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阿尔金断裂走滑位移的确定——来自阿尔金山东段构造成矿带的新证据
引用本文:陈柏林,崔玲玲,白彦飞,王世新,陈正乐,李学智,祁万修,刘荣.阿尔金断裂走滑位移的确定——来自阿尔金山东段构造成矿带的新证据[J].岩石学报,2010,26(11):3387-3396.
作者姓名:陈柏林  崔玲玲  白彦飞  王世新  陈正乐  李学智  祁万修  刘荣
作者单位:1. 中国地质科学院地质力学研究所,北京,100081
2. 水利部山西水利水电科学研究院,太原,030024
3. 新疆地后调查院第一地质调查所,乌鲁木齐,830011
基金项目:本文受国家重点基础研究发展规划"973"项目(2007CB411305)和国家科技支撑计划重点项目(2006BAB07B02-04)联合资助.
摘    要:阿尔金断裂是中国西北地区最大走滑断裂之一,呈北东东向延绵近1500km,以其强烈的贯穿性、巨大的规模、强烈的活动性和巨大的位移量为特征。但是对于其左行位移量一直存在比较大的争议,一些学者认为300~500km,而另外一些学者认为700~800km,甚至900~1000km。最近十余年的找矿进展显示出阿尔金山东段是一条重要的铁铜金铅锌多金属成矿带,其矿床成因类型、不同矿种组合关系及其反映的成矿作用条件与北祁连山西段非常相似,可以认为阿尔金山东段成矿带是北祁连山西段成矿带的西延部分,即阿尔金山东段成矿带是北祁连山西段成矿带被阿尔金断裂左行走滑断错的部分。因此,依据阿尔金山东段成矿带与祁连山西段成矿带的可比性,将此作为标志物,作者认为阿尔金断裂左行走滑总位移量为400km左右。

关 键 词:左行走滑位移量  阿尔金断裂  成矿带  阿尔金山东段  北祁连山西段
收稿时间:2009/12/19 0:00:00
修稿时间:2010/2/19 0:00:00

A determining on the displacement of the Altun Tagh sinistral strike-slip fault, NW China: New evidence from the tectonic metallogenetic belt in the eastern part of Altun Tagh Mountains.
CHEN BaiLin,CUI LingLing,BAI YanFei,WANG ShiXin,CHEN ZhengLe,LI XueZhi,QI WanXiu and LIU Rong.A determining on the displacement of the Altun Tagh sinistral strike-slip fault, NW China: New evidence from the tectonic metallogenetic belt in the eastern part of Altun Tagh Mountains.[J].Acta Petrologica Sinica,2010,26(11):3387-3396.
Authors:CHEN BaiLin  CUI LingLing  BAI YanFei  WANG ShiXin  CHEN ZhengLe  LI XueZhi  QI WanXiu and LIU Rong
Institution:Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China;Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China;Shanxi Hydroelectric Investigation and Design Institute, MWR, Taiyuan 030024, China;Institute of Xinjiang Geological Survey Research, Urumqi 830011, China;Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China;Institute of Xinjiang Geological Survey Research, Urumqi 830011, China;Institute of Xinjiang Geological Survey Research, Urumqi 830011, China;Institute of Xinjiang Geological Survey Research, Urumqi 830011, China
Abstract:Altun Tagh fault, as one of the largest strike-slip faults in NW China, extends about 1500km with a NEE-trending. It is characterized as violent penetrability, large scale, strong activity and long displacement. There are different viewpoints about the displacement of the fault, some geologists consider that the displacement is about 300~500km, but other geologist consider as 700~800km, even 900~1000km. The headway of ore-prospecting last teen years shows that the eastern part of Altun Tagh Mountains is an important Fe-Cu-Au-Pb-Zn multi metallogenetic belt. And the deposit genetic type, assemblage of different deposit and metallogenetic condition are well similar to the western part of the northern Qilianshan metallogenetic belt. So the eastern Altun Tagh metallogenetic belt is the west extension of the northern Qilianshan metallogenetic belt. In other words, eastern Altun Tagh metallogenetic belt is a part of the northern Qilianshan metallogenetic belt being dislocated by Altun Tagh fault as it sinistral strike-slip motion. Therefore, according to the corporation between Altun Tagh metallogenetic belt and Qilianshan metallogenetic belt, the writer believes that the displacement is about 400km.
Keywords:Displacement of sinistral strike-slip  Altun Tagh fault  Metallogenetic belt  Eastern part of Altun Tagh Mountains  Western part of the northern Qilianshan
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