Journal of Jilin University(Earth Science Edition) ›› 2017, Vol. 47 ›› Issue (2): 452-463.doi: 10.13278/j.cnki.jjuese.201702111

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Geological Features and Ore Genesis of Huanggou Uranium Deposit in Eastern Liaoning Uranium Metallogenic Belt

Wu Di1, Zhuang Tingxin1, Tian Li1, Liu Xiaodong1, Li Weimin2   

  1. 1. Research Institute No. 240, CNNC, Shenyang 110032, China;
    2. College of Earth Sciences, Jilin University, Changchun 130061, China
  • Received:2016-08-13 Online:2017-03-26 Published:2017-03-26
  • Supported by:
    Supported by Exploration Project of China Nuclear Geology (201160) and National Key Research and Development Plan (2016YFC0600108-02)

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Abstract: The Lianshanguan area is located in the eastern Liaoning uranium metallogenic belt which belongs to the uranium metallogenetic province of the North China block. The reconnaissance and exploration on uranium deposit have been carried out in recent years to understand the mineralization characteristics and ore genesis. Based on the field investigation and laboratory studies, authors systematically studied petrologic, geochemical and wall-rock alteration characteristics of ore-hosting rocks. The results show that there are four types of anatexites in the ore-hosting rock series, which are characterized by the high silica content and the various content of chlorite. Moreover, there is a negative correlation between quartz and chlorite contents in the anatexite. The major element compositions in the ore-hosting rock show that it contains high SiO2, Na2O and K2O, with slightly high Al2O3 and low MgO and CaO. Meanwhile, the trace elements show the enrichment of Be, Mo, Pb, Y, Ba, La, Cu and depletion of Co, Ni, Zn, Cr, Ti, V. These studies significantly demonstrate that such paragenetic elements as Pb, Mo, V, Be as are also closely related to uranium mineralization. Rare-earth element characteristics of samples are remarkable Eu negative anomalies, enriched in LREE (light rare earth elements) and depleted in HREE (heavy rare earth elements). Colloidal pyritization, chloritization, silicification have close relationship with uranium mineralization. It's first proposed that there occur re-melting migmatite-hydrothermal uranium deposits in the Lianshanguan area.

Key words: uranium mineralization, geochemistry, ore genesis of uranium deposit, metallogenic model, Lianshanguan, Huanggou uranium deposit

CLC Number: 

  • P588.3
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