Tethys tectonic evolution and its bearing on the distribution of important mineral deposits in the Sanjiang region, SW China

ESR signal intensity of quartz in the fine-silt fraction of riverbed sediments from the Yangtze River: a provenance tracer for suspended particulate matter

“…8a-c). Clastic sediments from QY yield Proterozoic to upper Paleozoic zircon ages (Wang et al 2000;Deng et al 2014) that are consistent with the medium ESR signal intensities observed in the fine-silt fraction. On the other hand, coarse clastic sediments or Mesozoic granite-granodiorite may have contributed to low ESR signal intensities in the sand fraction, although it is difficult to specify the source rock of each fraction due to the structural complexity of QY (Reid et al 2005a).…”

“…The Yidun Arc, which occupies a large part of QY, is composed of Paleozoic melange and Permian-Tertiary shales and sandstones that yield upper Paleozoic to Proterozoic zircon ages (Wang et al 2000;Reid et al 2005b;Deng et al 2014); these ages are consistent with medium ESR signal intensities of~8.…”

Double-layer structure of the crust beneath the Zhongdian arc, SW China: U–Pb geochronology and Hf isotope evidence

“…Preliminary isotopic dating indicates that the volcanic rocks formed between ca. 230 and 218 Ma (Hou et al, 2004b(Hou et al, , 2007Wang et al, 2013b;Deng et al, 2014;Yang et al, 2014). The Zhongdian arc, which is the southern part of the Yidun arc, contains many Late Triassic intermediate-felsic porphyritic intrusions and associated andesites.…”

Zircon U–Pb ages, Hf isotope data, and tectonic implications of Early–Middle Triassic granitoids in the Ailaoshan high-grade metamorphic belt of Southeast Tibet

“…Lhasa-Western Burma blocks from the northeastern margin of the Gondwana continent contributed to the opening of the Paleo-, Meso-, and Neo-Tethyan Ocean, respectively (Metcalfe 2006(Metcalfe , 2013Deng et al 2014). The subduction of the Tethyan oceanic plates and the collisions and accretions of these micro-continental blocks to the southern margin of the Eurasian Plate resulted in the formation of several suture zones and magmatic arcs (Fig.…”

“…Subsequently, the collision of the eastern Fig. 1 a Distribution of principal continental blocks of Southeast Asia (modified after Deng et al 2014); b simplified geological map of Sanjiang region (modified after Liu et al 2012b;Zi et al 2013;Deng et al 2014). ALSF Ailaoshan fault, DBFF Dien Bien Phu fault, LMSF Longmenshan fault, NTHF Nantinghe fault, RRF Red River fault, XSHF Xianshuihe fault, XJF Xiaojiang fault Qiangtang-Simao-Indochina and Yangtze blocks resulted in collision-related magmatism, metamorphism, and deformation (Zhu et al 2011;Liu et al 2012bLiu et al , 2014Liu et al , 2015aZi et al 2012cZi et al , 2013Lai et al 2014a).…”