北祁连尕大坂黑矿型矿床特征及形成环境
Characteristics and Forming Setting Analysis of Gadaban Kuroko-type Deposit in Northern Qilian
-
摘要: 研究区位于北祁连造山带西段尕大坂矿田，区内已发现的矿床均产于北侧的大柳沟-白柳沟火山穹窿的酸性火山岩和基性火山岩的接触部位。对尕大坂矿床和郭米寺矿床地质特征的研究及矿石化学成分的分析，认为矿床具“双岩石组合”，是典型的海底热水喷流沉积的标志，主要为Zn-Pb-Cu型多金属矿床，属于黑矿型。通过对矿田黑茨沟组含矿火山岩系的岩石地球化学研究，表明形成环境与弧后裂谷相似。Abstract: The study area is located in the western part of North Qilian orogenic belt, which is Gadaban ore field,. All the deposits discovered deposits in this areawere all found occurred in the contact area zone on the northern in of the acidic volcanic rocks and basic volcanic rocks of the Daliugou-Bailiugou volcanic domeondome in the north. Analysis on the research of the geological characteristics and ore chemical compositions analysis in Gadaban deposit and Guomisi deposit are with suggested that both thedeposits consisted of double rock group, is a sign of typical submarine hydrothermal sedex, which is mainly Zn-Pb-Cu polymetallic deposit, belonging to Kuroko-type deposit. By studing geochemical study on the ore bearing volcanic rocks of Heicigou group in the mine field, shows that the formation setting of the deposit is similar to back-arc rift environment.
-
Key words:
- volcanic rocks /
- Kuroko-type /
- back-arc rift
-
-
夏林圻,夏祖春.北祁连山元古代末-寒武纪海相火山岩作用与成矿作用的关系[J].西北地质科学,1995,16(1):29.
Xia Linqi, Xia Zuchun. The relationship between marine volcanism and ore-forming process from the end of late Proterozoic Era to Cambrian period in Northern Qilian MTS[J]. Nothwest Geoscience, 1995, 16(1):29.
余吉远,李向民,马中平,等.青海省祁连县清水沟-白柳沟矿田含矿火山岩系年代学研究[J].地质科学进展,2010,25(1):55.
Yu Jiyuan, Li Xiangming, Ma Zhongping, et al. Chronological study of Meta-Acidic volcanics in Qingshuigou-Bailiugou orefield, Qilian County of Qinghai Province[J]. Advances in Earth Science, 2010, 25(1):55.
冯益民,何世平.祁连山及其邻区大地构造基本特征-兼论早古生代海相火山岩的成因环境[J].西北地质科学,1995,16(1):92.
Feng Yimin, He Shiping. Basic characteristics of tectonics in the Qilian Mountains and its neighbourings-on genetic environments of early paleozoic marine volcanics[J]. Northwest Geoscience, 1995, 16(1):92.
贾群子,杨钟堂,肖朝阳,等.祁连成矿带成矿区划和找矿潜力[J].西北地质,2002,35(4):86-100.
Jia Qunzi, Yang Zhongtang, Xiao Chaoyang, et al, Subdivision of Qilian metallogenic belt and its prospecting potentiality[J]. Northwestern Geology, 2002, 35(4):86-100.
边千韬.白银厂矿区地质构造及成矿模式[M].北京:地震出版社,1989.
Bian Qiandao. Geotecotonics and metallogenic model of Baiyingchang orefield[M]. Seismological Press, Beijing, 1989.
尹观,张树发,范良明,等.甘肃白银金属硫化物矿床及其主要地质时间的同位素地质年代学研究[J].地质地球化学,1998,(1):6-14.
Yin Guan, Zhang Shufa, Fan Liangming, et al. Isotope geochronology studies of the main geological events on the sulfide ore deposits and neighborhood in Baiyin, Gansu[J]. Geology Geochemistry, 1998, (1):6-14.
侯增谦,浦边徹郎.古代与现代海底黑矿型块状硫化物矿床矿石地球化学比较研究[J].地球化学,1996,25(3):228.
Hou Zengqian, T.Urabe. A Comparative study on geochemistry of sulfide ores from the Kuroko-type Deposits on Ancient and Modern Sea-flood[J]. 1996, 25(3):228.
黄玉春,邬介人,于浦生.北祁连块状硫化物矿床中矿石和主要矿石矿物地球化学特征[J].矿床地质,1994,13(1):61-74.
Huang Yuchun, Wu Jieren, Yu Pusheng. Geochemical characteristics of ores and major ore minerals from the massive sulfide deposits in North Qilian Mountains[J].Mineral Deposits, 1994, 13(1):61-74.
刘斌,沈昆.流体包裹体热力学[M].北京:地质出版社,1999:1-285.
Liu Bin, Shen Kun. Fluid Inclusions Thermodynamics[M]. Geological Publish House, Beijing, 1999:1-285.
王国强,李向民,余吉远,等.北祁连清水沟-白柳沟矿田铜多金属矿床流体包裹体研究[J].矿物学报,2012,32(1):33-40.
Wang Guoqiang, Li Xiangming, Yu Jiyuan, et al. Fluid Inclusions in Quartz from Qingshuigou-Bailiugou Copper-Polymetallic Ore Field, North Qilian Mountains[J]. Mineralogica, 2012, 32(1):33-40.
欧阳京,汪双双,于漫,等.岛弧环境中不同成因的火成岩组合及其地质意义[J].甘肃地质,2010,19(2):18-26.
Ou Yanjing, Wang Shuangshaung, Yu Man, et al. Igneous assemblages of different origin in Island Arc and their geological significances[J]. Gansu Geology, 2010, 19(2):18-26.
Hall D L,Sterner S M,Bodnar R J.Freezing point depression of NaCl-KCl-H2O solutions[J].Economic Geology,1988,83(1):197-202.
-
计量
- 文章访问数: 3190
- PDF下载数: 2167
- 施引文献: 0
下载: