Mesozoic and cenozoic volcanic rocks from central and southern Tibet:39Ar-40Ar dating, petrological characteristics and geodynamical significance

Petrogenesis of the Early Eocene adakitic rocks in the Napuri area, southern Lhasa: Partial melting of thickened lower crust during slab break-off and implications for crustal thickening in southern Tibet

“…The IYTS marks the closure of the Tethys, and lies on the southern boundary of an east-west-trending Andean arc-type calc-alkaline magmatic zone (including the Yeba, Sangri, Linzizong volcanic successions and the Gangdese batholith) in the Lhasa block ( Fig. 1a) (e.g., Coulon et al, 1986;Mo et al, 2007;Zhu et al, 2008).…”

Late Cretaceous crustal growth in the Gangdese area, southern Tibet: Petrological and Sr–Nd–Hf–O isotopic evidence from Zhengga diorite–gabbro

“…The southern Lhasa sub-block (the Gangdese area) may represent the southernmost part of the Asian craton and is characterized by extensive intrusive and volcanic rocks, which were generated in the Mesozoic-Cenozoic. They are composed of Late Triassic-Early Tertiary calc-alkaline granitoids (Debon et al, 1986;Harris et al, 1990;Chung et al, 2005;Wen et al, 2008a,b;Ji et al, 2009a) and Cretaceous-Tertiary terrestrial volcanic sequences of the Linzizong Group (Maluski et al, 1982;Coulon et al, 1986;Pearce and Mei, 1988;Mo et al, 2003;Zhou et al, 2004;Chung et al, 2005;He et al, 2007;Lee et al, 2007;Mo et al, 2007Mo et al, , 2008; Lee et al, 2009), Mesozoic volcanic rocks of the Lower Jurassic Yeba Group (Dong et al, 2006;Pan et al, 2006;Zhu et al, 2008) and Upper Jurassic-Upper Cretaceous (136-93 Ma) Sangri Group ( Fig. 1c) Zhu et al, 2009;Kang et al, 2010).…”

Temporal–spatial distribution and tectonic implications of the batholiths in the Gaoligong–Tengliang–Yingjiang area, western Yunnan: Constraints from zircon U–Pb ages and Hf isotopes

“…Accompanied by the deformation and uplift, plutonism and volcanism occurred in the interior of the plateau, providing opportunities to characterize the magmatic response during the evolution of the Tibetan Plateau (e.g., Chung et al, 2005). Dating these magmatic rocks and elucidating their genesis are therefore pivotal for deciphering tectonic history, including rifting, shearing event and closure of Meso-Tethyan and Neo-Tethyan oceans and collision between different blocks that amalgamated (Scharer et al, 1984;Xu et al, 1985;Coulon et al, 1986;Pearce and Mei, 1988;Turner et al, 1996;Ding et al, 2003;Booth et al, 2004;Xu et al, 2008;Chung et al, 2005;Wen et al, 2008;Chiu et al, 2009;Ji et al, 2009;Zhu et al, 2009). Much data are now available for post-collisional magmatism in the Lhasa Terrane, in the frontal collisional belt (Fig.…”