Geological characteristics, rock-forming epoch and genesis of the Danizhuang Cu deposit in Luzong basin
-
摘要:
大倪庄铜矿是庐枞盆地内部近年来发现的一处小型斑岩型矿床。本次工作以大倪庄铜矿为研究对象，基于详细的野外观察和系统的岩相学、矿相学工作，总结了矿床的蚀变特征，即主要发育：钾硅酸盐化、黄铁绢英岩化、青磐岩化、碳酸盐化蚀变；确定了矿化特征、矿物生成顺序并划分了成矿阶段，即：钾硅酸盐化阶段、硫化物阶段、碳酸盐化阶段，其中硫化物阶段可进一步划分为石英硫化物亚阶段、绿帘石-绿泥石亚阶段。通过对与成矿有关的侵入岩体（正长斑岩）采用LA-ICP-MS锆石U-Pb定年，获得正长斑岩LA-ICP-MS锆石U-Pb年龄为（126.6±1.8）Ma，形成时代为早白垩世，对应于盆地内双庙旋回岩浆侵入活动。通过与其他区域相似矿床对比分析，探究了此类矿床控矿因素，为该地区斑岩型铜矿找矿勘查提供参考。
-
关键词:
- 斑岩型铜矿 /
- 围岩蚀变 /
- 成矿期次 /
- LA-ICP-MS锆石U-Pb定年
Abstract:The Danizhuang copper deposit is a small porphyry deposit discovered from Luzong basin in recent years. The authors investigated wall rock alterations of the Danizhuang copper deposit on the basis of detailed field observations and petrographic and mineralogical studies, and revealed that the alterations include potassic alteration, beresitization and carbonatization. The characteristics of mineralization, the sequence of mineral deposition and the ore-forming stages, i.e., potassium silicate stage, sulfide stage, carbonate stage, were determined. The sulfide stage can be further divided into quartz sulfide sub-stage and epidote-chlorite sub-stage. The authors collected magmatic rocks (orthophyre) related to mineralization and obtained the age of (126.6± 1.8 Ma) by LA-ICP-MS zircon U-Pb dating, which belongs to Early Cretaceous and was related to the intrusive activity of Shuangmiao Formation. Based on a comparison with similar deposits in other volcanic basins of eastern China, the authors discussed ore-control factors for the formation of this type of deposits, which provides reference for finding porphyry copper deposits in this area.
-
-
图 1 庐枞盆地岩浆岩及矿产分布图 (据周涛发等, 2016修改)
Figure 1.
表 1 大倪庄铜矿床正长斑岩LA-ICP-MS锆石U-Pb年代学分析结果
Table 1. LA-ICP-MS zircons U-Pb dating data of orthophyre from the Danizhuang copper deposit
下载: 导出CSV
表 2 大倪庄铜矿与其他陆相火山岩盆地中铜 (金) 矿床对比
Table 2. A comparison with other porphyry Cu (Au) deposits in the continental volcanic basin
下载: 导出CSV
-
Belousova E A, Griffin W L, O'Reilly S Y, Fisher N. 2002. Igneous zircon:Trace element composition as an indicator of source rock type[J]. Contrib. Mineral. Petrol., 143:602-622. doi: 10.1007/s00410-002-0364-7
Chang Yinfo, Liu Xiangpei, Wu Yanchang. 1991. The Copper-iron Belt of the Middle and Lower Reaches of Yangtze River[M]. Beijing:Geological Publishing House, 1-379(in Chinese).
Deng Jinfu, Xiao Qinghui, Qiu Ruizhao, Liu Cui, Zhao Guochun, Yu Bingsong, Zhou Xiao, Zhong Changting, Wu Zongxu. 2006. Cenozoic lithospheric extension and thinning of North China:Mechanism and process[J]. Geology in China, 33(4):751-761(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DIZI200604005.htm
Fan Yu, Zhou Taofa, Yuan Feng, Tang Minhui, Zhang Lejun, Ma Liang, Xie Jie. 2010. High sulfidation epithermal hydrothermal systemin Lu-Zong volcanic basin:Evidence from geological characteristics and sulfur isotope data of Fanshan alunite deposit[J]. Acta Petrologica Sinica, 26(12):3657-3666(in Chinese with English abstract).
Jiang Fuzhi, Wang Yuwang. 2003. Volcanism and gold deposits[J]. Geology in China, 30(1):84-92(in Chinese with English abstract).
Li Hongying, Zhang Ronghua, Hu Shumin. 2009. Geochemical Characteristics of syenite and its genesis in the Luzong Basin[J]. Journal of Jilin University (Earth Science Edition), 39(5):839-848(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-CCDZ200905012.htm
Liu Hong, Qiu Jiansheng, Luoqinhua, Xu Xisheng, Ling Wenli, Wang Dezi. 2002. Petrogenesis of the Mesozoic potash-rich volcanic rocks in the Luzong basin, Anhui Province:Geochemical constraints[J]. Geochimica, 31(2):129-140(in Chinese with English abstract).
Liu Jun, Zhou Taofa, Yuan Feng, Fan Yu, Wu Mingan, Lu Sanming, Qian Chunchao. 2007. Rock geochemistry and genesis of the Bajiatan intrusion in the Lujiang-Zongyang volcanic basin, Anhui[J]. Acta Petrologica Sinica, 23(10):2615-2622(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-YSXB200710028.htm
Liu Yinan, Fan Yu, Gao Changsheng, Zhang Qianming, Zhang Lejun. 2016. Geological characteristics of Xiaobaozhuang iron deposit in the Lu-Zong volcanic basin, the Middle-Lower Yangtze River Valley metallogenic belt[J]. Acta Petrologica Sinica, 32(2):319-333(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-YSXB201602004.htm
Nie Liqing, Zhou Taofa, Fan Yu, Zhang Qianming, Wang Longhu. 2016. LA-ICPMS U-Pb zircon age and molybdenite Re-Os dating of Donggushan, the first tungsten deposit found in the Luzong orefield, Middle-Lower Yangtze River Valley metallogenic belt[J]. Acta Petrologica Sinica, 32(2):303-318(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-YSXB201602003.htm
Qin Yongjun, Zeng Jiannian, Wang Siyuan, Lu Jiangpei, Yang Meizhen, Chen Jinhua. 2010. Metallogenic characteristics and orecontrol factors of Jingbian copper (gold) deposit in Luzong basin, Anhui Province[J]. Mineral Depoists, 29(5):915-930(in Chinese with English abstract).
Ren Qijiang, Wang Dezi, Xu Zhaowen, Dong Huogeng, Pan Longquan, Yang Rongyong, Fang Changquan, Hu Jinan. 1993. Formation and development of the Mesozoic Lujiang-Zongyang volcanic-structural depression in Anhui Province and their relation to mineralization[J]. Acta Geologica Sinica, 67(2):131-145(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DZXE199302003.htm
Ren Qijiang. 1991. Mesozoic Volcano-Tectonic Depression and Its Mineralizing Process in Lujiang-Zongyang Area, Anhui Province[M]. Beijing:Geological Publishing House, 1-20(in Chinese).
Wang Shaohua, Xu Zhaowen, Lu Xiancai, Wang Rucheng, Wang Hao, Cheng Meng, Zhu Xiangyu. 2014. Mode of occurrence of arsenic and S, Pb isotope in the Dapingshan copper depoist, Nanjing[J]. Journal of Nanjing Unversity (natural sciences), 50(2):181-191(in Chinese with English abstract).
Wang Shiwei, Zhou Taofa, Yuan Feng, Fan Yu, Yu Canghai, Ge Linghong, Shi Cheng, Chi Yueyu. 2014. Emplacement sequences and geochronology of the Shaxi porphyry copper-gold deposit, Anhui Province, East China[J]. Acta Petrologica Sinica, 30(4):979-994(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-YSXB201404008.htm
Wu Mingan, Zhang Qianming, Wang Xiangyun. 1996. Longqiao Iron Deposit in Lujiang County, Anhui Provinc[M]. Beijing:Geological Publishing House, 1-19(in Chinese).
Xiao Qinghui, Qiu Ruizhao, Wu Guangying, Xing Zuoyun, Zhang Yu, Tong Jinsong. 2006. Mesozoic asthenospheric upwelling orogeny in eastern China[J]. Geology in China, 33(4):730-750(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DIZI200604004.htm
Xue Huaimin, Dong Shuwen, Ma Fang. 2010. Geochemistry of shoshonitic volcanic rocks in the Luzong basin, Anhui Province (Eastern China):Constraints on Cretaceous lithospheric thinning of the Lower Yangtze region[J]. Acta Geologica Sinica, 84(5), 664-681(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTotal-DZXE201005007.htm
Yang Rongyong, Ren Qijiang, Xu Zhaowen, Sun Yedong, Guo guozhang, Qiu Jiangsheng. 1993. The magma source of Bajiatan volcanic-intrusive complex in the Lujiang-Zongyang area, Anhui Province[J]. Geochimica, 2:197-206(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DQHX199302010.htm
Yang Yizeng, Chen Fukun, Siebel Wolfgang, Zhang He, Long Qun, He Jianfeng, Hou Zhenhui, Zhu Xiyan. 2014. Age and composition of Cu-Au related rocks from the lower Yangtze River belt:Constraints on paleo-Pacific slab roll-back beneath eastern China[J]. Lithos, 202-203:331-346. doi: 10.1016/j.lithos.2014.06.007
Yu Liangfan, Yang Xiaoyong, Sun Weidong, Chi Yueyu, Zhang Qianming. 2008. The adakite and mineralization of the Shaxi porphyry copper-gold deposit, Central Anhui[J]. Geology in China, 35(6):1150-1161(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTotal-DIZI200806014.htm
Yuan Feng, Zhou Taofa, Fan Yu, Lu Sanming, Qian Chunchao, Zhang Lejun, Duan Chao, Tang Minhui. 2008. Source, evolution and tectonic setting of Mesozoic volcanic rocks in Luzong basin, Anhui Province[J]. Acta Petrologica Sinica, 24(8):1691-1702(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-YSXB200808003.htm
Zhai Yusheng, Yao Shuzheng, Lin Xinduo, Jin Fuquan, Zhou Xunruo, Wan Tianfeng, Zhou Zonggui. 1992. Metallogenic regularity of iron and copper depoists in the middle and lower valley of the Yangtze River[J].Mineral Depoists, 11(1):1-12(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-KCDZ199201000.htm
Zhang Lejun, Zhou Taofa, Fan Yu, Yuan Feng, Ma Liang, Qian Bin. 2010. Dating of copper mineralization in Jingbian deposit and its prospecting significance in Luzong basin, Anhui Province[J]. Acta Petrologica Sinica, 26(9):2729-2738(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-YSXB201009018.htm
Zhang Shu, Wu Mingan, Wang Jing, Li Xiaolong, Zhao Wenguang, Wei Guohui. 2014. The Mineralization related with the Syenite in Luzong Basin, Anhui Province[J]. Acta Geologica Sinica, 88(4):519-531(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DZXE201404007.htm
Zhou Taofa, Yuan Feng, Yang Wenping, He Lixin, Tan Lugui, Fan Yu, Yue Shucang. 2006. Permian volcanism in the Sawr'er area, western Junggar[J]. Geology in China, 33(3):553-558(in Chinese with English abstract).
Zhou Taofa, Fan Yu, Yuan Feng, Song Chuanzhong, Zhang Lejun, Qian Chunchao, Lu Sanming, David R.Cooke. 2010. Temporal-spatial framework of magmatic intrusions in Luzong volcanic basin in East China and their constrain to mineralizations[J].Acta Petrologica Sinica, 26(9):2694-2714(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-YSXB201009016.htm
Zhou Taofa, Wu Mingan, Fan Yu, Duan Chao, Yuan Feng, Zhang Lejun, Liu Jun, Qian Bing, Fanco Pirano, David R Cooke. 2011.Geological, geochemical characteristics and isotope systematics of the Longqiao iron deposit in the Lu-Zong volcano-sedimentary basin, Middle-Lower Yangtze (Changjiang) River Valley, Eastern China[J]. Ore Geology Reviews, 43:154-169. doi: 10.1016/j.oregeorev.2011.04.004
Zhou Taofa, Song Minyi, Fan Yu, Liu Jun, Wu Mingan, Qian Chunchao, Lu Sanming. 2007. Chronology of the Bajiatan intrusion in the Lu Zong basin, Anhui and its significance[J]. Acta Petrologica Sinica, 23(10):237-2386(in Chinese with English abstract).
Zhou Taofa, Wang Shiwei, Yuan Feng, Fan Yu, Zhang Dayu, Chang Yinfo, Noel C.White. 2016. Magmatism and related Mineralization of the intracontinental porphyry deposits in the Middle-Lower Yangtze River Valley Metallogenic Belt[J]. Acta Petrologica Sinica, 32(2):271-288(in Chinese with English abstract).
Zhao Wenjin. 2008. Ore prospects and ore exploration methods for metal deposits in the middle and lower Yangtze River valley[J]. Geology in China, 35(5):771-802(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DIZI200805002.htm
Zhou Weiwei, Cai Jianhui, Yan Guohan, Wang Yaying, Yan Xingguang, Yan Zhijiao. 2014. Geochronology and petrogeochemistry of Xianghongdian alkaline intrusion in Jinzhai County of Anhui Province and its significance[J]. Mineral Deposits, 33(1):104-122(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTotal-KCDZ201401007.htm
Zhou Xiaodong, Guo Kunyi, Chen Guoguang, Zeng Yong, Song Shiming, Shen Jinchao. 2013. Geological and ore-forming fluid characteristics of vein type copper deposits in northern Ningwu area[J]. Geology in China, 40(5):1622-1633(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTotal-DIZI201305025.htm
常印佛, 刘湘培, 吴言昌. 1991.长江中下游铜铁成矿带[M].北京:地质出版社, 1-379.
邓晋福, 肖庆辉, 邱瑞照, 刘翠, 赵国春, 于炳松, 周肃, 钟长汀, 吴宗絮. 2006.华北地区新生代岩石圈伸展减薄的机制与过程[J].中国地质, 33(4):751-761. http://geochina.cgs.gov.cn/ch/reader/view_abstract.aspx?file_no=20060405&flag=1
范裕, 周涛发, 袁峰, 唐敏惠, 张乐骏, 马良, 谢杰. 2010.庐枞盆地高硫化型浅成低温热液成矿系统:来自矾山明矾石矿床地质特征和硫同位素地球化学的证据[J].岩石学报, 26(12):3657-3666. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201012018.htm
姜福芝, 王玉往. 2003.火山活动与金矿床[J].中国地质, 30(1):84-92. http://geochina.cgs.gov.cn/ch/reader/view_abstract.aspx?file_no=20030108&flag=1
李洪英, 张荣华, 胡书敏. 2009.庐枞盆地正长岩类地球化学特征及成因探讨[J].吉林大学学报 (地球科学版), 39(5):839-848. http://www.cnki.com.cn/Article/CJFDTOTAL-CCDZ200905012.htm
刘洪, 邱检生, 罗清华, 徐夕生, 凌文黎, 王德滋. 2002.安徽庐枞中生代富钾火山岩成因的地球化学制约[J].地球化学, 31(2):129-140. http://www.cnki.com.cn/Article/CJFDTOTAL-DQHX200202003.htm
刘珺, 周涛发, 袁峰, 范裕, 吴明安, 陆三明, 钱存超. 2007.安徽庐枞盆地中巴家滩岩体的岩石地球化学特征及成因[J].岩石学报, 23(10):2615-2622. doi: 10.3969/j.issn.1000-0569.2007.10.027
刘一男, 范裕, 高昌生, 张千明, 张乐骏. 2016.长江中下游成矿带庐枞盆地小包庄铁矿床地质特征研究[J].岩石学报, 32(2):319-333. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201602004.htm
聂利青, 周涛发, 范裕, 张千明, 汪龙虎. 2016.长江中下游成矿带庐枞矿集区首例钨矿床成岩成矿时代及其意义[J].岩石学报, 32(2):303-318. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201602003.htm
任启江, 王德滋, 徐兆文, 董火根, 潘龙泉, 杨荣勇, 方长泉, 胡进安. 1993.安徽庐枞火山-构造洼的形成、演化及成矿[J].地质学报, 67(2):131-145. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE199302003.htm
任启江. 1991.安徽庐枞中生代火山构造洼地及其成矿作用[M].北京:地质出版社, 1-20.
覃永军, 曾键年, 王思源, 陆建培, 杨梅珍, 陈津华. 2010.安徽庐枞盆地井边铜 (金) 矿床成矿特征及控矿地质因素探讨[J].矿床地质, 29(5):915-930. http://www.cnki.com.cn/Article/CJFDTOTAL-KCDZ201005014.htm
王少华, 徐兆文, 陆现彩, 王汝成, 王浩, 陈锰, 朱翔宇. 2014.南京大平山铜矿砷的赋存状态及矿石S、Pb同位素[J].南京大学学报 (自然科学), 50(2):181-191. http://www.cnki.com.cn/Article/CJFDTOTAL-NJDZ201402010.htm
王世伟, 周涛发, 袁峰, 范裕, 俞沧海, 葛玲虹, 石诚, 池月余. 2014.安徽沙溪斑岩型铜金矿床成岩序列及成岩成矿年代学研究[J].岩石学报, 30(4):979-994. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201404008.htm
吴明安, 张千明, 汪祥云. 1996.安徽庐江龙桥铁矿[M].北京:地质出版社, 1-19.
肖庆辉, 邱瑞照, 伍光英, 邢作云, 张煜, 童劲松. 2006.中国东部中生代软流层上涌造山作用[J].中国地质, 33(4):730-750. http://geochina.cgs.gov.cn/ch/reader/view_abstract.aspx?file_no=20060404&flag=1
薛怀民, 董树文, 马芳. 2010.安徽庐枞火山岩盆地橄榄玄粗岩系的地球化学特征及其对下扬子地区晚中生代岩石圈减薄机制的约束[J].地质学报, 84(05):664-681. doi: 10.3969/j.issn.1004-9665.2010.05.009
杨荣勇, 任启江, 徐兆文, 孙冶东, 郭国章, 邱检生. 1993.安徽庐枞地区巴家滩火山-侵入体的岩浆来源[J].地球化学, 02:197-206. doi: 10.3321/j.issn:0379-1726.1993.02.011
余良范, 杨晓勇, 孙卫东, 池月余, 张千明. 2008.埃达克岩与皖中沙溪斑岩铜矿的成矿作用[J].中国地质, 35(6):1150-1161. http://geochina.cgs.gov.cn/ch/reader/view_abstract.aspx?file_no=20080611&flag=1
袁峰, 周涛发, 范裕, 陆三明, 钱存超, 张乐骏, 段超, 唐敏慧. 2008.庐枞盆地中生代火山岩的起源、演化及形成背景[J].岩石学报, 24(8):1691-1702. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB200808003.htm
翟裕生, 姚书振, 林新多, 金福全, 周珣若, 万天丰, 周宗桂. 1992.长江中下游地区铁、铜等成矿规律研究[J].矿床地质, 11(1):1-12. http://www.cnki.com.cn/Article/CJFDTOTAL-KCDZ199201000.htm
张乐骏, 周涛发, 范裕, 袁峰, 马良, 钱兵. 2010.安徽庐枞盆地井边铜矿床的成矿时代及其找矿指示意义[J].岩石学报, 26(09):2729-2738. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201009018.htm
张舒, 吴明安, 汪晶, 李小龙, 赵文广, 魏国辉. 2014.安徽庐枞盆地与正长岩有关的成矿作用[J].地质学报, 88(4):519-531. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE201404007.htm
赵文津. 2008.长江中下游金属矿找矿前景与找矿方法[J].中国地质, 35(5):771-802. http://geochina.cgs.gov.cn/ch/reader/view_abstract.aspx?file_no=20080501&flag=1
周涛发, 范裕, 袁峰, 宋传中, 张乐骏, 钱存超, 陆三明, David R. Cooke. 2010.庐枞盆地侵入岩的时空格架及其对成矿的制约[J].岩石学报, 26(9):2694-2714. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201009016.htm
周涛发, 宋明义, 范裕, 刘珺, 吴明安, 钱存超, 陆三明. 2007.安徽庐枞盆地中巴家滩岩体的年代学研究及其意义[J].岩石学报, 23(10):2379-2386. doi: 10.3969/j.issn.1000-0569.2007.10.006
周涛发, 王世伟, 袁峰, 范裕, 张达玉, 常印佛, Noel C. White. 2016.长江中下游成矿带陆内斑岩型矿床的成岩成矿作用[J].岩石学报, 32(2):271-288. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201602001.htm
周涛发, 袁峰, 杨文平, 何立新, 谭绿贵, 范裕, 岳书仓. 2006.西准噶尔萨吾尔地区二叠纪火山活动规律[J].中国地质, 33(3):553-558. http://geochina.cgs.gov.cn/ch/reader/view_abstract.aspx?file_no=20060311&flag=1
周伟伟, 蔡剑辉, 阎国翰, 王亚莹, 闫星光, 闫志娇. 2014.安徽金寨响洪甸碱性侵入岩年代学、岩石地球化学及其意义[J].矿床地质, 33(1):104-122. http://www.cnki.com.cn/Article/CJFDTOTAL-KCDZ201401007.htm
周小栋, 郭坤一, 陈国光, 曾勇, 宋世明, 申金超. 2013.宁芜北部脉状铜矿床地质与成矿流体特征研究[J].中国地质, 40(5):1622-1633. http://geochina.cgs.gov.cn/ch/reader/view_abstract.aspx?file_no=20130525&flag=1
-
图(9)
表(2)
计量
- 文章访问数: 2139
- PDF下载数: 1170
- 施引文献: 0