收稿日期: 1997-01-18
修回日期: 1997-03-31
网络出版日期: 1997-12-01
基金资助
国家自然科学基金重点项目“典型成矿区带成矿作用动力学及其时空结构”(项目编号:49633120)、国家自然科学基金“银山多金属矿床成矿流体地球化学研究及深部矿化推断”(项目编号:49773196)和中国博士后科学基金A类及中国科学院矿床地球化学开放研究实验室基金联合资助。
SOME NEW ADVANCES IN ORE-FORMING FLUID GEOCHEMISTRY ON BOILING AND MIXING OF FLUIDS DURING THE PROCESSES OF HYDROTHERMAL DEPOSITS
Received date: 1997-01-18
Revised date: 1997-03-31
Online published: 1997-12-01
张德会 . 流体的沸腾和混合在热液成矿中的意义[J]. 地球科学进展, 1997 , 12(6) : 546 -552 . DOI: 10.11867/j.issn.1001-8166.1997.06.0546
The ore forming fluid geochemistry is an important branch of fluid geology. In recent years, among which the studies on precipitation mechanisms of metal elements has been paid attention to. Emphasis are placed on boiling and mixing of fluid controls on hydrothermal ore deposits.In this paper, some new advances in the boiling and mixing of fluids have been reviewed. The cooling resulted from temperature drop is not most effiective in precipitation some metal elements. Boiling of hydrothermal solution is perhaps the most effective ore depositional mechanism in many boiling hydrothermal systems, epithermal systems, and porphyry copper molybdenum deposits.With the result that mineralization is characterized by high grade, large intensity, and well developed vertical ore zoning. Its small influence range and short lived time restrict its role played in ore deposition. Mixing of hydrothermal solutions may be responsible for many hydrothermal deposits formation. Its larger influence range and long lived time is perhaps one of very important mechanisms for many large and superlarge deposits.
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