中国侏罗纪岩石地层划分和对比  

LITHOSTRATIGRAPHIC SUBDIVISION AND CORRELATION OF THE JURASSIC IN CHINA

作　　者：黄迪颖 房亚男 李建国 李鑫[1,2] HUANG Di Ying;FANG Ya Nan;LI Jian Guo;LI Xin(State Key Laboratory of Palaeobiology and Stratigraphy,Nanjing Institute of Geology and Palaeontology,Chinese Academy of Sciences,Nanjing 210008;Center for Excellence in Life and Paleoenvironment,Chinese Academy of Sciences,Nanjing 210008)

机构地区：[1]中国科学院南京地质古生物研究所,现代古生物学和地层学国家重点实验室,江苏南京210008 [2]中国科学院生物演化与环境卓越中心,江苏南京210008

出　　处：《地层学杂志》2021年第3期364-374,共11页Journal of Stratigraphy

基　　金：国家第二次青藏科考项目(2019QZKK0706);中国科学院战略性先导科技专项(XDB18000000、XDB26000000);科技部重点研发计划(2016YFC0600406);国家自然科学基金(41688103、41925008)共同资助。

摘　　要：中国的侏罗系以陆相地层为主,仅在西藏地区和黑龙江东北部发育海相地层,华南早侏罗世也存在较广泛的海相及海陆交互相沉积。中国侏罗系不同陆相盆地间的岩性和化石存在较大差异,长期以来争议很大,特别是同位素年代学和生物地层学的结果存在严重分歧。本文根据地层特征,结合大地构造和古地理等因素,将中国侏罗系分为5个大区,其中陆相盆地的基本规律为:西部区大型盆地侏罗纪沉积发育相对完整,东北—华北区缺失早侏罗世沉积,华南区普遍缺失晚侏罗世沉积,东南区同时缺失早侏罗世和晚侏罗世沉积。由此,根据最新同位素年代学、生物地层学研究结果,结合构造运动规律,本文提出了中国侏罗纪岩石地层在不同地区(盆地)的划分与对比方案。The Jurassic System in China is dominated by terrestrial strata, with marine strata confined to Tibet and northeastern Heilongjiang Province. Extensive Early Jurassic marine and marine-terrestrial alternate strata are also developed in South China. There are signifcant differences in the non-marine Jurassic deposits in their lithological and palaeontological context among different basins in China, which have long been controversial,especially in terms of isotopic chronology and biostratigraphy. Based on stratigraphic characteristics, combined with tectonic and palaeogeographic evidence, this paper divides the Jurassic of China into five stratigraphic regions. The basic law of continental basins is that the Jurassic sequences are relatively complete in the large basins of the West China Region, Early Jurassic sediments are absent from the Northeast-North China Region,Late Jurassic sediments are generally absent from the South China Region, neither Early Jurassic nor Late Jurassic sediments are present in the Southeast China Region. Based on the latest geochronologic and biostratigraphic results, together with the laws of tectonic movement, a framework for subdivision and correlation of the Jurassic in different regions and basins in China is proposed.

关 键 词：岩石地层 地层分区 划分与对比 海相 陆相 侏罗系 燕山运动A幕 中国 

分 类 号：P534.52[天文地球—古生物学与地层学]