%0 Journal Article
%T 40Ar/39Ar geochronological constraints on syn-orogenic strike-slip movement of Tan-Lu fault zone<br>^40Ar／^39Ar geochronological constraints on syn-orogenic strike-slip movement of Tan-Lu fault zone
%A ZHU Guang
%A LIU Guosheng
%A W J Dunlap
%A C Teyssier
%A WANG Yongsheng
%A NIU Manlan
%A <br>W.J.Dunlap
%A C.Teyssier
%J 科学通报(英文版)
%D 2004
%I 
%X Two phases of sinistral strike-slip ductile shear belts occur on the eastern margin of the Dabie orogenic belt. A muscovite40Ar/39Ar plateau age of 128 Ma was obtained from mylonite in the later ductile shear zone. Three muscovite samples separated from mylonites of 3 localities in the earlier ductile shear belts yield40Ar/39Ar plateau ages of 192.5±0.7 Ma, 189.7 ± 0.6 Ma and 188.7±0.7 Ma, respectively. They are interpreted as cooling ages of the earlier sinistral strike-slip deformation. It is suggested that left-lateral displacement of the Tan-Lu fault zone started in a late stage of the collision orogeny in the Dabie-Sulu orogenic belt between the North and South China plates. Therefore, the earlier Tan-Lu fault zone was syn-orogenic strike-slip tectonics. The fault zone was used again for sinistral displacement during tectonic activities of peri-Pacific regime in Early Cretaceous. It is proposed that the fault zone occurred as a transform fault during the orogenic process.
%K muscovite 40Ar/39Ar age
%K mylonite
%K Tan-Lu fault zone
%K syn-orogenic strike-slip movement
%K Dabie-Sulu orogenic belt<br>氩
%K 地质年代学
%K 走向滑距运动
%K 断层带
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=354E3B238CE4ED74204B6A6C4D75464D&yid=D0E58B75BFD8E51C&vid=2A3781E88AB1776F&iid=94C357A881DFC066&sid=A03A15CF5604A8B0&eid=37F781FD8E744761&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=5&reference_num=36