- 责任者：Wang Yejian (Department of Earth Sciences ; Zhejiang University ; Hangzhou 310027 ; China) ; Han Xiqiu
- 刊名：Acta Mineralogica Sinica
- 出版年：2011
- 卷期：31(2)
- 关键词：黄铁矿 ; pyrite ; 成矿作用 ; metallogenesis ; 印度洋 ; Indian Ocean
- 页码：p.173-179
- 图表：4 illus., 2 tables, 33 refs.
- 分类号：0700
- 出版序号：797
- issnNo：ISSN1000-4734
- isbnNo：CN52-1045/P
Based on the detailed study of mineralogy and ore microscopy, in this paper the authors focused on the typomorphic characteristics and their evolution of pyrite in the massive sulfide to understand the seafloor hydrothermal mineralization. As a result, three types of pyrite were identified from the authors’ sulfide samples: 1) type-Ⅰ occurs as euhedral cubic crystals and its average S/Fe atomic ratio is close to 2.00.This type is characterized by high content of Cu, and low contents of Zn, As, Ni, Pb, and Ag. Its average Cu/Zn ratio is close to 4.26; 2) type-Ⅱ occurs as subhedral cubic crystals, and its average S/Fe atomic ratio is 2.03.This type is enriched in trace elements Zn and Co, but depleted in Cu, with a low average Cu/Zn ratio (0.04); and 3) type-Ⅲ occurs as framboids or colloform with a high average S/Fe atomic ratio (2.04).