Structural analysis of the Nanchang-Wanzai sinistral ductile shear zone (Jiangnan region, South China)

1991 ◽  
Vol 6 (1) ◽  
pp. 13-23 ◽  
Author(s):  
Liangshu Shu ◽  
Jacques Charvet ◽  
Yangshen Shi ◽  
Michel Faure ◽  
Dominique Cluzel ◽  
...  
Keyword(s):  
Structural Analysis ◽  
Shear Zone ◽  
South China ◽  
Ductile Shear Zone ◽  
Ductile Shear

The relationship between ductile shear zone and mineralization in the Jiufeng Sn deposit, northern Guangxi, South China: Evidence from structural analysis and cassiterite U-Pb dating

2020 ◽  
Vol 124 ◽  
pp. 103655
Author(s):  
Sai-sai Li ◽  
Zuo-hai Feng ◽  
Ya Qin ◽  
Chong-jin Pang ◽  
Yu Dai ◽  
...  
Keyword(s):  
Structural Analysis ◽  
Shear Zone ◽  
South China ◽  
Ductile Shear Zone ◽  
Ductile Shear ◽  
The Relationship

Transformation from Neoproterozoic Sinistral to Early Paleozoic Dextral Shearing for the Jingdezhen Ductile Shear Zone in the Jiangnan Orogen, South China

2018 ◽  
Vol 29 (2) ◽  
pp. 376-390 ◽  
Author(s):  
Xianbing Xu ◽  
Shoufa Lin ◽  
Shuai Tang ◽  
Xuefen Zhang
Keyword(s):  
Shear Zone ◽  
South China ◽  
Ductile Shear Zone ◽  
Early Paleozoic ◽  
Ductile Shear

Olivine fabric evolution in a hydrated ductile shear zone at the Moho Transition Zone, Oman Ophiolite

2013 ◽  
Vol 377-378 ◽  
pp. 299-310 ◽  
Author(s):  
Katsuyoshi Michibayashi ◽  
Tatsuya Oohara
Keyword(s):  
Shear Zone ◽  
Transition Zone ◽  
Ductile Shear Zone ◽  
Oman Ophiolite ◽  
Fabric Evolution ◽  
Ductile Shear

Mass Transfer Related to Ductile Shear Zone Development in a Metagabbro

1989 ◽  
pp. 213-230 ◽  
Author(s):  
J. L. Potdevin ◽  
J. M. Lardeaux ◽  
D. Coffrant
Keyword(s):  
Mass Transfer ◽  
Shear Zone ◽  
Ductile Shear Zone ◽  
Zone Development ◽  
Ductile Shear

40Ar/ 39Ar laser dating of Zongwulong ductile shear zone in northeastern Tibetan Plateau ：Constrains on the closure time of the northmost Paleo-Tethys ocean

2021 ◽  
Author(s):  
Wanli Gao ◽  
Zongxiu Wang
Keyword(s):  
Shear Deformation ◽  
Shear Zone ◽  
Ductile Deformation ◽  
Low Grade ◽  
Ductile Shear Zone ◽  
The South ◽  
Oblique Collision ◽  
Ductile Shear ◽  
Tethys Ocean ◽  
Tectonic Belt

<p><strong><img src="https://contentmanager.copernicus.org/fileStorageProxy.php?f=gepj.67d6c7216eff55356050161/sdaolpUECMynit/12UGE&app=m&a=0&c=5572aca4b392eef83f52919e1be673e9&ct=x&pn=gepj.elif&d=1" alt="">Abstract</strong>：The Zongwulong tectonic belt (ZTB) is located between the northern Qaidam tectonic belt and the south Qilian orogenic belt and contains Late Paleozoic and Early- Middle Triassic strata. Structural features and geochronology of Zongwulong ductile shear zone have key implications for the tectonic property of the ZTB. This study integrated field structure, microscopic structure and <sup>40</sup>Ar/<sup>39</sup>Ar laser probe analysis. The shear zone strikes ~NEE-SWW and dips at a high angle, with a NWW-SEE trending and WE stretching lineation, indicating the shear zone as a thrust- slip shear ductile shear. The asymmetric folds, rotating porphyroclast,structural lens and crenulation cleavage can be seen in the field. Mica fish, S − C fabrics, σ type quartz porphyroclastic and quartz wire drawing structure can also be observed under microscope, indicating that the strike- slip- related ductile deformation and mylonitization occurred under low- grade greenschist facies conditions at temperatures of <em>300° C − 400° C</em>.  The highly deformed<br>mylonite schist yielded <sup>40</sup>Ar/<sup>39</sup>Ar ages <em>(245.8±1.7)Ma </em>and <em>(238.5±2.6)</em>Ma for muscovite and biotite, respectively, indicating that the shear deformation occurred during the Early- Mid Triassic. Combined with comprehensive analysis of regional geology and petrology, the authors hold that the age of ductile shear deformation represents the time of Triassic orogeny in the ZTB. The oroginic activity was probably related to the oblique collision between the South Qilian block and the Oulongbuluke block after the closure of the northermost Paleo-Tethys ocean.</p>

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