... et al., 1997 ; Zhang et al., 2004 ). A granite body from the Mabja area ( Schärer et al., 1986 ) is essentially undeformed and postdates the main tectonic fabric of the area ( Lee et al., 2004 ). In contrast, the Malashan and Kangmar granites form cores of metamorphic domes and are strongly...

...Li-E. Gao; Lingsen Zeng; Paul D. Asimow Abstract Most of the Himalayan Cenozoic leucogranites are products of partial melting of metapelite sources. In the Malashan-Gyirong area (southern Tibet), the geochemical compositions of leucogranites define two groups with distinct whole-rock major elements...

... that the leucogranites are peraluminous granites. Compared to Group A, most Group B samples have higher CaO (>1.0 wt%) ( Fig. 4C ). These characteristics are similar to those in the two groups of leucogranites from the Malashan-Gyirong area, which represent melts derived from fluid-absent melting (Group A) and fluid...

... the subduction of pelite. Song et al. (2009) studied the tectonic evolution of early Palaeozoic high-pressure metamorphic rocks in the North Qilian Mountains of China and obtained peak metamorphic conditions of 2.6 GPa and 813 K for metapelite. Tsuno et al. (2012) suggested that the subduction depths...

...., 1986 ; Watts et al., 2005 ), and six of these domes have been studied in detail. Of the six previously studied domes, Changgo ( Larson et al., 2010 ) Malashan ( Aoya et al., 2005 ; Kawakami et al., 2007 ; Gao et al., 2013 ; Gao and Zeng, 2014 ), Yardoi ( Aikman et al., 2008 ; Zeng et al., 2009...

.... Because the Cuonadong pluton is a typical example of leucogranitic domes in the Tethyan Himalayas and contains Be and W/Sn mineralizations, it follows that other domes may contain similar resources. To the north of the Cuonadong pluton, one of the largest antimony (Sb) deposits in China is currently being...

... to the upper detachment in at least ~ 3 Ma. We confirm the correlation of the two detachments in the Yalaxiangbo dome with the STDS exposed at the bottom the THS in the frontal part of the belt and in southern Tibet. This study was financially supported by the National Science Foundation of China...

...Jian Zhang; Chengwei Yang; Lifu Zhao; Cheng Zhang; Hongxiang Yang; Tianjiao Lu; Jia Feng; Ran Hao; Xiaoyu Chen; Junlai Liu Abstract As a part of the Columbia supercontinent, the North China craton is an ideal object for studying the evolution of supercontinent assembly and the mechanism...

... electron microscope (SEM). U–Pb dating was conducted on selected zircon crystals using a LA-MC-ICP-MS at the State Key Laboratory of Geological Processes and Mineral Resources (GPMR) at the China University of Geosciences. The diameter of the laser beam was 32 μm, and the spot ablation depth was 20–40 μm...

...-absent melting ( F ig . 6C ). Figure 6. Diagrams illustrating different modes of melting for representative Himalayan leucogranite plutons from the Malashan, Cona, Everest, and Kung Co regions. ( A ) Rb/Sr versus Ba. Experimental trends for fluid-absent muscovite dehydration melting [Mus (FA...

... ; Khanal et al., 2020 ). The North Himalayan gneiss domes include the Malashan, Lhagai Kangri, Mabja, Sakya, Kangmar, Ramba, and Yardoi gneiss domes within the Tethyan Himalayan Sequence, south of the Indus-Yarlung suture zone and north of the South Tibetan detachment system ( Fig. 1A ). For each...

..., Brno, Czech Republic). Zircon and monazite U-(Th)-Pb isotopes and trace-element analysis were performed simultaneously on an Agilent 7500 ICP-MS system equipped with a 193 nm ArF-excimer laser at the Wuhan SampleSolution Analytical Technology Co., Ltd., China. The spot size and frequency of the laser...

... this but highly discordant. A weighted average of the 207-corrected ages from all seven rim analyses yields an age of 16.2 ± 0.4 Ma (Fig. 4D) . Figure 1. Regional tectonic map of central Himalaya orogen showing location of Mabja, Kangmar, Kampa, and Malashan domes. GKT—Gyirong-Kangmar thrust fault...

... and their associated granites have been termed the Kangmar, Kampa (intruded by the Kampa granite), Sakya (intruded by the Kuday, Wing, Kua, Lijun, Donggong, Gomdre, Kouwu, and Mabja granites), Lhagoi Kangri, Malashan (intruded by the Cuobu, Malashan, and Paiku granites), Gurla Mandhata, and Leo Pargil (NW Himalaya...

.... This work was financially supported by the Second Tibetan Plateau Scientific Expedition and Research Program (STEP, grant no. 2019QZKK0701-02); the National Key Research and Development Project of China (grant no. 2016YFC0600301), the National Natural Science Foundation of China (grant nos. 91962109...

... Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China. Subduction of continental crust can occur after the oceanic crust between two continental terranes has been consumed, as long as the drag from the subducting basaltic plate continues [ 1 , 5...

... metal mineralization have not been well-constrained. In this work, we report zircon U-Pb ages, trace elements, Hf-O isotopes, and whole-rock elemental and Sr-Nd-Hf isotopic data on six high-silica granitic intrusions from the Southern Great Xing’an Range Metallogenic Belt (SGXRMB), NE China, with a view...

..., is one of the largest hard-rock type lithium deposits in China. The lithium-enriched pegmatites in Jiajika are hosted in the amphibolite facies metasedimentary rocks in the mantle of the Jiajika gneiss dome. However, the metamorphic evolution of Jiajika is poorly constrained. In this study, we carried...

... debated, especially sediment-derived granites, which are often treated as a geochemical end-member of the continental crust. In the Yunnan region of South China, we identify the occurrence of pure sediment-derived granite in a subduction system. The suite of strongly peraluminous granite reported herein...

... than the early Miocene. † present address: State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, PR China; [email protected] . Twenty-two samples were collected, and the sample locations, the zircon and monazite ages...