云南兰坪盆地北部东缘铅锌矿床喷流沉积成因的厘定———来自矿物学和硫同位素证据

黄玉凤; 曹殿华; 王志军; 李以科; 王安建

云南兰坪盆地北部东缘铅锌矿床喷流沉积成因的厘定———来自矿物学和硫同位素证据

1.
中国地质科学院矿产资源研究所，北京 100037

2.
罕王傲牛矿业股份有限公司，辽宁抚顺 113001

基金项目:
国家科技支撑计划课题(2006BAB01A07)资助

详细信息

作者简介: 黄玉凤(1986-)，男，在读硕士研究生，主要从事成矿规律方面的研究工作

通讯作者: 王安建(1953-)，男，教授，博士生导师，长期从事区域成矿学与矿产资源评价研究。E-mail: ajwang@cags.net.cn

中图分类号: P611

收稿日期: 2010-10-26

刊出日期: 2011-03-25

SEDEX DEPOSIT GENESIS OF THE Pb-Zn DEPOSITS IN THE NORTHEASTERN MARGIN OF LANPING BASIN IN YUNAN: EVIDENCE FROM MINERALOGICAL AND SULFUR ISOTOPIC STUDIES

1.
Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China

2.
Hanwang Aoniu Mining Corporation Ltd., Fushun 113001, Chin

More Information

Corresponding author: WANG An-jian, ajwang@cags.net.cn

Received Date: 26 October 2010

Publish Date: 25 March 2011

摘要

摘要:
通过详细的野外地质工作和显微镜下观察，对云南兰坪盆地东北部维西—乔后断裂带上三叠统石钟山组(T₃s)中产出的铅锌矿床成因进行厘定。研究结果表明，测区内存在大量典型的同生沉积矿床标志，如:纹层构造、条纹条带构造、网脉构造、黄铁矿条带软沉积构造、黄铁矿草莓状结构、黄铁矿胶状构造、闪锌矿同心环状构造等。青甸湾矿床金属硫化物硫同位素测试结果显示，黄铁矿的δ³⁴ S介于3.7‰ ~ 8.1‰，均值5.34‰; 闪锌矿的δ³⁴ S介于5.2‰ ~ 10.0‰之间，均值为7.18‰; 方铅矿的δ³⁴ S介于5.2‰ ~ 9.9‰之间，均值为7.275‰，铅锌矿床硫来源于海水硫酸根无机还原。结合矿床形成时代及大地构造背景，认为该区铅锌矿为喷流沉积作用形成。
- 兰坪盆地 /
- 喷流沉积 /
- 同生沉积 /
- 矿物学 /
- 硫同位素
Abstract:
A series of lead-zinc deposits such as Qingdianwan, Caizidi, Jinshantao and so on, which are situated in the Upper Triassic Shizhongshan Formation (T₃s) at the Weixi-Qiaohou fault belt, northeast of Lanping Basin. The genesis studies of these lead-zinc deposits are relatively superficial.. In this paper, through detailed field geological survey and studies under the microscope, authors found a large number of typical signs of the synsedimentary deposit such as laminated structure, striped band structure, vein net structure, the soft sedimentary pyrite band structure, strawberry-like pyrite structure, colloidal structure of pyrite, sphalerite concentric structure etc. Sulfur isotopes analysis results of metal sulfide in Qingdianwan deposit are following: δ³⁴ S of pyrite at 3.7‰ ~ 8.1‰, average 5.34‰ (N = 5); δ³⁴ S of sphalerite at 5.2‰ ~ 10‰, average 7.18‰ (N = 5); δ³⁴ S of galena at 5.2‰ ~ 9.9‰, average 7.275‰ (N = 4). It demonstrates that S in the deposit come from deoxidize of sulfate radical in seawater. Combining to the age data of these deposits and the tectonic background, we think these deposits in this area are pertain to Sedimentary Exhalation (SEDEX) genesis which revised the previous viewpoint that these deposits simply controlled by structure.
- Lanping Basin /
- Sedimentary Exhalative deposit (SEDEX) /
- synsedimentary /
- mineralogy /
- sulfur isotope

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图 1 青甸湾—菜子地矿区大地构造位置及矿区地质图

Figure 1.

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图 2 石钟山组(T₃s)岩性组合柱状图

Figure 2.

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图 3 P5号勘探线剖面图

Figure 3.

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图 4 P7号勘探线剖面图

Figure 4.

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图 5 青甸湾矿床上三叠统灰岩Pb-Zn矿典型矿物结构

Figure 5.

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图 6 青甸湾矿床上三叠统灰岩Pb-Zn矿典型矿石构造

Figure 6.

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图 7 青甸湾、灰山—黑山、金顶(北厂、架崖山)矿床硫化物硫同位素组成分布图

Figure 7.

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表 1 青甸湾、灰山—黑山、金顶矿区(北厂、架崖山)硫同位素组成

Table 1. Sulfur isotopic composition in Qingdianwan, Huishan-Heishan and Jinding (Beichang, Jiayashan) deposits

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参考文献(23)

[1]	田洪亮.兰坪三山多金属矿床地质特征[J].云南地质, 1998, 17 (2) : 199 ~ 206. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=ynzd802.009&dbname=CJFD&dbcode=CJFQ TIAN Hong-liang. The geological features of Sanshan polymetallic deposit, Lanping[J]. Yunnan Geology, 1998, 17 (2) : 199 ~ 206. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=ynzd802.009&dbname=CJFD&dbcode=CJFQ
[2]	薛春纪, 陈毓川, 王登红, 等.滇西北金顶和白秧坪矿床:地质和He, Ne, Xe同位素组成及成矿时代[J].中国科学: D辑, 2003, 33: 316 ~ 322. http://d.old.wanfangdata.com.cn/Periodical/zgkx-cd200304004 XUE Chun-ji, CHEN Yu-chuan, WANG Deng-hong, et al. Geology and He, Ne, Xe isotopic composition and ore-forming age of Jinding and Baiyangping deposit, Northwest of Yunnan Province[J]. Science China: series D, 2003, 33: 316 ~ 322. http://d.old.wanfangdata.com.cn/Periodical/zgkx-cd200304004
[3]	杨伟光, 喻学惠, 李文昌, 等.云南白秧坪银多金属矿集区成矿流体特征及成矿机制[J].现代地质, 2003, 17 (1) : 27 ~ 33. http://d.old.wanfangdata.com.cn/Periodical/xddz200301005 YANG Wei-guang, YU Xue-hui, LI Wen-chang, et al. The characteristics of metallogenic fluids and metalogenic mechanism in Baiyangping silver and polymetallic mineralization concentration area in Yunnan province[J]. Geoscience, 2003, 17 (1) : 27 ~ 33. http://d.old.wanfangdata.com.cn/Periodical/xddz200301005
[4]	邵兆刚, 孟宪刚, 冯向阳, 等.云南白秧坪—华昌山矿带构造特征及其控矿作用[J].地质力学学报, 2003, 9 (3) : 246 ~ 253. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20030331&journal_id=dzlxxb SHAO Zhao-gang, MENG Xian-gang, FENG Xiang-yang, et al. Tectonic characteristics of the Baiyangping-Huachangshan ore belt, Yunnan Province and its ore-controlling effect[J]. Journal of Geomechanics, 2003, 9 (3) : 246 ~ 253. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20030331&journal_id=dzlxxb
[5]	何明勤, 刘家军, 李朝阳, 李志明, 刘玉平.兰坪盆地铅锌铜大型矿集区的流体成矿作用机制:以白秧坪铜钴多金属地区为例[M].北京:地质出版社, 2004. HE Ming-qin, LIU Jia-jun, LI Chao-yang, et al. A large Cu, Pb, Zn ore district of the fluid mineralization mechanism in Lanping Basin: A case study of polymetallic Cu-Co deposit in Baiyangping[M]. Beijing: Geological Publishing House, 2004.
[6]	何龙清, 陈开旭, 余凤鸣, 等.云南兰坪盆地推覆构造及其控矿作用[J].地质与勘探, 2004, 40 (4) : 7 ~ 12. http://d.old.wanfangdata.com.cn/Periodical/dzykt200404002 HE Long-qing, CHEN Kai-xu, YU Feng-ming, et al. Nappe tectonics and their ore-controlling of Lanping Basin in Yunnan Province[J]. Geology and Prospecting, 2004, 40 (4) : 7 ~ 12. http://d.old.wanfangdata.com.cn/Periodical/dzykt200404002
[7]	何龙清, 季玮, 陈开旭, 等.滇西兰坪盆地白秧坪地区东矿带推覆构造的控矿作用[J].地质力学学报, 2007, 13 (2) : 110 ~ 118. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20070217&journal_id=dzlxxb HE Long-qing, JI Wei, CHEN Kai-xu, et al. Ore-controlling effect of nappe structure in east ore zone of the Baiyangping area, LanPing Basin, Yunnan[J]. Journal of Geomechanics, 2007, 13 (1) : 110 ~ 118. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20070217&journal_id=dzlxxb
[8]	陈开旭, 何龙清, 杨振强, 等.云南兰坪三山—白秧坪银多金属成矿富集区的碳氧同位素地球化学[J].华南地质与矿产, 2000, (4) : 1 ~ 8. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=hnkc200004000&dbname=CJFD&dbcode=CJFQ CHEN Kai-xu, HE Long-qing, YANG Zhen-qiang, et al. Oxygen and carbon isotope geochemistry in Sanshan-Baiyangping copper-silver polymetall ogenic enrichment district, Lanping, Yunnan[J]. Geology and Mineral Resources of South China, 2000, (4) : 1 ~ 8. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=hnkc200004000&dbname=CJFD&dbcode=CJFQ
[9]	薛顺荣.剑川金山桃铅锌矿床特征及成因探讨[J].云南地质, 2000, 19 (1) : 29 ~ 36. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=ynzd200001003&dbname=CJFD&dbcode=CJFQ XUE Shun-rong. A discussion on the feature and genesis of JinShanTao Pb-Zn deposit of Jianchuan[J]. Yunnan Geology, 2000, 19 (1) : 29 ~ 36. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=ynzd200001003&dbname=CJFD&dbcode=CJFQ
[10]	陈梁, 孙德瑜, 王列, 等.兰坪县青甸湾铅锌矿矿床地质[J].云南地质, 2009, 28 (3) : 280 ~ 284. http://d.old.wanfangdata.com.cn/Periodical/yndz200903010 CHEN Liang, SUN De-yu, WANG Lie, et al. he geology of QingDianwan Pb-Zn deposit in Lanping[J]. Yunnan Geology, 2009, 28 (3) : 280 ~ 284. http://d.old.wanfangdata.com.cn/Periodical/yndz200903010
[11]	赵化琛.我国若干裂谷构造特征及其成矿作用[J].矿产与地质, 1995, 9 (1) : 10 ~ 15. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=kcyd501.006&dbname=CJFD&dbcode=CJFQ ZHAO Hua-chen. Structural characters and their mineralization in some rifts in Chian[J]. Mineral Resources and Geology, 1995, 9 (1) : 10 ~ 15. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=kcyd501.006&dbname=CJFD&dbcode=CJFQ
[12]	Karen L. Geometry of the neoprotemzoic and Paleozoic rift margin of western Laurentia: Implications for mineral deposit settings[J]. Geesphere, 2008, 4 (2) : 429 ~ 444. doi: 10.1130/GES00121.1
[13]	Heinrieh D H. Sedimentary mineral deposits and the evolution of earth' s near-surface environmnents[J]. Economic Geology, 2005, 100: 1489 ~ 1509. doi: 10.2113/gsecongeo.100.8.1489
[14]	王成善, 唐菊兴, 顾雪祥, 陆彦.喜马拉雅构造一成矿域及其成矿效应初步分析[J].矿物岩石, 2001, 21 (3) : 146 ~ 152. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=kwys200103021&dbname=CJFD&dbcode=CJFQ WANG Cheng-shan, TANG Ju-xing, GU Xue-xiang, et al. Prel minary analysis on HMALAYAN tectonic-metallogenetic domain and its mineral ization effect[J]. Journal of Mineralogy and Petrology, 2001, 21 (3) : 146 ~ 152.
[15]	廖宗廷, 陈跃昆.兰坪—思茅盆地原形的性质及演化[J].同济大学学报:自然科学版, 2005, 33: 1527 ~ 1531. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=tjdz200511021&dbname=CJFD&dbcode=CJFQ LIAO Zong-ting, CHEN Yue-kun. Nature and evvolution of Lanping-Simao Basin prototyp-e[J]. Journal of Tongji University: Natural Science Edition, 2005, 33: 1527 ~ 1531. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=tjdz200511021&dbname=CJFD&dbcode=CJFQ
[16]	钟康惠, 唐菊兴, 刘肇昌, 寇林林, 董树义, 李志军, 周慧文.青藏东缘昌都—思茅构造带中新生代陆内裂谷作用[J].地质学报, 2006, 9: 1296 ~ 1311. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=dzxe200609007&dbname=CJFD&dbcode=CJFQ ZHONG Kang-hui, TANG Ju-xing, LIU Zhao-chang, et al. Mesozoic-Genozoic intracontinental rifting of Changdu-Simao tectonic zone in east margin of Qinghai-Tibet, southwestern China[J]. Acta Geologica Sinica, 2006, 9: 1296 ~ 1311.
[17]	陶晓风, 朱利东, 刘登忠, 等.滇西兰坪盆地的形成及演化[J].成都理工学院学报, 2002, 29 (5) : 521 ~ 525. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=cdlg200205010&dbname=CJFD&dbcode=CJFQ TAO Xiao-feng, ZHU Li-dong, LIU Deng-zhong, et al. The formation and evolution of the Lanping Basin in western Yunnan[J]. Journal of Chengdu University of Technology, 2002, 29 (5) : 521 ~ 525. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=cdlg200205010&dbname=CJFD&dbcode=CJFQ
[18]	陈跃昆, 廖宗廷, 魏志红, 等.兰坪—思茅中生代盆地的特征及构造演化[J].石油实验地质, 2004, 10 (3) : 219 ~ 222. doi: 10.11781/sysydz200403219 CHEN Yue-kun, LIAO Zong-ting, WEI Zhi-hong, et al. Characteristics and tectonic evolution of the Lanping-Simao Mesozoic basin[J]. Petroleum Geology & Experiment, 2004, 10 (3) : 219 ~ 222. doi: 10.11781/sysydz200403219
[19]	Sangster D F. Sulfur and lead isotopes in strata-bound deposits[A]. In: Wolf K H. Handbook of strata-bound and stratiform ore deposits[C]. Amsterdam: Elsevier, 1976, 2: 219 ~ 266.
[20]	侯增谦.现代与古代海底热水成矿作用[M].北京:地质出版社. 2003. HOU Zeng-qian. Hydrothermal Systems and Metallogeny on the Modern and Ancient Sea-Floor[M]. Beijing: Geological Publishing House, 2003.
[21]	匡文龙, 陈年生, 张万虎, 等.厂坝一李家沟SEDEX型铅锌矿床成矿作用研究[J].大地构造与成矿学, 2009, 32 (4) : 542 ~ 547. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=dgyk200904009&dbname=CJFD&dbcode=CJFQ KUANG Wen-long, CHEN Nian-sheng, ZHANG Wan-hu, et al. Discussion on the Minerogenetic Process for ChangbaLijiagou SEDEX Type Lead-Zinc Deposits[J]. Geotectonica et Metallogeni, 2009, 32 (4) : 542 ~ 547. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=dgyk200904009&dbname=CJFD&dbcode=CJFQ
[22]	邬介人, 任秉琛, 张莓, 等.青海锡铁山块状硫化物矿床的类型及地质特征[J].中国地质科学院西安地质矿产研究所所刊. 1987, (20) : 1 ~ 88. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=xbfk198706000&dbname=CJFD&dbcode=CJFQ WU Jie-ren, REN Bing-chen, ZHANG Mei, et al. The genetic type and geological characteristics of the XiTieShan massive sulphide deposit, Qinghai[J]. Bull. Xi' an Inst. Geol. Min. Res., Chinese Acad. Geol. Sci. 1987, (20) : 1 ~ 88. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=xbfk198706000&dbname=CJFD&dbcode=CJFQ
[23]	Ohmoto H. Stable isotope geochemistry of ore deposits[J]. Reviews in Mineralogy and Geochemistry, 1986, 16 (1) : 491 ~ 559. http://cn.bing.com/academic/profile?id=ef46382f29fadb0ce794628a62a1948d&encoded=0&v=paper_preview&mkt=zh-cn