Existing forms of REE in gold-bearing pyrite of the Jinshan gold deposit, Jiangxi Province, China

被引：27

作者：

Mao Guangzhou ^{[1
,2
]}

Hua Renmin ^{[1
]}

Gao Jianfeng ^{[1
,3
]}

Li Weiqiang ^{[1
]}

Zhao Kuidong ^{[1
]}

Long Guangming ^{[1
]}

Lu Huijuan ^{[1
]}

机构：

[1] Nanjing Univ, Dept Earth Sci, State Key Lab Mineral Deposit Res, Nanjing 210093, Peoples R China

[2] NW Univ Xian, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Peoples R China

[3] Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2009年 / 27卷 / 06期

基金：

中国国家自然科学基金;

关键词：

REE; existing form; fluid inclusion; silicate phase; pyrite; Jinshan gold deposit; MID-ATLANTIC RIDGE; EARTH-ELEMENT PATTERNS; HYDROTHERMAL FLUIDS; QUARTZ; GEOCHEMISTRY; TRACE;

D O I：

10.1016/S1002-0721(08)60392-0

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Rare earth element (REE) is widely used in various fields of geology. Study of the existing forms of REE in geological objects is a necessity for us to solve geological problems related with REE. This paper tried to make it clear the existing forms of REE in gold-bearing pyrite in Jinshan gold deposit by stepwise dissolution test with ICP-MS analysis. Results showed that content of REE in fluid-inclusions of gold-bearing pyrite was very low, which only took about 0.07%-0.70% of the Sigma REE, and that of pyrite phase took about 4.87%-17.00%, whereas higher REE contents of studied pyrites were mainly from Zr-rich silicate micro-mineral phase wrapped in sulfides, i.e., 82.30%-94.99%, which basically controlled the REE contents of pyrite. The REE contents in silicate phase accounted for part of FREE of the original liquids from which pyrite crystallized and was separated out. Therefore, the REE composition in pyrite mineral can be considered as the reflection of the composition of pyrite-forming fluid. It is thus possible to trace the sources and features of ore-forming fluid by studying the characteristics of REE in pyrite.

引用

页码：1079 / 1087

页数：9

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