海洋地质前沿2017，Vol.33Issue(6)：9-15,7.DOI:10.16028/j.1009-2722.2017.06002
临清坳陷东部三叠系沉积岩地球化学特征及构造意义
GEOCHEMISTRY OF TRIASSIC DEPOSITS IN EASTERN LINQING DEPRESSION AND ITS TECTONIC SIGNIFICANCE
摘要
Abstract
The mineral composition of clastic sedimentary rocks is an important indicator to tectonic setting of the sediments.In this paper,we analyzed the major and trace elements of the Triassic clastic deposits sampled from the Eastern Linqing Depression.Results show that,the Triassic samples are mainly greywacke and arkose with low maturity.The parent rock of the clastic sedimentary rock is consistent with continental crust in general which mainly are sedimentary rocks and granite,and the Eastern Linqing Depression was a tectonic environment of active continental margin close to the continental island arc in Early-Middle Triassic Epoch.The dynamic mechanism can be connected to the subduction of the Qinling ocean crust beneath the North China plate in early stage and the collision between the Yangtze plate and North China plate later on.This study provides the geochemical evidence for determining the tectonic environment of the south side to the eastern North China in Triassic period.关键词
临清坳陷东部/三叠系/地球化学/构造背景Key words
Triassic/geochemistry/tectonic setting/Eastern Linqing Depression分类
天文与地球科学引用本文复制引用
王明健,孟祥君,李涤,陈晞,朱晓青..临清坳陷东部三叠系沉积岩地球化学特征及构造意义[J].海洋地质前沿,2017,33(6):9-15,7.基金项目
国家自然科学基金(41606079) （41606079）
山东省博士后创新项目专项资金(201201001) （201201001）
国土资源部海洋油气资源与环境地质重点实验室开放基金(MRE201223) （MRE201223）
中国地质调查局地质调查项目(GZH201400205) （GZH201400205）
