沉积与特提斯地质2011，Vol.31Issue(4)：104-110,7.
滇东南中三叠统法郎组含锰岩系稀土元素和铀、钍元素的特征及意义
REE and trace elements U and Th from the manganese-bearing rock series in the Middle Triassic Falang Formation in southeastern Yunnan
摘要
Abstract
The REE compositions are explored by using ICP-MS method for 17 pieces of manganese ore samples and 2 pieces of manganese-bearing limestone samples from the manganese-bearing rock series in the Middle Triassic Falang Formation in southeastern Yunnan. The REE distribution patterns for all these samples display the patterns for the enrichment in LREE. The manganese ore samples are characterized by slight Ce ( 8Ce values ranging from 0.79 to 1. 29) and Eu ( 8Eu values ranging from 0. 84 to 1. 20) anomalies. The manganese-bearing limestone samples are characterized by highly negative Ce anomalies and slightly negative Eu anomalies. It is concluded that the manganese-bearing rock series in the Middle Triassic Falang Formation in southeastern Yunnan are commonly subjected to hydrothermal processes and resulted from polyphase processes.关键词
滇东南/法郎组/锰矿/稀土元素/铀/钍Key words
southeastern Yunnan/ Falang Formation/ manganese deposit/ REE/ U/ Th分类
天文与地球科学引用本文复制引用
杨伟,伊海生,杜秋定,夏国清,达雪娟..滇东南中三叠统法郎组含锰岩系稀土元素和铀、钍元素的特征及意义[J].沉积与特提斯地质,2011,31(4):104-110,7.基金项目
“十一五”国家科技支撑项目(编号:2006BAB01A12-5)资助 （编号:2006BAB01A12-5）
