Characteristics of Trace Elements and S-Pb Isotopes in Sphalerites from Lead-Zinc Polymetallic Deposits in Fulongchang Area, Lanping Basin, Western Yunnan Province, and Their Implications
详细信息
- 责任者：Wang Xiaohu (Institute of Geology ; CAGS ; Beijing 100037 ; China) ; Song Yucai
- 刊名：Acta Petrologica et Mineralogica
- 出版年：2011
- 卷期：30(1)
- 关键词：铅锌矿床 ; lead-zinc deposit ; 多金属矿 ; polymetallic ores ; 闪锌矿 ; sphalerite ; 云南 ; Yunnan Province
- 页码：p.45-59
- 图表：9 illus., 6 tables, 38 refs.
- 分类号：1001
- issnNo：ISSN1000-6524
- isbnNo：CN11-1966/P
摘要
There are many lead-zinc polymetallic deposits related to continental collision in Lanping Basin, western Yunnan Province. These deposits were formed in a continental collision environment, developed in a strong deformation sedimentary basin, controlled by thrust structure,had no obvious affinity to igneous activities and belong genetically to epigenetic mineralization. On the basis of geological field observations, the authors selected sphalerite which exist in all these deposits as the object to study its trace elements and S-Pb isotopic composition so as to make a comparative analysis. Ore structures mainly include brecciated, veinlike, massive, disseminated, spotted and banded structures. The mineral textures are mainly euhedral granular, hypidiomorphic granular, xenomorphic granular and saccharoidal textures. Therefore, the lead-zinc polymetallic deposits in Fulongchang area must have been formed at the same ore-forming fluid activity in different spatial locations, being of the same origin.
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