%0 Journal Article
%T The tectonic evolution of the south Tianshan paleo-oceanic crust inferred from the spreading structures and Ar-Ar dating of the Hongliuhe ophiolite, NW China<br>新疆甘肃交界红柳河蛇绿岩中伸展构造与古洋盆演化过程
%A GUO ZhaoJie
%A SHI HongYu
%A ZHANG ZhiCheng
%A ZHANG Jiniang
%A <br>郭召杰[
%A ] 史宏宇 张志诚 张进江
%J 岩石学报
%D 2006
%I 
%X The Hongliuhe(HLH)ophiolite is the fragment of the Paleozoic south Tianshan oceanic crust.Abundant spreading structures,for example,mylonitic foliations,extensional crenulation cleavages,small low-angle normal faults and brittle conjugated high-angle normal faults were developed in the cumulate gabbroic layer of HLH ophiolite.These extensional structures underwent the integrated processes from ductile deformation,through ductile-brittle deformation to brittle deformation.The geometric studies of the spreading structures indicate they were formed in the sea-floor spreading environment of the paleo-oceanic crust.The ~(40)Ar/~(39)Ar ages propose the sea-floor spreading of the Paleo-south Tianshan oceanic crust was prior to 462Ma and the emplacement of the HLH ophiolite was no later than 412Ma.
%K Ophiolite
%K Spreading structures
%K ^40Ar/^39Ar ages
%K Sea-floor spreading
%K Hongliuhe<br>蛇绿岩
%K 伸展构造
%K 40Ar/39Ar年代学
%K 洋壳扩张
%K 红柳河
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=2013B5467E3054B1614CEC199353FCED&aid=A7049C156B6B1561&yid=37904DC365DD7266&vid=BC12EA701C895178&iid=CA4FD0336C81A37A&sid=C36EC077A8A90308&eid=331211A5F5616413&journal_id=1000-0569&journal_name=岩石学报&referenced_num=17&reference_num=31