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| The Geological Characteristics and Prospecting Direction of Ta-Nb Deposits in Laomuzhushi Mountain, Shangcheng, Henan |
| GUO Jun-gang1,2.3, BIAN Xiao-dong1,2.3, WANG Pan-xi1,2.3, WANG Shou-jing1,2.3 |
1.Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Science, Zhengzhou, Henan 450006, China;
2. National Engineering Center for Multipurpose Utilization of Non-Metallic Mineral Resources, Zhengzhou, Henan 450006, China;
3. Key Laboratory for Polymetallic Ore Evaluation and Utilization, MLR, Zhengzhou, Henan 450006, China |
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Abstract Laomuzhushi Ta-Nb ore field is located on the north side of the Dabie Mountains, in the core of Qinling-Dabie organic belt where east Qinling fold belt of Qinling fold system extends eastward. Here, a Ta-Nb deposit is found in K-feldspar leucogranulitite of the lower Dahongkou formation . The main Nb-and Ta-bearing minerals are niobite, ilmenorutile and titanium-rich hematite. The Ta-Nb ores there are characterized by fine grains and high level of dispersion. Laomuzhushi Ta-Nb deposit is metamorphic origin . In this paper, our focus is on the deposit geological characteristics and the ore-forming and ore-controlling factors, which are indicative of similar Ta-Nb deposits and other rare metal deposits in South Henan.
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Received: 29 July 2014
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2014, Vol. 1 
