Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
Secondary Changes of Rocks in Zhamanshin Meteorite Crater(Kazakhstan). / Сергиенко, Елена Сергеевна; Янсон, Светлана Юрьевна; Костеров, Андрей Александрович; Харитонский, Петр Владимирович; Фролов, Александр Михайлович.
IOP Conf. Series: Earth and Environmental Science. Том 459 3. ред. IOP Publishing Ltd., 2020. (IOP Conference Series: Earth and Environmental Science ).Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
}
TY - GEN
T1 - Secondary Changes of Rocks in Zhamanshin Meteorite Crater(Kazakhstan)
AU - Сергиенко, Елена Сергеевна
AU - Янсон, Светлана Юрьевна
AU - Костеров, Андрей Александрович
AU - Харитонский, Петр Владимирович
AU - Фролов, Александр Михайлович
N1 - Publisher Copyright: © 2020 Published under licence by IOP Publishing Ltd.
PY - 2020/4/14
Y1 - 2020/4/14
N2 - Magnetic properties, structure, and phase composition of samples of ferruginous rocks from the Zhamanshin meteorite crater have been investigated. X-ray phase analysis, microscopy and magnetometry have revealed that studied rocks can be considered as a fine-grained polymictic sandstone which undergone significant alteration. All samples appear highly ferruginous, with cement of goethite with small particles of the matrix. Detrital grains are quartz, feldspar, rarely mica, as well as monazite, ilmenite, zircon, and cassiterite in accessory quantities. Inclusions of glass, probably of impact origin, with low silica, high alumina, and high iron content have also been encountered. A characteristic feature of goethite is the presence of Mn and a pronounced zonal structure manifesting itself in an increased Al content. Intergrowths and druses of authigenic magnetite are found in voids and cracks; magnetite however appears completely by iron (hydr)oxides. These observations generally agree with the paleogeographic data, and suggest that the crater and its vicinity experienced significant changes of the redox regime in the post-impact time.
AB - Magnetic properties, structure, and phase composition of samples of ferruginous rocks from the Zhamanshin meteorite crater have been investigated. X-ray phase analysis, microscopy and magnetometry have revealed that studied rocks can be considered as a fine-grained polymictic sandstone which undergone significant alteration. All samples appear highly ferruginous, with cement of goethite with small particles of the matrix. Detrital grains are quartz, feldspar, rarely mica, as well as monazite, ilmenite, zircon, and cassiterite in accessory quantities. Inclusions of glass, probably of impact origin, with low silica, high alumina, and high iron content have also been encountered. A characteristic feature of goethite is the presence of Mn and a pronounced zonal structure manifesting itself in an increased Al content. Intergrowths and druses of authigenic magnetite are found in voids and cracks; magnetite however appears completely by iron (hydr)oxides. These observations generally agree with the paleogeographic data, and suggest that the crater and its vicinity experienced significant changes of the redox regime in the post-impact time.
UR - https://www.mendeley.com/catalogue/c46f655f-7ff4-3b23-8154-45b7f27334ad/
UR - http://www.scopus.com/inward/record.url?scp=85085861108&partnerID=8YFLogxK
U2 - 10.1088/1755-1315/459/3/032003
DO - 10.1088/1755-1315/459/3/032003
M3 - Conference contribution
VL - 459
T3 - IOP Conference Series: Earth and Environmental Science
BT - IOP Conf. Series: Earth and Environmental Science
PB - IOP Publishing Ltd.
ER -
ID: 52826367