Sub-Volcanic Hydrothermal Mineralization of the Wulaga Gold Deposit, Heilongjiang, China: Evidences from Melt and Fluid Inclusions
详细信息
- 责任者：Xu Jiuhua (Department of Resource Engineering ; University of Science and Technology ; Beijing 100083 ; China) ; Wei Hao
- 刊名：Acta Petrologica Sinica
- 出版年：2012
- 卷期：28(4)
- 关键词：金矿 ; gold ores ; 流体包裹体 ; fluid inclusions ; 火山岩 ; volcanic rocks ; 黑龙江省 ; Heilongjiang Province
- 页码：p.1305-1316
- 图表：illus., 2 tables, 45 refs.
- 分类号：1001
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
The Wulaga gold deposit, located in the northeastern edge of the joint of Paleo-Asiatic and Pacific tectonic domains, is one of the most important gold deposits in China. There are three types of fluid inclusions in quartz phenocryst of plagioclase granite-porphyry,that is, melt inclusions, primary L-V and L-V-S inclusions, as well as secondary L-V inclusions. Melt and fluid inclusion study show that gold mineralization has a close relationship with plagioclase granite-porphyry, and it is possible for silicate magma to produce salt-aqueous solution through immiscibility in magmatic differentiation. The Wulaga gold deposit should belong to epithermal gold deposit related to Cretaceous plagioclase granite-porphyry.