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新疆北部石炭纪-二叠纪独特的构造-成矿作用:对古亚洲洋构造域南部大地构造演化的制约
引用本文:肖文交,韩春明,袁超,陈汉林,孙敏,林寿发,厉子龙,毛启贵,张继恩,孙枢,李继亮.新疆北部石炭纪-二叠纪独特的构造-成矿作用:对古亚洲洋构造域南部大地构造演化的制约[J].岩石学报,2006,22(5):1062-1076.
作者姓名:肖文交  韩春明  袁超  陈汉林  孙敏  林寿发  厉子龙  毛启贵  张继恩  孙枢  李继亮
作者单位:1. 中国科学院地质与地球物理研究所岩石圈演化国家重点实验室,北京,100029
2. 中国科学院广州地球化学研究所,广州,510640
3. 浙江大学理学院,杭州,310027
4. 香港大学地球科学系
5. Departemnt of Earth Sciences,University of Waterloo,200 University Avenue West,Waterloo,Ontario,Canada N2L 3G1
基金项目:国家研究发展基金;国家科技攻关项目;香港研究资助局资助项目
摘    要:新疆北部晚古生代独特的构造-成矿作用以发育大量石炭纪-二叠纪构造-成矿事件为特征,其中包括:(1)发育于晚石炭世-二叠世的阿尔泰岛弧及其变质事件、阿尔泰麻粒岩与基性杂岩、西南天山放射虫硅质岩和高压-超高压-低压麻粒岩相变质事件;(2)北疆发育的石炭纪(-二叠世)埃达克岩-高镁安山岩-富Nd玄武质岩组合、阿拉斯加型基性-超基性杂岩和大量的与俯冲相关的钙碱性岩浆活动与斑岩型铜矿床成矿作用;(3)天山晚石炭世晚期蛇绿岩与岛弧火山岩等。结合北疆地区相关的前陆盆地发育不明显、碰撞型花岗岩欠发育与大量发育平行造山带大型走滑构造等现象,可以认为新疆北部在石炭纪-二叠纪挤压-伸展-走滑并存,岩浆活动与成矿作用活跃。这些新进展表明新疆北部在晚石炭世-二叠纪可能仍存在活动陆缘,因此,古亚洲洋构造域南部复杂增生造山作用最后延至晚石炭世晚期-二叠纪。

关 键 词:新疆北部  石炭纪-二叠世构造-成矿事件  古亚洲洋构造域南部
文章编号:1000-0569/2006/022(05)-1062-76
收稿时间:12 20 2005 12:00AM
修稿时间:04 10 2006 12:00AM

Unique Carboniferous-Permian tectonic-metallogenic framework of Northern Xinjiang(NW China):Constraints for the tectonics of the southern Paleoasian Domain.
XIAO WenJiao,HAN ChunMing,YUAN Chao,CHEN HanLin,SUN Min,LIN ShouF,LI ZiLong,MAO QiGui,ZHANG JiEn,SUN Shu and LI JiLiang.Unique Carboniferous-Permian tectonic-metallogenic framework of Northern Xinjiang(NW China):Constraints for the tectonics of the southern Paleoasian Domain.[J].Acta Petrologica Sinica,2006,22(5):1062-1076.
Authors:XIAO WenJiao  HAN ChunMing  YUAN Chao  CHEN HanLin  SUN Min  LIN ShouF  LI ZiLong  MAO QiGui  ZHANG JiEn  SUN Shu and LI JiLiang
Institution:1. State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China; 2. Guangzhou Institute of Geochemlstry, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China ;3. Faculty of Sciences, Zhejiang University, Hangzhou 310027, Zhejiang, China; 4. Department of Earth Sciences, The University of Hong Kong, Hong Kong, China; 5. Department of Earth Sciences, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada N2L 3G1.
Abstract:The late Paleozoic tectonic-metallogenic framework of North Xinjiang of the southern Paleoasian Domain was characterized by a serious of Carboniferous-Permian events,including:(1)late Carboniferous-Permian Chinese Altay island arc and its metamorphism,granulite in the Chinese Altay,radiolarian chert and high-pressure/ultra-high-pressure metamorphism;(2)late Carboniferous-early Permian adakites,Alaskan-type mafic-ultramafic complexes,and calc-alkaline magmatism,together with porphyry copper deposits,which occurred in the North Xinjiang;and(3)late Carboniferous ophiolite and island arc volcanic rocks located in the Tian Shan.Combined with the facts that there was no typical foreland basin,no typical collisional-type granitoid,and there were large amount of strike-slip faulting,it is suggested that in the Carboniferous-early Permian North Xinjiang was characterized by the coexistence of compression-extension-strike-slip structures with active magmatism and metallogeny.These phenomena all indicate that there were active margins during the late Carboniferous-early Permian,leading to the notion that the complicated aeeretionary orogeny along the southern Paleoasian Domain may have lasted to the latest Carboniferous-Permian.
Keywords:North Xinjiang  Carboniferous-early Permian tectonic-metallogenic framework  Southern Paleoasian Domain
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