On the Geological Characteristics and Genesis of Yangwuchang Tungsten (Gold) Deposit in the Yangxie-Fengbeihe Metallogenetic Belt, East Qinling
-
摘要: 杨屋场小型钨（金）矿床位于东秦岭杨斜-丰北河金钨成矿带东段。通过野外调查、岩矿鉴定及综合研究，查明了该矿床的地质特征与控矿因素，探讨了矿床成因，初步建立其“三位一体”找矿预测模型，可为杨斜地区钨金找矿提供一定的借鉴。研究表明，矿体赋存于商丹断裂带内北东—北北东走向的缓倾断裂，围岩为新元古代杨斜片麻岩套。矿石金属矿物为黄铁矿、黑钨矿、白钨矿、黄铜矿、闪锌矿、方铅矿及黝铜矿等中-高温组合。成矿过程包括热液成矿期与表生期，前者可划分为石英-细粒黄铁矿、石英-黑钨矿-白钨矿-多金属硫化物和石英-方解石-绢云母3个成矿阶段，围岩蚀变以硅化、黄铁矿化和白云母化为主。矿床的成矿作用受印支期花岗岩、断裂构造及围岩控制，成因应属于岩浆期后热液矿床。
-
关键词:
- 地质特征 /
- 矿床成因 /
- “三位一体”找矿预测 /
- 杨屋场钨(金)矿床 /
- 东秦岭
Abstract: The Yangwuchang tungsten (gold) deposit is located in the eastern part of the Yangxie-Fengbeihe gold-tungsten metallogenetic belt, east Qinling. Through field survey, ore identification and comprehensive studies, this paper clarified the geological characteristics and ore-controlling factors of the deposit, discussed genesis of ore deposit, and preliminarily established the trinity prospecting prediction model, which provides a direction for further W-Au prospecting in Yangxie area. The results show that the ore bodies occur in the NE-NEE faults in the Shangdanfault zone, and are hosted in the Neoproterozoic Yangxie gneiss suite. The metal minerals are medium-high temperature mineral assemblages of pyrite, wolframite, scheelite, chalcopyrite, sphalerite, galena and tetrahedrite. Ore-forming process includes hydrothermal mineralization and supergene periods. The former can be divided into three metallogenic stages: quartz-fine-grained pyrite stage, quartz-wolframite-scheelite-polymetallic sulfide stage and quartz-calcite-sericite stage. Wall-rock alteration is mainly silicification, pyritization and muscovitization. The genesis of this deposit is considered to be a post-magmatic hydrothermal deposit, controlled by the Indosinian granite, faults and wall rock. -
-
陈国忠,龚全胜, 梁志录,等.西秦岭甘肃段特大型金矿床的地质地球化学特征及其成岩成矿年龄[J]. 西北地质, 2017, 50(4):91-104.
CHEN Guozhong, GONG Quansheng, LIANG Zhilu, et al. Geological,geochemical characteristics and diagenetic age of the super-large gold deposits in Western Qinling, Gansu province[J]. Northwestern Geology, 2017, 50(4):91-104.
陈衍景. 秦岭印支期构造背景、岩浆活动及成矿作用[J]. 中国地质, 2010, 37(4):854-865.
CHEN Yanjing. Indosinian tectonic setting, magmatism and metallogenesis in Qinling Orogen, central China[J]. Geology in China, 2010, 37(4):854-865.
陈毓川, 王平安, 秦克令, 等. 秦岭地区主要金属矿床成矿系列的划分及区域成矿规律探讨[J].矿床地质, 1994, 13(4):289-298.
CHEN Yuchuan, WANG Pingan, QIN Keling, et al. Metallogenic series of main ore deposits and regional metallogeny in the Qinling area[J]. Mineral Deposits, 1994, 13(4):289-298.
丁坤,梁婷,王瑞廷,等.陕南勉略阳地区陈家坝铜铅锌多金属矿床稀土元素地球化学特征[J].西北地质, 2018, 51(3):93-104.
DING Kun, LIANG Ting, WANG Ruiting, et al. REE characteristics of the Chenjiaba Cu-Pb-Zn polymetallic deposit in Mian-Lue-Yang area, Southern Shaanxi province[J]. Northwestern Geology, 2018, 51(3):93-104.
弓虎军, 朱赖民, 孙博亚, 等. 南秦岭地体东江口花岗岩及其基性包体的锆石U-Pb年龄和Hf同位素组成[J].岩石学报, 2009a, 25(11):3029-3042.
GONG Hujun, ZHU Laimin, SUN Boya, et al. Zircon U-Pb ages and Hf isotopic composition of the Dongjiankou graniticpluton and its mafic enclaves in the South Qinling terrain[J]. Acta Petrologica Sinica, 2009a, 25(11):3029-3042.
弓虎军, 朱赖民, 孙博亚, 等. 南秦岭沙河湾、曹坪和柞水岩体锆石U-Pb年龄、Hf同位素特征及其地质意义[J].岩石学报, 2009b, 25(2):248-264.
GONG Hujun, ZHU Laimin, SUN Boya, et al. Zircon U-Pb ages and Hf isotope characteristics and their geological significance of the Shahewan, Caoping and Zhashui granitic plutons in the South Qinling orogen[J]. Acta Petrologica Sinica, 2009b, 25(2):248-264.
顾雪祥, 李葆华, 章永梅, 等. 矿床学研究方法及应用[M]. 北京:地质出版社, 2019:1-815.
GU Xuexiang, LI Baohua, ZHANG Yongmei, et al. Research methods of ore geology and their applications[M]. Beijing:Geological Publishing House, 2019.
胡健民, 崔建堂, 孟庆任, 等. 秦岭柞水岩体锆石U-Pb年龄及其地质意义[J].地质评论, 2004, 50(3):323-329.
HU Jianmin, CUI Jiantang, MENG Qingren, et al. The U-Pb age of zircons separated from the Zhashui granite in Qinling orogen and its significance[J]. Geological Review, 2004, 50(3):323-329.
李曙光, HART SR, 郑双根, 等. 中国华北-华南陆块碰撞时代的钐-钕同位素年龄证据[J].中国科学(B辑), 1989, (3):312-319.
LI Shuguang, HART S R, ZHENG Shuanggen, et al. The collision time of North China Plate and South China Plate:evidence from Sm-Nd ages[J]. Science in China (Series B), 1989,(3):312-319.
李曙光, 陈移之, 张宗清, 等. 北秦岭拉圾庙苏长辉长岩的痕量元素和Sr, Nd同位素地球化学[J].地质学报, 1993, 67(4):310-322.
LI Shuguang, CHEN Yizhi, ZHANG Zongqing, et al. Trace elements and Sr, Nd isotopic geochemistry of the Lajimiao norite-gabbro from the North Qinling belt[J]. Acta Geologica Sinica, 1993, 67(4):310-322.
李万生. 杨斜断裂以南元古代古侵入体的厘定及其地质意义[J].陕西地质, 1996, 14(2):22-32.
LI Wansheng.Determination of the Proterozoic metamorphosedintrusives to the south of the Yangxie fracture and the significance in geology[J]. Geology of Shaanxi, 1996, 14(2):22-32.
刘春花, 吴才来, 郜源红, 等. 南秦岭东江口、柞水和梨园堂花岗岩类锆石LA-ICP-MS U-Pb年代学与锆石Lu-Hf同位素组成[J].岩石学报, 2014, 30(8):2402-2420.
LIU Chunhua, WU Cailai, GAO Yuanhong, et al. Zircon LA-ICP-MS U-Pb dating and Lu-Hf isotopic system of Dongjiangkou, Zhashui, and Liyuantang granitoid intrusions, South Qinling belt, central China[J]. Acta Petrologica Sinica, 2014, 30(8):2402-2420.
刘春花, 吴才来, 郜源红, 等. 南秦岭麻池河乡和沙河湾花岗岩体锆石LA-ICP-MS U-Pb年代学及Lu-Hf同位素组成[J].地学前缘, 2013, 20(5):36-56.
LIU Chunhua, WU Cailai, GAO Yuanhong, et al. Zircon LA-ICP-MS U-Pb dating and Lu-Hf isotopic system of Machihe country and Shahewan granitoid rock masses, South Qinling belt, central China[J]. Earth Science Frontiers, 2013, 20 (5):36-56.
刘军锋, 孙勇, 孙卫东. 秦岭拉鸡庙镁铁质岩体锆石LA-ICP-MS年代学研究[J].岩石学报, 2009, 25(2):320-330.
LIU Junfeng, SUN Yong, SUN Weidong. LA-ICP-MS zircon dating from the Lajimiao mafic complex in the Qinling orogenic belt[J]. Acta Petrologica Sinica, 2009, 25(2):320-330.
刘树文, 杨朋涛, 李秋根, 等. 秦岭中段印支期花岗质岩浆作用与造山过程[J].吉林大学学报(地球科学版), 2011, 41(6):1928-1943.
LIU Shuwen,YANGPengtao, LI Qiugen, et al. Indosiniangranitoids and orogenic processes in the middle segment of the Qinling orogen, China[J]. Journal of Jilin University(Earth Science Edition), 2011, 41(6):1928-1943.
卢欣祥, 李明立, 王卫, 等. 秦岭造山带的印支运动及印支期成矿作用[J].矿床地质, 2008, 27(6):762-773.
LU Xinxiang, LI Mingli, WANG Wei, et al. Indosinian movement and metallogenesis in Qinling orogenic belt[J]. Mineral Deposits, 2008, 27(6):762-773.
卢欣祥, 尉向东, 肖庆辉, 等. 秦岭环斑花岗岩的年代学研究及其意义[J].高校地质学报, 1999, 5(4):372-377.
LU Xinxiang, WEI Xiangdong, XIAO Qinghui, et al. Geochronological studies of rapakivi granites in Qinling and its geological implications[J]. Geological Journal of China Universities, 1999, 5(4):372-377.
罗旭,王宗田.陕西省杨斜-丰北河地区金、钨控矿构造特征及找矿方向研究报告[R].商洛:陕西地质矿产局第十三地质队, 1989.
罗旭. 陕西杨斜-丰北河地区金钨矿控脉(矿)断裂构造特征及演化与成矿关系分析[J].陕西地质, 1991, 9(1):1-9+94.
LUO Xu. The characteristics of the fracture tectonic controlling veins(ores) and the relationship between the tectonic evolution and ore-forming in the gold-wolfram deposit in the Yangxie-Fengbeihe area in Shaanxi[J]. Geology of Shaanxi, 1991, 9(1):1-9+94.
陕西省地质调查院.中国区域地质志·陕西志[M]. 北京:地质出版社, 2017.
Shaanxi Institute of Geological Survey. The Regional Geology of China, Shaanxi Province[M]. Beijing:Geological Publishing House, 2017.
孙卫东, 李曙光, 陈亚东, 等. 南秦岭花岗岩锆石U-Pb定年及其地质意义[J].地球化学, 2000, 29(3):209-216.
SUN Weidong, LI Shuguang, CHEN Yadong, et al. Zircon U-Pb dating of granitoids from South Qinling, Central China and their geological significance[J]. Geochimica, 2000, 29(3):209-216.
王宗乾. 商州市杨斜钨金矿地球化学特征及成因分析[J].陕西地质, 1994, 12(2):14-21.
WANG Zongqian. The geochemisitry characteristics and genetic analysis for W-Au deposit in Yangxie, Shangzhou[J]. Geology of Shaanxi, 1994, 12(2):14-21.
杨恺, 刘树文, 李秋根, 等. 秦岭柞水岩体和东江口岩体的锆石U-Pb年代学及其意义[J].北京大学学报(自然科学版), 2009, 45(5):841-847.
YANG Kai, LIU Shuwen, LI Qiugen, et al. LA-ICP-MS zircon U-Pb geochronology and geological significance of Zhashui granitoids and Dongjiangkou granitoids from Qinling,CentralChina[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2009, 45(5):841-847.
姚书振, 丁振举, 周宗桂, 等. 秦岭造山带金属成矿系统[J].地球科学-中国地质大学学报, 2002, 27(5):599-604.
YAO Shuzhen, DING Zhenju, ZHOU Zonggui, et al. Metallogenic system of Qinling orogen[J]. Earth Science-Journal of China University of Geosciences, 2002, 27(5):599-604.
张国伟, 程顺有, 郭安林, 等. 秦岭-大别中央造山系南缘勉略古缝合带的再认识-兼论中国大陆主体的拼合[J]. 地质通报, 2004, 23(9-10):846-853.
ZHANG Guowei, CHENG Shunyou, GUO Anlin, et al. Mianlue paleo-suture on the southern margin of the Central Orogenic System in Qinling-Dabie-with a discussion of the assembly of the main part of the continent of China[J]. Geological Bulletin of China, 2004, 23(9-10):846-853.
张国伟, 董云鹏, 赖绍聪, 等. 秦岭-大别造山带南缘勉略构造带与勉略缝合带[J].中国科学(D辑), 2003, 33(12):1121-1135.
ZHANG Guowei, DONG Yunpeng, LAI Shaocong, et al. Mianlue tectonic zone and Mianlue suture zone on southern margin of Qinling-Dabie orogenic belt[J]. Science in China(Series D), 2003, 33(12):1121-135.
张国伟, 董云鹏,姚安平. 秦岭造山带基本组成与结构及其构造演化[J].陕西地质, 1997, 15(2):1-14.
ZHANG Guowei, DONG Yunpeng,YAO Anping. The crustal compositions, structures and tectonic evolution of the Qinling orogenic belt[J]. Geology of Shaanxi, 1997, 15(2):1-14.
张国伟, 孟庆任, 于在平, 等. 秦岭造山带的造山过程及其动力学特征[J].中国科学(D辑), 1996, 26(3):193-200.
ZHANG Guowei, MENG Qingren, YU Zaiping, et al. Orogenic process of Qinling orogenic belt and its dynamics characteristics[J]. Science in China(Series D), 1996, 26(3):193-200.
张国伟, 张本仁, 袁学诚, 等. 秦岭造山带与大陆动力学[M]. 北京:科学出版社, 2001.
ZHANG Guowei, ZHANG Benren, YUAN Xuecheng, et al. Qinling Orogenic Belt and Continental Dynamics[M]. Beijing:Science Press, 2001.
张国伟, 张宗清, 董云鹏. 秦岭造山带主要构造岩石地层单元的构造性质及其大地构造意义[J].岩石学报, 1995, 11(2):101-114.
ZHANG Guowei, ZHANG Zongqing, DONG Yunpeng. Nature of main tectono-lithostratigraphic units of the Qinling orogen:implications for the tectonic evolution[J]. Acta Petrologica Sinica, 1995, 11(2):101-114.
张稳胜, 安三元. 陕西商县秦王山镁铁质岩体的特征及成因[J].岩石学报, 1990, (4):59-66.
ZHANG Wensheng, AN Shanyue. Characteristics and origin of the Qingwanshan mafic body[J]. Acta PetrologicaSinica, 1990, (4):59-66.
张宗清, 张国伟, 唐索寒, 等. 秦岭沙河湾奥长环斑花岗岩的年龄及其对秦岭造山带主造山期结束时间的限制[J]. 科学通报, 1999, 44(9):981-984.
ZHANG Zongqing, ZHANG Guowei, TANG Suohan, et al. Age of the Shahewan rapakivi granite in the Qinling Orogen, China, and its constraints on the end time of the main orogenic stage of this orogen[J].Chinese Science Bulletin, 1999, 44(9):981-984.
赵东宏, 杨忠堂, 李宗会, 等. 秦岭成矿带成矿地质背景及优势矿产成矿规律[M]. 北京:科学出版社, 2019.
ZHAO Donghong, YANG Zhongtang, LI Zonghui, et al. Metallogenic geological background and metallogenic law of dominant minerals in QinlingMetallogenicBelt[M]. Beijing:Science Press, 2019.
朱赖民, 张国伟, 李犇, 等. 秦岭造山带重大地质事件、矿床类型和成矿大陆动力学背景[J].矿物岩石地球化学通报, 2008, 27(4):384-390.
ZHU Laimin, ZHANG Guowei, LI Ben, et al. Main geological events, genetic types of metallic deposits and their geodynamical setting in the Qinling orogenic belt[J]. Bulletin of Mineralogy, Petrology and Geochemistry, 2008, 27(4): 384-390.
朱赖民, 张国伟, 李犇, 等. 与秦岭造山有关的几个关键成矿事件及其矿床实例[J].西北大学学报(自然科学版), 2009, 39(3):381-391.
ZHU Laimin, ZHANG Guowei, LI Ben, et al. Some key metallogenetic events of Qinling orogenic belt and their deposit examples[J]. Journal of Northwest University (Natural Science Edition), 2009, 39(3):381-391.
JIANG Yaohui, JIN Guodong, LIAO Shiyong, et al. Geochemical and Sr-Nd-Hf isotopic constraints on the origin of Late Triassic granitoids from the Qinlingorogen, central China:Implications for acontinental arc to continent-continent collision[J]. Lithos, 117(1-4):183-197.
MENG Qingren, ZHANG Guowei. Geologic framework and tectonic evolution of the Qinlingorogen, central China[J]. Tectonophysics, 2000, 323:183-196.
ZHANG Guowei, MENG Qingren, LAI Shaocong. Tectonics and Structure of Qinling Orogenic Belt[J]. Science in China (Series B), 1995, 38(11):1379-1394.
ZHOU Zhenju, CHEN Yanjing, JIANG Shaoyong, et al. Geology, geochemistry and ore genesis of the Wenyu gold deposit, Xiaoqinling gold field, Qinling Orogen, southern margin of North ChinaCraton[J]. Ore Geology Reviews, 2014, 59:1 -20.
-
计量
- 文章访问数: 887
- PDF下载数: 520
- 施引文献: 0
下载: