BJ
FuturaSi une #superéruption volcanique se produisait, ce ne serait pas l’apocalypse mais le chaos pendant plusieurs décennies ! http://sci3nc.es/TJJ656
Si une super-éruption volcanique se produisait, ce ne serait pas l’apocalypse mais le chaos pendant plusieurs décennies !
Dans son histoire, la Terre a connu des éruptions volcaniques massives. Des super-éruptions. Et elles ont eu un effet sur le climat de notre Planète tout entière. Un effet majeur. Mais finalement peut-être pas aussi dramatique que le pensaient jusqu’ici les chercheurs.
volcanoboywere cooked if this does a vei7+ #yellowstone #yellowstonecaldera #VOLCANO #supervolcano #wyoming #volconology #geology #vei8 #vei7 #vei9 #supererupt #supereruption
AfricaUnion#Volcanic #Supereruption May Have Aided #Human #Exodus From Africa
#Researchers working in the #Horn of Africa have #uncovered evidence showing how #Middle #Stone Age humans #survived in the wake of the #eruption of #Toba, one of the largest #supervolcanoes in #history some 74,000 years ago. The behavioral flexibility of these Middle Stone Age people not only helped them live through the supereruption but may have facilitated the later dispersal of modern humans out of Africa and across the rest of the world.
English https://www.miragenews.com/volcanic-supereruption-may-have-aided-human-1199293/
Bill MinarikThe Bandelier Tuff (New Mexico) ejected perhaps 800 cubic km of magma and rock in two events a little over 1 million years ago.
Trace elements in #quartz make it glow in an electron beam (cathode luminescence). The outer bright blue rims in CL record crystallization temperatures (from Ti concentrations) abruptly 100°C hotter than before: magma recharge triggering a #supereruption.
Jack Wilcock's M.Sc. work (John Stix's group).
#MinCup23 #Caldera #Volcano #NewMexico #LAICPMS #CL
