贵州省猪拱塘超大型铅锌矿床的发现及其找矿意义
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摘要
贵州省猪拱塘铅锌矿床位于川-滇-黔铅锌多金属成矿域东侧、紫云—垭都断裂带北西段。近年来成功运用新理论、新方法正确指导找矿勘查,发现并基本查明该矿床为一超大型铅锌矿床。通过对猪拱塘铅锌矿深部找矿工作发现,该矿床主要受NW向垭都—蟒硐断裂构造控制,容矿岩石为泥盆系上统—二叠系中统灰岩、泥灰岩、白云岩及白云质灰岩,矿体呈透镜体状、脉状和似层状赋存于断裂破碎带中,矿体在平面上部分叠合,剖面上形成平行分布的错列式矿体,具隐伏、陡倾、埋藏深、富矿段相对集中、有用组分多等特点。区内断裂构造、容矿岩性、围岩蚀变和物化探异常等可作为找矿标志。通过对猪拱塘铅锌矿床地质特征、控矿因素和找矿标志等方面的研究,认为其潜在经济价值巨大,对区域内铅锌矿找矿以及建立黔西北铅锌矿资源基地和深加工基地具有重要指导意义,为黔西北地区铅锌找矿指明了方向。这一矿床的发现对乌蒙山集中连片特困区脱贫攻坚具有深远的影响。
The Zhugongtang Pb-Zn deposit is located in eastern Sichuan-Yunnan-Guizhou lead-zinc polymetallic metallogenic region and northwestern Ziyun-Yadu fault zone. In recent years, new theories and methods have been successfully used to guide the prospecting and exploration, and this deposit has been discovered and basically identified as a super large lead-zinc deposit. According to the deep prospecting of Zhugongtang Pb-Zn deposit, this deposit was mainly controlled by NW Yadu-Mangdong fracture. And the ore host rocks were the limestone, marl, dolomite and dolomite limestone from Upper Devonian to Middle Permian. The ore bodies occurred with the shape of lenticular, veins and layers in the fractured zone, partially overlapped in the plan and parallelly staggered on the section. These ore bodies were hidden, steeply and deeply buried, with relatively concentrated ore-rich section and abundant useful components. The fault structure, ore lithology, wall rock alteration, and physicochemical exploration anomaly can be used as prospecting criteria. Through the study of the geological characters, ore-controlling factors and prospecting criteria of Zhugongtang Pb-Zn deposit, the authors thought that this area has huge potential economic value, and has important guiding significance for the regional Pb-Zn deposit prospecting, and Pb-Zn resource base and deep processing base establishment. It also points out the direction for the Pb-Zn prospecting in northwestern Guizhou Province. The discovery of this deposit has a profound impact on the poverty alleviation in the contiguous poverty-stricken areas of Wumeng Mountain.
The Zhugongtang Pb-Zn deposit is located in eastern Sichuan-Yunnan-Guizhou lead-zinc polymetallic metallogenic region and northwestern Ziyun-Yadu fault zone. In recent years, new theories and methods have been successfully used to guide the prospecting and exploration, and this deposit has been discovered and basically identified as a super large lead-zinc deposit. According to the deep prospecting of Zhugongtang Pb-Zn deposit, this deposit was mainly controlled by NW Yadu-Mangdong fracture. And the ore host rocks were the limestone, marl, dolomite and dolomite limestone from Upper Devonian to Middle Permian. The ore bodies occurred with the shape of lenticular, veins and layers in the fractured zone, partially overlapped in the plan and parallelly staggered on the section. These ore bodies were hidden, steeply and deeply buried, with relatively concentrated ore-rich section and abundant useful components. The fault structure, ore lithology, wall rock alteration, and physicochemical exploration anomaly can be used as prospecting criteria. Through the study of the geological characters, ore-controlling factors and prospecting criteria of Zhugongtang Pb-Zn deposit, the authors thought that this area has huge potential economic value, and has important guiding significance for the regional Pb-Zn deposit prospecting, and Pb-Zn resource base and deep processing base establishment. It also points out the direction for the Pb-Zn prospecting in northwestern Guizhou Province. The discovery of this deposit has a profound impact on the poverty alleviation in the contiguous poverty-stricken areas of Wumeng Mountain.
引文
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[19] 秦建华,廖震文,朱斯豹,等.川滇黔相邻区碳酸盐岩容矿铅锌矿成矿特征[J].沉积与特提斯地质,2016,36(1):1-13.
[20] 肖龙.汇聚板块边缘的金矿成矿作用[J].地质科技情报,2000,19(1):46-50.
[21] 毛健全,张启厚,毛德明,等.水城断陷构造演化及铅锌矿研究[M].贵阳:贵州科技出版社,1998:104-129.
[22] 叶天竺,吕志成,庞振山,等.勘查区找矿预测理论与方法:总论[M].北京:地质出版社,2014:424-548.
[2] 杨德传,汪磊,李再勇.激电中梯测量在晴隆丁头山铅锌矿找矿中的应用[J].中国地质调查,2017,4(6):89-98.
[3] 付胜云,李泽泓,贺春平,等.湖南凤凰地区地质构造与汞铅锌矿成矿关系研究[J].中国地质调查,2017,4(6):15-23.
[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,2008:5-30.
[5] 何良伦,吴大文,赵锋,等.贵州省赫章县猪拱塘铅锌矿详查报告[R].2018:207-213.
[6] 韩润生,陈进,李元,等.云南会泽麒麟厂铅锌矿床构造地球化学及定位预测[J].矿物学报,2001,21(4):667-673.
[7] 韩润生,刘丛强,黄智龙,等.论云南会泽富铅锌矿床成矿模式[J].矿物学报,2001,21(4):674-680.
[8] 韩润生,陈进,李元,等.云南会泽铅锌矿床构造控矿规律及其隐伏矿预测[J].矿物学报,2001,21(2):265-269.
[9] 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.
[10] 韩润生,王峰,赵高山,等.滇东北矿集区昭通毛坪铅锌矿床深部找矿新进展[J].地学前缘,2010,17(3):275.
[11] 韩润生,邹海俊,胡彬,等.云南毛坪铅锌(银、锗)矿床流体包裹体特征及成矿流体来源[J].岩石学报,2007,23(9):2109-2118.
[12] 毛德明.贵州赫章天桥铅锌矿床围岩的氧、碳同位素研究[J].贵州工业大学学报(自然科学版),2000,29(2):8-11.
[13] 张荣强,周雁,汪新伟,等.贵州西南部威-紫-罗断裂带构造特征及演化[J].地质力学学报,2009,15(2):179-189.
[14] 程国繁,徐安全.试论“威宁—紫云”北西向构造带变形特征[J].贵州地质,1998,15(4):311-320.
[15] 金中国,黄智龙.黔西北垭都—蟒硐断裂带铅锌成矿地质特征及找矿潜力分析[J].地质与勘探,2009,45(2):20-26.
[16] 郑传仑.黔西北铅锌矿的矿质来源[J].桂林冶金地质学院学报,1994,14(2):113-124.
[17] 钱建平.黔西北威宁—水城铅锌矿带动力成矿作用研究[J].地质地球化学,2001,29(3):134-139.
[18] 唐森宁.黔西北滇东北层控铅锌矿床特征及其成矿模式[J].地质与勘探,1984,20(12):2-8.
[19] 秦建华,廖震文,朱斯豹,等.川滇黔相邻区碳酸盐岩容矿铅锌矿成矿特征[J].沉积与特提斯地质,2016,36(1):1-13.
[20] 肖龙.汇聚板块边缘的金矿成矿作用[J].地质科技情报,2000,19(1):46-50.
[21] 毛健全,张启厚,毛德明,等.水城断陷构造演化及铅锌矿研究[M].贵阳:贵州科技出版社,1998:104-129.
[22] 叶天竺,吕志成,庞振山,等.勘查区找矿预测理论与方法:总论[M].北京:地质出版社,2014:424-548.
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