Characteristics of rare earth elements and cerium anomalies in cherts from the Paleo-Tethys in Changning-Menglian belt in western Yunnan, China  

作　　者：丁林 钟大赉 

机构地区：[1]Laboratory of Lithosphere Tectonic Evolution Institute of Geology, Chinese Academy of Sciences, Beijing 100029, China

出　　处：《Science China Earth Sciences》1996年第1期35-45,共11页中国科学（地球科学英文版）

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

摘　　要：Based on research on rare earth elements (REEs) and cerium anomalies in cherts from the Paleo-Tethys, their depositional environments are shown and the evolution of the Paleo-Tethys is traced. The amount of terrigenous, biogenic and hydrothermal inputs are the important factors that affect the REEs composition of the cherts.Based on research on rare earth elements (REEs) and cerium anomalies in cherts from the Paleo-Tethys, their depositional environments are shown and the evolution of the Paleo-Tethys is traced. The amount of terrigenous, biogenic and hydrothermal inputs are the important factors that affect the REEs composition of the cherts.

关 键 词：PALEO-TETHYS rare earth elements CERIUM ANOMALY factor analysis. 

分 类 号：P59[天文地球—地球化学]