A temporal link between the Emeishan large igneous province (SW China) and the end-Guadalupian mass extinction

Trace element compositions of apatite from the middle zone of the Panzhihua layered intrusion, SW China: Insights into the differentiation of a P- and Si-rich melt

“…It comprises voluminous continental flood basalts, mafic-ultramafic intrusions, felsic plutons and subordinate picrite and mafic dikes. The~260 Ma Emeishan LIP is widely held to be due to melting of a mantle plume (Chung and Jahn, 1995;He et al, 2003;Xu et al, 2001Xu et al, , 2004Zhou et al, 2002). Diverse~260 Ma igneous rocks are exposed in the Panxi region, the central part of the Emeishan LIP (Fig.…”

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

“…The Permian is marked by the presence of four LIPs that cluster in eastern Asia, namely the Siberian traps (251 Ma, Kamo et al, 2003), Emeishan basalts (~260 Ma, He et al, 2007;Shellnutt et al, 2012;Xu et al, 2008;Zhong et al, 2014;Zhou et al, 2002), Tarim basalts (280-290 Ma, Wei et al, 2014) and Panjal traps (~290 Ma; Shellnutt et al, 2014). Interestingly, a number of major global events occurred almost simultaneously during the late Paleozoic, including the double (Permian-Triassic and end-Guadalupian) mass extinctions, ocean superanoxia, sharp C and Sr isotopic excursions, sea-level drop and Illawara geomagnetic reversal (Borisenko et al, 2006;Isozaki, 2009).…”

Igneous Rock Associations 16. The Late Permian Emeishan Large Igneous Province

“…In spite of its stature as a 'smaller' large igneous province, the ELIP is an important geological feature of SW China, not only because it hosts a number of Fe-Ti-V oxide and Ni-Cu-(PGE) sulphide deposits, but is also contemporaneous with the latest period of the Late Capitanian-Early Wuchiapingian mass extinction (i.e. end-Guadalupian) indicating that there may be a link between the two (Zhou et al 2002a;Ganino and Arndt 2009;Sun et al 2010;Shellnutt et al 2012). Beyond the economic and biogeological significance, the ELIP contains a diverse set of volcanic and plutonic igneous rocks (i.e.…”

“…Compared to the end-Permian mass extinction, the end-Guadalupian mass extinction (~260 Ma) affected fewer genera but was contemporaneous with the earliest eruption of the Emeishan flood basalts, and as a consequence is considered to have been the cause of, or at least contributed to, the decline in biota at that time (Zhou et al 2002a;Wignall 2005;He et al 2007;Retallack and Jahren 2008;Ganino and Arndt 2009). If atmospheric composition is to be affected by magmatism then emplacement rates have to be high.…”