| 梅友松.成矿规律若干问题研究[J].地质与勘探,2005,(6):3-14 |
| 成矿规律若干问题研究 |
| SOME QUESTIONS IN MINERALIZATION REGULARITY |
| 投稿时间：2005-07-15 修订日期：2005-08-20 |
| DOI： |
| 中文关键词: 成矿分区 边缘线型构造成矿 同位成矿 |
| 英文关键词: mineralization partition, tectonic mineralization of margin lineation type, homothetic mineralization |
| 基金项目: |
| 梅友松 |
| 北京矿产地质研究院,北京100012 |
| 摘要点击次数: 2158 |
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| 中文摘要: |
| 文章特为庆祝北京矿产地质研究院成立50周年而作.内容分3个部分:(1)有色金属矿床成矿分区.论述了重要有色金属(含贵金属)矿床共生组合特点及其产生的原因,包括大陆地壳基底岩层成分分区与后生金属矿床成矿分区的关系;在钾含量高低不同的岩石系列环境中金属矿床产出特点.(2)金属域边缘线性构造成矿相关问题概述.在成矿分区所形成的金属域内,重要有色金属矿床产出特点概括地说是,在空间上产于地质(构造)体的转化(过渡)部位,在时间上形成于成矿地质过程的转化时期,定位于有利的转化界面附近.在此基础上,论述了成矿(区)带产出特点和控制矿田、矿床和矿体产出的构造等.(3)同位成矿及其找矿意义.论述了幔源与壳源在地壳中形成的岩浆房作用下,特别是在上地壳下部产出的影响地域广、关系矿种多的岩浆房和含矿热卤水库的作用下,在陆壳基底成分的支配和影响下,保持相对稳定的成矿热活动中心,具有成矿与保存最佳条件的配置和协同作用,就可产生同位成矿作用,进而形成大型-超大型矿床. |
| 英文摘要: |
| This paper was written for the 50 years anniversary celebration of Beijing Institute of Geology for Mineral Resources. The first part discusses mineralization partition of non-ferrous metal deposits. Paragenesis and formation mechanism of important non-ferrous and precious metal deposits, including relations between composition partition of continental crustal basement strata and mineralization partition of epigenetic metal deposit and occurrence of metal deposit in rock series environment with different potassium content, are analyzed. The second part summarizes lineation tectonic mineralization at margin of metal domain. Important non-ferrous metal deposits in metal domain formed by mineralization partition are occurred in transformation region of geology or tectonic body in space, formed at transformation period of mineralizing geologic process in time, and located neighboring region of advantageous transformation boundary. Occurrence of mineralizing zonation and structures controlling ore-field, deposit and body are then discussed. The second part investigates homothetic mineralization and prospecting implication. Relative stable hydrothermal activity center, combined with the best conditions of mineralization and preservation, can produce homothetic mineralization and then form large-superlarge deposits. |
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