西藏南部和中部地区的奥陶系ORDOVICIAN STRATIGRAPHY OF THE SOUTHERN AND CENTRAL XIZANG(TIBET), CHINA
方翔,李文杰,于深洋,甄勇毅,张元动
摘要(Abstract):
本文系统梳理了前人对西藏南部和中部地区奥陶纪地层的建组和划分对比工作,提出这些地区最新的地层划分和对比方案。对西藏南部聂拉木地区的甲村群、中部申扎地区的柯耳多群和察隅地区的桑曲组的定义进行厘定;介绍3个新建的岩石地层单元,分别是甲村群中的阿当组、柯耳多群中的知洼作古组及桑曲组中的白云质灰岩段。结合近年来发表的研究成果,将这些地区的岩石地层和生物地层与华南、华北及澳大利亚等地进行精确对比,为进一步开展西藏地区奥陶纪岩相和古地理研究提供依据。
关键词(KeyWords): 岩石地层学;生物地层学;喜马拉雅地体;拉萨地体;聂拉木地区;申扎地区
基金项目(Foundation): 第二次青藏高原科学考察研究(2019QZKK0706);; 中国科学院B类先导专项(XDB26000000);; 国家自然科学基金(42002009、42030510);; 现代古生物学和地层学国家重点实验室(20201104、20192102);; 地质调查项目(DD20190009)共同资助
作者(Author): 方翔,李文杰,于深洋,甄勇毅,张元动
DOI: 10.19839/j.cnki.dcxzz.2020.0039
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