Инд. авторы: Sobolev A.V, Arndt N.T., Krivolutskaya N.A., Kuzmin D.V., Sobolev S.V.
Заглавие: The origin of gases that caused the permian-triassic extinction
Библ. ссылка: Sobolev A.V, Arndt N.T., Krivolutskaya N.A., Kuzmin D.V., Sobolev S.V. The origin of gases that caused the permian-triassic extinction // Volcanism and Global Environmental Change. - 2015. - P.147-163. - ISBN 9781107415683; 9781107058378.
Внешние системы: DOI: 10.1007/9781107415683.011; SCOPUS: 2-s2.0-84952933522; WoS: 000359981400011;
Реферат: eng: Even though a causal relationship between the emplacement of the Siberian large igneous province (LIP) and the end-Permian mass extinction remains unproven, the synchronicity of the two events, each the largest of its kind, makes it extremely likely that the magmatism was linked directly to the biological crisis. Recent dating has placed the eruption of the flood basalts in the interval 252.4 to 251.2 Ma (Kamo et al., 2003; White and Saunders, 2005; Svensen et al., 2009; and other chapters in this volume), which almost entirely overlaps that of the mass extinction. Song et al. (2012) identified two distinct extinction events: one at the end-Permian and the other at the early Triassic, each of which contributed to the mass extinction, and both within the time frame of the eruptions. The cause of the mass extinctions was probably the release of gases that dramatically increased global temperatures, upset the chemical balance within the oceans, destroyed the ozone layer or were sufficiently toxic to destroy life both on land and in the oceans (e.g. Wignall et al., 2009). There are two probable sources of these gases, both related with the Siberian LIP. First, the mantle source - the Siberian plume could potentially release large amounts of CO2 and Cl, if it contains altered recycled oceanic crust (Sobolev et al., 2011). These gases are released either by explosive eruptions that typically occurred early in the magmatic episode, or by degassing of erupted or intruded magmas during the major magmatic event. © Cambridge University Press 2015.
Ключевые слова: NORILSK REGION; MASS EXTINCTION; PLATEAU BASALTS; SUBALKALINE PICROBASALTS; MANTLE; MELT INCLUSIONS; FLOOD-BASALT PROVINCE; ORE-BEARING INTRUSIONS; LARGE IGNEOUS PROVINCES; SIBERIAN TRAPS;
Издано: 2015
Физ. характеристика: с.147-163