| 赵旭东,王军,黄少华.内蒙古乌拉特中旗巴润花地区金成矿条件分析[J].矿产勘查,2022,13(1):36-44 |
| 内蒙古乌拉特中旗巴润花地区金成矿条件分析 |
| Analysis of gold metallogenic conditions and prospecting direction in Barunhua area Urad Middle banner,Inner Mongolia |
| 投稿时间：2020-11-10 |
| DOI：10.20008/j.kckc.202201005 |
| 中文关键词: 巴润花地区 金矿 成矿条件 找矿标志 找矿方向 |
| 英文关键词: Barunhua area gold deposit metallogenic conditions prospecting signs prospecting direction |
| 基金项目:本文受内蒙古铭瑞德贸易有限责任公司“乌拉特中旗巴润花金矿勘查”项目资助。 |
|
| 摘要点击次数: 1273 |
| 全文下载次数: 742 |
| 中文摘要: |
| 内蒙古乌拉特中旗巴润花地区位于查干此老—巴音杭盖金成矿带,该金成矿带已发现多处金矿床。本文以地层、构造、岩浆活动与地质事件为对象,对该区金矿形成的地质背景及构造环境进行了研究。重点对巴润花地区的地层含金性、岩浆活动、构造及围岩蚀变等金成矿条件进行分析,并结合本区金矿化的特征,认为下元古界宝音图群可能为本区金矿的初始矿源层,巴润花地区出露的早二叠世似斑状花岗岩、中二叠世闪长岩为金成矿提供了热源和金物质来源,金成矿时间稍晚于中二叠世；明确了北西向构造为本区金矿的容矿和控矿构造；总结了金矿体有利的围岩蚀变,红色钾化为成矿前期的高温蚀变,使金元素初步富集；绿色黄铁绢英岩化为中、低温蚀变,使金元素进一步富集成矿。综上所述,认为本区金成矿条件优越,具备良好的找矿前景。 |
| 英文摘要: |
| The Barunhua area is located in Chagancilao-Bayinhangai gold metallogenic belt,where many gold deposits have been discovered.By analyzing the regional geological background,this paper clarifies the geological background and tectonic environment of the gold deposits in this area.The author focuses on the analysis of the gold-bearing conditions,magmatic activity,structure and hydrothermal alteration of surrounding rocks in the Barunhua area,and then combines the characteristics of gold mineralization in this area.It is believed that Baoyintu Group may be the initial source layer of gold deposits in this area.The early Permian porphyry-like granite and the Middle Permian diorite exposed in the Barunhua area provided heat and gold sources for gold mineralization,and the gold mineralization time coincided with the magmatic diagenesis time.It is clear that the northwestward structure developed in the Permian rock body is the ore-holding and ore-controlling structure of the gold deposit in this area.The favorable surrounding rock alteration of the gold ore body is summarized.The red potassium is converted into high temperature alteration in the early stage of mineralization,which initially enriches the gold element.The green yellow iron sericite is transformed into medium and low temperature alteration,which further enriches gold elements into ore.It is believed that the gold metallogenic conditions in this area are superior and have good prospecting prospects. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|