Chronology study of meta-acidic volcanics in Qingshuigou-Bailiugou orefield，Qilian county of Gansu Province
Received date: 2009-07-23
Revised date: 2009-10-19
Online published: 2010-01-10
The study area is located in the North Qilian Mountains, where two volcanic domes are exposed: The Qingshuigou-Xiangzigou volcanic dome on the southem side and the Daliugou-Bailiugou volcanic dome on the northern; the deposits found all occur in the periphery of the northern volcanic dome, while the deposits occur in the center of southern volcanic dome. The studies suggest that the relationship between deposits and volcanic domes are very close. The copper-polymetallic deposits all occured in acidic volcanic rocks. By LA-ICP-MS zircon U-Pb dating, we obtained (502.6±3.1) Ma as the age of the ore-bearing acidic volcanic rocks is indicating the age about rocks and ores of the Qingshuigou-Biliugou orefield which formed in the Middle Cambrian. The formation environment of these ore-bearing volcanic rocks is the continental rift environment, and these ore-bearing volcanic rocks are the products of the Rodinia supercontinent rifting in Neoproterozoic.
YU Ji-Yuan . Chronology study of meta-acidic volcanics in Qingshuigou-Bailiugou orefield，Qilian county of Gansu Province[J]. Advances in Earth Science, 2010 , 25(1) : 55 -60 . DOI: 10.11867/j.issn.1001-8166.2010.01.0055
[1] Ren Youxiang，Peng Ligui，Li Zhipei, et al. Metallogenic Conditions and Metallogenic Prognosis of Massive Sulfide Deposits in Qinshuigou-Bailiugou of North Qilian[M]. Beijing: Geological Publishing House，2000.[任有祥,彭礼贵,李智佩，等.北祁连山清水沟—白柳沟矿田块状硫化物矿床成矿条件和成矿预测[M].北京:地质出版社，2000.]
[2] Xia Linqi, Xia Zuchun, Xu Xueyi, et al. Lithogenesis of Marine Volcanic Rocks from North Qilian Mountains[M]. Beijing: Geological Publishing House,1996.[夏林圻,夏祖春,徐学义,等.北祁连山海相火山岩岩石成因[M].北京：地质出版社,1996.]
[3] Xia Linqi, Xia Zuchun,Ren Youxiang, et al. Volcanism and Metallogenesis in Qilian Mountains and Their Adjacent Areas[M]. Beijing: Geological Publishing House,1998.[夏林圻,夏祖春,任有祥,等.祁连山及邻区火山作用与成矿[M].北京:地质出版社，1998.]
[4] Xia Linqi，Xia Zuchun, Ren Youxiang, et al. Tectono-Volcanic-Magmatism and Etallogenic Dynamics of the Qilian Mountains[M]. Beijing: China Land Press,2001.[夏林圻,夏祖春,任有祥,等.北祁连山构造—火山岩浆—成矿动力学[M].北京：中国大地出版社,2001.]
[5] Li Xiangmin, Peng Ligui, He Qing, et al. Mineralizationand Oresearch Model of Eastern Deposit in Baiyin Orefield, Gansu Province[M]. Beijing: Geological Publishing House, 2000.[李向民,彭礼贵,贺庆,等.甘肃白银矿田东部矿床成矿和找矿模式[M].北京：地质出版社, 2000.]
[6] Feng Yimin, He Shiping. Geotectonics and Orogeny of the Qilian Mountains,China[M]. Beijing: Geological Publishing House, 1996.[冯益民,何世平.祁连山大地构造与造山作用[M].北京：地质出版社,1996.]
[7] Wu Jieren, Yu Pusheng, Jia Qunzi. The discovery of conodonts in Liugouxia iron-(copper) orefieild from the western part of North-Qilian mountaina and its geologic significance[J].Northwest Geoscience,1997，18（1）：1-6.[邬介人,于浦生,贾群子.北祁连西段柳沟峡铁(铜)矿田牙形刺的发现及其地质意义\[J\].西北地质科学，1997，18（1）：1-6.]
[8] 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.[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.]
[9] Bian Qiantao.Geotecotonics and Metallogenic Model of Baiyingchang Orefield[M].Beijing: Seismological Press,1989.[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.]
[10] 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.[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.]
[11] Jiang Fuzhi, Wang Yuwang. New knowledge on geology of massive sulfide deposit in Baiyin orefield, Gansu Province[J].Geological Exploration for Non Ferrous Metals,1992, 1(3): 129-139.[姜福芝，王玉往.白银矿田块状硫化物矿床几个地质问题的新认识[J].有色金属矿产与勘探，1992，1（3）：129-139.]
[12] Xia Lingi, Xia Zuchun, Xu Xueyi. Dynamics of tectono-volcano-magmatic evolution from North Qilian Mountains, China[J].Northwest Geoscience,1995,16(1):1-28.[夏林圻,夏祖春,徐学义.北祁连山构造一火山岩浆演化动力学[J].西北地质科学,1995,16(1):1-28.]
[13] Wu Jieren, Yu Pusheng, Huang Yuchun. Analysis for metallogenetic and geological condition of copper-multi-metal in Qingshuigou to Bailiugou region, North Qilian[J].Northwest Geoscience,1995，16（1）：50-68.[邬介人, 于浦生, 黄玉春. 北祁连清水沟一白柳沟地区铜、多金属成矿地质条件的分析[J].西北地质科学，1995，16（1）：50-68.]
[14] He Shiping, Wang Hongliang, Xu Xueyi, et al. A LA-ICP-MS U-Pb chronological study of zircons from Hongtubao basic volcanic rocks and its geological significance in the east segment of North Qilian orogenic belt[J].Advances in Earth Science,2007，22（2）：143-151.[何世平，王洪亮，徐学义，等. 北祁连东段红土堡基性火山岩锆石LA-ICP-MS U-Pb年代学及其地质意义[J]. 地球科学进展，2007，22（2）：143-151.]
/
| 〈 |
|
〉 |
甘公网安备62010202000687
