| 西秦岭铜矿区域地球化学研究 |
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| 引用本文： | 何进中.西秦岭铜矿区域地球化学研究[J].物探与化探,2003,27(4):269-275. |
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| 作者姓名： | 何进中 |
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| 作者单位： | 中国地质大学,湖北,武汉,430074;甘肃省地质勘查局,第二地质矿产勘查院,甘肃,永登,730300 |
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| 摘 要： | 对西秦岭地区4种主要成因类型铜矿的区域地球化学研究证明,在2个铜矿床或矿(化)点上很少显示铜或其它元素的浓集区.通过对甘肃南部碧口群分布地区主要铜矿产出的地球化学环境的分析认为,西秦岭地区各类型铜矿指示元素反映的是相应铜矿类型的区域地质建造,最佳指示元素则反映的是含矿地质建造.碧口群分布区的已知具规模的铜矿床及新探明的伐子坝中型铜矿均位于本区火山喷发沉积型铜矿的最佳指示元素所指示的有利部位.
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| 关 键 词： | 区域地球化学特征 地球化学色区 元素的浓集区与贫化区 最佳指示元素 地球化学环境 |
| 文章编号： | 1000-8918(2003)04-0269-07 |
| 收稿时间： | 2002-07-24 |
REGIONAL GEOCHEMICAL STUDIES OF COPPER DEPOSITS IN THE WEST QINLING MOUNTAINS |
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| Institution: | 1. China University of Geosciences, Wuhan 430074, China;
2. Gansu No.2 Institute of Geology and Mineral Exploration and Development, Yongden 730300, China |
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| Abstract: | A study of regional geochemical characteristics of four main genetic types of copper deposits in West Qinling Mountain area shows that there exist very few concentration areas of copper or other elements in 72 copper deposits or occurrences. Based on an analysis of the geochemical environment for the formation of major copper deposits within the distributive area of Bikou Group in southern Gansu, it is held that in West Qinling Mountain area, the indicator elements of various types of copper deposits only reflect the regional geological formations of the corresponding types of copper deposits, whereas the optimal indicator elements reflect ore bearing geological formations. The known copper deposits in the distributive area of Bikou Group and the newly discovered Faziba medium-size copper deposits are all located in the favorable positions indicated by the optimal indicator elements for the eruptive-sedimentary copper deposits of this area. |
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| Keywords: | regional geochemistry color area concentration area and depleted area optimal indicator elements geochemical environment |
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