| 河北金厂峪金矿控矿构造特征与成矿物质来源 |
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| 引用本文： | 宋扬,王瑞江,胡建中,谭应佳,石成龙,王涛.河北金厂峪金矿控矿构造特征与成矿物质来源[J].地质学报,2011,85(1):78-87. |
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| 作者姓名： | 宋扬 王瑞江 胡建中 谭应佳 石成龙 王涛 |
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| 作者单位： | 1.中国地质大学地球科学与资源学院，北京，100083；2.中国地质科学院矿产资源研究所，北京，100037 |
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| 基金项目： | 全国危机矿山接替资源找矿专项典型矿床研究项目，中央公益性科研业务费专项资金项目 |
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| 摘 要： | 金厂峪金矿是我国华北板块北缘大型金矿床之一,矿床产在晚太古宙褶皱绿岩带中,矿石类型主要包括含金钠长石脉和含金石英脉两种.控矿构造研究表明,在两期区域性褶皱作用下,形成的金厂峪复背斜及与之相关的北北东向挤压片理化带是金厂峪金矿的主要控矿构造.在片理化和蚀变过程中围岩斜长角闪岩的Fe2O3、CaO、MgO等成分被明显带出,...
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| 关 键 词： | 华北板块 金厂峪金矿 控矿构造 物质来源 同位素 |
| 收稿时间： | 2010/11/21 0:00:00 |
| 修稿时间： | 2010/11/21 0:00:00 |
Ore-controlling structure characteristics and the Sources of Ore Forming Material in Jinchangyu gold deposit,Hebei province |
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| SONG Yang,WANG Ruijiang,HU Jianzhong,TAN Yingji,SHI Chenglong,WANG Tao.Ore-controlling structure characteristics and the Sources of Ore Forming Material in Jinchangyu gold deposit,Hebei province[J].Acta Geologica Sinica,2011,85(1):78-87. |
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| Authors: | SONG Yang WANG Ruijiang HU Jianzhong TAN Yingji SHI Chenglong WANG Tao |
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| Institution: | 1.School of Earth Sciences and Resources,China University of Geosciences,Beijing, 100083;2.Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing, 100037 |
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| Abstract: | JinChangyu Gold Mine is one of largest gold deposits at the northern margin of North China Plate and occurs in the late Archean greenstone fold belt. There are two ore types, namely, gold-bearing albite vein type and gold-bearing quartz vein type. Studies show that the formation of Jinchangyu anticlinorium and related NNE trending extruded schistosity zone in the two-stage regional folding is the main ore-controlling structure of JinChangyu Gold Mine. In the course of schistosity and alteration, Fe2O3, CaO and MgO were clearly brought out from amphibolite in surrounding rocks, albite vein and quartz vein, both of whose width, gold grade, occurrence and material source are basically the same, penetrated along the surface of extruded schistosity. They are the products of the same mineralization in different mineralization stages. Characteristics of rare earth elements, sulfur and lead isotopes show that the the mineralization was related to deep magma activation and the strata were remelted in the magma to a part of mineralized materials. Therefore, this paper argues that Jinchangyu Gold Mine is a magmatic and thermal-fluid-type deposit whose mineralized materials were collectively provided by remelting of the mantle, lower crust and part of surrounding rocks, in other words, Archaeozoic greenstone belt. |
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| Keywords: | North China Plate JinChangyu Gold Mine Ore-controlling structure Sources of Ore Forming isotopes |
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