| 北山南带金矿床(点)稳定同位素组成及找矿意义 |
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| 引用本文： | 芦青山,辛承琦.北山南带金矿床(点)稳定同位素组成及找矿意义[J].甘肃地质学报,1997,6(1):53-61. |
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| 作者姓名： | 芦青山 辛承琦 |
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| 作者单位： | 甘肃省地质矿产局物探队 |
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| 摘 要： | 通过对甘肃北山南带金矿床（点）稳定同位素组成特征的研究及水／岩交换理论提供的找矿信息，探讨了本区金矿床（点）的物质来源具多源性，但以壳幔混合型为主；矿源层形成于华力西中晚期，而燕山期是金的主要成矿期。提出钻井沟金矿点具找矿远景，其次为拾金坡；金沟子及花西山找矿意义不大。推测乌龙泉、老君庙金矿点和小西弓金矿床中带深部应有新的水／岩交换中心和盲矿体
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| 关 键 词： | 金矿床（点） 稳定同位素 物源与成因 找矿远景 甘肃 北山南带 |
STABLE ISOTOPE COMPOSITION CHARACTERISTICS AND ITS PROSPECTING SIGNIFICANCE FOR Au DEPOSITS (MINERAL OCCURRENCES)IN SOUTH BEISHAN ZONE |
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| Lu Qingshan,Xin Chengqi.STABLE ISOTOPE COMPOSITION CHARACTERISTICS AND ITS PROSPECTING SIGNIFICANCE FOR Au DEPOSITS (MINERAL OCCURRENCES)IN SOUTH BEISHAN ZONE[J].Acta Geologica Gansu,1997,6(1):53-61. |
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| Authors: | Lu Qingshan Xin Chengqi |
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| Institution: | Lu Qingshan Xin Chengqi (Geophysical Prospecting Team,Bureau of Geology and Mineral Resources of Gansu Province Zhangye 734024) |
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| Abstract: | Through the study of stable isotope composition characteristics for Au deposits(mineral occurrences )in the south Beishan zone,Gansu,and prospecting formation provided with the water/rock exchange theory,this paper approached that the material origin was manifold,but its master origin was crust mantly mixed type.During the Middle-Late Variscan period the source beds came into being,and Au mineralization epoch was mainly Yanshan period.The paper had put forward the Zuanjinggou Au mineral occurrence had prospect at first,and then was Shijinpo;prospecting significance of Jinggouzi and Huaxishan was not too.There are maybe new water/rock exchage center and blind orebodies in deep seeted ore belt of Wulongquan and Laojunmiao Au mineral occurrences and Xiaoxigong Au deposit. |
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| Keywords: | Au deposit(mineral occurrence) Stable isotope Material origin and genesis Prospect The south Beishan zone Gansu |
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