中国奥陶纪岩石地层划分和对比  

LITHOSTRATIGRAPHIC SUBDIVISION AND CORRELATION OF THE ORDOVICIAN IN CHINA

作　　者：张元动[1,2] 詹仁斌 袁文伟[1] 唐鹏 李越[1] 王志浩[1] 周志毅[1] 方翔[1] 李文杰[1] 成俊峰[3] ZHANG Yuan Dong;ZHAN Ren Bin;YUAN Wen Wei;TANG Peng;LI Yue;WANG Zhi Hao;ZHOU Zhi Yi;FANG Xiang;LI Wen Jie;CHENG Jun Feng(State Key Laboratory of Palaeobiology and Stratigraphy,Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment,Chinese Academy of Sciences,Nanjing 210008;College of Earth and Planetary Sciences,University of Chinese Academy of Sciences,Beijing 100049;Experimental Center of SINOPEC Northwest Company,Urumqi 830011)

机构地区：[1]中国科学院南京地质古生物研究所和生物演化与环境卓越创新中心,现代古生物学和地层学国家重点实验室,江苏南京210008 [2]中国科学院大学地球与行星科学学院,北京100049 [3]中石化西北油田分公司勘探开发研究院,新疆乌鲁木齐830011

出　　处：《地层学杂志》2021年第3期250-270,共21页Journal of Stratigraphy

基　　金：国家自然科学基金(42030510、41972011);中国科学院战略性先导科技专项(B类)(XDB26000000);中国地质调查局地质调查项目(DD20190009);现代古生物学和地层学国家重点实验室(20201104、20192102)共同资助。

摘　　要：本文根据当前国际通用的奥陶系"三统七阶"划分标准,对中国华南、华北、塔里木、准噶尔、柴达木、西藏、滇缅马、印支等块体的奥陶纪岩石地层单元进行了系统性梳理和总结,在大量近期研究成果的基础上,厘定它们的岩性特征、地层时代、接触关系和划分对比,以统一的年代地层框架为标尺,建立了94个地层柱的岩石地层划分和对比关系。根据近二十年来中国关于奥陶纪的大地构造、沉积学、地层古生物学和生物古地理学研究成果,将中国奥陶系划分为12个地层区,其中对华南、华北和塔里木地层区进一步划分为若干个地层分区和地层小区。Under the framework of the international Ordovician standard chronostratigraphy,some 94 lithostratigraphic sequences from the principal terranes or blocks of China,such as South China,North China,Tarim,Junggar,Qaidam,Tibet,Sibumasu,Indochina etc.,are systematically summarized,clarified and revised.As results,a refined,comprehensive correlation chart is made to illustrate the main lithology,age,contact and correlation of all the relevant lithostratigraphic units.Based on the latest advances in tectonics,sedimentology,palaeontology,stratigraphy and palaeobiogeography of the Ordovician study in China,twelve stratigraphic regions are recognized,amongst which South China,North China and Tarim are further subdivided into several subregions respectively.

关 键 词：岩石地层 地层分区 划分与对比 奥陶系 中国 

分 类 号：P534.42[天文地球—古生物学与地层学]