华南板块泥盆纪层序地层及海平面变化  

DEVONIAN SEQUENCE STRATIGRAPHY AND SEA-LEVEL CHANGES WITHIN THE SOUTH CHINA PLATE

作　　者：杜远生[1] 龚一鸣[1] 刘本培[1] 冯庆来[1] 吴诒[1] 

机构地区：[1]中国地质大学,广西地质科研所

出　　处：《岩相古地理》1996年第6期14-23,共10页

基　　金：国家基础性重大关键项目(SSLC);高等学校博士学科点专项科研基金

摘　　要：华南板块在泥盆纪时期属东亚古特提斯泛大洋中华夏古陆群的一部分，它和冈瓦那大陆与北方大陆群（北美、东欧、西伯利亚等）处于不同的构造背景下。华南泥盆系分布广泛、发育齐全，可以作为东亚泥盆系的典型地区。本文根据华南黔桂、龙门山及南秦岭泥盆系１０余条部面层序地层划分和对比，识别出２１个与二级海平面变化响应的层序和Ｔ—Ｒ旋回，并与Ｊｏｈｎｓｏｎ（１９８５，１９９２）和Ｒｏｓｓ（１９８８）以欧美大陆为代表的泥盆纪的Ｔ—Ｒ旋回进行了对比，并讨论二者之间的异同及其控制因素。The South China plate,lying between Gondwana and Boreal continental group (North America,East Europe,Siberia etc.),was a part of the Cathaysian continental group in the Palaeo-Tethys of East Asia during Devonian time.The Devonian strata are widely dis- trubuted and well developed in South China,and may act as one of the type areas of the Devonian strata in East Asia.In the light of the division and correlation of sequence stratigraphy of more than ten Devonian sections in Guizhou,Guangxi,Longmen Mountain in Sichuan and South Qinling Mountain area,twenty-one sequences and T-R cycles in re- sponse to the second-order sea-level changes are suggested,and comparable to the Devoni- an T-R cycles in the Euramerican continent by Johnson (1985 and 1992)and Ross (1988). The similarities and differences between them and controlling factors are herein discussed.

关 键 词：华南 泥盆纪 海平面变化 层序地层 华南板块 

分 类 号：P534.44[天文地球—古生物学与地层学] P731.23[天文地球—地质学]