云南省腾冲市小龙河锡稀土多金属矿田新知及其稀土矿的发现
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摘要
通过对云南省腾冲市小龙河地区古永复式岩体原生构造、蚀变和矿化的类比、对比,结合构造地球化学、年代学研究和初步预查,新发现与之有关的热液弥散状蚀变、侵入角砾岩和大型稀土金属矿体,并伴生稀有金属铷(Rb)、铌(Nb)和稀散金属镓(Ga),存在晚期同岩浆断裂。花岗蚀变岩独居石、锆石和未蚀变黑云钾长花岗岩锡石、锆石U-Pb年龄分别为(75.61±0.47)Ma、(75.68±0.72)Ma、(76.3±3.2)Ma和(77.29±0.54)Ma,年龄相近,反映它们可能是岩浆晚期同构造活动的产物。
By the analogy and contrast of the primary structure,alteration and mineralization in Guyong rock body of Xiaolonghe area in Tengchong city,combining with tectonic geochemistry,geochronology and preliminary investigation,pervasive hydrothermal alteration,intrusive breccia and large REE ore bodies were discovered.And the rare metals(Rb and Nb) and scare metal(Ga) were accompanied.Also the synmagmatic faults were found in the later period.The U-Pb ages for the monazite and zircon of the altered granitic rocks are(75.61 ± 0.47) Ma and(75.68 ± 0.72) Ma,and the U-Pb ages for the cassiterite and zircon of the biotite K-feldspar granites are(76.3 ± 3.2) Ma and(77.29 ± 0.54) Ma.These ages are very close,which reflects that they may be the products of tectonic activities at later period of the magmatic action.
By the analogy and contrast of the primary structure,alteration and mineralization in Guyong rock body of Xiaolonghe area in Tengchong city,combining with tectonic geochemistry,geochronology and preliminary investigation,pervasive hydrothermal alteration,intrusive breccia and large REE ore bodies were discovered.And the rare metals(Rb and Nb) and scare metal(Ga) were accompanied.Also the synmagmatic faults were found in the later period.The U-Pb ages for the monazite and zircon of the altered granitic rocks are(75.61 ± 0.47) Ma and(75.68 ± 0.72) Ma,and the U-Pb ages for the cassiterite and zircon of the biotite K-feldspar granites are(76.3 ± 3.2) Ma and(77.29 ± 0.54) Ma.These ages are very close,which reflects that they may be the products of tectonic activities at later period of the magmatic action.
引文
[1]许成,宋文磊,何晨,等.外生稀土矿床的分布、类型和成因概述[J].矿物岩石地球化学通报,2015,34(2):234-241.
[2]陈毓川,裴荣富,张宏良,等.南岭地区与中生代花岗岩类有关的有色及稀有金属矿床地质[M].北京:地质出版社,1989:1-508.
[3]马楠,邓军,王庆飞,等.云南腾冲大松坡锡矿成矿年代学研究:锆石LA-ICP-MSU-Pb年龄和锡石LA-MC-ICPMSU-Pb年龄证据[J].岩石学报,2013,29(4):1223-1235.
[4]Wang C M,Deng J,Carranza E J M,et al.Tin metallogenesis associated with granitoids in the southwestern Sanjiang Tethyan Domain:Nature,deposit types,and tectonic setting[J].Gondw Res,2014,26(2):576-593.
[5]Deng J,Wang Q F,Li G J,et al.Tethys tectonic evolution and its bearing on the distribution of important mineral deposits in the Sanjiang region,SW China[J].Gondw Res,2014,26(2):419-437.
[6]Cao H W,Zou H,Zhang Y H,et al.Late Cretaceous magmatism and related metallogeny in the Tengchong area:Evidence from geochronological,isotopic and geochemical data from the Xiaolonghe Sn deposit,western Yunnan,China[J].Ore Geol Rev,2016,78:196-212.
[7]李光勋,孔雷.区域控岩控矿构造和矿田构造课题报告[R].成都:中国地质调查局西南地质资料馆,1985:1-60.
[8]云南省地质调查院.云南旧城—麻栗坝地区矿产远景调查[R].2008:1-80.
[9]刘素芳,张士鲁.腾冲—梁河锡矿带砂锡矿成矿机理及普查勘探方法研究[J].云南地质,1991,10(4):385-393.
[10]Murray H H,Janssen J.氧同位素可作高岭土成因的指示剂[J].易发成,译.基础地质译丛,1987(2):56-62.
[11]张元厚,毛景文,于明旭,等.一种酸淋滤成因的含钼石英脉——来自小秦岭北矿带大湖—秦南矿区的证据[J].吉林大学学报(地球科学版),2012,42(4):1011-1025.
[12]Misra K S.Understanding mineral deposits[M].Boston:Kluwer Academic Publishers,2000:409-411.
[13]施琳,陈吉琛,吴上龙,等.滇西锡矿带成矿规律[M].北京:地质出版社,1989:1-272.
[14]江彪,龚庆杰,张静,等.滇西腾冲大松坡锡矿区晚白垩世铝质A型花岗岩的发现及其地质意义[J].岩石学报,2012,28(5):1477-1492.
[15]张玙,金灿海,范文玉,等.腾冲地区与锡矿床有关的花岗岩地球化学特征及类型判别[J].地质学报,2013,87(12):1852-1863.
[16]李建忠,赵作新,陆生林,等.云南腾冲县小龙河锡稀土多金属矿田同岩浆构造地质特征[J].矿物学报,2015(s1):406-407.
[17]周济元,崔炳芳,陈宏明,等.赣南红山—锡坑迳地区铜锡矿地质及预测[M].北京:地质出版社,2000:55-61.
[18]陈莉,徐军,陈晶.扫描电子显微镜显微分析技术在地球科学中的应用[J].中国科学:地球科学,2015,45(9):1347-1358.
[19]Sillitoe R H,Halls C,Grant J N.Porphyry tin deposits in Bolivia[J].Economic Geology,1975,70(5):913-927.
[20]李建忠,陆生林,丁俊,等.云南省腾冲市小龙河锡矿田取得新认识并发现稀土矿[J].中国地质调查成果快讯,2016,2(11):23-26.
[21]范飞鹏,肖惠良,陈乐柱,等.赣南陂头一带风化壳淋积型稀土矿成矿地质特征[J].中国稀土学报,2014,32(1):101-107.
[22]池汝安,田君.风化壳淋积型稀土矿评述[J].中国稀土学报,2007,25(6):641-650.
[23]张祖海.华南风化壳离子吸附型稀土矿床[J].地质找矿论丛,1990,5(1):57-71.
[24]王登红,赵芝,于扬,等.离子吸附型稀土资源研究进展、存在问题及今后研究方向[J].岩矿测试,2013,32(5):796-802.
[25]王登红,陈振宇,黄凡,等.南岭岩浆岩成矿专属性及相关问题探讨[J].大地构造与成矿学,2014,38(2):230-238.
[26]吴元保,郑永飞.锆石成因矿物学研究及其对U-Pb年龄解释的制约[J].科学通报,2004,49(16):1589-1604.
[27]褚慧力.藏北阿里地区改则县雀康一带纳丁措组火山岩锆石U-Pb年龄和地球化学特征[J].中国地质调查,2016,3(6):37-48.
[28]Ishihara S,Hua R M,Hoshino M,et al.REE abundance and REE minerals in granitic rocks in the Nanling Range,Jiangxi Province,Southern China,and generation of the REE-rich weathered crust deposits[J].Res Geol,2008,58(4):355-372.
[2]陈毓川,裴荣富,张宏良,等.南岭地区与中生代花岗岩类有关的有色及稀有金属矿床地质[M].北京:地质出版社,1989:1-508.
[3]马楠,邓军,王庆飞,等.云南腾冲大松坡锡矿成矿年代学研究:锆石LA-ICP-MSU-Pb年龄和锡石LA-MC-ICPMSU-Pb年龄证据[J].岩石学报,2013,29(4):1223-1235.
[4]Wang C M,Deng J,Carranza E J M,et al.Tin metallogenesis associated with granitoids in the southwestern Sanjiang Tethyan Domain:Nature,deposit types,and tectonic setting[J].Gondw Res,2014,26(2):576-593.
[5]Deng J,Wang Q F,Li G J,et al.Tethys tectonic evolution and its bearing on the distribution of important mineral deposits in the Sanjiang region,SW China[J].Gondw Res,2014,26(2):419-437.
[6]Cao H W,Zou H,Zhang Y H,et al.Late Cretaceous magmatism and related metallogeny in the Tengchong area:Evidence from geochronological,isotopic and geochemical data from the Xiaolonghe Sn deposit,western Yunnan,China[J].Ore Geol Rev,2016,78:196-212.
[7]李光勋,孔雷.区域控岩控矿构造和矿田构造课题报告[R].成都:中国地质调查局西南地质资料馆,1985:1-60.
[8]云南省地质调查院.云南旧城—麻栗坝地区矿产远景调查[R].2008:1-80.
[9]刘素芳,张士鲁.腾冲—梁河锡矿带砂锡矿成矿机理及普查勘探方法研究[J].云南地质,1991,10(4):385-393.
[10]Murray H H,Janssen J.氧同位素可作高岭土成因的指示剂[J].易发成,译.基础地质译丛,1987(2):56-62.
[11]张元厚,毛景文,于明旭,等.一种酸淋滤成因的含钼石英脉——来自小秦岭北矿带大湖—秦南矿区的证据[J].吉林大学学报(地球科学版),2012,42(4):1011-1025.
[12]Misra K S.Understanding mineral deposits[M].Boston:Kluwer Academic Publishers,2000:409-411.
[13]施琳,陈吉琛,吴上龙,等.滇西锡矿带成矿规律[M].北京:地质出版社,1989:1-272.
[14]江彪,龚庆杰,张静,等.滇西腾冲大松坡锡矿区晚白垩世铝质A型花岗岩的发现及其地质意义[J].岩石学报,2012,28(5):1477-1492.
[15]张玙,金灿海,范文玉,等.腾冲地区与锡矿床有关的花岗岩地球化学特征及类型判别[J].地质学报,2013,87(12):1852-1863.
[16]李建忠,赵作新,陆生林,等.云南腾冲县小龙河锡稀土多金属矿田同岩浆构造地质特征[J].矿物学报,2015(s1):406-407.
[17]周济元,崔炳芳,陈宏明,等.赣南红山—锡坑迳地区铜锡矿地质及预测[M].北京:地质出版社,2000:55-61.
[18]陈莉,徐军,陈晶.扫描电子显微镜显微分析技术在地球科学中的应用[J].中国科学:地球科学,2015,45(9):1347-1358.
[19]Sillitoe R H,Halls C,Grant J N.Porphyry tin deposits in Bolivia[J].Economic Geology,1975,70(5):913-927.
[20]李建忠,陆生林,丁俊,等.云南省腾冲市小龙河锡矿田取得新认识并发现稀土矿[J].中国地质调查成果快讯,2016,2(11):23-26.
[21]范飞鹏,肖惠良,陈乐柱,等.赣南陂头一带风化壳淋积型稀土矿成矿地质特征[J].中国稀土学报,2014,32(1):101-107.
[22]池汝安,田君.风化壳淋积型稀土矿评述[J].中国稀土学报,2007,25(6):641-650.
[23]张祖海.华南风化壳离子吸附型稀土矿床[J].地质找矿论丛,1990,5(1):57-71.
[24]王登红,赵芝,于扬,等.离子吸附型稀土资源研究进展、存在问题及今后研究方向[J].岩矿测试,2013,32(5):796-802.
[25]王登红,陈振宇,黄凡,等.南岭岩浆岩成矿专属性及相关问题探讨[J].大地构造与成矿学,2014,38(2):230-238.
[26]吴元保,郑永飞.锆石成因矿物学研究及其对U-Pb年龄解释的制约[J].科学通报,2004,49(16):1589-1604.
[27]褚慧力.藏北阿里地区改则县雀康一带纳丁措组火山岩锆石U-Pb年龄和地球化学特征[J].中国地质调查,2016,3(6):37-48.
[28]Ishihara S,Hua R M,Hoshino M,et al.REE abundance and REE minerals in granitic rocks in the Nanling Range,Jiangxi Province,Southern China,and generation of the REE-rich weathered crust deposits[J].Res Geol,2008,58(4):355-372.
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