秦岭印支期岩浆作用与成矿研究
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摘要
经过长时间的板块构造演化,秦岭碰撞造山在印支期完成拼合,形成中国陆地由此转入陆内变形。通过前人的同位素年龄研究表明,印支期是秦岭的重要成矿期,其成矿作用受到构造演化控制比较明显。秦岭印支期成矿作用是中国东部中生代成矿作用的开端,并且奠定了成矿大爆发的基础,为碰撞期和碰撞期后构造体制的转换研究提供了依据。重视秦岭印支期岩浆作用与成矿作用的研究,对理解秦岭区域成矿规律、认识秦岭造山带演化的动力学过程,建立成矿理论体系均具有重要意义。
The Qinling collision orogeny was completed in the Indosinian period, after a long period of plate tectonics evolution, and the Chinese land was transformed into intracontinental deformation. The pre-existing isotope age study shows that the Indosinian period is an important metallogenic period of the Qinling, and its mineralization is controlled by tectonic evolution. The mineralization of the Indosinian in the Qinling is the beginning of the Mesozoic mineralization in eastern China. The mineralization of the Indosinian in the Qinling laid the foundation for the large-scale metallogenic explosion providing a basis for the study of the transformation of the tectonic regime after the collision and collision phases. Paying attention to the study of magmatism and mineralization in the Indosinian period of the Qinling is of great significance for understanding the metallogenic regularity of the Qinling area, understanding the dynamic process of the Qinling orogenic belt evolution, and establishing the ore-forming theoretical system.
The Qinling collision orogeny was completed in the Indosinian period, after a long period of plate tectonics evolution, and the Chinese land was transformed into intracontinental deformation. The pre-existing isotope age study shows that the Indosinian period is an important metallogenic period of the Qinling, and its mineralization is controlled by tectonic evolution. The mineralization of the Indosinian in the Qinling is the beginning of the Mesozoic mineralization in eastern China. The mineralization of the Indosinian in the Qinling laid the foundation for the large-scale metallogenic explosion providing a basis for the study of the transformation of the tectonic regime after the collision and collision phases. Paying attention to the study of magmatism and mineralization in the Indosinian period of the Qinling is of great significance for understanding the metallogenic regularity of the Qinling area, understanding the dynamic process of the Qinling orogenic belt evolution, and establishing the ore-forming theoretical system.
引文
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[14]Dong Yunpeng,Zhang Guowei,Neubauer F,et al.Tectonic evolution of the Qinling orogen,China:review and synthesis[J].Journal of Asian Earth Sciences,2011,41:213-237.
[15]陈衍景,翟明国,蒋少涌.华北大陆边缘造山过程与成矿研究的重要进展和问题[J].岩石学报,2009,25(11):2695-2726.
[16]李诺,孙亚莉,李晶,等.小秦岭大湖金钼矿床辉钼矿铼锇同位素年龄及印支期成矿事件[J].岩石学报,2008,24(4):810-816.
[17]Chen Yanjing,Pirajno F,Qi Jinping.The Shanggong gold deposit,Eastern Qinling Orogen,China:Isotope geochemistry and implications for ore genesis[J].Journal of Asian Earth Science,2008,33:252-266.
[18]宋史刚,丁振举,姚书振,等.甘肃武山温泉辉钼矿同位素定年及其成矿意义[J].西北地质,2008,41(1):67-73.
[19]倪志勇,李诺,张辉,等.河南大湖金钼矿床成矿物质来源的锶钕铅同位素约束[J].岩石学报,2009,25(11):2823-2832.
[2]卢欣祥,李明立,王卫,等.秦岭造山带的印支运动及印支期成矿作用[J].矿床地质,2008,27(6):762-773.
[3]李先梓,严陈,卢欣祥.秦岭-大别山花岗岩[M].北京:地质出版社,1993.
[4]姜春发,王宗起,李锦轶.中央造山带的开合构造[M].北京:地质出版社,2000.
[5]张国伟,张本仁,袁学诚,等.秦岭造山带与大陆动力学[M].北京:科学出版社,2001.
[6]Ernst W G,Tsujimori T,Zhang R,et al.Permo-Triassic collision,subduction zone metamorphism,and tectonic exhumation along the East Asian continental margin[J].Annual Review of Earth and Planetary Science,2008,35:73-110.
[7]Zhu Rixiang,Yang Zhenyu,Wu Hanning,et al.Palaeomagnetic constraints on the tectonic history of the major blocks of China during the Phanerozoic[J].Science in China(Series D),1998,41(9):1-19.
[8]Lin Jinlu,Fuller M,Zhang Wenyou.Preliminary Phanerozoic polar wander paths for the North and South China Blocks[J].Nature,1985,313:444-449.
[9]Yuan Xianchen.Velocity structure of the Qingling lithosphere and mushroom cloud model[J].Science in China(Series D),1996,39(3):235.
[10]Liu Shuwen,Li Qiugen,Tian Wei,et al.Petrogenesis of Indosinian granitoids in middle-segment of south Qinling tectonic belt:constraints from Sr-Nd isotopic systematics[J].Acta Geologica Sinica:English Edition,2011,85(3):610-628.
[11]Qin Jiangfeng,Lai Shaocong,Rodney Grapes,et al.Geochemical evidence for origin of magma mixing for the Triassic monzonitic granite and its enclaves at Mishuling in the Qinling orogeny(Central China)[J].Lithos,2009,112:259-276.
[12]Qin Jiangfeng,Lai Shaocong,Rodney Grapes,et al.Origin of Late Triassic high-Mg adakitic granitoid rocks from the Dongjiangkou area,Qinling orogen,Central China:implications for subduction of continental crust[J].Lithos,2010,120:347-367.
[13]杨崇辉,魏春景,张寿广,等.南秦岭佛坪地区麻粒岩相岩石锆石U-Pb年龄[J].地质评述,1999,45(2):173-179.
[14]Dong Yunpeng,Zhang Guowei,Neubauer F,et al.Tectonic evolution of the Qinling orogen,China:review and synthesis[J].Journal of Asian Earth Sciences,2011,41:213-237.
[15]陈衍景,翟明国,蒋少涌.华北大陆边缘造山过程与成矿研究的重要进展和问题[J].岩石学报,2009,25(11):2695-2726.
[16]李诺,孙亚莉,李晶,等.小秦岭大湖金钼矿床辉钼矿铼锇同位素年龄及印支期成矿事件[J].岩石学报,2008,24(4):810-816.
[17]Chen Yanjing,Pirajno F,Qi Jinping.The Shanggong gold deposit,Eastern Qinling Orogen,China:Isotope geochemistry and implications for ore genesis[J].Journal of Asian Earth Science,2008,33:252-266.
[18]宋史刚,丁振举,姚书振,等.甘肃武山温泉辉钼矿同位素定年及其成矿意义[J].西北地质,2008,41(1):67-73.
[19]倪志勇,李诺,张辉,等.河南大湖金钼矿床成矿物质来源的锶钕铅同位素约束[J].岩石学报,2009,25(11):2823-2832.
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