Explosive eruption of El Chichón volcano Mexico disrupted 6 th century Maya civilization and contributed to global coolingReportar como inadecuado




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1 Utrecht University 2 Center for Isotope Research 3 Laboratory of Radio and Environmental Chemistry 4 GEODE - Géographie de l-environnement 5 El Colegio de la Frontera Sur

Abstract : A remarkably long period of Northern Hemispheric cooling in the 6 th century CE, which disrupted human societies across large parts of the globe, has been attributed to volcanic forcing of climate. A major tropical eruption in 540 CE is thought to have played a key role, but there is no consensus about the source volcano to date. Here, we present evidence for El Chichón in southern Mexico as the most likely candidate, based on a refined reconstruction of the volcano-s eruption history. A new chronological framework, derived from distal tephra deposits and the world-s largest Holocene beach ridge plain along the Gulf of Mexico, enabled us to positively link a major explosive event to a prominent volcanic sulfur spike in bipolar ice core records, dated at 540 CE. We speculate that voluminous tephra fall from the eruption had a severe environmental impact on Maya societies, leading to temporary cultural decline, site abandonment, and migration within the core area of Maya civilization.

Keywords : Mexico El Chichon volcano Maya societies





Autor: Kees Nooren - Wim Hoek - Hans Van Der Plicht - Michael Sigl - Manfred Van Bergen - Didier Galop - Nuria Torrescano-Valle - Gerald

Fuente: https://hal.archives-ouvertes.fr/



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