| 含矿基性-超基性岩的镁铁比值 |
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| 引用本文： | 代俊峰,宫磊,霍永豪.含矿基性-超基性岩的镁铁比值[J].地质找矿论丛,2016,31(1):42-46. |
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| 作者姓名： | 代俊峰 宫磊 霍永豪 |
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| 作者单位： | 兰州大学地质科学与矿产资源学院,兰州73000;甘肃省西部矿产资源重点实验室,兰州73000 |
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| 摘 要： | 基性-超基性岩中赋存有铜镍硫化物矿床、豆荚状铬铁矿床等许多重要的矿床,基性-超基性岩成岩成矿方面的研究多采用镁铁比值,但以往利用该比值时未考虑岩石的SiO_2含量、地质构造及岩石蚀变等一些重要条件。文章结合国内外一些重要的铜镍矿床和铬铁矿矿床,考虑到上述的几个条件,讨论了镁铁比值在划分岩石类型方面的应用,通过计算给出了与前人不同的镁铁比值划分区间。
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| 关 键 词： | 基性-超基性岩 铜镍矿床 铬矿床 镁铁比值 SiO2含量 地质构造 岩石蚀变 |
| 收稿时间： | 2014/12/12 0:00:00 |
The Mg/Fe ratio of ore-bearing basic-ultrabasic rocks |
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| DAI Junfeng,GONG Lei and HUO Yonghao.The Mg/Fe ratio of ore-bearing basic-ultrabasic rocks[J].Contributions to Geology and Mineral Resources Research,2016,31(1):42-46. |
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| Authors: | DAI Junfeng GONG Lei and HUO Yonghao |
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| Institution: | School of Eart Sciences, Lanzhou University, Lanzhou 730000, China;Key Laboratory of Mineral Resources in Western China, Lanzhou 730000, China;School of Eart Sciences, Lanzhou University, Lanzhou 730000, China;Key Laboratory of Mineral Resources in Western China, Lanzhou 730000, China;School of Eart Sciences, Lanzhou University, Lanzhou 730000, China;Key Laboratory of Mineral Resources in Western China, Lanzhou 730000, China |
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| Abstract: | There are many important ore deposits hosted in the basic-ultrabasic rocks, such as Cu-Ni sulphide deposits and podiform chromite deposits. Researches on petrogenisis and metallogenisis of basic-ultrabasic rocks applied generally the Mg/Fe ratio and ignored some crucial conditions such as SiO2 content, geological structure and rock alteration. In consideration of some important Cu-Ni deposits and chromite deposits at home and abroad and above conditions, this paper discussed the application of M/F in the rock classification and proposed new division fields based on calculation. |
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| Keywords: | basic-ultrabasic rock Cu-Ni deposits Cr deposits Mg/Fe ratio SiO2 content geological structure rock alteration |
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