| 金平地区二叠纪玄武岩与铜镍矿成因关系初探 |
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| 引用本文： | 张学书,秦德先,范柱国,刘光亮.金平地区二叠纪玄武岩与铜镍矿成因关系初探[J].地质与勘探,2004,40(5):49-55. |
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| 作者姓名： | 张学书 秦德先 范柱国 刘光亮 |
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| 作者单位： | 昆明理工大学,昆明,650093;云南省有色地质勘查院,昆明,650051;昆明理工大学,昆明,650093 |
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| 摘 要： | 金平地区玄武岩分布于扬子克拉通西南缘哀牢山深大断裂南西侧.文章通过对金平地区分布的二叠纪玄武岩、(超)镁铁质侵入岩及其共生铜镍矿矿石的岩石化学特征、微量元素及稀土元素特征等方面的研究,初步认为,金平地区玄武岩兼具洋中脊及大陆裂谷碱性-拉斑玄武岩特征,而镁铁质侵入岩兼具岛弧带和造山带的特征,并认为白马寨铜镍矿的(超)镁铁质侵入岩体及共生的矿床与玄武岩存在成因上的关系.
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| 关 键 词： | 二叠纪玄武岩 (超)镁铁质侵入岩 铜镍矿 白马寨 金平 |
| 文章编号： | 0495-5331(2004)05-0049-07 |
| 修稿时间： | 2003年10月22 |
GENETIC RELATION BETWEEN PERMIAN FLOOD BASALTS AND NICKEL-COPPER DEPOSITS IN THE JINPING AREA |
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| ZHANG Xue-shu.GENETIC RELATION BETWEEN PERMIAN FLOOD BASALTS AND NICKEL-COPPER DEPOSITS IN THE JINPING AREA[J].Geology and Prospecting,2004,40(5):49-55. |
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| Authors: | ZHANG Xue-shu |
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| Institution: | ZHANG Xue-shu~ |
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| Abstract: | The flood basalts in the Jinping area are distributed along the SW side of Ailaoshan deep-situated structure zone which located in the southwest margin of Yangtze craton. On the basis of primary study focused on the petrochemistry, trace elements and REE of flood basalts and (ultra)mafic intrusions, it is preliminarily concluded that flood basalts in the Jinping area have both the alkali and calc-alkali basalts of middle ocean ridge and continental rift, while the (ultra)mafic intrusions possess the features of basaltic rocks in arc-islands and intrusive rocks in orogenic zone. Results suggest that there is a genetic correlation among the flood basalts, (ultra)mafic intrusions and associated nickel-copper deposits. |
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| Keywords: | Permian flood basalts mafic intrusions nickel-copper deposits Baimazhai Jinping |
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