STUDY OF CHEMICAL SPECIES OF ANOMALOUS IRIDIUM IN CRETACEOUS-TERTIARY (K-T) BOUNDARY CLAY LAYER  

作　　者：柴之芳 孔屏 毛雪瑛 马建国 马淑兰 

机构地区：[1]Institute of High Energy Physics, Academia Sinica, Beijing 100080, PRC

出　　处：《Chinese Science Bulletin》1991年第8期666-669,共4页

基　　金：Project supported by the National Natural Science Foundation of China.

摘　　要：At present, the study of Cretaceous-Tertiary (K-T) boundary event is focused on its formation mechanism. Two main models to interpret the K-T event are extraterrestrial impact and volcanic eruption. Unfortunately, until now none of the experimental results, even iridium anomaly and shock-metamorphic quartz, give exclusive evidence. They support

关 键 词：IRIDIUM SPECIES K-T boundary. 

分 类 号：N[自然科学总论]