Emplacement age and PGE geochemistry of lamprophyres in the Laowangzhai gold deposit,Yunnan,SW China

被引：4

作者：

王江海

漆亮

尹安

解广轰

机构：

来源：

Science China Earth Sciences | 2001年 / S1期

基金：

中国国家自然科学基金;

关键词：

: thermochronology; PGE geochemistry; lamprophyre Laowangzhai gold deposit; Yunnan;

D O I：

暂无

中图分类号：

P618.51 [金]; P59 [地球化学];

学科分类号：

0709 ; 070902 ; 081803 ;

摘要：

Widely-distributed lamprophyres in the Laowangzhai gold deposit were associated closely with gold ores. PhlogopiteAr/Ar dating suggests that the emplacement age of lampro-phyric magma ranges from (30.8±0.4) to (34.3±0.2) Ma, and gold mineralization took place at (26.4±0.2) Ma. PGE geochemical tracing indicates that gold in the gold deposit did not come from the primitive lamprophyric magma. The tempo-spatial paragenesis between lamprophyres and mesothermal gold deposits along the Jinsha-Red River belt may be attributed to the fact that they formed in the same tectonic setting.

引用

页码：146 / 154

页数：9

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