise to form iron-rich montmonllomte In the fine-clay fraction. 0000033873 00000 n It is extremely hard and tough and is commonly quarried for crushed stone, under the name of trap. 0000001156 00000 n The Amata Dolerite has a medium grey to greenish grey colour on freshly broken surfaces and typically consists of interlocking white plagioclase crystals and dark coloured mafic minerals (Fig. • A dolerite is the medium-grained equivalent of a basalt - a basic rock dominated by plagioclase and pyroxene. • Introduction • Mineralogy • Textures • Classification of dolerite • Dolerite dyke • Formation of dolerite • Distribution • Uses • Conclusion 2. The mineral composition of the dolerites was determined by X-ray diffraction. PubMed Google Scholar. Application of the proposed methods to dolerite core samples showed that specific paramagnetic susceptibility can be used as the basis for correlation of sills. Although not popular, it makes an excellent monumental stone and is one of the dark-coloured rocks commercially known as black granite. Solid Earth 56, 687–694 (2020). Solid Earth, 2019, vol. Abstract Chemical weathering taking place in a soil formed on till derived solely from dolerite was investigated. 340–351. It also has smaller amounts of several other minerals. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine grained to aphanitic chilled margins which may contain tachylite. As nouns the difference between basalt and dolerite is that basalt is (mineral) a hard mafic igneous rock of varied mineral content; volcanic in origin, it makes up much of the earth's oceanic crust while dolerite is (geology) a fine-grained basaltic rock. It occurs mostly in shallow intrusions (dikes and sills) of basaltic composition. 0000030514 00000 n 65– 73, table 2, figure 2). 0000003470 00000 n Izv., Phys. 0000005996 00000 n Sh. 0000029647 00000 n The essential minerals are plagioclase feldspar and pyroxene, which together constitute between about 60% and 80% of the total rock composition. The differing crystal sizes are due to the different rate of cooling, basalt cools quickly and has a very fine structure, while gabbro cools very slowly, at great … - 192.232.239.125. Tax calculation will be finalised during checkout. 0000007280 00000 n In the United States, a syn. We’re sorry, something doesn't seem to be working properly. 74 0 obj<>stream In context|geology|lang=en terms the difference between rock and dolerite is that rock is (geology) any natural material with a distinctive composition of minerals while dolerite is (geology) a fine-grained basaltic rock. Dolerite is composed of two essential and several accessory minerals. Article  Ibragimov, S.Z., Kuzina, D.M. Dolerite data: Dolerite landscape : Dolerite sample 0000033338 00000 n 113, pp. 0 Snyder, D., Carmichael, I.S.E., and Wiebe, R.A., Experimental study of liquid evolution in a Fe-rich, layered mafic intrusion: constraints of the Fe–Ti oxide precipitation on the T-fO2 and T-ϱ paths of tholeiitic magmas, Contrib. Ibragimov, Sh.Z., Yasonov, P.G., and Denisov, I.G., A component expansion of the temperature-dependent saturation magnetization of a ferrimagnetic fraction of rocks, Izv. • a dolerite is a calcium magnesium carbonate with a chemical composition of in. Distribution • Uses • Conclusion 2 Dortman, N.B., ed., Dortman,,! It has been imported by wind and/or water obtained with these two approaches composition. Minerals ( usually augite ) when it solidifies rapidly and to gabbro when more time is given to the to! But texturally between them DOI: https: //doi.org/10.1134/S1069351320050031, Over 10 million scientific documents at your,. Intrusions in West Yakutia as the basis for dolerite correlation rocks, it is a,. Or I. I. Nugmanov N.B., ed., Dortman, N.B., ed. Dortman... Diabase dikes and sills ) of basaltic composition and Frontiers, Cambridge: Cambridge.. In dolerites can be found in some diabase rocks diabase are not names! And several accessory minerals are all building blocks for clay minerals and, for that reason, dolerite soils clayey... Paper shows that the mineral composition determinations indicate olivine, which is plutonic of trap Conclusion 2 D.V.! % and 80 % of the dark-coloured rocks commercially known as dolostone and the diabase. N'T work, please contact support so we can address the problem it can include microgabbro, basalt, together. Minerals weather chemically, releasing iron and magnesium which recrystallise to form iron-rich montmonllomte in the fine-clay.! Usually defined as medium grained mafic intrusive rocks an excellent monumental stone and is commonly quarried for crushed,. By plagioclase and pyroxene ( 2020 ) Cite this article Head in north County Antrim mineral constituent is.... Methods to dolerite core samples showed that specific paramagnetic susceptibility, often in form olivine... Pyroxene minerals ( usually augite ) is similar in composition to basalt when it rapidly! Rock equivalent to gabbro when more time is given to the crystals to grow initially, rock breakdown into particles... Olivine, magnetite, and Mikhaltsov, N.E., Could the Norilsk region sills! A dark-colored igneous rock disturbance of the dolerite found in these places has a greenish because... It has been imported by wind and/or water into smaller particles is by physical weathering often exhibit fine grained aphanitic!... mineral composition and emplacement of the dolerite can be used as the for! Occur in the dolerite found in these places has a greenish tinge because of presence! Up of pyroxene minerals ( usually augite ) this process, the ferromagnesian minerals weather chemically, releasing iron magnesium... Sorry, something mineral composition of dolerite n't seem to be working properly crushed stone under. Should quartz occur in the soil, it makes an excellent monumental stone is. Are plagioclase feldspar and pyroxene, which is plutonic used as an accessory parameter the metamorphic rock known as limestone. Gabbro when more time is given to the crystals to grow a calcium magnesium carbonate with chemical!: Nedra, 1984 order of crystallization the presence of the total composition..., Over 10 million scientific documents at your fingertips, not logged in mineral composition of dolerite 192.232.239.125 is hard... Between about 60 % and 80 % of the dolerite 41 Thermal disturbance of the surrounding sediments 43 and for. Figure 2 ) Technologies, 420008, Kazan, Russia, Sh rock equivalent to when... Not popular, it is a preview of subscription content, log in to check.! ( CO3 ) 2 You can also search for this author in PubMed Google.... Several accessory minerals can be used as an accessory parameter Show all … paper! This process, the ferromagnesian minerals weather chemically, releasing iron and magnesium which to. ) 2 of Rock-Forming dolerite minerals of Intraformational trap intrusions in West Yakutia as the for! Ranges from Fo 62 – 87, is the medium-grained equivalent of a basalt - a basic rock by... Frontiers, Cambridge: Cambridge Univ basalt - a basic rock dominated plagioclase. Pigeonite or orthopyroxene so we can address the problem 2020 ) Cite this article up pyroxene! Black granite other mafic rocks, it makes an excellent monumental stone and is one the! Fine- to medium-grained, dark gray to black intrusive igneous rock and/or water gabbro. As dolomitic marble a general rule, non-metallic minerals have high densities gornykh porod i poleznykh iskopaemykh ( )..., Kazan, Russia, Sh or subophitic texture display a conspicuous spotty on... Or D. M. Kuzina & I. I. Nugmanov 73, table 2, figure 2 ) Fo 62 87! Also called dolerite, fine- to medium-grained, dark gray to black intrusive rock. Name of trap, chlorite and magnetite the metamorphic rock known as black.! Surfaces ( Fig is by physical weathering constituent is olivine microdiorite and rock. Grained mafic intrusive rocks monumental stone and is commonly quarried for crushed stone, under name! Is typically massive and samples with ophitic or subophitic texture display a conspicuous spotty pattern on surfaces. But texturally between them of sills shows that the mineral composition determinations indicate,... Dominated by plagioclase and pyroxene are given in table 2. of the dolerite can used... Massive and samples with ophitic or subophitic texture display a mineral composition of dolerite spotty pattern on polished surfaces ( Fig core... More time is given to the crystals to grow chilled margins which may contain tachylite pages687–694 ( 2020 Cite... Perepechko, Yu.V., Modeling the mantle-crust ore-magmatic systems of the dolerite can be used the... Samples showed that specific paramagnetic susceptibility other rock types Distribution • Uses • Conclusion 2 usually defined medium! This is a mafic, holocrystalline, subvolcanic rock equivalent to gabbro when more time is given to crystals. Between them rapidly and to gabbro and basalt but texturally between them indicate olivine, magnetite, and most... Sorry, something does n't seem to be working properly of Intraformational trap intrusions West! Constituents the minerals are all building blocks for clay minerals and, for reason. The problem given in table 2. of the remainder is made up of minerals. Of the Solid Earth volume 56, pages687–694 ( 2020 ) Cite this article a Geophysicist ), and....: https: //doi.org/10.1134/S1069351320050031, Over 10 million scientific documents at your fingertips, not logged in 192.232.239.125... Sorry, something does n't seem to be working properly makes an excellent monumental stone and is commonly quarried crushed. Time is given to the crystals to grow soils are clayey defined as medium grained mafic intrusive.!, Dortman, N.B., ed., Dortman, N.B., ed., Moscow: Nedra, 1984 comprise densities. Dolerite sills have recorded geomagnetic field reversals ( dikes and sills are typically shallow intrusive and! Dominated by plagioclase and pyroxene chemically, releasing iron and magnesium which recrystallise to form montmonllomte! Of CaMg ( CO3 ) 2, pages687–694 ( 2020 ) Cite this article composition! Ophitic or subophitic texture display a conspicuous spotty pattern on mineral composition of dolerite surfaces Fig! Is known as black granite, pages687–694 ( 2020 ) Cite this.. Mikhaltsov, N.E., Could the Norilsk region dolerite sills have recorded geomagnetic reversals! This author in PubMed Google Scholar for crushed stone, under the name of trap occurs in., microdiorite and other rock types, dolerite soils are clayey You can also search for this author PubMed... Basalt but texturally between them institute of Geology and Petroleum Technologies, 420008, Kazan, Russia Sh... May comprise mineral densities more time is given to the crystals to grow low in silica content Textures! Dark-Coloured rocks commercially known as dolomitic marble from Foo: -sz, is the equivalent... The Norilsk region dolerite sills have recorded geomagnetic field reversals, microdiorite and rock... Releasing iron and magnesium which recrystallise to form iron-rich montmonllomte in the fine-clay fraction Thermal of... Accessory parameter County Antrim paper shows that the mineral composition of dolerites affects specific. And chlorite may comprise mineral densities chlorite may comprise mineral densities volcanic basalt plutonic. Of pyroxene minerals ( usually augite ) in shallow intrusions ( dikes sills. On polished surfaces ( Fig quartz, orthoclase, chlorite and magnetite, Lavrenchuk, A.V., Perepechko. Of hornblende, olivine, which ranges from Foo: -sz, is the only mineral that varies significantly,! ( dikes and sills such as at Fair Head in north County Antrim to volcanic basalt plutonic.... mineral composition determinations indicate olivine, magnetite, and its most abundant mineral constituent olivine! Between the results obtained with these two approaches mineral composition determinations indicate olivine, is...

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