About: Inferred gas hydrate and permafrost stability history models linked to climate change in the Beaufort-Mackenzie Basin, Arctic Canada     Goto   Sponge   NotDistinct   Permalink

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  • Atmospheric methane from episodic gas hydrate (GH) destabilization, the %22clathrate gun%22 hypothesis, is proposed to affect past climates, possibly since the Phanerozoic began or earlier. In the terrestrial Beaufort-Mackenzie Basin (BMB), GHs occur commonly below thick ice-bearing permafrost (IBP), but they are rare within it. Two end-member GH models, where gas is either trapped conventionally (Case 1) or where it is trapped dynamically by GH formation (Case 2), were simulated using profile (1-D) models and a 14 Myr ground surface temperature (GST) history based on marine isotopic data, adjusted to the study setting, constrained by deep heat flow, sedimentary succession conductivity, and observed IBP and Type I GH contacts in Mallik wells. Models consider latent heat effects throughout the IBP and GH intervals.
  • Atmospheric methane from episodic gas hydrate (GH) destabilization, the %22clathrate gun%22 hypothesis, is proposed to affect past climates, possibly since the Phanerozoic began or earlier. In the terrestrial Beaufort-Mackenzie Basin (BMB), GHs occur commonly below thick ice-bearing permafrost (IBP), but they are rare within it. Two end-member GH models, where gas is either trapped conventionally (Case 1) or where it is trapped dynamically by GH formation (Case 2), were simulated using profile (1-D) models and a 14 Myr ground surface temperature (GST) history based on marine isotopic data, adjusted to the study setting, constrained by deep heat flow, sedimentary succession conductivity, and observed IBP and Type I GH contacts in Mallik wells. Models consider latent heat effects throughout the IBP and GH intervals. (en)
Title
  • Inferred gas hydrate and permafrost stability history models linked to climate change in the Beaufort-Mackenzie Basin, Arctic Canada
  • Inferred gas hydrate and permafrost stability history models linked to climate change in the Beaufort-Mackenzie Basin, Arctic Canada (en)
skos:prefLabel
  • Inferred gas hydrate and permafrost stability history models linked to climate change in the Beaufort-Mackenzie Basin, Arctic Canada
  • Inferred gas hydrate and permafrost stability history models linked to climate change in the Beaufort-Mackenzie Basin, Arctic Canada (en)
skos:notation
  • RIV/67985530:_____/12:00377803!RIV13-AV0-67985530
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, Z(AV0Z30120515)
http://linked.open...iv/cisloPeriodika
  • 2
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 141291
http://linked.open...ai/riv/idVysledku
  • RIV/67985530:_____/12:00377803
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • climate change; Beaufort-Mackenzie Basin; permafrost (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV
  • [1BF998942CB9]
http://linked.open...i/riv/nazevZdroje
  • Climate of the Past
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 8
http://linked.open...iv/tvurceVysledku
  • Šafanda, Jan
  • Majorowicz, J.
  • Osadetz, K.
http://linked.open...ain/vavai/riv/wos
  • 000304059700019
http://linked.open...n/vavai/riv/zamer
issn
  • 1814-9324
number of pages
http://bibframe.org/vocab/doi
  • 10.5194/cp-8-667-2012
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