| 闽西南大排铁多金属矿区燕山期岩体地球化学特征研究 |
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| 引用本文： | 赵天尧,于茵,王勇,周立冰.闽西南大排铁多金属矿区燕山期岩体地球化学特征研究[J].矿产与地质,2016(1). |
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| 作者姓名： | 赵天尧 于茵 王勇 周立冰 |
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| 作者单位： | 1. 华北地质勘查局第四地质大队,河北 秦皇岛,066013;2. 中国地质大学,北京,100083 |
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| 摘 要： | 通过岩相学、岩石化学、岩石地球化学及年代学研究,对燕山期岩体进行了初步的研究。初步得出矿区燕山期岩体主要为斑状二长花岗岩,石英二长岩和石英正长岩,花岗闪长岩次之。岩石化学及地球化学表明矿区岩体为偏铝质-弱过铝质钾玄岩系列I型花岗岩,源区岩石为麻粒相岩石,有辉石、斜长石和钾长石残余。矿区岩体形成时代为150Ma和130Ma,说明矿区岩体至少为两个期次产生,为复式岩体。
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| 关 键 词： | 铁多金属矿 岩石学特征 岩石地球化学 闽西南 |
Geochemical characteristics of Yanshanian rock mass in Dapai iron polymetallic mining area of southwestern Fujian |
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| Abstract: | Through the preliminary research on Yanshanian rock mass in terms of petrography,petrochemistry, petrogeochemistry and geochronology,the results indicated that Yanshanian rock mass consisted mainly of porphyritic monzonitic granite,adamellite and quartz syenite with lesser granodiorite.The petrochemical and geochemical study indicated that the rock mass in the mining area was metaluminous-weakly peraluminous shoshonite series I-type granite.The rocks in the source region are the granulite facies rocks with lesser py-roxene,plagioclase and potassic feldspar.The rock mass in the mining area are formed at 150Ma and 130Ma,and it indicates that the formation of the rock mass in the mining area can be divided into at least two stages and it is complex massif. |
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| Keywords: | iron polymetallic deposit petrological characteristic petrogeochemistry southwestern Fujian |
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