| 温森坡,庞永治,乔保龙.店房火山角砾岩体西段金矿地质特征与成因[J].地质找矿论丛,2010,25(3):212-216 |
| 店房火山角砾岩体西段金矿地质特征与成因 |
| GOLOGICAL CHARACTERISTICS AND GENESIS OF GLOD DEPOSIT IN THE WESTERN PART OF VOLCANIC BRECCIA AT DIANFANG |
| 投稿时间：2009-04-23 |
| DOI：10.6053/j.issn.1001-1412.2010.3. 006 |
| 中文关键词: 店房金矿 地质特征 矿床成因 火山角砾岩体西段 河南省 |
| 英文关键词:Dianfang gold deposit geological characteristics genesis west part of the volcanic breccia Henan preovince |
| 基金项目: |
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| 中文摘要: |
| 在近期的矿山接替资源找矿过程中,对店房金矿以西的角砾岩体西段勘查新圈定5条金矿体。金矿体的形态与产状严格受断裂构造控制,直接产于火山机构的环状、放射状构造和蚀变破碎带之中,矿石分为石英脉型和构造蚀变岩型,围岩蚀变以硅化和黄(褐)铁矿化为主,成矿作用分为2期4个阶段;稳定同位素和流体包裹体研究表明,成矿流体主要为幔源,并具低盐度和多源特点,以岩浆热液为主,成矿温度为中、低温,主成矿期为燕山晚期,店房角砾岩体西段金矿床属与火山构造有关的中、低温热液矿床。 |
| 英文摘要: |
| Prospecting resources to succeed in Dianfang gold deposit is focused in the western part of the volcanic breccia body and five new gold ore bodies are delineated.Morphology of the ore bodies is strictly controlled by fractures and they occur in ring and radiate fractures and the altered cataclastic rock zones.There are two types of ore,i.e.the quartz vein type gold ore and altered cataclastic rock type gold ore.Silicification and pyritization(limonitization) are the main wall rock alteration.The metallogenic process is divided into two periods and four stages.Researches on isotopes and fluid inclusions show that the ore materials are mainly derived from mantle and characterized by multi-sources and low salinity.The ore fluid is dominated by magmatic hydrothermal fluid and the ore is formed at medium and low temperatures and mainly in Late Yanshanian Period. |
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