| 北祁连西段蛇绿岩型超基性岩铬尖晶石及对岩体含矿性的指示 |
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| 引用本文： | 孙淑荣,郭原生,傅学明.北祁连西段蛇绿岩型超基性岩铬尖晶石及对岩体含矿性的指示[J].兰州大学学报(自然科学版),1993(4). |
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| 作者姓名： | 孙淑荣 郭原生 傅学明 |
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| 作者单位： | 兰州大学地质系 兰州730000
(孙淑荣，郭原生)，兰州大学地质系 兰州730000(傅学明) |
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| 摘 要： | 产于超基性岩中的副矿物铬尖晶石化学成分复杂,物理性质稳定,抗蚀变能力强.本文通过对北祁连西段九个青羊等六个超基性岩体副矿物铬尖晶石化学成分标型特征,铬尖晶石种属的研究,并计算了铬尖晶石的两种含铁率,探讨了该区分布的蛇绿岩型阿尔卑斯超基性岩体的含矿性.
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| 关 键 词： | 铬尖晶石 化学成分 含矿性 蛇绿岩型超基性岩 含铁率 |
Chrome Spinel and Its Indication to the Ore-bearing Potential of the Ophiolite-Type Ultrabasic Rocks in the Western Section of Northern Qilian Mountains |
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| Sun Shurong,Guo Yuqnsheng,Fu Xueming.Chrome Spinel and Its Indication to the Ore-bearing Potential of the Ophiolite-Type Ultrabasic Rocks in the Western Section of Northern Qilian Mountains[J].Journal of Lanzhou University(Natural Science),1993(4). |
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| Authors: | Sun Shurong Guo Yuqnsheng Fu Xueming |
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| Abstract: | As a kind of accessory mineral,chrome spinel contained in ultrabasic rocksis complicated in chemical composition,stable in physical property,and strong in antial-teration ability.In this paper,the typomorphic features of chemical compoxition andspecies of chrome spinel contained in six ultrabasic plutons in the western section ofnorthern Qilian Mountains have been studied.The iron-bearing ratio has been calculat-ed,and the ore-bearing features of the ophiolite-type Alpine ultrabasic plutons dis-tributing in this region have also been discussed. |
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| Keywords: | chrome spinel chemical composition ore-bearing potential ophiolite type ultrabasic rock iron-bearing rate |
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