Characteristics and Prospecting Direction of Granitic Pegmatite-Type Uranium in Danfeng Area, Shaanxi Province

FENG Zhang-sheng; ZHANG Xia-tao; JIAO Jin-rong; WANG Zhao-quan; WANG Qiang; Wang Ju-chan

2013 Vol. 46, No. 2

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Article navigation > Northwestern Geology > 2013 > 46(2): 159-166

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FENG Zhang-sheng, ZHANG Xia-tao, JIAO Jin-rong, WANG Zhao-quan, WANG Qiang, Wang Ju-chan. Characteristics and Prospecting Direction of Granitic Pegmatite-Type Uranium in Danfeng Area, Shaanxi Province[J]. Northwestern Geology, 2013, 46(2): 159-166.

Citation:

Characteristics and Prospecting Direction of Granitic Pegmatite-Type Uranium in Danfeng Area, Shaanxi Province

No. 224 Geologic Group of Shaanxi Provincial Geological Bureau of Nuclear Industry, Xi'an, 710024, China

Received Date: 06 November 2012

Revised Date: 03 March 2013

Publish Date: 15 June 2013

Abstract

Abstract

Distributed in vein form, the granitic pegmatite-type uranium in Danfeng Area, Shaanxi Province originates from uranium-rich biotite granitic pegmatite dyke, in the inside and outside contact belts of granitic stock in Caledonian Period. The ore is basically consisted of coarse granitic block and the accessory ore assemblage is apatite-zircon. Containing mass biotite and brownish-red oligoclase, the uranium ore is mainly uraninite, with characteristics like Si-rich, K-rich, Al-oversaturated, Eu-loss, LREE-rich, Mo-rich, Zr-rich, F-rich etc. This kind of Uranium belongs to crust-mantle mixing, magmatic-hydrothermal transitional fluid system with Ur, F elements and low-oxygen fugacity. Under the background of tensile continental dynamics, the uranium deposit is formed along with the differentiation and crystallization of Ur-rich biotite granitic pegmatite. In the fluid system, Ur is transported in F uranyl complex. In diagenetic process of magmatic crystallization differentiation, Ur formed uraninite and enriched in biotite granitic pegmatite, part of it developed into Uranium deposit body, and F developed into mass biotite mineral. It is also concluded that 300 m inside and outside contact belt of granitic stock southeast to the rock mass is the distribution range and prospecting direction of Uranium ore body.
- Danfeng area /
- Shaanxi Province /
- characteristics of granitic pegmatite-type uranium

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References

冯张生,张荣志,沙亚洲,等.陕西省商南县光石沟铀矿床外围铀矿普查报告[R].陕西省核工业地质局二二四大队,2011.

Google Scholar

Feng Zhangsheng, Zhang Rongzhi, Sha Yazhou, et al. The light gully uranium deposits peripheral uranium census report in Shaanxi Province, Shangnan[R]. No.224 Geological Team,Shaanxi Nuclear Geology Bureau, 2011.

Google Scholar

罗忠戌,沙亚洲,张展适,等.丹凤地区花岗伟晶岩型铀矿富集规律及成矿远景预测研究报告[R].中国核工业地质局,2008.

Google Scholar

Luo Zhongxu, Sha Yazhou, Zhang Zhanshi, et al. The study on Uranium enriching regularity and metallogenic prognosis study of Danfeng granitic-pegmatite uranium Deposit[R]. China Nuclear Industry Geological Bureau, 2008.

Google Scholar

王涛,胡能高,裴先治,等.秦岭杂岩的组成、构造格局及演化[J].地球学报,1997,18(4):345-351.

Google Scholar

Wang tao, Hu Nenggao, Pei Xianzhi, et al. composition, tectonic framework and evolution of the Qinling complex[J].Earth Science, 1997,18(4):345-351.

Google Scholar

张德会,张文淮,许国建,等.富F熔体-溶液体系流体地球化学及其成矿效应研究现状及存在问题[J].地学前缘(中国地质大学.北京)2004,11(2):479-489.

Google Scholar

Zhang Dehui,Zhang Wenhuai, Xu Guojian, et al. Rich F melt a solution of system fluid geochemistry and mineralization effects of the present condition and existence problem[J].Earth Science Frontiers (China University of Geosciences, Beijing)2004,11(2):479-489.

Google Scholar

冯张生,焦金荣,张夏涛,等.丹凤地区北部加里东期岩浆岩演化特征与铀矿化关系.世界核地质科学,2011,28(4):202-207.

Google Scholar

Feng Zhangsheng, Jiao Jinrong, Zhang Xiatao, et al. The relationship on evolution characteristics and uranium mineralization of the Caledonian magmatic rocks in the northern of Danfeng[J].Nuclear Seience,2011, 28(4):202-207.

Google Scholar

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