Content of trace element (ppm) and ratio of representative elements of dark shale samples from Member1 of Upper Carboniferous Keluke Formation in Huaitoutela area, eastern NMQB.

Content of trace element (ppm) and ratio of representative elements of dark shale samples from Member1 of Upper Carboniferous Keluke Formation in Huaitoutela area, eastern NMQB.

<p>Content of trace element (ppm) and ratio of representative elements of dark shale samples from Member1 of Upper Carboniferous Keluke Formation in Huaitoutela area, eastern NMQB.</p>

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Bibliographic Details
Main Author:	Tiangong Lai (21728451) (author)
Other Authors:	Fei Xia (256985) (author), Guangnan Huang (21728454) (author), Wenjin Liu (4016060) (author), Da Sun (1721164) (author), Fanming Meng (8376048) (author), Weilong Wang (1293939) (author)
Published:	2025
Subjects:	Biochemistry Molecular Biology Biotechnology Evolutionary Biology Ecology Developmental Biology Inorganic Chemistry Infectious Diseases Environmental Sciences not elsewhere classified Chemical Sciences not elsewhere classified western delingha depression terrigenous clastic input oxic &# 8211 brackish &# 8211 rapidly cooling paleoclimate div >< p china </ p total organic carbon terrestrial transitional shale salt water environment ni )&# 215 dysoxic preservation condition high primary productivity slightly higher ratios al ratios show high salinity water section ii ), primary productivity dysoxic environment relatively high water body surface water redox condition humid paleoclimate section ii moderate ratios toc ), vertical variation still unclear significantly correlated rich shale qaidam basin organic matter northern margin newly discovered mainly dominated mainly controlled keluke formation hydrothermal activity huaitoutala area element geochemistry dark shale clay minerals chemical index also higher 92 %). 79 %)
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