地球科学进展 ›› 1994, Vol. 9 ›› Issue (4): 15 -22. doi: 10.11867/j.issn.1001-8166.1994.04.0015

干旱气候变化与可持续发展 上一篇    下一篇

成矿过程中由流体混合而导致金属沉淀的研究
华仁民   
  1. 南京大学地球科学系  210008
  • 收稿日期:1993-10-06 出版日期:1994-07-01
  • 通讯作者: 华仁民

STUDIES ON METAL DEPOSITION BY FLUID MIXING DURING ORE-FORMING PROCESSES

Hua Renmin   

  1. Department of Earth Sciences, Nanjing University, Nanjing 210008
  • Received:1993-10-06 Online:1994-07-01 Published:1994-07-01

对成矿流体的研究已成为当前矿床学和地球化学领域重要的前沿课题,其主要进展之一就是确认由不同性质流体的混合导致金属沉淀是矿石形成的重要方式。从流体混合过程的现代自然现象研究出发,以近年来国内外最近研究成果为基础,以岩浆水与大气降水的混合为重点,综述了成矿过程中几种主要的导致金属沉淀的流体混合作用,并对其主要机理——冷却、稀释、酸碱度改变和氧化还原反应——进行了初步讨论。

The study of ore-forming fluid is one of the major and frontier subjects in the field of mineral deposits and geochemistry. Among which, the mixing of different kinds of fluid is an important way to cause the deposition of ore metal. Based on the latest research fruits from home and abroad, this paper synthetically introduces the recent progress related to this topic, which includes the present flocculation of metals during the mixing of river water and sea water, as well as several main processes of fluid mixing during different kinds of ore formation, especially the mixing of magmatic water and meteoic water. The principal mechanisms of metal deposition from fluid mixing i. e. cooling, dilution, pH change, and redox reaction, have also been discussed in this paper.

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