Geochemical Characteristics of Primary Halos in the No.1 Orebody of the Xiasai Ag-Pb-Zn Polymetallic Deposit, Sichuan
详细信息
- 责任者：Dai Li (School of Earth and Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Zhang Dehui
- 刊名：Geology and Prospecting
- 出版年：2013
- 卷期：49(2)
- 关键词：银矿 ; silver ores ; 铅锌矿床 ; lead-zinc deposit ; 原生晕 ; primary haloes ; 四川 ; Sichuan Province
- 页码：p.236-249
- 图表：illus., 7 tables, 21 refs.
- 分类号：1001
- issnNo：ISSN0495-5331
- isbnNo：CN11-2043/P
摘要
The Xiasai Ag-Pb-Zn polymetallic deposit,located in the middle of the Yidun island arc tectonic belt of "Sanjiang",southwestern China,is an epithermal deposit closely related with the Rongyicuo rock mass.This paper systematically studies the geochemical features of the primary halos from 9 horizontal drifts of the No.1 orebody with the methods of mathematical statistics,axial zoning sequence,geochemical parameters calculation and establishment of the erosion model.The results show that the major indicator elements of prospecting with primary halos in the No.1 orebody include Ag,Pb,Zn,Cu,Sb,Hg,Cd and Sn,and secondary indicator elements are Bi,W,B,As,Au and Mn.Axial zoning follows in a sequence of Hg-Pb-Bi-Sn-Cd-Zn-Cu-As-Ag-W-Au-Sb-Ba-V-Mo-Mn and it appears as anti-zoning phenomenon.The mineralization experienced several superposition processes,and axial geochemical parameters exhibited complicated changes and many turns,indicating its complexity.It is thus inferred that there are possible blind orebodies in the deep portion of the No.1 orebody.
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