Eclogites in the interior of the Tibetan Plateau and their geodynamic implications

Zhang, Kaijun; Tang, Xianfeng

doi:10.1007/s11434-009-0407-9

Cited by 81 publications

(46 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Glaucophane schists (Hennig, 1915), with volcanics and Mesozoic granite running through central Qiangtang, were also attributed to a Mid Triassic to Early Jurassic collision between North and South Qiangtang, from west to east (Zhang and Tang, 2009). Eclogites dated at 230-237 Ma were also interpreted as a Triassic suture zone, exhumed at ~220 Ma (Zhai et al, 2011).…”

Section: Qiangtang Terrane (North Tibet)mentioning

confidence: 99%

A tectonic model reconciling evidence for the collisions between India, Eurasia and intra-oceanic arcs of the central-eastern Tethys

et al. 2015

View full text Add to dashboard Cite

Section: Qiangtang Terrane (North Tibet)mentioning

confidence: 99%

A tectonic model reconciling evidence for the collisions between India, Eurasia and intra-oceanic arcs of the central-eastern Tethys

et al. 2015

View full text Add to dashboard Cite

“…1). The Shuanghu suture, which is marked by the assemblage of eclogites, metasediments, schists, gneisses and marble (Yin and Harrison, 2000;Kapp et al, 2003;Zhang and Tang, 2009;Liu et al, 2011), divides the Qiangtang Terrane into northern and southern sub-terranes. The northern and southern Qiangtang are dominated by Upper Triassic-Upper Jurassic marine deposits that are over 5000 m thick.…”

Section: Geologic Settingmentioning

confidence: 99%

Cretaceous volcanic rocks in south Qiangtang Terrane: Products of northward subduction of the Bangong–Nujiang Ocean?

Wang

et al. 2015

Journal of Asian Earth Sciences

View full text Add to dashboard Cite

“…Several issues regarding the tectonic evolution of the two sutures remain controversial [5][6][7]9,[12][13][14][15]. Zhang et al [16] suggested that the S-QT was once associated with the Lhasa terrane, separated from the N-QT by the Shuanghu-Dingqing Paleotethyan ocean before the Early Mesozoic. The southwestern and northeastern sections of the BNS, divided by the Amdo basement, have different *Corresponding author (email: shirendeng@itpcas.ac.cn) geologic features [16][17][18].…”

mentioning

confidence: 99%

“…Zhang et al [16] suggested that the S-QT was once associated with the Lhasa terrane, separated from the N-QT by the Shuanghu-Dingqing Paleotethyan ocean before the Early Mesozoic. The southwestern and northeastern sections of the BNS, divided by the Amdo basement, have different *Corresponding author (email: shirendeng@itpcas.ac.cn) geologic features [16][17][18]. These differences indicate that the Amdo basement, as the connection between the BNS and the M-QTS, is essential to the tectonic evolution of central Tibet.…”

mentioning

confidence: 99%

Finding of high-pressure mafic granulites in the Amdo basement, central Tibet

et al. 2010

View full text Add to dashboard Cite

High-pressure mafic granulites with a peak mineral assemblage of garnet + clinopyroxene + rutile + quartz were found in the Amdo basement, central Tibet. Two kinds of symplectites were identified that are composed of orthopyroxene + plagioclase ± spinel and hornblende + plagioclase around garnet, which were interpreted to develop during the retrogressing stages in the granulites. P-T estimates suggested that peak metamorphic conditions were about 860-920°C and 1.46-1.56 GPa, which retrogressed from post-peak phase at 820-890°C and 0.88-1.15 GPa to amphibolite facies at 550-670°C and 0.52-0.65 GPa. These three stages define a clockwise P-T path with near-isothermal decompression and cooling following the peak high-pressure metamorphism. This suggests that the Amdo granulites underwent an initial subduction to a deep crustal level of ~50 km and then were rapidly exhumed to a shallow crustal level (~20 km). The formation of Amdo granulites is considered to result from the arc-continent collision between the Amdo basement and the Qiangtang terrane in the middle Jurassic, which is a crucial step to the tectonic evolution of the Tibetan Plateau. high-pressure granulite, P-T path, Amdo basement, Bangong-Nujiang Suture, Tibet Citation: Zhang X R, Shi R D, Huang Q S, et al. Finding of high-pressure mafic granulites in the Amdo basement, central Tibet.

show abstract

Eclogites in the interior of the Tibetan Plateau and their geodynamic implications

Cited by 81 publications

References 41 publications

A tectonic model reconciling evidence for the collisions between India, Eurasia and intra-oceanic arcs of the central-eastern Tethys

A tectonic model reconciling evidence for the collisions between India, Eurasia and intra-oceanic arcs of the central-eastern Tethys

Cretaceous volcanic rocks in south Qiangtang Terrane: Products of northward subduction of the Bangong–Nujiang Ocean?

Finding of high-pressure mafic granulites in the Amdo basement, central Tibet

Contact Info

Product

Resources

About