New evidence of tectonic uplift and transform of movement style along Ailao Shan-Red River shear zone |
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Authors: | LI Qi CHEN Wenji WAN Jinglin LI Daming |
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Institution: | 1. Institute of Geology, China Seismological Bureau, Beijing 100029, China Correspondence should be addressed to Li Qi (email: liqi84@263.net 2. Institute of Geology, China Seismological Bureau, Beijing 100029, China Correspondence should be addressed to Li Qi (email: liqi84@263.net) |
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Abstract: | Using cooling curves of K-feldspars obtained by specific40Ar/39Ar step heating procedure and multiple diffusion domain modeling (MDD model), together with results of dating hornblende,
biotite, muscovite, and apatite, this research relates the cooling history of 3 areas, from Ejia in NWto Jinping in SE of
Ailao Shan-Red River shear zone, and near Hekou (distance about 390 km). The results indicate that the slip distance of Ailao
Shan-Red River shear zone is more than 350 km (at least based on the study done within China). And between the end of the
left-lateral slip movement and the beginning of the right-lateral slip movement, the uplift of shear zone from SE to NW was
homogeneously extended. |
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Keywords: | Ailao Shan-Red River shear zone thermal history MDD model |
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