| 母瑞身.论述金的成矿背景——含金地质建造[J].地质找矿论丛,1987,(4):62-69 |
| 论述金的成矿背景——含金地质建造 |
| GOLD-METALLOGENIC BACKGROUND-GOLD-BEARING GEOLOGICAI FORMATION |
| |
| DOI：10.6053/j.issn.1001-1412.1987.4. 006 |
| 中文关键词: 成矿背景 原生含金地质建造 转生含金地质建造 |
| 英文关键词: |
| 基金项目: |
|
| 摘要点击次数: 1206 |
| 全文下载次数: 1271 |
| 中文摘要: |
| 本文以含金地质建造的概念表述成矿前矿质的分布,进而阐述金的成矿背景。原生含金地质建造系指各地质时期具金高丰度值的超镁铁质岩石,主要来自上地幔。转生含金地质建造是地质环境发生重大改变之后,由原生含金地质建造转化所形成。 |
| 英文摘要: |
| This paper uses the term of the gold-bearing formation to express the distribution of ore material pre-minzaligation based on which demonstration of the gold-metallogenic setting is based.The gold-bearing formation can be divided into primary and derivative formation. (A) The primary formation is the ultramafic and mafic rocks coming from the upper mantle with high gold abundance, ineluding a. Archean, Proterozoic greenstone series, the former is distributed at the middle-lower part of the greenstone belt on the platform, the latter is at the basement of some geosynclins, b. Archean, Proterozoic Fe-Si rock series which is formed by sedimentation though it is closely related to the primary gold-bearing formation according to the time-space contolling characters; c. Palaeozoic greenstone series, namely the ophiolitic suite; d. some ultrabasic and basic rock bodies. (B) The derivative gold-bearing formation which is derived from the primary goldbearing formation due to the change of the geological environment, 1, The external agency derivative gold-bearing formation contain such as gold-uranium-beraing conglomeratic formation, graywacke-black shale gold-bearing formation and corbonaceous arenite-rgillite-carbonate rock gold-bearing formation. 2, Internal agency derivative gold-bearing formation is that of some metasomatic and anatexis intermediate acid granite. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
