About: Gas hydrate contribution to Late Permian global warming

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Rapid gas hydrate release (the %22clathrate gun%22 hypothesis) has been invoked as a cause for the rapid global warming and associated negative carbon isotope excursion observed during the Latest Permian Extinction (LPE). We modeled the stability of gas hydrates through a warming Middle to Late Permian world, considering three settings for methane reservoirs: 1) terrestrial hydrates, 2) hydrates on exposed continental shelves during glacial sea level drop, and 3) hydrates in deep marine settings. Model results show that terrestrial hydrates would rapidly destabilize over similar to 400 ky after deglaciation for moderate heatflow (40 mW/m(2)), and more rapidly for higher heat flow values. Exposed continental shelves would lose hydrates even more rapidly, after being flooded due to loss of ice storage on land. These two major hydrate reservoirs would thus have destabilized during the Middle to Late Permian climate warming, well prior to the LPE event. Rapid gas hydrate release (the %22clathrate gun%22 hypothesis) has been invoked as a cause for the rapid global warming and associated negative carbon isotope excursion observed during the Latest Permian Extinction (LPE). We modeled the stability of gas hydrates through a warming Middle to Late Permian world, considering three settings for methane reservoirs: 1) terrestrial hydrates, 2) hydrates on exposed continental shelves during glacial sea level drop, and 3) hydrates in deep marine settings. Model results show that terrestrial hydrates would rapidly destabilize over similar to 400 ky after deglaciation for moderate heatflow (40 mW/m(2)), and more rapidly for higher heat flow values. Exposed continental shelves would lose hydrates even more rapidly, after being flooded due to loss of ice storage on land. These two major hydrate reservoirs would thus have destabilized during the Middle to Late Permian climate warming, well prior to the LPE event. (en)
Title	Gas hydrate contribution to Late Permian global warming Gas hydrate contribution to Late Permian global warming (en)
skos:prefLabel	Gas hydrate contribution to Late Permian global warming Gas hydrate contribution to Late Permian global warming (en)
skos:notation	RIV/67985530:_____/14:00433126!RIV15-AV0-67985530
http://linked.open...avai/riv/aktivita	I
http://linked.open...avai/riv/aktivity	I
http://linked.open...iv/cisloPeriodika	May
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Šafanda, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Geofyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	17927
http://linked.open...ai/riv/idVysledku	RIV/67985530:_____/14:00433126
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Latest Permian extinction; gas hydrates; carbon isotope shift (en)
http://linked.open.../riv/klicoveSlovo	Latest Permian extinction carbon isotope shift gas hydrates
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[50F1D35F9BF6]
http://linked.open...i/riv/nazevZdroje	Earth and Planetary Science Letters
http://linked.open...in/vavai/riv/obor	DC
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	393
http://linked.open...iv/tvurceVysledku	Šafanda, Jan Majorowicz, J. Beauchamp, B. Grasby, S. E.
http://linked.open...ain/vavai/riv/wos	000335103800026
issn	0012-821X
number of pages	11 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.epsl.2014.03.003

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