| 周明宝.金矿成矿模式中若干问题的讨论[J].地质找矿论丛,1988,(1):70-75 |
| 金矿成矿模式中若干问题的讨论 |
| DISCUSSION ON SOME PROBLEMS CONCERNING Au-METALLOGENIC MODELS |
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| DOI：10.6053/j.issn.1001-1412.1988.1. 007 |
| 中文关键词: 金矿源 能源 热液介质 成矿模式 |
| 英文关键词: |
| 基金项目: |
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| 中文摘要: |
| 金矿成矿一般模式为矿源、能源和热液流通构造系统的组合。 |
| 英文摘要: |
| This paper is a supplement and further discussion of the author’s article "Discussion on theGold Cenetic Model" Pubblished in 1983. According to the new discoveries of large gold deposits located around the Circum-Pacific Beltsince 70’s, it is possible to assume that certain gold source may be existed in a deep site beneath theareas of gold mineralization-concentration zones. This paper points out to revise the concept of shallow source bed is necessary, i. e. the absolutecontents of trace gold in source bed is not necessary to be very high, moreover, the existing state of gold in minerafls & rocks and the lithologic property of host rocks are of the same importance withthe abundance of Au in these rocks. The porblem of energy source and medium of old migration are discussed here, further more theauthor expounds the mechanical energy may transfer to heat & chemical energy during faulting movement, and become one of the main sources of energy during gold mineralization. Several examples are introduced to demonstrate that "hydrothermal solution"-the medium, always plays animportant role in gold mineralizatiion, however we have to notice the practical function ofhydrothermal activity in each case. Finally, the author proposes a general model of goldmine ralization, and suggests that the main idea of designing the particular genetic model of golddeposits in China, i. e. this model has to match peculiar features of the geologic background andpractical gold mime ralization in China. |
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