The genetic relationship between Pb-Zn deposits and paleo-oil reservoirs in Mayuan, northern Sichuan Basin
-
摘要:
马元铅锌矿床是四川盆地北缘重要的铅锌矿床之一，赋矿地层为震旦系灯影组，野外可见大量的沥青与铅锌矿共生/伴生，镜下见早期沥青与闪锌矿、方铅矿共生，沥青的生物标志物与郭家坝组烃源岩极为相似。物质来源方面，铅锌成矿主要的物质来源和两期油气成藏的物质来源均为下寒武统郭家坝组；时间关系方面，铅锌成矿的共生矿物Rb-Sr同位素等时线年龄为（486.7±3.1）Ma，仅可能与第一期古油藏形成、破坏有关。闪锌矿和重晶石包裹体中含有CH4和少量H2S、沥青，表明铅锌成矿流体中富含有古油藏裂解产物。生烃、排烃、初次运移萃取出“双源层”中的铅锌元素，第一期古油藏裂解和短暂TSR作用产生的还原性硫为铅锌络合物沉淀提供了物质基础，第一期古油藏最终完全破坏残留下早期沥青。
Abstract:Mayuan is one of the important lead-zinc deposits in northern Sichuan Basin, and its mineral formation is Cambrian Dengying Formation. Field and microscope studies revealed early bitumen and sphalerite, with associated galena. The biomarker of bitumen is very similar to that of the source rocks of Gjiaba Formation. The main sources of Pb-Zn deposits and paleo-oil reservoirs are the lower Cambrian Guojiaba Formation. The Rb-Sr isotopic isochron age of lead-zinc mineralization is(486.7±3.1) Ma, probably related to the formation and destruction of the first paleo-oil reservoirs. Sphalerite and barite inclusions contain CH4 and a small amount of H2S, bitumen, whereas lead-zinc mineralization fluids are rich in pyrolysis products of paleo-oil reservoirs. Hydrocarbon generation, hydrocarbon expulsion, the initial transport extraction of "double source layer" in the lead and zinc elements, the first paleo-oil reservoirs and the short-term TSR produced by the reduction of sulfur and lead-zinc complex precipitation all provided the material basis, and the first paleo-oil reservoirs eventually destroyed the residual early bitumen.
-
致谢: 感谢论文撰写过程中孙玮老师及同门师兄弟们的热心帮助，同时感谢审稿专家及编辑部老师提出的建设性意见。
-
![]()
图 1 研究区大地构造位置（据刘伟，2015修改）
Figure 1. Geological location of the study area(modified after Liu Wei, 2015)
![]()
图 2 沥青与铅锌矿密切共生/伴生关系
Sp—闪锌矿；Bit—沥青；Qtz—石英；Dol—白云石；Brt—重晶石；Py—黄铁矿
Figure 2. Relationship between bitumen and lead - zinc deposit
Sp-Sphalerite; Bit-Bitumen; Qtz-Quartz; Dol-Dolomite; Brt-Barite; Py-Pyrite;
![]()
图 4 烃源岩正构烷烃质量色谱图（a—955-CM21-19；b—955- CM21-33；c—955-CM21-43）
Figure 4. Source rock n-alkanes mass chromatogram
![]()
图 6 米仓山南缘地区埋藏史与成矿年龄（据黄盛，2013修改）
Figure 6. Burial history and mineralization age of the southern margin of Micangshan (modified from Huang, 2013)
![]()
图 7 马元铅锌矿床中包裹体拉曼光谱图
a—主矿物为重晶石；b—主矿物为闪锌矿
Figure 7. Raman spectra of inclusions in the Mayuan lead-zinc deposit
a-Main mineral: barite; b-Main mineral: sphalerite
![]()
图 8 铅锌成矿与油气成藏耦合关系
Figure 8. The coupling relationship between lead and zinc mineralization and hydrocarbon accumulation
表 1 马元铅锌矿床中沥青及烃源岩碳同位素组成
Table 1 Carbon isotope composition of bitumen and source rocks in the Mayuan Pb-Zn deposit
下载: 导出CSV
-
Gu X X, Li, B H, Xu S H, Fu S H, Dong S Y. 2007. Characteristics of hydrocarbon-bearing ore-forming fluids in the Youjiang Basin, South China:Implications for hydrocarbon accumulation and ore mineralization[J]. Earth Science Frontiers, 14(5):133-146. http://cn.bing.com/academic/profile?id=e70aea77dca898325b2eff2536303fe3&encoded=0&v=paper_preview&mkt=zh-cn
Gu Xuexiang, Zhang Yongmei, Li Baohua, Xue Chunji, Dong Shuyi, Fu Shaohong, Cheng Wenbin, Liu Li, Wu Chengyun. 2010. The coupling relationship between metallization and hydrocarbon accumulation in sedimentary basins[J]. Earth Science Frontiers, 17(2):83-105 (in Chinese with English abstract). http://d.old.wanfangdata.com.cn/Periodical/dxqy201002008
Han Runsheng, Liu Congqiang, Huang Zhilong, Chen Jin, Ma Deyun, Li Yuan. 2001. Genesis modeling of Huize lead-zinc ore deposit in Yunnan[J]. Acta Mineralogica Sinica, 21(4):674-680(in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=kwxb200104018
Han Yixiao, Liu Yunhua, Liu Shuwen, Lei Wanbin, Li Zhen, Li Yuntao, Li Xing. 2016. Origin of the breccia and metallogenic geological background of Mayuan Pb-Zn deposit[J]. Earth Science Frontiers, 23(4):94-101 (in Chinese with English abstract). http://d.old.wanfangdata.com.cn/Periodical/dxqy201604008
Hou Mantang, Wang Dangguo, Deng Shengbo, Yang Zongrang. 2007.Geology and genesis of the Mayuan lead-zinc mineralization belt in Shaanxi Province[J]. Northwestern Geology, 40(1):42-60(in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=xbdz200701004
Huang Sheng. 2013. Study on the Multi-phase Fluid Activities of Dengying Formation and Tectonic Uplift of Micang Mountain Area[D]. Chengdu: Chengdu University of Technology(in Chinese with English abstract).
Li Houming, Chen Yuchuan, Wang Denghong, Li Xueqin. 2007.Geochemistry and mineralization age of the Mayuan zinc deposit, Nanzheng, southern Shaanxi, China[J]. Geological Bulletin of China, 26(5):546-552 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgqydz200705006
Liu Shuwen, Liu Lingfang, Gao Yongbao, Ge Xiaohong, Zheng Xuzhong, Zhang Haidong, Wang Liang. 2012. Sources of metallogenic materials for Mayuan Pb-Zn deposit on northern margin of Yangtze Plate:Evidence from C, O, H, S, Pb and Sr isotope geochemistry[J]. Mineral Deposits, 31(3):545-554(in Chinese with English abstract). http://cn.bing.com/academic/profile?id=62cbf2062517d1401c0085e4c8d29505&encoded=0&v=paper_preview&mkt=zh-cn
Liu Wei. 2015. The Formation and Evolution of Hydrothermal Fluids in the MVT Lead-Zinc Deposits in Northern Margin of Sichuan Basin[D]. Chengdu: Chengdu University of Technology (in Chinese with English abstract).
Liu Wusheng, Zhao Xingqi, Shi Qingping, Zhang Zinan. 2017.Research on relationship of oil-gas and sandstone-type uranium mineralization of northern China[J]. Geology in China, 44(2):279-287(in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgdizhi201702005
Long Teng, Wang Guozhi, Xu Peng, Yang Minghui. 2015. Geological geochemical characteristics of asphalt in MVT lead and zinc mine in the northern margin of Sichuan basin[J]. Acta Mineralogica Sinica, (S1).320-320 (in Chinese). http://cn.bing.com/academic/profile?id=bba01d6c81235fdc480afb79bed13bf6&encoded=0&v=paper_preview&mkt=zh-cn
Long Teng. 2016. Studies on the Coupling Relationship of the MVT Lead-zinc Deposits and the Ancient Oil(Gas)Reservoir in the Northern Margin of the Sichuan Basin[D]. Chengdu: Chengdu University of Technology (in Chinese with English abstract).
Mao Xiuli. 2015. Studies on the Ore-forming Material Sources of the MVT Lead-zinc Deposits Occured in Denging Formation in the Northern Margin of the Sichuan Basin[D]. Chengdu: Chengdu University of Technology (in Chinese with English abstract).
Plumlee G S, Leach D L, Hofstra A H, Landis G P, Rowan E L, Viets J G. 1994. Chemical reaction path modeling of ore deposition in Mississippi Valley-type Pb-Zn deposits of the Ozark region, US midcontinent[J]. Economic Geology, 90(5):1346-1349. http://cn.bing.com/academic/profile?id=bfebfb6fa7d5f1b13a137257a21dde75&encoded=0&v=paper_preview&mkt=zh-cn
Sun Dong. 2011. The Structural Character and Meso-Cenozoic Evolution of Micang Mountain Structural Zone, Northern Sichuan Basin, China[D]. Chengdu: Chengdu University of Technology(in Chinese with English abstract)
Wang Guozhi, Liu Shugen, Chen Cuihua, Wang Dong, Sun Wei. 2013.The genetic relationship between MVT Pb-Zn deposits and paleooil/gas reservoirs at Heba, Southeastern Sichuan Basin[J]. Earth Science Frontiers, 20(1):107-116 (in Chinese with English abstract).
Wang Xiaohu, Xue Chunji, Li Zhiming, Li Qiang, Yang rongjin. 2008.Geological and geochemical characteristics of Mayuan Pb-Zn ore deposit on northern margin of Yangtze landmass[J]. Mineral Deposits, 27(1):37-48 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=kcdz200801004
Wilson N S F, Zentilli M. 2006. Association of pyrobitumen with copper mineralization from the Uchumi and Talcuna districts, central Chile[J]. International Journal of Coal Geology, 65(1/2):158-169. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=038b9735df6c79df0f034934b2edbef0
Xiong Suofei. 2015. Ore-Forming Fluids of the Pb-Zn Deposits Hosted in the Sinian System, Margin of the Up-Middle Yangtze[D]. Wuhan: China University of Geosciences(in Chinese with English abstract).
Xue Chunji, Wang Xiaohu, Li Zhiming, Yang rongjin. 2007. Study on metallogenic model of lead and zinc deposit in hanzhong, Shaanxi Province[J].Bulletin of Mineralogy, Pertology and Geochemistry, 26(S1):337-338 (in Chinese with English abstract).
Xue Wei, Xue Chunji, Chi Guoxiang, Shi Haigang, Gao Bingyu, Yang Shoufa. 2010. Study on the fluid inclusions of Baiyangping polymetallic deposit in Lanping Basin, northwestern Yunnan, China[J]. Acta Petrologica Sinica, 26(6):1773-1784(in Chinese with English abstract). http://cn.bing.com/academic/profile?id=78c22a14526d9033f245bb85825ce163&encoded=0&v=paper_preview&mkt=zh-cn
Yin Li. 2016. Mineralogical Characteristics and Significance of Mayuan Pb-Zn Deposit[D]. Chengdu: Chengdu University of Technology (in Chinese with English abstract).
Zhang Shaoni. 2013. The Characteristics of Natural Bitumen and Analysis of Source Rock of Lead-zinc Deposit of Deying Formation in North Sichuan basin[D]. Xi'an: Changan University(in Chinese with English abstract).
顾雪祥, 章永梅, 李葆华, 薛春纪, 董树义, 付绍洪, 程文斌, 刘丽, 吴程赟. 2010.沉积盆地中金属成矿与油气成藏的耦合关系[J].地学前缘, 17(2):83-105. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dxqy201002008 韩润生, 刘丛强, 黄智龙, 陈进, 马德云, 李元. 2001.论云南会泽富铅锌矿床成矿模式[J].矿物学报, 21(4):674-680. http://d.old.wanfangdata.com.cn/Periodical/kwxb200104018 韩一筱, 刘云华, 刘淑文, 雷万杉, 李真, 李云涛, 李兴. 2016.马元铅锌矿床角砾岩成因及成矿地质背景[J].地学前缘, 23(4):94-101. http://d.old.wanfangdata.com.cn/Periodical/dxqy201604008 侯满堂, 王党国, 邓胜波, 杨宗让. 2007.陕西马元地区铅锌矿地质特征及矿床类型[J].西北地质, 40(1):42-60. http://d.old.wanfangdata.com.cn/Periodical/xbdz200701004 黄盛. 2013.米仓山地区构造隆升与灯影组多期流体活动研究[D].成都: 成都理工大学. http://cdmd.cnki.com.cn/Article/CDMD-10616-1013288646.htm 李厚民, 陈毓川, 王登红, 李华芹. 2007.陕西南郑地区马元锌矿的地球化学特征及成矿时代[J].地质通报, 26(5):546-552. http://d.old.wanfangdata.com.cn/Periodical/zgqydz200705006 刘淑文, 刘玲芳, 高永宝, 戈晓红, 郑绪忠, 张海东, 王亮. 2012.扬子陆块北缘马元铅锌矿床成矿物质来源探讨:来自C、O、H、S、Pb、Sr同位素地球化学的证据[J].矿床地质, 31(3):545-554. 刘伟. 2015.四川盆地北缘MVT型铅锌矿床中热液流体的形成与演化[D].成都: 成都理工大学. http://www.wanfangdata.com.cn/details/detail.do?_type=degree&id=Y2842911 刘武生, 赵兴齐, 史清平, 张梓楠. 2017.中国北方砂岩型铀矿成矿作用与油气关系研究[J].中国地质, 44(2):279-287. http://geochina.cgs.gov.cn/geochina/ch/reader/view_abstract.aspx?file_no=20170205&flag=1 龙腾, 王国芝, 许鹏, 唐鑫, 杨明辉. 2015.四川盆地北缘MVT铅锌矿中沥青的地质地球化学特征[J].矿物学报, (S1).320-320. http://d.old.wanfangdata.com.cn/Conference/9132794 龙腾. 2016.四川盆地北缘MVT铅锌矿床与古油(气)藏耦合关系研究[D].成都: 成都理工大学. http://cdmd.cnki.com.cn/Article/CDMD-10616-1016226904.htm 毛秀丽. 2015.四川盆地北缘灯影组MVT铅锌矿成矿物质来源研究[D].成都: 成都理工大学. http://cdmd.cnki.com.cn/Article/CDMD-10616-1015312159.htm 孙东. 2011.米仓山构造带构造特征及中-新生代构造演化[D].成都: 成都理工大学. http://cdmd.cnki.com.cn/Article/CDMD-10616-1011236288.htm 王国芝, 刘树根, 陈翠华, 王东, 孙玮. 2013.四川盆地东南缘河坝MVT铅锌矿与古油气藏的成生关系[J].地学前缘, 20(1):107-116. http://d.old.wanfangdata.com.cn/Periodical/dxqy201301010 王晓虎, 薛春纪, 李智明, 李强, 杨荣进. 2008.扬子陆块北缘马元铅锌矿床地质和地球化学特征[J].矿床地质, 27(1):37-48. http://d.old.wanfangdata.com.cn/Periodical/kcdz200801004 熊索菲. 2015.中上扬子地块周缘赋存于震旦系的铅锌矿成矿流体研究[D].武汉: 中国地质大学. http://cdmd.cnki.com.cn/Article/CDMD-10491-1015709940.htm 薛春纪, 王晓虎, 李智明, 杨荣进. 2007.陕西汉中马元铅锌矿床成矿模式探讨[J].矿物岩石地球化学通报, 26(s1):337-338. http://d.old.wanfangdata.com.cn/Periodical/kwysdqhxtb2007z1163 薛伟, 薛春纪, 池国祥, 石海岗, 高炳宇, 杨寿发. 2010.滇西北兰坪盆地白秧坪多金属矿床流体包裹体研究[J].岩石学报, 26(6):1773-1784. http://d.old.wanfangdata.com.cn/Periodical/ysxb98201006012 尹力. 2016.陕西马元地区楠木树铅锌矿床矿物学特征[D].成都: 成都理工大学, . 张少妮. 2013.四川盆地北缘灯影组铅锌矿天然沥青特征及其源岩分析[D].西安: 长安大学.
计量
- 文章访问数: 2696
- HTML全文浏览量: 515
- PDF下载量: 4198
