西北地质2018,Vol.51Issue(1):44-53,10.
西昆仑苏巴什东部侏罗系杨叶组孢粉化石的发现及其沉积环境分析
Discoveryand Sedimentary Environment of Sporopollen Fossils at Jurassic Yangye Formation in East Subashi, West Kunlun
摘要
Abstract
In the east Subashi of West Qunlun,the Yangye Formation is occurred in the accretionary wedge of the South Qunlun belt,which located at the north side of the Kangxiwa-Muzitange tectonic complex.The study of this stratigraphic unit is important for understanding the Jurassic paleogeography and tectonic evolution in West Qunlun.Sporo-pollen study shows that this stratigraphic unit was deposited during the early stage of Middle Jurassic epoch and was formed in warm and humid environment.After carrying out the regional geological research,pollen study and geochemistry study,the results suggest that the Yangye Formation was deposited during the early stage of Mid-Jurassic epoch and was formed in a shallow lake and shore lake environment.关键词
苏巴什东/杨叶组/孢粉化石/中侏罗世/古气候/沉积环境Key words
East Subashi/Yangye Formation/sporo-pollen fossils/sedimentary environment/Middle Jurassic/paleoclimate/depositional environment分类
天文与地球科学引用本文复制引用
仵桐,王炬川,杨涛,陈宁,李琦,高云鹏,李武杰..西昆仑苏巴什东部侏罗系杨叶组孢粉化石的发现及其沉积环境分析[J].西北地质,2018,51(1):44-53,10.基金项目
中国地质调查局“新疆西昆仑1∶5万J44E021019、J44E021020、J44E022019、J44E022020、J44E023019五幅区域地质调查”项目(1212011220635) (1212011220635)