...Jian-Jun Fan; Yaoling Niu; Yi-Ming Liu; Yu-Jie Hao Abstract Knowledge of the timing of the closure of the Meso-Tethys Ocean as represented by the Bangong–Nujiang Suture Zone, i.e., the timing of the Lhasa-Qiangtang collision, is critical for understanding the Mesozoic tectonics of the Tibetan...

... along the Bangong-Nujiang suture zone in south-central Tibet. Diamond grains are 100–300 µm, pale yellow and reddish-orange to colorless, commonly anhedral in habit, and range in morphology from elongated to octahedral and subhedral crystals. They display a characteristic shift in the Raman spectra...

... of the geodynamics of the Tethyan tectonic evolution. The study of intraplate oceanic-island fragments in the Bangong–Nujiang Suture Zone of Northern Tibet, which are remnants of the oceanic crust, is important for determining the nature and tectonic evolution of the Bangong–Nujiang Tethyan Ocean. Here, we present...

...Figure 3. Sedimentary model demonstrating that the Bangong-Nujiang Suture Zone (BNSZ) was in the same old land together with the Lhasa terrane (LS) and the Qiangtang terrane (QT) during the Early to Middle Triassic (T 1 -T 2 ) that was rifted as a continental rift at the end of the Late Triassic...

...Wan-Long Hu; Qiang Wang; Gong-Jian Tang; Yue Qi; Jun Wang; Zong-Yong Yang; Peng Sun Abstract Mafic dikes are generally emplaced in extensional tectonic settings and provide key information regarding deep mantle processes and sources. The Bangong-Nujiang suture zone was formed by the collision...

...Yue Tang; Qing-Guo Zhai; Sun-Lin Chung; Pei-Yuan Hu; Jun Wang; Xu-Chang Xiao; Biao Song; Hai-Tao Wang; Hao-Yang Lee Abstract The Meso-Tethys was a late Paleozoic to Mesozoic ocean basin between the Cimmerian continent and Gondwana. Part of its relicts is exposed in the Bangong–Nujiang suture zone...

... of the Tibetan Plateau before the India-Eurasia collision. The timing of the Lhasa–Qiangtang collision was mainly constrained by the ophiolite and magmatic rocks in previous studies, with only limited constraints from the sedimentary rocks within and adjacent to the Bangong–Nujiang suture zone. In the middle...

... basin (31°00′–32°40′, 84°30′–87°05′) in central Tibet, which crosses the southern margin of the Qiangtang block, the Bangong-Nujiang suture zone, and the northern half of the Lhasa block, is characterized by up to 5000 m of continental-marine clastic-carbonate sediments and is ideally positioned...

.... In this study, we present geological, geochronological, geochemical, and zircon isotopic data from Cretaceous magmatic rocks and combine these with previously published data within the central Bangong-Nujiang suture zone in the north-central Tibetan Plateau. The integrated data update the regional tectonic...

... two episodes of Early Jurassic gabbros from the Kaqiong terrane, a microblock within the Bangong–Nujiang suture zone. Early gabbros (ca. 197–191 Ma) appear as lenses in the basement complex and were overprinted by amphibolite/granulite-facies metamorphism at ca. 180 Ma. Later undeformed hornblende...

... ppm, Sr/Y = 54–68), indicating that they originated from the partial melting of a thickened lower crust in a continental arc setting. Our results, in combination with a synthesis of tectonomagmatism along the Bangong-Nujiang suture zone, provide convincing evidence for subduction of an oceanic plateau...

...Ming Zheng; Yang Song; Haifeng Li; Carl Guilmette; Juxing Tang; Qing Zhang; Zhibo Liu; Faqiao Li Abstract The Bangong–Nujiang suture zone (BNSZ), which separates the Gondwana-derived Qiangtang and Lhasa terranes, preserves limited geological records of the Bangong–Nujiang Ocean (BNO). The timing...

...-Nujiang suture zone and its flanks, suggest that magmatic activity associated with the subduction of Bangong-Nujiang Tethyan oceanic lithosphere occurred from the Middle Triassic to Early Cretaceous. This study focused on the Dulongjiang pluton ( Fig. 1B ), a NW-SE–elongated intrusion, parallel...

...Figure 1. Geographic and geologic setting of the Labuco area. (A) Tectonic outline of the Tibetan Plateau (ovals with numerals). (B) Simplified geological map showing the ophiolitic rocks within the Bangong-Nujiang suture zone of central Tibet ( Wang et al., 2013 ; Zhu et al., 20015). (C...