Generation of peraluminous granitic magma in a post-collisional setting: A case study from the eastern Qilian orogen, NE Tibetan Plateau

2016 ◽  
Vol 36 ◽  
pp. 28-45 ◽  
Author(s):  
He Yang ◽  
Hongfei Zhang ◽  
Biji Luo ◽  
Zhong Gao ◽  
Liang Guo ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Granitic Magma ◽  
Qilian Orogen ◽  
Ne Tibetan Plateau

Early Paleozoic intrusive rocks from the eastern Qilian orogen, NE Tibetan Plateau: Petrogenesis and tectonic significance

Lithos ◽  
2015 ◽  
Vol 224-225 ◽  
pp. 13-31 ◽  
Author(s):  
He Yang ◽  
Hongfei Zhang ◽  
Biji Luo ◽  
Jie Zhang ◽  
Ziliang Xiong ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Early Paleozoic ◽  
Tectonic Significance ◽  
Intrusive Rocks ◽  
Qilian Orogen ◽  
Ne Tibetan Plateau

scholarly journals Paleoearthquakes Constrained by Stratigraphic Sequences of Different Drainages Since Late Pleistocene: A Case Study Along the Gulang Fault, NE Tibetan Plateau

2021 ◽  
Vol 9 ◽  
Author(s):  
Shumin Liang ◽  
Wenjun Zheng ◽  
Dongli Zhang ◽  
Gan Chen ◽  
Lei Duan ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Late Pleistocene ◽  
Active Faults ◽  
High Quality ◽  
Event Sequences ◽  
Stratigraphic Sequences ◽  
Ne Tibetan Plateau ◽  
Rupture Behavior

Paleoearthquake data obtained from fault trenching are essential for rebuilding the rupture history and understanding the rupture behavior of active faults. However, due to the lack of attention to stratigraphic sequences, the usual multiple trench constraining method may result in uncertainties of paleoearthquake sequences. In this study, we proposed an improved constraining method to generate stratigraphic sequences from multiple trenches of different drainages to obtain a paleoearthquake sequence of the Gulang fault. Single-trench stratigraphic sequences were built up by nineteen trenches excavated along the fault. Based on stratigraphic characteristics, we found the strata sedimented around the fault were derived from five drainages. The single-trench sequences were divided into five drainages to establish the composite sequence of multiple trenches through the correlation of stratigraphic units. Meanwhile, we used high-quality event indicators to pick out very likely earthquakes. Coupled with the dating samples, the events were used to determine the earthquake horizons in the composite sequence and to constrain the numbers and ages of events in each drainage. After combining the event sequences, six paleoearthquakes were determined along the Gulang fault since the late Pleistocene. Their occurrence timings are 13,700–10,400, 10,400–10,200, 8,560–7,295, 5,825–4,810, 4,285–3,200, and 2,615–2,240 a B.P. And their different rupture scenarios indicate that the fault might be composed of two rupture segments.

Formation of lake dunes in an intramontane basin: A case study from Cuona Lake, on the Qinghai-Tibetan Plateau

2021 ◽  
Vol 52 ◽  
pp. 100715
Author(s):  
Hanlin Jiang ◽  
Xiaohong Sun ◽  
Zhengyi Yao ◽  
Xiaoyang Wu ◽  
Xinyi Liu ◽  
...  
Keyword(s):  
Tibetan Plateau

Generation of coeval metaluminous and muscovite-bearing peraluminous granitoids in the same composite pluton in West Qinling, NE Tibetan Plateau

Lithos ◽  
2019 ◽  
Vol 344-345 ◽  
pp. 374-392 ◽  
Author(s):  
Jun-Qiang Hu ◽  
Xiao-Wei Li ◽  
Ji-Feng Xu ◽  
Xuan-Xue Mo ◽  
Fang-Yue Wang ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
West Qinling ◽  
Ne Tibetan Plateau
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