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2011, 30(4) 544-553 DOI:
ISSN: 1004-5589 CN: 22-1111/P |
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Geochemical characteristics of migmatitic granite in Gongchangling iron deposit of Liaoning with discussion on their genesis |
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LIU Da-Wei-1, LIU Su-Qiao-1, HONG Xue-Kuan-2, REN Qun-Zhi-2, HU Ke-1 |
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1. School of Marine Sciences��China University of Geosciences��Beijing 100083��China; 2. Institute of Geological Exploration��Liaoning Bureau of Metallurgic Geological Exploration��Anshan 114002��Liaoning��China |
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Abstract��
Analyzing the characteristics of major elements��trace elements and rare earth elements ( REE) of migmatitic granite in the second ore district of Gongchangling iron deposit in Liaoning Province��and studying their genesis of migmatitic granite showed that the Fe2O3 ��FeO��MgO and CaO are low in contents��while Na2O and K2 O are high; the trace element spider diagram is right deviation in type��and the incompatible elements are high in conteuts�� The fractionation of LREE is significantly with Eu negative animaly��while the Ce positive anomaly is not obviosly��which is similar to the REE characteristics of typical crustal granite�� The original rock of magmatitic granite in Gongchangling is Al-rich sedimentary in nature��and the formation of magmatitic granite is partial melting�� |
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Keywords��
magmatitic granite
geochemistry
Gongchangling
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Received Revised Online: |
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