REE characteristics and Ore-Forming Indicator of the Shijia Gold Deposit in Northwest of Guangxi
详细信息
- 责任者：Liu Yuandong (College of Earth Sciences ; Guilin University of Technology ; Guilin 541004 ; China) ; Pang Baocheng
- 刊名：Mineral Resources and Geology
- 出版年：2011
- 卷期：25(4)
- 关键词：金矿 ; gold ores ; 稀土元素 ; rare earths ; 广西 ; Guangxi Province
- 页码：p.317-323
- 图表：illus., 2 tables, 19 refs.
- 分类号：1001
- issnNo：ISSN1001-5663
- isbnNo：CN45-1174/TD
摘要
The Shijia gold deposit is located in Longchuan dome.There is a large number of exposed diabase.Diabase occurs in circle-type or irregularly along the anticline.Gold ore mainly occur in fracture zone inside the diabase,or on contact zone between diabase and C1y stratum.The analysis on REE characteristics of quartz vein formed in metallogenic period、altered diabase ore、silicolites from C1y stratum and fresh diabase,shows that the ore-forming fluid of this deposit was come from deep part,and formed after the diabase.The fluid are related with acidic magma activity in Yanshanian period.The hot-water sedimentary rocks were the main source rocks.The ore-forming fliud made the metallogenic materials remobilization and transportation in the source rocks,and deposits in the location which have better physical and chemical conditions.In the process of mineralization,diabase supplied ore-fluid leading and ore-host fracture zone,also supplied a little material sources.