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鄂东北大坡顶金矿床地质特征及成因分析
- 徐学金|邹院兵*|蒋之飞|孟志鹏|陈松|方洁
- 作者单位：
- 湖北省地质局第六地质大队|湖北省地质局第六地质大队|湖北省地质局第六地质大队|湖北省地质局第六地质大队|湖北省地质局第六地质大队|湖北省地质局第六地质大队
基金项目：
- 湖北省地质局项目（KJ2019-9）
详细信息：
- 作者简介：
- 徐学金（1968—），男，湖北天门人，高级工程师，从事地质矿产勘查工作；湖北省孝感市建设路163号，湖北省地质局第六地质大队，432000；E-mail:3238736938@qq.com
- 通讯作者：
- E-mail：630456035@qq.com，17362663527
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Geological characteristics and genesis analysis of Dapoding Gold Deposit in northeast Hubei
- English Author：
- No.6 Geological Team of Hubei Geological Bureau|No.6 Geological Team of Hubei Geological Bureau|No.6 Geological Team of Hubei Geological Bureau|No.6 Geological Team of Hubei Geological Bureau|No.6 Geological Team of Hubei Geological Bureau|No.6 Geological Team of Hubei Geological Bureau
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
大坡顶金矿床位于西大别大磊山穹窿中部，矿体呈脉状、似板脉状赋存于断裂构造中，走向和倾向上均具舒缓波状特征，厚度变化属于稳定型，金品位变化属于均匀型；矿石类型以石英脉型为主，蚀变岩型次之，石英脉型矿石金品位一般高于蚀变岩型矿石，金矿化与多金属硫化物呈正相关；围岩蚀变具有分带性，黄铁矿化、硅化、钾化与金矿化关系密切。大坡顶金矿床成矿物质与成矿流体主要来源于燕山期岩浆热液，金成矿作用与燕山期花岗质岩浆作用密切相关，矿床成因类型属于中温岩浆热液型。
关键词:
大坡顶金矿床；大磊山穹窿；成矿时代；矿床成因；鄂东北
Abstract:
Dapoding Gold Deposit is located in the middle of Daleishan dome in west Dabie.The ore bodies occur in veins and plate-like veins in fault structure,characterized by gentle waves in striking and inclination,with stable thickness and even gold grade variation; the ore type is mainly quartz vein followed by altered rock.The gold grade of the former is usually higher and the gold mineralization is positively related with polymetallic sulfide; the wall rock alteration is characterized with zonation.Pyritization,silicification,potassium alteration and gold mineralization are closely related.The ore-forming materials and fluids of Dapoding Gold Deposit mainly originate from Yanshannian magmatic hydrothermal fluids,the gold mineralization is closely related to Yanshannian granite magmatism and the deposit genesis is epithermal magmatic hydrothermal gold deposit.
Keywords:
Dapoding Gold Deposit;Daleishan dome;metallogenic epoch;deposit genesis;northeast Hubei
