Results 181 to 190 of about 4,058 (252)

Miocene granitic magmatism constrains the early E-W extension in the Himalayan Orogen: A case study of Kung Co leucogranite

, 2021
Himalayan leucogranites record the tectonic evolution of the Himalayan Orogen and provide a window to explore the deep dynamic processes. In this study, we conducted petrological, geochronological, and geochemical investigations of the Kung Co ...
Yunsong Fan, Jinjiang Zhang, Chao Lin, Xiaoxian Wang, Bo Zhang   +4 more
semanticscholar   +1 more source

Activity of the south Tibetan detachment system: Constraints from leucogranite ages in the eastern Himalayas

Geological Journal, 2020
Himalayan leucogranites are widely distributed in the North Himalayan gneiss dome (NHGD) and at the top of the Greater Himalayan Crystalline Complex (GHC) and are generally controlled by detachment faults.
Linkui Zhang, Guangming Li, Huawen Cao, Zhi Zhang, Suiliang Dong, W. Liang, Jiangang Fu, Yong Huang, Xiang-biao Xia, Zuowen Dai, Q. Pei, Shou‐ting Zhang   +11 more
semanticscholar   +1 more source

Petrochemical characteristics of leucogranite and a case study of Bengbu leucogranites

Science Bulletin, 2009
Leucogranites have a relatively narrow variation in SiO2 content (70.5%–75.5%). Giving similar SiO2 content, leucogranites have relatively higher Al2O3 (>13.5%) and lower TFeO + MgO (
SuShu Guo, ShuGuang Li
openaire   +1 more source

Crustal melting in a protracted hot setting in the Altai Orogen (NW China): Evidence from Permian leucogranite dykes in the metamorphic belt

, 2021
Numerous leucogranite dykes, and spatially associated high-grade metamorphic rocks, are well-preserved in the Chinese Altai orogenic belt. Integrated petrological, geochronological, and geochemical results of the leucogranite dykes are presented to ...
Guohui Hu, Wei Wang, W. Xiao, C. Wei, Yue Zhao, Jiangnan Liu   +5 more
semanticscholar   +1 more source

Geochronology and petrogenesis of the Yuanbaoshan leucogranite in southeast Inner Mongolia: Implications for the collision between the Sino-Korean and Siberian paleo-plates

, 2021
Leucogranite, typically as an important signature of continent-continent collision, records valuable information on evolution of continental crust and provides an insight into the geodynamic processes during continental collision. Here, we present zircon
Shuo Zhao, Jianfeng Liu, Yuting Zhang, Jin Zhang, Wenliang Xu, Jinyi Li   +5 more
semanticscholar   +1 more source

Petrogenesis of highly fractionated leucogranite in the Himalayas: The Early Miocene Cuonadong example

Geological Journal, 2021
There has been considerable debate concerning the petrogenesis of Cenozoic highly felsic, strongly peraluminous, leucogranites within the Himalayan–Tibetan orogen, with two contrasting viewpoints regarding their origin, either as primary melts from ...
Xi Chen, Gangyang Zhang, Rui Gao, Dingchuan Zhang, Bing Yang   +4 more
semanticscholar   +1 more source

U–Pb zircon geochronology of the Daraban leucogranite, Mawat ophiolite, Northeastern Iraq: A record of the subduction to collision history for the Arabia–Eurasia plates [PDF]

, 2017
The Mawat ophiolite is part of the Mesozoic Neo-Tethyan ophiolite belt of the Middle East and is located in the Zagros Imbricate Zone of Iraq. It represents fossil fragments of the Neo-Tethyan oceanic lithosphere within the Alpine collisional system ...
Y. Mohammad, D. Cornell
semanticscholar   +2 more sources

Pervasive Miocene melting of thickened crust from the Lhasa terrane to Himalaya, southern Tibet and its constraint on generation of Himalayan leucogranite

, 2020
The Oligocene to Miocene period is one of the most important stages during the formation and evolution of the Tibetan Plateau which generated the tectonic framework similar to the present.
Weiqiang Ji, Fu-Yuan Wu, Xiaochi Liu, Zhi‐Chao Liu, Chang Zhang, Tong Liu, Jian‐Gang Wang, S. Paterson   +7 more
semanticscholar   +1 more source

Experimental Crystallization of Leucogranite Magmas

Journal of Petrology, 1995
Abstract Both crystallization and melting experiments have been carried out on two natural, biotite-muscovite (DK) and tourmaline-muscovite (GB) High Himalayan leucogranites (HHL) at 4 kbar, logfO2 = FMQ−0·5, aH2O = 1−0⋅03, and at five temperatures between 803 and 663°C H2O contents of the quenched glasses were analysed by ion ...
BRUNO SCAILLET, MICHEL PICHAVANT, JACQUES ROUX   +2 more
openaire   +1 more source

Crustal generation of the Himalayan leucogranites

Tectonophysics, 1987
Abstract Detailed studies of the Himalayan two-mica leucogranites, such as the Manaslu pluton, indicate that they have very uniform mineralogical, petrological and structural characteristics. One can relate their occurrence to the thickest zones of the underlying Tibetan Slab.
P. Le Fort, M. Cuney, C. Deniel, C. France-Lanord, S.M.F. Sheppard, B.N. Upreti, P. Vidal   +6 more
openaire   +1 more source