黔西北五指山地区叠加构造变形特征对铅锌矿成矿的控制
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摘要
五指山铅锌矿区位于贵州省普定县与织金县交界区域,大地构造位于扬子板块中部、江南造山带西缘。野外构造研究表明,受早古生代加里东构造运动的控制与影响,矿区内震旦系—下古生界构造变形与上古生界—中生界的构造变形明显不同。震旦系—下古生界构造线近东西向,发育近东西向平缓褶皱、南倾或北倾劈理,显示近南北向的挤压收缩变形。震旦系—下古生界区内发育两组南北、北西向陡倾断层,断层明显受限制而不穿越晚古生代之后的地层。发育在震旦系—下古生界内的层间滑动与断层活动控制着铅锌矿的分布。晚古生代之后区域构造应力场发生转变,由早期近南北向的挤压收缩转为早燕山期SEE向NWW挤压逆冲,由此对震旦纪—早古生代变形进行叠加与改造,宏观上形成以NE走向为特征的区域构造格局。后期形成的褶皱轴面主要向SEE倾斜,断层向NWW逆冲,与早期变形呈斜跨式叠加。燕山期断层活动促进了铅锌矿的迁移与聚集。
The Wuzhishan lead-zinc ore district is located at the junction of Puding and Zhijin in Guizhou Province. The district is tectonically situated at the center of the Yangtze craton,close to the western margin of the Jiangnan orogen. Based on the field structural research,this study found that clear differences between the Sinian-Early Paleozoic and Late Paleozoic-Mesozoic structural deformation features,which were controlled or influenced by the Early Paleozoic Caledonian tectonic movement. The structural line of Sinian-Early Paleozoic isEW-trending,gently EW folded with south-or north-dipping cleavages,which shows the NS-trending compressive deformation. Two sets of NS-and NW-trending high-pitched faults were developed in the Sinian-Early Paleozoic,which were obviously restricted that did not crosscut the post-Late Paleozoic sequences. Sinian-Early Paleozoic interlayer gliding and faulting activities control the distribution of lead-zinc orebodies. Regional tectonic stress field was likely changed after the Late Paleozoic,from early NS-trending compression to early Yanshanian WNW-trending( ESE-dipping) thrusting,which superposed and deformed the Sinian-Early Paleozoic structures,and formed the regional NE-trending tectonic pattern. The late-stage fold axis dips mainly to ESE and the faults thrust to WNW,obliquely superposed on the early deformation. The Yanshanian faulting may have promoted the migration and enrichment of the lead-zinc ores.
The Wuzhishan lead-zinc ore district is located at the junction of Puding and Zhijin in Guizhou Province. The district is tectonically situated at the center of the Yangtze craton,close to the western margin of the Jiangnan orogen. Based on the field structural research,this study found that clear differences between the Sinian-Early Paleozoic and Late Paleozoic-Mesozoic structural deformation features,which were controlled or influenced by the Early Paleozoic Caledonian tectonic movement. The structural line of Sinian-Early Paleozoic isEW-trending,gently EW folded with south-or north-dipping cleavages,which shows the NS-trending compressive deformation. Two sets of NS-and NW-trending high-pitched faults were developed in the Sinian-Early Paleozoic,which were obviously restricted that did not crosscut the post-Late Paleozoic sequences. Sinian-Early Paleozoic interlayer gliding and faulting activities control the distribution of lead-zinc orebodies. Regional tectonic stress field was likely changed after the Late Paleozoic,from early NS-trending compression to early Yanshanian WNW-trending( ESE-dipping) thrusting,which superposed and deformed the Sinian-Early Paleozoic structures,and formed the regional NE-trending tectonic pattern. The late-stage fold axis dips mainly to ESE and the faults thrust to WNW,obliquely superposed on the early deformation. The Yanshanian faulting may have promoted the migration and enrichment of the lead-zinc ores.
引文
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[11]陈旭,戎嘉余,周志毅,等.上扬子区奥陶—志留纪之交的黔中隆起和宜昌上升[J].科学通报,2001,46(2):1052-1056.
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[14]刘彦良,杨坤光,邓新.镇远—贵阳断裂带活动历时及其对黔中隆起演化的制约[J].地质科技情报,2009,28(3):41-47.
[15]徐政语,姚根顺,郭庆新,等.黔南坳陷构造变形特征及其成因解析[J].大地构造与成矿学,2010,34(1):20-30.
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[18]杨坤光,李学刚,戴传固,等.断层调整与控制作用下的叠加构造变形:以贵州地区燕山期构造为例[J].地质科技情报,2012,31(5):50-56.
[19]黄林,赵征,刘金海,等.黔西北五指山背斜矿集区铅锌矿成矿远景浅析[J].贵州地质,2006,23(3):203-205,210.
[20]谭华.贵州五指山地区铅锌矿地质特征及找矿远景[J].贵州地质,2007,24(4):253-257.
[21]谭华,王国荣,兰安平.贵州省织金县杜家桥铅锌矿床地质特征及成矿规律浅析[J].贵州地质,2012,29(3):169-172.
[22]陈国勇,王亮,范玉梅,等.贵州五指山铅锌矿田深部找矿远景分析[J].地质与勘探,2015,51(5):859-869.
[23]陆朝武.黔西北五指山矿集区金坡大型铅锌矿矿床成因及成矿模式[D].桂林:桂林理工大学,2011.
[24]杨晓飞.贵州省五指山地区铅锌矿床地质特征及成因初探[J].矿物学报,2013,33(增刊):527-528.
[25]彭松,金中国,林贵生,等.贵州五指山铅锌矿区控矿因素及成矿模式研究——以那雍枝矿床为例[J].矿产勘查,2016,7(3):463-470.
[26]朱路艳,苏文超,沈能平,等.黔西北地区铅锌矿床流体包裹体与硫同位素地球化学研究[J].岩石学报,2016,32(11):3431-3440.
[27]陈伟,孔志岗,刘凤祥,等.贵州那雍枝铅锌矿床地质、地球化学及矿床成因[J].地质学报,2017,91(6):1269-1284.
[28]金灿海,李坤,黄林,等.黔西北那雍枝铅锌矿硫同位素组成特征及成矿物质来源[J].矿物岩石,2015,35(3):81-88.
[29]秦守荣,张明发,龚梅,等.贵州的印支运动[J].沉积与特提斯地质,2009,29(2):100-103.
[30]ANDERSON E M.The Dynamics of Faulting[M].2nd Edition.Edinburgh:Oliver and Boyd,1951:1-10.
[31]韩润生,胡煜昭,王学琨,等.滇东北富锗银铅锌多金属矿集区矿床模型[J].地质学报,2012,86(2):280-294.
[32]吕豫辉,韩润生,任涛,等.滇东北矿集区云南富乐厂铅锌矿区断裂构造控矿特征及其与成矿的关系[J].现代地质,2015,29(3):563-575.
[33]王建飞,许东,尹光候.云南金顶铅锌矿成矿流体特征与成矿作用[J].现代地质,2014,28(4):701-710.
[34]蔡应雄,杨红梅,段瑞春,等.湘西—黔东下寒武统铅锌矿床流体包裹体和硫、铅、碳同位素地球化学特征[J].现代地质,2014,28(1):29-41.
[2]ZHOU C X,WEI C S,GUO J Y,et al.The source of metals in the Qilinchang Zn-Pb deposit,northeastern Yunnan,China:Nb-Sr isotope constraints[J].Economic Geology,2001,96(3):583-598.
[3]黄智龙,胡瑞忠,苏文超,等.西南大面积低温成矿域:研究意义、历史及新进展[J].矿物学报,2011,32(3):309-314.
[4]金中国.黔西北地区铅锌矿控矿因素、成矿规律与找矿预测[M].北京:冶金工业出版社,2008:1-105.
[5]金中国,周家喜,黄智龙,等.贵州普定那雍枝铅锌矿矿床成因:S和原位Pb同位素证据[J].岩石学报,2016,32(11):3441-3455.
[6]ZHOU J X,HUANG Z L,ZHOU M F,et al.Zinc,sulfur and lead isotopic variations in carbonate-hosted Pb-Zn sulfide deposits,Southwest China[J].Ore Geology Reviews,2014,58:41-54.
[7]胡瑞忠,毛景文,华仁民,等.华南陆块陆内成矿作用[M].北京:科学出版社,2015:387-592.
[8]HU R Z,ZHOU M F.Multiple Mesozoic mineralization events in South China:An introduction to the matic issue[J].Mineralium Deposita,2012,47(6):579-588.
[9]王峰,陈进,罗大锋.川滇黔接壤区铅锌矿产资源潜力与找矿规律分析[M].北京:科学出版社,2015:1-329.
[10]杨坤光,李学刚,戴传固,等.黔东南隔槽式褶皱成因分析[J].地学前缘,2012,19(5):53-60.
[11]陈旭,戎嘉余,周志毅,等.上扬子区奥陶—志留纪之交的黔中隆起和宜昌上升[J].科学通报,2001,46(2):1052-1056.
[12]崔金栋.黔中隆起及周缘构造演化的沉积响应[D].长沙:中南大学,2013.
[13]万桂梅,汤良杰,郭彤楼,等.黔中隆起及邻区分带性变形特征[J].地质学报,2008,82(3):316-320.
[14]刘彦良,杨坤光,邓新.镇远—贵阳断裂带活动历时及其对黔中隆起演化的制约[J].地质科技情报,2009,28(3):41-47.
[15]徐政语,姚根顺,郭庆新,等.黔南坳陷构造变形特征及其成因解析[J].大地构造与成矿学,2010,34(1):20-30.
[16]邓新,杨坤光,刘彦良,等.黔中隆起性质及其构造演化[J].地学前缘,2010,17(3):79-89.
[17]牛新生,冯常茂,刘进.黔中隆起的形成时间及形成机制探讨[J].海相油气地质,2007(2):46-50.
[18]杨坤光,李学刚,戴传固,等.断层调整与控制作用下的叠加构造变形:以贵州地区燕山期构造为例[J].地质科技情报,2012,31(5):50-56.
[19]黄林,赵征,刘金海,等.黔西北五指山背斜矿集区铅锌矿成矿远景浅析[J].贵州地质,2006,23(3):203-205,210.
[20]谭华.贵州五指山地区铅锌矿地质特征及找矿远景[J].贵州地质,2007,24(4):253-257.
[21]谭华,王国荣,兰安平.贵州省织金县杜家桥铅锌矿床地质特征及成矿规律浅析[J].贵州地质,2012,29(3):169-172.
[22]陈国勇,王亮,范玉梅,等.贵州五指山铅锌矿田深部找矿远景分析[J].地质与勘探,2015,51(5):859-869.
[23]陆朝武.黔西北五指山矿集区金坡大型铅锌矿矿床成因及成矿模式[D].桂林:桂林理工大学,2011.
[24]杨晓飞.贵州省五指山地区铅锌矿床地质特征及成因初探[J].矿物学报,2013,33(增刊):527-528.
[25]彭松,金中国,林贵生,等.贵州五指山铅锌矿区控矿因素及成矿模式研究——以那雍枝矿床为例[J].矿产勘查,2016,7(3):463-470.
[26]朱路艳,苏文超,沈能平,等.黔西北地区铅锌矿床流体包裹体与硫同位素地球化学研究[J].岩石学报,2016,32(11):3431-3440.
[27]陈伟,孔志岗,刘凤祥,等.贵州那雍枝铅锌矿床地质、地球化学及矿床成因[J].地质学报,2017,91(6):1269-1284.
[28]金灿海,李坤,黄林,等.黔西北那雍枝铅锌矿硫同位素组成特征及成矿物质来源[J].矿物岩石,2015,35(3):81-88.
[29]秦守荣,张明发,龚梅,等.贵州的印支运动[J].沉积与特提斯地质,2009,29(2):100-103.
[30]ANDERSON E M.The Dynamics of Faulting[M].2nd Edition.Edinburgh:Oliver and Boyd,1951:1-10.
[31]韩润生,胡煜昭,王学琨,等.滇东北富锗银铅锌多金属矿集区矿床模型[J].地质学报,2012,86(2):280-294.
[32]吕豫辉,韩润生,任涛,等.滇东北矿集区云南富乐厂铅锌矿区断裂构造控矿特征及其与成矿的关系[J].现代地质,2015,29(3):563-575.
[33]王建飞,许东,尹光候.云南金顶铅锌矿成矿流体特征与成矿作用[J].现代地质,2014,28(4):701-710.
[34]蔡应雄,杨红梅,段瑞春,等.湘西—黔东下寒武统铅锌矿床流体包裹体和硫、铅、碳同位素地球化学特征[J].现代地质,2014,28(1):29-41.
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