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华县西沟地区花岗岩体地球化学及成矿潜力
GEOCHEMISTRY AND METALLOGENIC POTENTIALITY OF GRANITE IN XIGOU AREA,HUAXIAN,SHAANXI PROVINCE
【摘要】 陕西华县西沟地区花岗岩体接触带发育钼多金属矿化,矿化与花岗岩关系密切,主要受剪切带控制。岩体的岩石地球化学研究并与金堆城钾长花岗斑岩比较,二者同是燕山期岩浆活动的产物;金堆城岩体具有同碰撞造山期地壳部分熔融作用产物特征,而西沟岩体为造山晚期岩浆分离结晶作用产物,综合成矿条件分析,认为西沟地区具有钼多金属成矿的潜力。
【Abstract】 Molybdenum polymetallic mineralization occurs at the contact zone of Xigou granite in Huaxian,Shanxi province.The mineralization is related to granite,and controlled by shear zone.Study on the lithogeochemistry and its correlation to Jinduicheng granite indicate that they are all products of Yanshanian magmatism. Jinduicheng granite is characterized by partial melting of crust during syn-collision orogenic period,Xigou granite by fractional crystallization of magma during post-orogeny.According to metallogenic conditions,there is molybdenum polymetallic metallogenic potentialiy in Xigou area.
【Key words】 geochemistry,; metallogenic potentiality; granite; Xigou area; Shaanxi province;
- 【文献出处】 地质找矿论丛 ,Contributions to Geology and Mineral Resources Research , 编辑部邮箱 ,2007年04期
- 【分类号】P618.65
- 【被引频次】11
- 【下载频次】167