豫南地区铀矿床成矿地质特征及控矿因素
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摘要
豫南地区特别是大别山北坡为铀矿化密集区,区内铀矿化类型主要为火山岩型铀矿化和砂岩型铀矿化。该区铀矿床成矿地质特征及控矿因素研究表明:(1)该区铀矿化的形成明显受地层、构造、岩浆岩控制,风化作用和热液活动也为控制矿化形成的重要因素;(2)区内燕山期岩浆活动强烈,地质构造复杂,断裂多具有多期次活动的特点,为铀矿找矿靶区。
Southern Henan Province especially for north slope of Dabie Mountain is the concentration area of uranium mineralization,the uranium mineralization types are mainly for volcanic type uranium mineralization and sandstone type uranium mineralization in the area. Based on the geological working results of the area,the metallogenic geological characteristics and ore-controlling factors of the uranium deposit in the area are studied. The study results show that:(1) the formation of uranium mineralization is mainly controlled by the factors of strata,structure and magmatic rock,besides that,weathering and hydrothermal activity are the important ore-controlling factors of the uranium mineralization;(2)in Yanshanian,the magnetic activity is strong and geological structure is complex,the faults are characterized by multiple periods of activity,it is the favorable prospecting target area of uranium deposit.
Southern Henan Province especially for north slope of Dabie Mountain is the concentration area of uranium mineralization,the uranium mineralization types are mainly for volcanic type uranium mineralization and sandstone type uranium mineralization in the area. Based on the geological working results of the area,the metallogenic geological characteristics and ore-controlling factors of the uranium deposit in the area are studied. The study results show that:(1) the formation of uranium mineralization is mainly controlled by the factors of strata,structure and magmatic rock,besides that,weathering and hydrothermal activity are the important ore-controlling factors of the uranium mineralization;(2)in Yanshanian,the magnetic activity is strong and geological structure is complex,the faults are characterized by multiple periods of activity,it is the favorable prospecting target area of uranium deposit.
引文
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[10]张兴奇.信宜锡坪钼铜锡矿围岩蚀变与成矿规律[J].中国科技信息,2011(6):32-33.
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