海相油气地质Issue(2)：29-36,8.DOI:10.3969/j.issn.1672-9854.2015.02.005
微量元素在华南武陵统沉积环境和物源分析中的应用
Application of Trace Elements in Analysis of Sedimentary Environments and Provenance of Wulingian Series, South China
摘要
Abstract
Cambrian Wulingian Series is distributed widely in South China, which shows southeastward deepening marine sedimentary environments that are carbonate platform, carbonate platform edge, upper slope, lower slope and basin in sequence in NE-SW zonal distribution. Rock samples are selected from western Hubei, central Hunan, and southern Hunan-southern Jiangxi areas. The geochemical characteristics of trace elements and REE in samples indicates that the whole South China was in an oxygen-poor to anaerobic marine environ ment but an oxidic environment locally in western Hubei during Wulingian Epoch. Water was perhaps shallower in depth in southern Hunan-southern Jiangxi area than that in the central Hunan area, which means possible existence of an ancient land in the southeast of South China. It is implied that the sediment provenance was derived sta bly from the upper crust in the northwest and the provenance area probably is under the tectonic setting of continental island arc or the active continental margin.关键词
寒武纪/武陵世/微量元素/沉积环境/物源/华南Key words
Cambrian/Wulingian Series/Trace element/Sedimentary environment/Provenance/South China分类
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裴羽,何幼斌,曾艳涛,文沾,王宁..微量元素在华南武陵统沉积环境和物源分析中的应用[J].海相油气地质,2015,(2):29-36,8.基金项目
本文受中国地质科学院项目"主要地质单元区域地质调查与片区总结"(编号1212011120115)资助 （编号1212011120115）
