%0 Journal Article %T Earlier Devonian active continental arc in Central Tianshan:evidence of geochemical analyses and Zircon SHRIMP dating on mylonitized granitic rock.
中天山早泥盆世陆弧:来自花岗质糜棱岩地球化学及SHRIMP-U/Pb定年的证据 %A YANG TianNan %A LI JinYi %A SUN GuiHua %A WANG YanBin %A
杨天南 %A 李锦轶 %A 孙桂华 %A 王彦斌 %J 岩石学报 %D 2006 %I %X Mylonitized dioritic-granitic plutons occurred in north of Baluntai area,central Tianshan,Northwest China.Element geochemical data reveal that the dioritic-granitic plutons were generated at active continental arc environment like today's Chile;zircon U/Pb SHRIMP dating and CL imaging indicat that the active continental volcano arc developed at 405 -416 Ma.These data demonstrat that the paleo-south Tianshan ocean crust started northward subducting under the central Tianshan block at earlier Devonian,resulting in a continental arc upon the overriding plate.The following collision between the central Tianshan block and the Tarim block might begin at later of Earlier Devonian. %K Mylonitized dioritic-granitic pluton %K geochemistry %K zircon U/Pb SHRIMP dating %K central Tianshan
糜棱岩化花岗岩 %K 地球化学 %K SHRIMP锆石U-Pb年龄 %K 中天山 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=2013B5467E3054B1614CEC199353FCED&aid=2F6137ECEC0F4E65&yid=37904DC365DD7266&vid=BC12EA701C895178&iid=CA4FD0336C81A37A&sid=2001E0D53B7B80EC&eid=B6DA1AC076E37400&journal_id=1000-0569&journal_name=岩石学报&referenced_num=40&reference_num=45