| 许锋,李卫波,宋公社,王明志,康琴琴,曹阳,朱伟鹏.陕西石泉—旬阳地区金矿床控矿因素与成矿模式[J].矿产勘查,2018,9(1):70-78 |
| 陕西石泉—旬阳地区金矿床控矿因素与成矿模式 |
| Ore-Controlling Factors and Metallogenic Model of Gold Deposit in Shiquan-Xunyang area, Shaanxi |
| 投稿时间：2017-04-03 |
| DOI： |
| 中文关键词: 控矿因素 成矿时代 成矿模式 石泉—旬阳地区 陕西 |
| 英文关键词: ore-controlling factors, mineralization epoch, metallogenic model, Shiquan-Xunyang area, Shanxi |
| 基金项目:陕西省公益性地质专项(编号:公益【2014】03-03)资助。 |
|
| 摘要点击次数: 2390 |
| 全文下载次数: 1256 |
| 中文摘要: |
| 陕西石泉—旬阳地区是重要的金矿聚集带。文章以长沟和黄龙矿区为例,阐述了研究区矿床地质特征,重点分析了矿区构造、赋矿围岩等控矿因素,探讨了云煌岩脉与成矿的关系,认为韧性剪切带是区内矿体的重要控矿条件。研究区金矿床含金石英脉中石英流体包裹体均一温度集中于160~280℃之间,表明为低-中温成矿；富含金的黄铁矿Rb-Sr等时线年龄为(208±0.88)Ma,表明成矿时代为印支晚-燕山早期,该期的推覆剪切构造控制本区金矿形成。在上述综合研究的基础上,初步建立该区金矿床的成矿模式。 |
| 英文摘要: |
| Shiquan-Xunyang area of Shanxi Province is an important gold accumulation zone. With the example of Changgou and Huanglong gold deposits, this paper expounds the geological characteristics of gold deposits in this area, emphatically analyzes the structure, host rock and other ore-controlling factors, and discusses the relationship between minette and mineralization. It is considered that the ductile shear zone is an important ore-controlling factor of the area. The homogeneous temperature of quartz inclusions in gold-bearing quartz veins in the study area is concentrated between 160 and 280 ℃, which reflects the mesothermal-epithermal mineralization. Rb-Sr isochron age of gold-rich pyrite is 208±0.88 Ma, indicating the mineralization epoch belongs to the Late Indosinian-Early Yanshanian. The formation of gold deposits in the area is controlled by the thrust shear structure of this period. On the basis of the above comprehensive research, this paper establishes the metallogenic model for gold deposit in the area. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|