REE and Trace Elements U and Th from the Manganese-Bearing Rock Series in the Middle Triassic Falang Formation in the oft-com:office:smarttags" />Southeastern Yunnan Province
详细信息
- 责任者：Yang Wei (Institute of Sedimentary Geology ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Yi Haisheng
- 刊名：Sedimentary Geology and Tethyan Geology
- 出版年：2011
- 卷期：31(4)
- 关键词：锰矿 ; manganese ores ; 成矿元素 ; ore-forming elements ; 云南 ; Yunnan Province
- 页码：p.104-110
- 图表：3 illus., 2 tables, 17 refs.
- 分类号：1001
- 出版序号：1781
- issnNo：ISSN1009-3850
- isbnNo：CN51-1593/P
摘要
The REE compositions are explored by using ICP-MS method for samples from the manganese-bearing rock series in the Middle Triassic Falang Formation in the southeastern Yunnan Province. The manganese ore samples are characterized by slight Ce and Eu 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 the southeastern Yunnan Province are commonly subjected to hydrothermal processes and resulted from polyphase processes.