康滇地轴中段横山岩体的铀矿化类型与找矿方向
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摘要
20世纪60年代以来,康滇地轴中段横山岩体已发现多处铀矿点,铀矿化特征以A10铀矿点为代表。前人认为A10铀矿点为古元古代基底混合岩型,本文从铀异常的分布形态、混合岩的产出形态、变质相、成矿年龄、铀矿物元素组合特征方面例证,认为其应该属于印支期花岗岩外接触带型,并从岩体、岩性、构造、热液方面分析了该区的成矿条件,指出该区存在良好的花岗岩型铀矿成矿条件,找矿方向应该是花岗岩外接触带与碎裂长英质脉有关的热液型铀矿。
Many uranium ore occurrences have been discovered in the Hengshan intrusive body in the middle of the Xikang-Yunan axis since the 1960s. The A10 uranium ore occurrence represents the mineralization character of the Henshan intrusive body. Previous researches considered that the A10 uranium ore occurrence belongs to a migmatite uranium deposit in basement of platform at Proterozoic Era. We suggest that it belongs to a granite ura- nium deposit at Indosinian Era,based on the uranium anomaly distribution,shape of migmatite,metamorphic facies,mineralization age and combination characteristics of the uranium mineral elements. We analyze the metallogenic conditions from the aspects of the intrusive body,lithological character, structure,and hydrothermal solution,and then point out that the Hengshan intrusive body has good metallogenic conditions for forming granite uranium de- posits. The next exploration work should focus on hydrothermal deposits in relation to fragmental dikes in the contact zone of the Hengshan intrusive body.
Many uranium ore occurrences have been discovered in the Hengshan intrusive body in the middle of the Xikang-Yunan axis since the 1960s. The A10 uranium ore occurrence represents the mineralization character of the Henshan intrusive body. Previous researches considered that the A10 uranium ore occurrence belongs to a migmatite uranium deposit in basement of platform at Proterozoic Era. We suggest that it belongs to a granite ura- nium deposit at Indosinian Era,based on the uranium anomaly distribution,shape of migmatite,metamorphic facies,mineralization age and combination characteristics of the uranium mineral elements. We analyze the metallogenic conditions from the aspects of the intrusive body,lithological character, structure,and hydrothermal solution,and then point out that the Hengshan intrusive body has good metallogenic conditions for forming granite uranium de- posits. The next exploration work should focus on hydrothermal deposits in relation to fragmental dikes in the contact zone of the Hengshan intrusive body.
引文
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Feng Ming-yue,He De-bao.2012.Uranium rich granite and uranium productive granite in south China[J].Uranium Geology,28(4):199-207 (in Chinese with English abstract)
Fu Shu-chao.2011.Geologic characters and genesis of the Pingdi molybdenum deposit in the Wuyi Shan Mountains,Fujian Province[J].Geology and Exploration,47(2):268-272(in Chinese with English abstract)
Gao Yang,Fan Hong-hai,Chen Dong-huan,Nie Jiang-tao,Wang Shengyun.2012.The alaskite-type uranium deposit:A product of coupling of tectonism with magmatism[J].Geology and Exploration,48(5):1058-1066(in Chinese with English abstract)
He Yu-kun,Zhang De-hui,Li Jian-nan.2010.Fluid geochemistry and its mineralization significance of the uranium ore deposit in Quanzhou,GuangxiProvince[J].Geology and Exploration,45(4):670-680(in Chinese with English abstract)
Han Juan,Wang Yan-bin,Wang Deng-hong,Chen Zheng-hui,Wang Qing-li,Hou Ke-jun.2011.Age and genesis of the granite in the Huangfengling uranium deposit,Jiangxi Province:evidence from zircon U-Pb Dating and Hf isotopes[J].Geology and Exploration,47(2):284-293(in Chinese with English abstract)
Liu Cheng-dong,Zhang Ai,Zhong Peng-cheng,Liang Liang.2010.The rock and mineral chemicalcharacteristics of alkaline rocks in Zhuguang mining area of northern Guangdong and its relationship with uranium mineralization[J].Geology and Exploration,46(1):33-40(in Chinese with English abstract)
Yu Da-gan,Wu Ren-gui,Chen Pei-rong.2005.Geology of uranium resources[M].Harbin:Harbin Institute of Technology Press:117-156 (in Chinese)
Zeng Wen-le,He Yu-hua,Zhang Liu-gui,Chen Yu-lin,Shao Wei-jiang.2010.A study on wall-rock alteration of uranium mineralization in Taoshan ore-field[J].Geology and Exploration,46(1):1-9(in Chinese with English abstract)
Zhang Xue-feng,Liu Xiao-dong,Liu Jian-zhao.2011.Geochemical characteristics of the Huashan granites in Guangxi Province and their uranium-bearing potential[J].Geology and Exploration,45(6):1051-1058(in Chinese with English abstract)
四川省地质矿产局.1995.1∶5万米易幅地质图说明书[R].四川:四川省地图出版社:5-200
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冯明月,何德宝.2012.华南富铀花岗岩和产铀花岗岩特征[J].铀矿地质,28(4):199-207
傅树超.2011.福建省武夷山坪地钼矿床地质特征及成因探讨[J].地质与勘探,47(2):268-272
高阳,范洪海,陈东欢,聂江涛,王生云.2012.白岗岩型铀矿床:构造和岩浆作用耦合的产物[J].地质与勘探,48(5):1058-1066
何玉坤、张德会、黎建南.2010.广西全州铀矿田流体地球化学及其成矿意义[J].地质与勘探,46(4):670-680
韩娟,王彦斌,王登红,陈郑辉,王清利,侯可军.2011.江西黄蜂岭铀矿床花岗岩时代、成因:锆石U-Pb年龄和Hf同位素证据[J].地质与勘探,47(2):284-293
刘成东,张爱,钟鹏程,梁良.2010.粤北诸广矿区碱交代岩岩石化学和矿物化学特征及其与铀成矿关系[J].地质与勘探,46(1):33-40
余达淦,吴仁贵,陈培荣.2005.铀资源地质学[M].哈尔滨:哈尔滨工业大学出版社:117-156
曾文乐,何育华,张柳贵,陈育林,邵维江.2010.桃山矿田铀矿化围岩蚀变研究[J].地质与勘探,46(1):1-9
张雪峰,刘晓东,刘剑钊.2011.广西花山花岗岩体地球化学特征及产铀潜力分析[J].地质与勘探,47(6):1051-1058
①中国人民解放军基本建设工程兵第二七一团.1982.四川米易-渡口地区铀成矿远景区划报告
②核工业西南地勘局二八O研究所实验室.1990.康滇地轴元古代地层矿化类型的演示矿物及地球化学特征
③核工业西南地勘局二八O研究所地质室.1990.康滇地轴元古代地层成矿类型、地质背景及找矿方向
Chen Jun,Wang He-nian.2005.Geochemistry[M].Beijing:Science Press:44-45(in Chinese)
Feng Ming-yue,He De-bao.2012.Uranium rich granite and uranium productive granite in south China[J].Uranium Geology,28(4):199-207 (in Chinese with English abstract)
Fu Shu-chao.2011.Geologic characters and genesis of the Pingdi molybdenum deposit in the Wuyi Shan Mountains,Fujian Province[J].Geology and Exploration,47(2):268-272(in Chinese with English abstract)
Gao Yang,Fan Hong-hai,Chen Dong-huan,Nie Jiang-tao,Wang Shengyun.2012.The alaskite-type uranium deposit:A product of coupling of tectonism with magmatism[J].Geology and Exploration,48(5):1058-1066(in Chinese with English abstract)
He Yu-kun,Zhang De-hui,Li Jian-nan.2010.Fluid geochemistry and its mineralization significance of the uranium ore deposit in Quanzhou,GuangxiProvince[J].Geology and Exploration,45(4):670-680(in Chinese with English abstract)
Han Juan,Wang Yan-bin,Wang Deng-hong,Chen Zheng-hui,Wang Qing-li,Hou Ke-jun.2011.Age and genesis of the granite in the Huangfengling uranium deposit,Jiangxi Province:evidence from zircon U-Pb Dating and Hf isotopes[J].Geology and Exploration,47(2):284-293(in Chinese with English abstract)
Liu Cheng-dong,Zhang Ai,Zhong Peng-cheng,Liang Liang.2010.The rock and mineral chemicalcharacteristics of alkaline rocks in Zhuguang mining area of northern Guangdong and its relationship with uranium mineralization[J].Geology and Exploration,46(1):33-40(in Chinese with English abstract)
Yu Da-gan,Wu Ren-gui,Chen Pei-rong.2005.Geology of uranium resources[M].Harbin:Harbin Institute of Technology Press:117-156 (in Chinese)
Zeng Wen-le,He Yu-hua,Zhang Liu-gui,Chen Yu-lin,Shao Wei-jiang.2010.A study on wall-rock alteration of uranium mineralization in Taoshan ore-field[J].Geology and Exploration,46(1):1-9(in Chinese with English abstract)
Zhang Xue-feng,Liu Xiao-dong,Liu Jian-zhao.2011.Geochemical characteristics of the Huashan granites in Guangxi Province and their uranium-bearing potential[J].Geology and Exploration,45(6):1051-1058(in Chinese with English abstract)
四川省地质矿产局.1995.1∶5万米易幅地质图说明书[R].四川:四川省地图出版社:5-200
陈俊,王鹤年.2005.地球化学[M].北京:科学出版社:44-45
冯明月,何德宝.2012.华南富铀花岗岩和产铀花岗岩特征[J].铀矿地质,28(4):199-207
傅树超.2011.福建省武夷山坪地钼矿床地质特征及成因探讨[J].地质与勘探,47(2):268-272
高阳,范洪海,陈东欢,聂江涛,王生云.2012.白岗岩型铀矿床:构造和岩浆作用耦合的产物[J].地质与勘探,48(5):1058-1066
何玉坤、张德会、黎建南.2010.广西全州铀矿田流体地球化学及其成矿意义[J].地质与勘探,46(4):670-680
韩娟,王彦斌,王登红,陈郑辉,王清利,侯可军.2011.江西黄蜂岭铀矿床花岗岩时代、成因:锆石U-Pb年龄和Hf同位素证据[J].地质与勘探,47(2):284-293
刘成东,张爱,钟鹏程,梁良.2010.粤北诸广矿区碱交代岩岩石化学和矿物化学特征及其与铀成矿关系[J].地质与勘探,46(1):33-40
余达淦,吴仁贵,陈培荣.2005.铀资源地质学[M].哈尔滨:哈尔滨工业大学出版社:117-156
曾文乐,何育华,张柳贵,陈育林,邵维江.2010.桃山矿田铀矿化围岩蚀变研究[J].地质与勘探,46(1):1-9
张雪峰,刘晓东,刘剑钊.2011.广西花山花岗岩体地球化学特征及产铀潜力分析[J].地质与勘探,47(6):1051-1058
①中国人民解放军基本建设工程兵第二七一团.1982.四川米易-渡口地区铀成矿远景区划报告
②核工业西南地勘局二八O研究所实验室.1990.康滇地轴元古代地层矿化类型的演示矿物及地球化学特征
③核工业西南地勘局二八O研究所地质室.1990.康滇地轴元古代地层成矿类型、地质背景及找矿方向