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地球深部包体与成矿关系——一个有意义的研究方向
Relationship of the Deep-seated Xenoliths to the Mineralization——a Significant Research
【摘要】 结合在实际工作中的体会,提出和讨论了"地球深部包体与成矿关系"这一有意义的研究方向及其先导性科学问题。地球深部包体中镍、金、钼、钨等成矿元素的含量是不均一的,镍和金在地幔岩包体中含量最高,钼在玄武岩及镁铁质麻粒岩包体中最高,而钨在长英质麻粒岩和花岗岩类包体中含量最高。这些反映岩石圈和软流圈以及岩石圈的不同层次中镍、金、钼、钨等成矿元素的含量不均一,分别提供了地壳中镍、金、钼、钨矿床的初始物质来源。这一认识可能给镍、金、钼、钨等金属矿床和矿床集中区的战略预测提供一些新思路。
【Abstract】 The relationship of the deep-seated xenoliths to the mineralization and related guide scientific problems are put forward and discussed.The contents of Ni,Au,Mo,W of the deep-seated xenoliths and their host basalts from eastern China are inhomogeneous.The contents of Ni,Au are highest in the mantle-derived xenoliths;the contents of Mo,W are highest in the basalts and the mafic granulite,and the leptite and the granitoids,respectively.Those reflect the contents of Ni,Au,Mo,W in different spheres of Earth may be inhomogeneous.The result may have special significance on the controlling of the formation and distribution of Ni,Au,Mo,W deposits-concentrated districts.
【Key words】 deep-seated; xenolith; mineralization; ore deposit; research;
- 【文献出处】 地球科学与环境学报 ,Journal of Earth Sciences and Environment , 编辑部邮箱 ,2010年01期
- 【分类号】P611;P595
- 【被引频次】7
- 【下载频次】191