Mineralogy of schists from the basement of the southwestern part of the Tazovsky peninsula of the West Siberian megabasin (Lenzitskaya oil exploration area, YNAD)
Relevance of the work. The crystalline basement of Western Siberia is a promising site in the search for oil and gas, but not a sufficiently studied subject. Promising rocks are granitoids and partly their metamorphic margins. Core samples from wells, which uncovered rocks of the basement of Western...
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ftdoajarticles:oai:doaj.org/article:de22aa6ebd274d4193b17df5e11974ee 2023-05-15T15:18:14+02:00 Mineralogy of schists from the basement of the southwestern part of the Tazovsky peninsula of the West Siberian megabasin (Lenzitskaya oil exploration area, YNAD) Vladimir Sergeevich PONOMAREV Kirill Svaytoslavich IVANOV Vera Vital’evna KHILLER 2019-06-01T00:00:00Z https://doi.org/10.21440/2307-2091-2019-2-20-27 https://doaj.org/article/de22aa6ebd274d4193b17df5e11974ee DE EN RU ger eng rus Ural State Mining University http://www.iuggu.ru/en/2-19-2 https://doaj.org/toc/2307-2091 https://doaj.org/toc/2500-2414 doi:10.21440/2307-2091-2019-2-20-27 2307-2091 2500-2414 https://doaj.org/article/de22aa6ebd274d4193b17df5e11974ee Izvestiâ Uralʹskogo Gosudarstvennogo Gornogo Universiteta, Iss 2, Pp 20-27 (2019) quartz-chlorite-mica schists mineralogy metamorphism basement West Siberian megabasin YNAD Mining engineering. Metallurgy TN1-997 article 2019 ftdoajarticles https://doi.org/10.21440/2307-2091-2019-2-20-27 2022-12-31T04:05:54Z Relevance of the work. The crystalline basement of Western Siberia is a promising site in the search for oil and gas, but not a sufficiently studied subject. Promising rocks are granitoids and partly their metamorphic margins. Core samples from wells, which uncovered rocks of the basement of Western Siberia, are unique because they are rare and extremely difficult to access, so it is necessary to conduct a comprehensive detailed core study for geodynamic reconstructions and to consider the geological evolution of the region. Purpose of the work. The determination of the material composition of quartz-chlorite-mica schists from the pre-Jurassic basement of the northern (Arctic) part of the West Siberian megabasin uncovered by the Lenzitskaya well No 77 (depth is 3516–3502 m) 265 km east of Salekhard within the Yamalo-Nenets Autonomous District (YNAD). Results. The studied quartz-chlorite-mica schists are fine-grained rocks of a greenish-gray color; they have an interdigitation of thin beds of rock enriched in mica-quartz-carbonate substance (up to 2 mm thick) with a small amount of chlorite, and layers of quartz-chlorite-mica composition (up to 3 mm) with the presence of carbonate boudin. Intimate crumpling is often observed in the rock. In the lower part of the section (depth is 3516 m), the rocks have a medium-grained structure and are composed of calcite (60%), quartz (25%), mica (10%) and chlorite (5%). The quartz-sericitic-chlorite-carbonate rock has a schistous form due to light layers of quartz-calcite composition with a thickness of up to 2 cm and thin layers of a chlorite-mica aggregate with a thickness of up to 2 mm. The following was established using X-ray electron probe microanalyzer CAMECA SX 100: muscovite, aluminoceladonite, quartz, chamosite, calcite, plagioclase, pumpellyite-(Fe2 +), rutile, fluorapatite, monazite, zircon, pyrite and chalcopyrite. Quartz-sericitic schists similar in composition were found by us in the basement rocks of the Priuralsky part of the West Siberian plate in the ... Article in Journal/Newspaper Arctic nenets Yamalo Nenets Siberia Directory of Open Access Journals: DOAJ Articles Arctic Salekhard ENVELOPE(66.602,66.602,66.530,66.530) Tazovsky ENVELOPE(78.716,78.716,67.472,67.472) News of the Ural State Mining University 1 2 20 27 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
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German English Russian |
topic |
quartz-chlorite-mica schists mineralogy metamorphism basement West Siberian megabasin YNAD Mining engineering. Metallurgy TN1-997 |
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quartz-chlorite-mica schists mineralogy metamorphism basement West Siberian megabasin YNAD Mining engineering. Metallurgy TN1-997 Vladimir Sergeevich PONOMAREV Kirill Svaytoslavich IVANOV Vera Vital’evna KHILLER Mineralogy of schists from the basement of the southwestern part of the Tazovsky peninsula of the West Siberian megabasin (Lenzitskaya oil exploration area, YNAD) |
topic_facet |
quartz-chlorite-mica schists mineralogy metamorphism basement West Siberian megabasin YNAD Mining engineering. Metallurgy TN1-997 |
description |
Relevance of the work. The crystalline basement of Western Siberia is a promising site in the search for oil and gas, but not a sufficiently studied subject. Promising rocks are granitoids and partly their metamorphic margins. Core samples from wells, which uncovered rocks of the basement of Western Siberia, are unique because they are rare and extremely difficult to access, so it is necessary to conduct a comprehensive detailed core study for geodynamic reconstructions and to consider the geological evolution of the region. Purpose of the work. The determination of the material composition of quartz-chlorite-mica schists from the pre-Jurassic basement of the northern (Arctic) part of the West Siberian megabasin uncovered by the Lenzitskaya well No 77 (depth is 3516–3502 m) 265 km east of Salekhard within the Yamalo-Nenets Autonomous District (YNAD). Results. The studied quartz-chlorite-mica schists are fine-grained rocks of a greenish-gray color; they have an interdigitation of thin beds of rock enriched in mica-quartz-carbonate substance (up to 2 mm thick) with a small amount of chlorite, and layers of quartz-chlorite-mica composition (up to 3 mm) with the presence of carbonate boudin. Intimate crumpling is often observed in the rock. In the lower part of the section (depth is 3516 m), the rocks have a medium-grained structure and are composed of calcite (60%), quartz (25%), mica (10%) and chlorite (5%). The quartz-sericitic-chlorite-carbonate rock has a schistous form due to light layers of quartz-calcite composition with a thickness of up to 2 cm and thin layers of a chlorite-mica aggregate with a thickness of up to 2 mm. The following was established using X-ray electron probe microanalyzer CAMECA SX 100: muscovite, aluminoceladonite, quartz, chamosite, calcite, plagioclase, pumpellyite-(Fe2 +), rutile, fluorapatite, monazite, zircon, pyrite and chalcopyrite. Quartz-sericitic schists similar in composition were found by us in the basement rocks of the Priuralsky part of the West Siberian plate in the ... |
format |
Article in Journal/Newspaper |
author |
Vladimir Sergeevich PONOMAREV Kirill Svaytoslavich IVANOV Vera Vital’evna KHILLER |
author_facet |
Vladimir Sergeevich PONOMAREV Kirill Svaytoslavich IVANOV Vera Vital’evna KHILLER |
author_sort |
Vladimir Sergeevich PONOMAREV |
title |
Mineralogy of schists from the basement of the southwestern part of the Tazovsky peninsula of the West Siberian megabasin (Lenzitskaya oil exploration area, YNAD) |
title_short |
Mineralogy of schists from the basement of the southwestern part of the Tazovsky peninsula of the West Siberian megabasin (Lenzitskaya oil exploration area, YNAD) |
title_full |
Mineralogy of schists from the basement of the southwestern part of the Tazovsky peninsula of the West Siberian megabasin (Lenzitskaya oil exploration area, YNAD) |
title_fullStr |
Mineralogy of schists from the basement of the southwestern part of the Tazovsky peninsula of the West Siberian megabasin (Lenzitskaya oil exploration area, YNAD) |
title_full_unstemmed |
Mineralogy of schists from the basement of the southwestern part of the Tazovsky peninsula of the West Siberian megabasin (Lenzitskaya oil exploration area, YNAD) |
title_sort |
mineralogy of schists from the basement of the southwestern part of the tazovsky peninsula of the west siberian megabasin (lenzitskaya oil exploration area, ynad) |
publisher |
Ural State Mining University |
publishDate |
2019 |
url |
https://doi.org/10.21440/2307-2091-2019-2-20-27 https://doaj.org/article/de22aa6ebd274d4193b17df5e11974ee |
long_lat |
ENVELOPE(66.602,66.602,66.530,66.530) ENVELOPE(78.716,78.716,67.472,67.472) |
geographic |
Arctic Salekhard Tazovsky |
geographic_facet |
Arctic Salekhard Tazovsky |
genre |
Arctic nenets Yamalo Nenets Siberia |
genre_facet |
Arctic nenets Yamalo Nenets Siberia |
op_source |
Izvestiâ Uralʹskogo Gosudarstvennogo Gornogo Universiteta, Iss 2, Pp 20-27 (2019) |
op_relation |
http://www.iuggu.ru/en/2-19-2 https://doaj.org/toc/2307-2091 https://doaj.org/toc/2500-2414 doi:10.21440/2307-2091-2019-2-20-27 2307-2091 2500-2414 https://doaj.org/article/de22aa6ebd274d4193b17df5e11974ee |
op_doi |
https://doi.org/10.21440/2307-2091-2019-2-20-27 |
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News of the Ural State Mining University |
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