AGE AND SIGNIFICANCE OF RUBY-BEARING MARBLE FROM THE RED RIVER SHEAR ZONE, NORTHERN VIETNAM

2005 ◽  
Vol 43 (4) ◽  
pp. 1315-1329 ◽  
Author(s):  
V. Garnier ◽  
D. Ohnenstetter ◽  
G. Giuliani ◽  
H. Maluski ◽  
E. Deloule ◽  
...  
Keyword(s):  
Shear Zone ◽  
Red River ◽  
Northern Vietnam

scholarly journals Structure and shearing conditions in the Day Nui Con Voi massif: Implications for the evolution of the Red River shear zone in northern Vietnam

Tectonics ◽  
2007 ◽  
Vol 26 (2) ◽  
pp. n/a-n/a ◽  
Author(s):  
R. Anczkiewicz ◽  
G. Viola ◽  
O. Müntener ◽  
M. F. Thirlwall ◽  
Igor M. Villa ◽  
...  
Keyword(s):  
Shear Zone ◽  
Red River ◽  
Northern Vietnam

scholarly journals Structural evolution of the Day Nui Con Voi metamorphic complex: Implications on the development of the Red River Shear Zone, Northern Vietnam

2008 ◽  
Vol 30 (12) ◽  
pp. 1540-1553 ◽  
Author(s):  
Meng-Wan Yeh ◽  
Tung-Yi Lee ◽  
Ching-Hua Lo ◽  
Sun-Lin Chung ◽  
Ching-Ying Lan ◽  
...  
Keyword(s):  
Shear Zone ◽  
Structural Evolution ◽  
Red River ◽  
Metamorphic Complex ◽  
Northern Vietnam

Crustal seismic structure of Red-River shear zone and surrounding area

2021 ◽  
Author(s):  
Ha Vinh Long ◽  
Hsin-Hua Huang ◽  
Le Minh Nguyen ◽  
Van Duong Nguyen ◽  
Quang Khoi Le ◽  
...  
Keyword(s):  
Shear Zone ◽  
Crustal Structure ◽  
Velocity Model ◽  
Red River ◽  
The Tibetan Plateau ◽  
Seismic Structure ◽  
Traveltime Tomography ◽  
Northern Vietnam ◽  
Head Waves ◽  
Surrounding Areas

<p>The collision between the Eurasian and Indian plates since about 65 Ma caused extensive deformation in the Tibetan Plateau and surrounding areas. Northern Vietnam located in the southeastern Himalayan syntaxis is directly influenced by the collision and extrusion through the Red River shear zone that runs from southeastern Tibet to the South China Sea. Knowledge of crustal structure characteristics in northern Vietnam and across the Red River shear zone is crucial to improve our understanding not only of seismic hazards in the region but also of the regional Himalayan tectonic evolution as a whole. Seismic tomography is one of few methods that allows to study the subsurface structures effectively. In this study, we perform a joint tomographic inversion for northern Vietnam integrating the P- and S-direct waves traveling in the crust and the head waves along the Moho waves arrival time from more than 1000 earthquakes observed by Vietnamese networks. The obtained velocity model shows a good correlation with shallow geological features but also some complexity at crustal-scale. Several velocity anomalies bounded by and across the fault zones are revealed and discussed</p><p> </p><p>Keyword: <em>Traveltime tomography, Northern Vietnam, VpVs ratio, crustal structure, Vietnam seismic network</em></p>

Bauxite to eclogite: Evidence for late Permian supracontinental subduction at the Red River shear zone, northern Vietnam

Lithos ◽  
2018 ◽  
Vol 302-303 ◽  
pp. 37-49 ◽  
Author(s):  
Nobuhiko Nakano ◽  
Yasuhito Osanai ◽  
Nguyen Van Nam ◽  
Tran Van Tri
Keyword(s):  
Shear Zone ◽  
Red River ◽  
Late Permian ◽  
Northern Vietnam

First local seismic tomography for Red River shear zone, northern Vietnam: Stepwise inversion employing crustal P and Pn waves

2013 ◽  
Vol 584 ◽  
pp. 230-239 ◽  
Author(s):  
Hsin-Hua Huang ◽  
Zhen J. Xu ◽  
Yih-Min Wu ◽  
Xiaodong Song ◽  
Bor-Shouh Huang ◽  
...  
Keyword(s):  
Shear Zone ◽  
Seismic Tomography ◽  
Red River ◽  
Northern Vietnam

Origin and age of magmatism in the Red River shear zone, Yunnan, China

1998 ◽  
Vol 43 (S1) ◽  
pp. 113-113
Author(s):  
U. Schärer ◽  
L. S. Zhang
Keyword(s):  
Shear Zone ◽  
Red River

Structure and spatial-temporal relationship of potassic magmatism linked to a continental-scale strike-slip shear zone and post-collisional Cenozoic extension

2021 ◽  
Author(s):  
junyu Li ◽  
shunyun Cao ◽  
Xuemei Cheng ◽  
Haobo Wang ◽  
Wenxuan Li
Keyword(s):  
Partial Melting ◽  
Shear Zone ◽  
Continental Crust ◽  
Red River ◽  
Compositional Variation ◽  
Continental Scale ◽  
Magmatic Rocks ◽  
Western Yunnan ◽  
Potassic Rocks ◽  
Potassic Magmatism

<p>Adakite‐like potassic rocks are widespread in post-collisional settings and provide potential insights into deep crustal or crust-mantle interaction processes including asthenosphere upwelling, partial melting, lower crustal flow, thickening and collapse of the overthickened orogen. However, petrogenesis and compositional variation of these adakite‐like potassic rocks and their implications are still controversial. Potassic magmatic rocks are abundant developed in the Jinshajiang–Ailaoshan tectono-magmatic belt that stretches from eastern Tibet over western Yunnan to Vietnam. Integrated studies of structure, geochronology, mineral compositions and geochemistry indicate adakite-like potassic rocks with different deformation are exposed along the Ailaoshan-Red River shear zone. The potassic felsic rocks formed by mixing and partial melting between enriched mantle-derived ultrapotassic and thickened ancient crust-derived magmas. The mixing of the mafic and felsic melts and their extended fractional crystallization of plagioclase, K-feldspar, hornblende and biotite gave rise to the potassic magmatic rocks. Zircon geochronology provide chronological markers for emplacement at 35–37 Ma of these adakite-like potassic rocks along the shear zone. Temperature and pressure calculated by amphibole-plagioclase thermobarometry range from 3.5 to 5.9 kbar and 650 to 750 ℃, respectively, and average emplacement depths of ca. 18 km for granodiorite within this suite. In combination with the results of the Cenozoic potassic magmatism in the Jinshajiang–Ailaoshan tectono-magmatic belt, we suggest that in addition to partial melting of the thickened ancient continental crust, magma underplating and subsequent crust-mantle mixing beneath the ancient continental crust have also played an important role in crustal reworking and strongly affected the rheological properties and density of rocks. The exhumation underlines the role of lateral motion of the Ailaoshan-Red River shear zone initiation by potassic magma-assisted rheological weakening and exhumation at high ambient temperatures within the shear zone.</p>

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