黔西南赖子山背斜西翼金矿综合信息找矿预测
|
摘要
赖子山背斜为黔西南卡林型金矿重要的成矿背斜之一。结合近年来找矿薄弱的背斜西翼地区地质工作成果,系统分析了背斜西翼成矿地质背景,地球化学、地球物理和遥感异常特征。通过综合研究西翼的成矿地质特征和找矿技术异常信息,总结了找矿标志:1吴家坪组下部泥质灰岩和黏土岩中金含量高(w(Au)>0.1 g/t)且厚88余米的局部地段可作为地层及岩性标志;2近SN、NE向逆冲断层及其派生构造为构造找矿标志;3硅化与褐铁矿化为氧化矿的蚀变找矿标志,硅化、黄铁矿化、黏土化、有机碳化为原生矿的蚀变找矿标志;4沿断裂构造呈带状或线状分布的Au、As及组合元素地球化学异常为重要的地球化学找矿标志;5线-环构造区且伴有铁染、羟基异常存在的区域可作为遥感异常找矿标志;6剩余重力和航磁正负异常的过渡带、负异常扭曲部位可作为地球物理找矿标志。结合上述分析,认为背斜西翼地球化学背景、异常、矿化蚀变及矿物组合等方面与背斜东翼相似,具备类似东翼大型金矿的成矿条件。基于背斜西翼与金矿成矿有关的地质-构造特征、找矿技术异常信息、找矿标志的综合研究,圈定了庆坪—狮子顶、达窝—长坪、塘新寨—坡稿地区3个找矿靶区,对各靶区内的重要异常特征和庆坪、长坪等金矿点的找矿进展进行了详细分析,并对各靶区的下一步找矿工作重点进行了讨论,供区内进一步开展金矿找矿勘查工作参考。
The Laizishan anticline is one of the important ore-forming anticlines in the Carlin-type gold deposits in southwest Guizhou province. In recent years,the prospecting work has been carried out in the west margin of the weakly inclined anticline. Combing with some related working results of the west margin of Laizishan anticline,the metallogenic geological background,anomalies characteristics of geochemical,geophysical and remote sensing of the west margin of Laizishan anticline are analyzed systematically. Based on the comprehensive study of metallogenic geological characteristics and the anomalous information of the prospecting technology of the western anticline,the following prospecting sings are summarized in combination with the investigation work in the area: 1The high Au content in the argillaceous limestone and clay rock from the lower Wujiaping formation of Permian,the local area which Au content is greater than 0. 1 g/t and the thickness is more than 88 m can be taken as the formation and lithology prospecting signs; 2SN-direction and NE-direction metallogenic thrust faults and its derived structures are the structure prospecting signs; 3 silicification and limonite mineralization are taken as the alteration prospecting sign of oxidized deposits,silicification,pyrite mineralization,clay,organic carbonation are the alteration prospecting signs of primary deposits; 4geochemical anomalies of Au,As and combined elements distributed along the fault structure are banded or linear are taken as the important geochemical prospecting signs; 5remote sensing interpretation of the line-ring tectonic zone and associated with iron dyeing and hydroxyl anomalies can be regarded as the remote sensing anomaly prospecting signs; 6residual gravity and aeromagnetic positive and negative anomalies of the transition zone and negative anomalies can be regarded as the geophysical prospecting signs. The above analysis results show that the geochemical background,geochemical and geophysical anomalies,mineralized alterations and mineral composition of the western anticline are similar to the ones of the eastern anticline,therefore,it has the metallogenic conditions of the formation of the large scale gold deposits. Based on the comprehensive analysis of geological-structure characteristics related to gold metallogenic,anomalous information of the prospecting technology and prospecting signs of the western anticline,the three prospecting target areas of Qingping-Shiziding,Dawo-Changping,Xintangzhai-Pogao are delineated,the important anomalies characteristics and the gold points such as Qingping,Changping etc of the above prospecting target areas are discussed in detail,besides that,the further gold prospecting directions of the areas are also analyzed so as to provide some reference for the further gold prospecting work in the area.
The Laizishan anticline is one of the important ore-forming anticlines in the Carlin-type gold deposits in southwest Guizhou province. In recent years,the prospecting work has been carried out in the west margin of the weakly inclined anticline. Combing with some related working results of the west margin of Laizishan anticline,the metallogenic geological background,anomalies characteristics of geochemical,geophysical and remote sensing of the west margin of Laizishan anticline are analyzed systematically. Based on the comprehensive study of metallogenic geological characteristics and the anomalous information of the prospecting technology of the western anticline,the following prospecting sings are summarized in combination with the investigation work in the area: 1The high Au content in the argillaceous limestone and clay rock from the lower Wujiaping formation of Permian,the local area which Au content is greater than 0. 1 g/t and the thickness is more than 88 m can be taken as the formation and lithology prospecting signs; 2SN-direction and NE-direction metallogenic thrust faults and its derived structures are the structure prospecting signs; 3 silicification and limonite mineralization are taken as the alteration prospecting sign of oxidized deposits,silicification,pyrite mineralization,clay,organic carbonation are the alteration prospecting signs of primary deposits; 4geochemical anomalies of Au,As and combined elements distributed along the fault structure are banded or linear are taken as the important geochemical prospecting signs; 5remote sensing interpretation of the line-ring tectonic zone and associated with iron dyeing and hydroxyl anomalies can be regarded as the remote sensing anomaly prospecting signs; 6residual gravity and aeromagnetic positive and negative anomalies of the transition zone and negative anomalies can be regarded as the geophysical prospecting signs. The above analysis results show that the geochemical background,geochemical and geophysical anomalies,mineralized alterations and mineral composition of the western anticline are similar to the ones of the eastern anticline,therefore,it has the metallogenic conditions of the formation of the large scale gold deposits. Based on the comprehensive analysis of geological-structure characteristics related to gold metallogenic,anomalous information of the prospecting technology and prospecting signs of the western anticline,the three prospecting target areas of Qingping-Shiziding,Dawo-Changping,Xintangzhai-Pogao are delineated,the important anomalies characteristics and the gold points such as Qingping,Changping etc of the above prospecting target areas are discussed in detail,besides that,the further gold prospecting directions of the areas are also analyzed so as to provide some reference for the further gold prospecting work in the area.
引文
[1]骆地伟,姚书振,王成相,等.黔西南卡林型金矿剥蚀程度评价[J].地球科学,2016,41(2):199-217.Luo Diwei,Yao Shuzhen,Wang Chengxiang,et al.Evaluation of denudation degree of Carlin-type gold deposits in Southwest Guizhou Province[J].Earth Science,2016,41(2):199-217.
[2]刘远辉,廖莉萍.黔西南地区Au、Sb成矿与找矿方向探讨[J].贵州地质,2015,32(3):163-170.Liu Yuanhui,Liao Liping.Discussion of Au,Sb mineralization and prospecting direction in Southwest Guizhou Province[J].Guizhou Geology,2015,32(3):163-170.
[3]吴松洋,侯林,丁俊,等.黔西南卡林型金矿矿田控矿构造类型及成矿流体特征[J].岩石学报,2016,32(8):2407-2424.Wu Songyang,Hou Lin,Ding Jun,et al.Ore-controlling structure types and characteristics of ore-forming fluid of the Carlin-type gold orefield in Southwestern Guizhou Province,China[J].Acta Petrologica Sinica,2016,32(8):2407-2424.
[4]胡煜昭,张桂权,王津津,等.黔西南中部卡林型金矿床冲断-褶皱构造的地震勘探证据及意义[J].地学前缘,2012,19(4):63-71.Hu Yuzhao,Zhang Guiquan,Wang Jinjin,et al.Seismic evidence of thrust-fold in Carlin-type gold deposit,Central Southwestern Guizhou Province and its significance[J].Earth Science Frontiers,2012,19(4):63-71.
[5]刘寅,胡凯,韩善楚,等.右江盆地构造和演化及对卡林型金矿床的控制作用[J].高校地质学报,2015,21(1):1-14.Liu Yin,Hu Kai,Han Shanchu,et al.Structural evolution of the Youjiang Basin and its controlling effects on the formation of Carlintype gold deposits[J].Geological Journal of China Universities,2015,21(1):1-14.
[6]毛铁,叶春,杜定全.贵州烂泥沟金矿控矿断层构造地球化学研究[J].矿物岩石地球化学通报,2014,33(1):98-107.Mao Tie,Ye Chun,Du Dingquan.Tectonogeochemistry characteristics of the gold controlling fault in the Lannigou gold deposit,Guizhou Province,China[J].Bulletin of Mineralogy,Petrology and Geochemistry,2014,33(1):98-107.
[7]彭义伟,顾雪祥,吴程赟,等.黔西南灰家堡金矿田有机岩相学和地球化学[J].地学前缘,2013,20(1):117-128.Peng Yiwei,Gu Xuexiang,Wu Chengyun,et al.Organic petrography and geochemistry of the Huijiabao gold field,Southwestern Guizhou Province[J].Earth Science Frontiers,2013,20(1):117-128.
[8]彭义伟,顾雪祥,章永梅,等.黔西南灰家堡金矿田成矿流体来源及演化:流体包裹体和稳定同位素证据[J].矿物岩石地球化学通报,2014,33(5):666-680.Peng Yiwei,Gu Xuexiang,Zhang Yongmei,et al.Source and evolution of ore-forming fluid of the Huijiabao gold field,Southwestern Guizhou Province:evidences from fluid inclusions and stable isotopes[J].Bulletin of Mineralogy,Petrology and Geochemistry,2014,33(5):666-680.
[9]邱小平,孟凡强,于波,等.黔西南灰家堡金矿田成矿构造特征研究[J].矿床地质,2013,32(4):783-793.Qiu Xiaoping,Meng Fanqiang,Yu Bo,et al.Research on metallogenic regulation of gold-rich deposits and features of metallogenetic structure in Huijiabao gold field,Southwest of Guizhou Province,China[J].Mineral Deposits,2013,32(4):783-793.
[10]王泽鹏,夏勇,宋谢炎,等.黔西南灰家堡卡林型金矿田硫铅同位素组成及成矿物质来源研究[J].矿物岩石地球化学通报,2013,32(6):746-752.Wang Zepeng,Xia Yong,Song Xieyan,et al.Sulfur and lead isotopic composition of the Huijiabao Carlin-type gold field and the oreforming material sources in Southwest of Guizhou Province[J].Bulletin of Mineralogy,Petrology and Geochemistry,2013,32(6):746-752.
[11]刘帅,彭进,刘建中,等.贵州水银洞金矿矿层矿化分析与深部预测[J].高校地质学报,2016,22(1):66-73.Liu Shuai,Peng Jin,Liu Jianzhong,et al.Analysis of mineralization and prospecting of deep gold deposit in Shuiyindong,Guizhou Province[J].Geological Journal of China Universities,2016,22(1):66-73.
[12]陈世委,孙军,付斌,等.黔西南泥堡金矿含矿岩系元素地球化学特征[J].矿物岩石地球化学通报,2013,32(5):591-598.Chen Shiwei,Sun Jun,Fu Bin,et al.Geochemical characteristics of ore-bearing rock series in the Nibao gold deposit,SW Guizhou Province[J].Bulletin of Mineralogy,Petrology and Geochemistry,2013,32(5):591-598.
[13]郑禄林,杨瑞东,刘建中,等.黔西南泥堡金矿床大型隐伏金矿体地质特征研究[J].地质与勘探,2014,50(4):689-699.Zheng Lulin,Yang Ruidong,Liu Jianzhong,et al.Geological features of a large concealed gold orebody in the Nibao gold deposit,Southwestern Guizhou Province[J].Geology and Exploration,2014,50(4):689-699.
[14]盛响元,朱笑青,李晓霞,等.贵州泥堡卡林型金矿床的黄铁矿标型特征与成矿物质来源[J].矿物学报,2016,36(4):563-570.Sheng Xiangyuan,Zhu Xiaoqing,Li Xiaoxia,et al.Typomorphic characteristics of pyrite and source of ore-forming materials in Nibao Carlin type gold deposit,Guizhou Province,China[J].Acta Mineralogica Sinica,2016,36(4):563-570.
[15]董光贵.黔西南塘新寨金矿床地质特征及找矿潜力分析[J].矿产与地质,2007,21(3):275-277.Dong Guanggui.Geological characteristics and ore potential of Tangxinzhai gold deposit,Southwest Guizhou Province[J].Mineral Resources and Geology,2007,21(3):275-277.
[16]吴程赟,顾雪祥,刘丽,等.贵州丫他卡林型金矿床流体包裹体特征及其成矿意义[J].现代地质,2012,26(2):277-285.Wu Chenyun,Gu Xuexiang,Liu Li,et al.Fluid inclusion characteristics of Yata Carlin-type gold deposit,Guizhou Province and its metallogenic significance[J].Geoscience,2012,26(2):277-285.
[17]潘谋成,胡凯,曹剑,等.黔西南簸箕田卡林型金矿中含砷黄铁矿和毒砂的赋金特征研究[J].高校地质学报,2013,19(2):293-306.Pan Moucheng,Hu Kai,Cao Jian,et al.Gold-bearing characteristics of arsenian pyrites and arsenopyrites in the Bojitian Carlin-type gold deposits,Southwestern Guizhou Province,Southwest China[J].Geological Journal of China Universities,2013,19(2):293-306.
[18]张贞翔,程国繁,何英,等.黔西南板昌逆冲推覆构造特征及其控矿作用研究[J].黄金,2014,35(7):21-26.Zhang Zhenxiang,Cheng Guofan,He Ying,et al.Characteristics of Banchang thrust nappe structure in Southwest Guizhou Province and study on its ore-controlling factors[J].Gold,2014,35(7):21-26.
[19]吴松洋,丁俊,陈明,等.贵州戈塘金矿滑脱构造及其与成矿的关系[J].金属矿山,2014(7):106-109.Wu Songyang,Ding Jun,Chen Min,et al.Decollement structures and its relationship with mineralization in Getang gold deposit in Guizhou Province[J].Metal Mine,2014(7):106-109.
[20]郑禄林,王兰香,王甘露.黔西南台地相区金矿构造蚀变体稀土元素特征[J].金属矿山,2014(10):122-125.Zheng Lulin,Wang Lanxiang,Wang Ganlu.REE characteristic of structure alteration rocks in tableland lithofacies area,Southwestern Guizhou Province[J].Metal Mine,2014(10):122-125.
[21]Gu X X,Zhang Y M,Li B H,et al.Hydrocarbon and ore-bearing basinal fluids:a possible link between gold mineralization and hydrocarbon accumulation in the Youjiang Basin,South China[J].Mineralium Deposita,2012,47(6):663-682.
[22]刘寅,胡凯,韩善楚,等.黔西南卡林型金矿床有机质特征及其与矿床形成关系[J].地球化学,2016,45(3):281-302.Liu Yin,Hu Kai,Han Shanchu,et al.The characteristics of organic matter and its relationship with the formation of Carlin-type gold deposits in Southwest Guizhou Province[J].Geochimica,2016,45(3):281-302.
[23]顾雪祥,章永梅,吴程赟,等.黔西南卡林型金矿床与古油藏的成因联系:有机岩相学证据[J].地学前缘,2013,20(1):92-106.Gu Xuexiang,Zhang Yongmei,Wu Chengyun,et al.The genetic relationship between Carlin-type gold deposits and paleopetroleum reservoirs in SW Guizhou Province,China:evidence from organic petrography[J].Earth Science Frontiers,2013,20(1):92-106.
[24]王砚耕,王立亭,张明发,等.南盘江地区浅层地壳结构与金矿分布模式[J].贵州地质,1995,12(2):91-95.Wang Yan'geng,Wang Liting,Zhang Mingfa,et al.Texture of the upper crust and pattern of the disseminated gold deposits distributed in Nanpanjiang Area[J].Guizhou Geology,1995,12(2):91-95.
[2]刘远辉,廖莉萍.黔西南地区Au、Sb成矿与找矿方向探讨[J].贵州地质,2015,32(3):163-170.Liu Yuanhui,Liao Liping.Discussion of Au,Sb mineralization and prospecting direction in Southwest Guizhou Province[J].Guizhou Geology,2015,32(3):163-170.
[3]吴松洋,侯林,丁俊,等.黔西南卡林型金矿矿田控矿构造类型及成矿流体特征[J].岩石学报,2016,32(8):2407-2424.Wu Songyang,Hou Lin,Ding Jun,et al.Ore-controlling structure types and characteristics of ore-forming fluid of the Carlin-type gold orefield in Southwestern Guizhou Province,China[J].Acta Petrologica Sinica,2016,32(8):2407-2424.
[4]胡煜昭,张桂权,王津津,等.黔西南中部卡林型金矿床冲断-褶皱构造的地震勘探证据及意义[J].地学前缘,2012,19(4):63-71.Hu Yuzhao,Zhang Guiquan,Wang Jinjin,et al.Seismic evidence of thrust-fold in Carlin-type gold deposit,Central Southwestern Guizhou Province and its significance[J].Earth Science Frontiers,2012,19(4):63-71.
[5]刘寅,胡凯,韩善楚,等.右江盆地构造和演化及对卡林型金矿床的控制作用[J].高校地质学报,2015,21(1):1-14.Liu Yin,Hu Kai,Han Shanchu,et al.Structural evolution of the Youjiang Basin and its controlling effects on the formation of Carlintype gold deposits[J].Geological Journal of China Universities,2015,21(1):1-14.
[6]毛铁,叶春,杜定全.贵州烂泥沟金矿控矿断层构造地球化学研究[J].矿物岩石地球化学通报,2014,33(1):98-107.Mao Tie,Ye Chun,Du Dingquan.Tectonogeochemistry characteristics of the gold controlling fault in the Lannigou gold deposit,Guizhou Province,China[J].Bulletin of Mineralogy,Petrology and Geochemistry,2014,33(1):98-107.
[7]彭义伟,顾雪祥,吴程赟,等.黔西南灰家堡金矿田有机岩相学和地球化学[J].地学前缘,2013,20(1):117-128.Peng Yiwei,Gu Xuexiang,Wu Chengyun,et al.Organic petrography and geochemistry of the Huijiabao gold field,Southwestern Guizhou Province[J].Earth Science Frontiers,2013,20(1):117-128.
[8]彭义伟,顾雪祥,章永梅,等.黔西南灰家堡金矿田成矿流体来源及演化:流体包裹体和稳定同位素证据[J].矿物岩石地球化学通报,2014,33(5):666-680.Peng Yiwei,Gu Xuexiang,Zhang Yongmei,et al.Source and evolution of ore-forming fluid of the Huijiabao gold field,Southwestern Guizhou Province:evidences from fluid inclusions and stable isotopes[J].Bulletin of Mineralogy,Petrology and Geochemistry,2014,33(5):666-680.
[9]邱小平,孟凡强,于波,等.黔西南灰家堡金矿田成矿构造特征研究[J].矿床地质,2013,32(4):783-793.Qiu Xiaoping,Meng Fanqiang,Yu Bo,et al.Research on metallogenic regulation of gold-rich deposits and features of metallogenetic structure in Huijiabao gold field,Southwest of Guizhou Province,China[J].Mineral Deposits,2013,32(4):783-793.
[10]王泽鹏,夏勇,宋谢炎,等.黔西南灰家堡卡林型金矿田硫铅同位素组成及成矿物质来源研究[J].矿物岩石地球化学通报,2013,32(6):746-752.Wang Zepeng,Xia Yong,Song Xieyan,et al.Sulfur and lead isotopic composition of the Huijiabao Carlin-type gold field and the oreforming material sources in Southwest of Guizhou Province[J].Bulletin of Mineralogy,Petrology and Geochemistry,2013,32(6):746-752.
[11]刘帅,彭进,刘建中,等.贵州水银洞金矿矿层矿化分析与深部预测[J].高校地质学报,2016,22(1):66-73.Liu Shuai,Peng Jin,Liu Jianzhong,et al.Analysis of mineralization and prospecting of deep gold deposit in Shuiyindong,Guizhou Province[J].Geological Journal of China Universities,2016,22(1):66-73.
[12]陈世委,孙军,付斌,等.黔西南泥堡金矿含矿岩系元素地球化学特征[J].矿物岩石地球化学通报,2013,32(5):591-598.Chen Shiwei,Sun Jun,Fu Bin,et al.Geochemical characteristics of ore-bearing rock series in the Nibao gold deposit,SW Guizhou Province[J].Bulletin of Mineralogy,Petrology and Geochemistry,2013,32(5):591-598.
[13]郑禄林,杨瑞东,刘建中,等.黔西南泥堡金矿床大型隐伏金矿体地质特征研究[J].地质与勘探,2014,50(4):689-699.Zheng Lulin,Yang Ruidong,Liu Jianzhong,et al.Geological features of a large concealed gold orebody in the Nibao gold deposit,Southwestern Guizhou Province[J].Geology and Exploration,2014,50(4):689-699.
[14]盛响元,朱笑青,李晓霞,等.贵州泥堡卡林型金矿床的黄铁矿标型特征与成矿物质来源[J].矿物学报,2016,36(4):563-570.Sheng Xiangyuan,Zhu Xiaoqing,Li Xiaoxia,et al.Typomorphic characteristics of pyrite and source of ore-forming materials in Nibao Carlin type gold deposit,Guizhou Province,China[J].Acta Mineralogica Sinica,2016,36(4):563-570.
[15]董光贵.黔西南塘新寨金矿床地质特征及找矿潜力分析[J].矿产与地质,2007,21(3):275-277.Dong Guanggui.Geological characteristics and ore potential of Tangxinzhai gold deposit,Southwest Guizhou Province[J].Mineral Resources and Geology,2007,21(3):275-277.
[16]吴程赟,顾雪祥,刘丽,等.贵州丫他卡林型金矿床流体包裹体特征及其成矿意义[J].现代地质,2012,26(2):277-285.Wu Chenyun,Gu Xuexiang,Liu Li,et al.Fluid inclusion characteristics of Yata Carlin-type gold deposit,Guizhou Province and its metallogenic significance[J].Geoscience,2012,26(2):277-285.
[17]潘谋成,胡凯,曹剑,等.黔西南簸箕田卡林型金矿中含砷黄铁矿和毒砂的赋金特征研究[J].高校地质学报,2013,19(2):293-306.Pan Moucheng,Hu Kai,Cao Jian,et al.Gold-bearing characteristics of arsenian pyrites and arsenopyrites in the Bojitian Carlin-type gold deposits,Southwestern Guizhou Province,Southwest China[J].Geological Journal of China Universities,2013,19(2):293-306.
[18]张贞翔,程国繁,何英,等.黔西南板昌逆冲推覆构造特征及其控矿作用研究[J].黄金,2014,35(7):21-26.Zhang Zhenxiang,Cheng Guofan,He Ying,et al.Characteristics of Banchang thrust nappe structure in Southwest Guizhou Province and study on its ore-controlling factors[J].Gold,2014,35(7):21-26.
[19]吴松洋,丁俊,陈明,等.贵州戈塘金矿滑脱构造及其与成矿的关系[J].金属矿山,2014(7):106-109.Wu Songyang,Ding Jun,Chen Min,et al.Decollement structures and its relationship with mineralization in Getang gold deposit in Guizhou Province[J].Metal Mine,2014(7):106-109.
[20]郑禄林,王兰香,王甘露.黔西南台地相区金矿构造蚀变体稀土元素特征[J].金属矿山,2014(10):122-125.Zheng Lulin,Wang Lanxiang,Wang Ganlu.REE characteristic of structure alteration rocks in tableland lithofacies area,Southwestern Guizhou Province[J].Metal Mine,2014(10):122-125.
[21]Gu X X,Zhang Y M,Li B H,et al.Hydrocarbon and ore-bearing basinal fluids:a possible link between gold mineralization and hydrocarbon accumulation in the Youjiang Basin,South China[J].Mineralium Deposita,2012,47(6):663-682.
[22]刘寅,胡凯,韩善楚,等.黔西南卡林型金矿床有机质特征及其与矿床形成关系[J].地球化学,2016,45(3):281-302.Liu Yin,Hu Kai,Han Shanchu,et al.The characteristics of organic matter and its relationship with the formation of Carlin-type gold deposits in Southwest Guizhou Province[J].Geochimica,2016,45(3):281-302.
[23]顾雪祥,章永梅,吴程赟,等.黔西南卡林型金矿床与古油藏的成因联系:有机岩相学证据[J].地学前缘,2013,20(1):92-106.Gu Xuexiang,Zhang Yongmei,Wu Chengyun,et al.The genetic relationship between Carlin-type gold deposits and paleopetroleum reservoirs in SW Guizhou Province,China:evidence from organic petrography[J].Earth Science Frontiers,2013,20(1):92-106.
[24]王砚耕,王立亭,张明发,等.南盘江地区浅层地壳结构与金矿分布模式[J].贵州地质,1995,12(2):91-95.Wang Yan'geng,Wang Liting,Zhang Mingfa,et al.Texture of the upper crust and pattern of the disseminated gold deposits distributed in Nanpanjiang Area[J].Guizhou Geology,1995,12(2):91-95.