Leucogranites in Lhozag, southern Tibet: Implications for the tectonic evolution of the eastern Himalaya

Lithos ◽  
2017 ◽  
Vol 294-295 ◽  
pp. 246-262 ◽  
Author(s):  
Chunmei Huang ◽  
Zhidan Zhao ◽  
Guangming Li ◽  
Di-Cheng Zhu ◽  
Dong Liu ◽  
...  
Keyword(s):  
Tectonic Evolution ◽  
Eastern Himalaya ◽  
Southern Tibet

Southern Tibet Detachment System at Khula Kangri, Eastern Himalaya: A Large‐Area, Shallow Detachment Stretching into Bhutan?

1999 ◽  
Vol 107 (5) ◽  
pp. 623-631 ◽  
Author(s):  
M. A. Edwards ◽  
A. Pêcher ◽  
W. S. F. Kidd ◽  
B. C. Burchfiel ◽  
L. H. Royden
Keyword(s):  
Eastern Himalaya ◽  
Large Area ◽  
Southern Tibet

scholarly journals The Timing of Metamorphism, Magmatism, and Cooling in the Zanskar, Garhwal, and Nepal Himalaya

1995 ◽  
Vol 11 ◽  
Author(s):  
M. P. Searle
Keyword(s):  
Hanging Wall ◽  
Crustal Thickening ◽  
Indian Plate ◽  
Eastern Himalaya ◽  
Normal Faults ◽  
The Tibetan Plateau ◽  
Main Central Thrust ◽  
Southern Tibet ◽  
Peak Metamorphism ◽  
Exhumation Rates

Following India-Asia collision, which is estimated at ca. 54-50 Ma in the Ladakh-southern Tibet area, crustal thickening and timing of peak metamorphism may have been diachronous both along the Himalaya (pre-40 Ma north Pakistan; pre-31 Ma Zanskar; pre-20 Ma east Kashmir, west Garhwal; 11-4 Ma Nanga Parbat) and cross the strike of the High Himalaya, propagating S (in Zanskar SW) with time. Thrusting along the base of the High Himalayan slab (Main Central Thrust active 21-19 Ma) was synchronous with N-S (in Zanskar NE-SW) extension along the top of the slab (South Tibet Detachment Zone). Kyanite and sillimanite gneisses in the footwall formed at pressure of 8-10 kbars and depths of burial of 28-35 km, 30- 21 Ma ago, whereas anchimetamorphic sediments along the hanging wall have never been buried below ca. 5-6 km. Peak temperatures may have reached 750 on the prograde part of the P-T path. Thermobarometers can be used to constrain depths of burial assuming a continental geothermal gradient of 28-30 °C/km and a lithostatic gradient of around 3.5-3.7 km/kbar (or 0.285 kbars/km). Timing of peak metamorphism cannot yet be constrained accurately. However, we can infer cooling histories derived from thermochronometers using radiogenic isotopic systems, and thereby exhumation rates. This paper reviews all the reliable geochronological data and infers cooling histories for the Himalayan zone in Zanskar, Garhwal, and Nepal. Exhumation rates have been far greater in the High Himalayan Zone (1.4-2.1 mm/year) and southern Karakoram (1.2-1.6 mm/year) than along the zone of collision (Indus suture) or along the north Indian plate margin. The High Himalayan leucogranites span 26-14 Ma in the central Himalaya, and anatexis occurred at 21-19 Ma in Zanskar, approximately 30 Ma after the collision. The cooling histories show that significant crustal thickening, widespread metamorphism, erosion and exhumation (and therefore, possibly significant topographic elevation) occurred during the early Miocene along the central and eastern Himalaya, before the strengthening of the Indian monsoon at ca. 8 Ma, before the major change in climate and vegetation, and before the onset of E-W extension on the Tibetan plateau. Exhumation, therefore, was primarily controlled by active thrusts and normal faults, not by external factors such as climate change.

Conglomerates record the tectonic evolution of the Yarlung-Tsangpo suture zone in southern Tibet

2004 ◽  
Vol 226 (1) ◽  
pp. 235-246 ◽  
Author(s):  
Aileen M. Davis ◽  
Jonathan C. Aitchison ◽  
Badengzhu ◽  
Luo Hui
Keyword(s):  
Tectonic Evolution ◽  
Suture Zone ◽  
Southern Tibet ◽  
Yarlung Tsangpo

scholarly journals Zircon U–Pb and Hf isotopic constraints from eastern Transhimalayan batholiths on the precollisional magmatic and tectonic evolution in southern Tibet

2009 ◽  
Vol 477 (1-2) ◽  
pp. 3-19 ◽  
Author(s):  
Han-Yi Chiu ◽  
Sun-Lin Chung ◽  
Fu-Yuan Wu ◽  
Dunyi Liu ◽  
Yu-Hsuan Liang ◽  
...  
Keyword(s):  
Tectonic Evolution ◽  
Southern Tibet ◽  
Isotopic Constraints

Frequency and lapse time dependent seismic attenuation in eastern Himalaya and southern Tibet

2016 ◽  
Vol 85 (3) ◽  
pp. 1709-1722 ◽  
Author(s):  
Sagar Singh ◽  
Chandrani Singh ◽  
Rahul Biswas ◽  
Arun Singh
Keyword(s):  
Seismic Attenuation ◽  
Time Dependent ◽  
Eastern Himalaya ◽  
Lapse Time ◽  
Southern Tibet

Eocene–Oligocene granitoids in southern Tibet: Constraints on crustal anatexis and tectonic evolution of the Himalayan orogen

2012 ◽  
Vol 349-350 ◽  
pp. 38-52 ◽  
Author(s):  
Zeng-Qian Hou ◽  
Yuan-Chuan Zheng ◽  
Ling-Sen Zeng ◽  
Li-E Gao ◽  
Ke-Xian Huang ◽  
...  
Keyword(s):  
Tectonic Evolution ◽  
Crustal Anatexis ◽  
Southern Tibet ◽  
Himalayan Orogen

Fractal and b-Value Mapping in Eastern Himalaya and Southern Tibet

2009 ◽  
Vol 99 (6) ◽  
pp. 3529-3533 ◽  
Author(s):  
C. Singh ◽  
A. Singh ◽  
R. K. Chadha
Keyword(s):  
B Value ◽  
Eastern Himalaya ◽  
Southern Tibet
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