Source, evolution and emplacement of Permian Tarim Basalts: Evidence from U–Pb dating, Sr–Nd–Pb–Hf isotope systematics and whole rock geochemistry of basalts from the Keping area, Xinjiang Uygur Autonomous region, northwest China

The Early Permian Tarim Large Igneous Province: Main characteristics and a plume incubation model

“…1a), intruding the upper Carboniferous sedimentary rocks with the contact dipping 50-60°outward. Pinkish and medium-to coarse-grained granites are composed of alkali feldspar, quartz, hornblende and brown biotite, with accessory minerals including zircon, Li et al, 2007Li et al, , 2011Liu et al, in press;Shangguan et al, 2011;Tian et al, 2010;Wei and Xu, 2011;Wei et al, 2014;Yang et al, 1996Yang et al, , 2006bYu, 2009;Yu et al, 2011a, b;Zhang et al, 2008aZhang et al, , 2009Zhang et al, , 2010bZhang et al, , 2012Zhang et al, , 2013 apatite and Fe-Ti oxides. SHRIMP U-Pb zircon data yield crystallization age of 275-277 Ma (Zhang et al, 2010b).…”

Zircon U–Pb ages and Hf–O isotopic signatures of the Wajilitag and Puchang Fe–Ti oxide–bearing intrusive complexes: Constraints on their source characteristics and temporal–spatial evolution of the Tarim large igneous province

“…The volcanic succession ranges from several hundred meters to 3.0 km thick with an estimated average thickness of ~1 km (Tian et al, 2010;Yu et al, 2011b). The sequence in the northwestern Tarim Craton has been divided into the Kupukuziman Formation and the overlying Kaipaizileike Formation, with significant exposures found in the Sishichang and Yingan sections at the northeast of Keping area in the northwestern TLIP, which are the most intensively sampled and analyzed regions of the Tarim flood basalts Zhang et al, 2010bZhang et al, , 2012c (Tian et al, 2010;Yu et al, 2011a). The sequences are tentatively considered a counterpart of the Kupukuziman Formation by means of the regional stratigraphic, petrological and geochemical correlation.…”

“…Data sources: Kimberlitic rocks (Zhang et al, 2013);early Permian basalts(Li et al, 2012c; Tian et al, 2010;Yu et al, 2011b;Zhang et al, 2010aZhang et al, , 2012cZhou et al, 2009); Fields for northern Tarim basement are based on data fromLong et al (2011a) and references therein.The green bar indicates range of mantle-equilibrated zircon in (b) and (c)…”

Re-evaluating the geochronology of the Permian Tarim magmatic province: implications for temporal evolution of magmatism

“…2a and b). Flood basalts, the most significant extrusive component, have an age range from 297.4 ± 5.6 Ma (basalt zircon U-Pb date, Zhang et al 2012) to 252.3 ± 3.5 Ma (whole-rock 40 Ar-39 Ar date, Liu et al 2012), a 45 myr time span. Whether this large time period represents a continuum or distinct multiple pulses of magmatism, or simply issues with the geochronology results, is not clear.…”