华北地台南缘中侏罗世气候变热的古植物学证据  

PALEOBOTANIC EVIDENCES ABOUT CLIMATE GETTING HOT FROM MIDDLE JURASSIC IN SOUTHERN BORDER OF NORTH CHINA PLATFORM

作　　者：曾勇[1] 范炳恒[1] 沈树忠 

机构地区：[1]中国矿业大学资环学院

出　　处：《煤田地质与勘探》1998年第5期1-3,共3页Coal Geology & Exploration

基　　金：煤炭科学基金

摘　　要：根据对豫西地区义马组植物群三个植物组合的系统研究，以古植物组合的动态变化及古植物叶相特征为证据，论证了华北地台南缘中—晚侏罗世时期气候变热是从巴柔—巴通早期开始的，明显早于南欧、中亚及西北利亚地区。By systematically studying three assemblages of the Yima Formation flora of Western Henan Provinec situated in southern border of North China Platform,and taking the dynamic changes of fossil plant assemblages and the foliar physiognomy of fossil plants as the evidences,authors conclude that the climate in the research area began to get hot from the Bajocian to the Early Bathonian during the Middle Late Jurassic,which is obviously earlier than that South Europe,Middle Asia and Siberia regions did.

关 键 词：古气候 古植物学 华北地台 中侏罗世 气候变热 

分 类 号：P532[天文地球—古生物学与地层学] Q914.652[天文地球—地质学]