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| 狗头金成因新认识 | |
| 引用本文： | 李志明,张长江,等.狗头金成因新认识[J].地质与勘探,2002,38(2):15-17. |
| 作者姓名： | 李志明 张长江 |
| 作者单位： | 1. 中国科学院矿床地球化学开放研究实验室,贵阳,550002;石油地球物理勘探局第五地质调查处研究所,固城,072656 2. 中国科学院矿床地球化学开放研究实验室,贵阳,550002 3. 石油地球物理勘探局第五地质调查处研究所,固城,072656 |
| 摘 要： | 依据金矿体中存在大块金金狗大头金与原生金矿体关系密切和表生条件下金的增生程度十分有限以及表生成因说无法解释的一系列疑点为基础，对狗头金的成因进行了探讨，指出存在于表生环境中的狗头金是原生块金在表生条件下经改造并发生有限增生的结果，狗头金发育地区应存在或曾存在原生金矿体。 |
| 关 键 词： | 狗头金 原生块金 表生改造 有限增生 金矿体 成因 |
| 文章编号： | 0495-5331(2002)02-0015-03 |
| 修稿时间： | 2001年3月21日 |
A NEW GENESIS OF NUGGET |
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| LI Zhiming,LIU Jia-jun,ZHANG Chang-jiang,FENG Cai-xi,LI En-dong.A NEW GENESIS OF NUGGET[J].Geology and Prospecting,2002,38(2):15-17. | |
| Authors: | LI Zhiming LIU Jia-jun ZHANG Chang-jiang FENG Cai-xi LI En-dong |
| Abstract: | On the basis of the objective facts including nugget s exist in primary gold ore bodies, the close relationships between nuggets and primary gold orebodies, the gold percentage of nuggets and the limited width of accretion for placer gold, and also a series of questions which can not be expla ined by supergene genesis theories, the authors discuss the genesis of nuggets a nd advance a new recognition. That is nugget formed on the basis of the transfor m and limited accretion of primary nugget in supergene environment. The authors also put forward the areas where nuggets found should have or had ever existed t he primary gold orebodies. |
| Keywords: | nugget primary nugget supergene transform lim ited accretion |
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