黄沙铀矿区221铀矿床微量、稀土元素地球化学特征及其意义
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摘要
221铀矿床位于黄沙铀矿区中部,其深部及外围具有一定的找矿前景。系统采集矿床坑道内矿石及围岩样品,对矿床微量元素、稀土元素地球化学特征及其与铀成矿的内在联系进行了深入探讨。研究表明,矿石与围岩中微量元素的分类明显不同,相关性上也有较大差异。与该矿床铀迁移、富集密切相关的元素有Sc、Ni、Y、Nb、Sr、Cs、Pb等高场强元素。稀土元素特征显示铀成矿物质来源具有上、下地壳混合的特点,成矿流体具有幔源性质。
Uranium deposit 221 is located in the middle of the Huangsha uranium ore distric-t,The piuton is believed to have certain exploration potential in its deep and the rock around. On the base of systemic collection the ore and wall rocks samples in tunnels. The geochemical chara-cteristics of trace elements and rare earth elements and the intrinsic realtionto uranium mineraliz- ation had in-depth discussed. Research shows that the trace elements classification in the ore and wall rocks is obvious defferent,the relativity between each elements alsohas bigger defferent. And some high field intensity elements like Sc,Ni,Y,Nb,Sr,Cs,Pb are closely related to the uranium migration and enrichment of the ore deposit. The characteristics ofthe rareelement suggest that uranium metallogenic material has the feature of the upper and lower crust mixed,and the ore-forming fluid has the nature of the mantle source.
Uranium deposit 221 is located in the middle of the Huangsha uranium ore distric-t,The piuton is believed to have certain exploration potential in its deep and the rock around. On the base of systemic collection the ore and wall rocks samples in tunnels. The geochemical chara-cteristics of trace elements and rare earth elements and the intrinsic realtionto uranium mineraliz- ation had in-depth discussed. Research shows that the trace elements classification in the ore and wall rocks is obvious defferent,the relativity between each elements alsohas bigger defferent. And some high field intensity elements like Sc,Ni,Y,Nb,Sr,Cs,Pb are closely related to the uranium migration and enrichment of the ore deposit. The characteristics ofthe rareelement suggest that uranium metallogenic material has the feature of the upper and lower crust mixed,and the ore-forming fluid has the nature of the mantle source.
引文
1广东省地质矿产局.广东省区域地质志.北京:地质出版社,1982Bureau of geology and mineral resources of Guangdong province.Regional geology of Guangdong province.Beijing:Geological Publishing House,1982
2杜乐天.花岗岩型铀矿床文集.北京:原子能出版社,1982Du L T.Granite type uranium deposit collection.Beijing:Atomic Energy Press,1982
3赵振华.微量元素地球化学.地球科学进展,1992;7(5):65-66Zhao Z H.Geochemistry of trace elements.Advance in Earth Sciences,1992;7(5):65-66
4祁家明,徐争启,梁军,等.桂北376铀矿床微量元素、稀土元素地球化学特征及其意义.铀矿地质,2013;29(1):1-8Qi J M,Xu Z Q,Liang J,et al.Geochemical characteristics of trace rare earth elements and itssignificance in urainum deposit 376,North Guangxi.Uraium Geology,2013;29(1):1-8
5 Rollison H R.Petrogrchemistry.Yang X M,Yang X Y,Chen X,Translation.Hefei:Chinese Science and Technology University Publishing House,2000:179-205
6黎彤.化学元素的地球丰度.地球化学,1976;(3):167-174Li T.The chemical element abundance of the earth.Geochimica,1976;(3):167-174
7张国玉,王正其,梁良.相山、下庄铀矿田稀土元素特征对比.矿物岩石,2006;26(1):64-68Zhang G Y,Wang Z Q,Liang L.Correlation of REE features brtween Xiangshan and Xiazhuang uranium ore fields.Minerals and Rocks,2006;26(1):64-68
8张敏,陈培荣,黄国龙,等.南岭龙源坝复式岩体的地球化学特征研究.铀矿地质,2006;22(6):336-344Zhang M,Chen P R,Huang G L,et al.The research on the geochemical characteristics of Longyuanba composite pluton in Nanling Region.Uraium Geology,2006;22(6):336-344
9 Taylor S R,Mc Lennan S M.The continental crust:its composition and evolution.Blackwell Scientific Publications Oxford,1985
10 Bau M,Du Lski P.Comparative study of yttrium and rare-earth element behaviors in fluorine-rich hydrothermal fluids.Contrib Mineral Petrol,1995;119:213-223
11丁振举.海底热液系统高温流体的稀土元素组成及其控制因素.地球科学近展,2000;15(3):307-312Ding Z J.Rare earth elements compositions of high-temperature hydrothermal fluids in sea floor and control factors.Advance in Earth Scince,2000;15(3):307-312
12丁振举,姚书振,刘丛强,等.东沟坝多金属矿床喷流沉积成矿特征的稀土元素地球化学示踪.岩石学报,2003;19(4):792-798Ding Z J,Yao S Z,Liu C Q,et al.The characteristics of exhalationsedimentary deposit of Donggouba polymetal deposit:evidence from ore's REE composition.Acta Petrologica Sinica,2003;19(4):792-798
13邓平,沈渭洲,凌洪飞,等.地幔流体与铀成矿作用:以下庄矿田仙石铀矿床为例.地球化学,2003;32(6):510-528Deng P,Shen W Z,Ling H F,et al.Uranium mineralization reated to mantel fluid:a case study of the Xianshi deposit in the Xiazhuang Urainum Ore field.Geochimica,2003;32(6):510-528
2杜乐天.花岗岩型铀矿床文集.北京:原子能出版社,1982Du L T.Granite type uranium deposit collection.Beijing:Atomic Energy Press,1982
3赵振华.微量元素地球化学.地球科学进展,1992;7(5):65-66Zhao Z H.Geochemistry of trace elements.Advance in Earth Sciences,1992;7(5):65-66
4祁家明,徐争启,梁军,等.桂北376铀矿床微量元素、稀土元素地球化学特征及其意义.铀矿地质,2013;29(1):1-8Qi J M,Xu Z Q,Liang J,et al.Geochemical characteristics of trace rare earth elements and itssignificance in urainum deposit 376,North Guangxi.Uraium Geology,2013;29(1):1-8
5 Rollison H R.Petrogrchemistry.Yang X M,Yang X Y,Chen X,Translation.Hefei:Chinese Science and Technology University Publishing House,2000:179-205
6黎彤.化学元素的地球丰度.地球化学,1976;(3):167-174Li T.The chemical element abundance of the earth.Geochimica,1976;(3):167-174
7张国玉,王正其,梁良.相山、下庄铀矿田稀土元素特征对比.矿物岩石,2006;26(1):64-68Zhang G Y,Wang Z Q,Liang L.Correlation of REE features brtween Xiangshan and Xiazhuang uranium ore fields.Minerals and Rocks,2006;26(1):64-68
8张敏,陈培荣,黄国龙,等.南岭龙源坝复式岩体的地球化学特征研究.铀矿地质,2006;22(6):336-344Zhang M,Chen P R,Huang G L,et al.The research on the geochemical characteristics of Longyuanba composite pluton in Nanling Region.Uraium Geology,2006;22(6):336-344
9 Taylor S R,Mc Lennan S M.The continental crust:its composition and evolution.Blackwell Scientific Publications Oxford,1985
10 Bau M,Du Lski P.Comparative study of yttrium and rare-earth element behaviors in fluorine-rich hydrothermal fluids.Contrib Mineral Petrol,1995;119:213-223
11丁振举.海底热液系统高温流体的稀土元素组成及其控制因素.地球科学近展,2000;15(3):307-312Ding Z J.Rare earth elements compositions of high-temperature hydrothermal fluids in sea floor and control factors.Advance in Earth Scince,2000;15(3):307-312
12丁振举,姚书振,刘丛强,等.东沟坝多金属矿床喷流沉积成矿特征的稀土元素地球化学示踪.岩石学报,2003;19(4):792-798Ding Z J,Yao S Z,Liu C Q,et al.The characteristics of exhalationsedimentary deposit of Donggouba polymetal deposit:evidence from ore's REE composition.Acta Petrologica Sinica,2003;19(4):792-798
13邓平,沈渭洲,凌洪飞,等.地幔流体与铀成矿作用:以下庄矿田仙石铀矿床为例.地球化学,2003;32(6):510-528Deng P,Shen W Z,Ling H F,et al.Uranium mineralization reated to mantel fluid:a case study of the Xianshi deposit in the Xiazhuang Urainum Ore field.Geochimica,2003;32(6):510-528