摘要: Seafloor bathymetry and reflection seismic data from continental slopes rises of the Atlantic, Pacific, Indian, Black Sea reveal major slide scars slumps overlying gas hydrate deposits. Slides shape morphology world ocean margins represent a mechanism for transferring enormous amounts sediment material over relatively short time, between hours years, into deep sea. The trigger mechanisms slides are often unknown lead to speculations about various mechanisms. Massive rapid releases gases water methane decompositions can be one triggers leading slope instability along continental-margins. Submarine potential areas significant entering atmosphere. Our present observations hypotheses continental-margin hydrates insufficient quantify any these processes on regional or global scale. Developments in thermodynamic modeling temperature coupled with analysis pore-pressure generation dissipation signs allow assessments today's situation. New theories combined hydrate, slides, climate may come less-obvious field, ice core records.
sci-hub.se 参考文章(14)
Gerald R. Dickens, The potential volume of oceanic methane hydrates with variable external conditions Organic Geochemistry. ,vol. 32, pp. 1179- 1193 ,(2001) , 10.1016/S0146-6380(01)00086-9
George Carpenter, Coincident sediment slump/clathrate complexes on the U.S. Atlantic continental slope Geo-Marine Letters. ,vol. 1, pp. 29- 32 ,(1981) , 10.1007/BF02463298
Charles K. Paull, William J. Buelow, William Ussler, Walter S. Borowski, Increased continental-margin slumping frequency during sea-level lowstands above gas hydrate–bearing sediments Geology. ,vol. 24, pp. 143- 146 ,(1996) , 10.1130/0091-7613(1996)024<0143:ICMSFD>2.3.CO;2
Wenyue Xu, Carolyn Ruppel, Predicting the occurrence, distribution, and evolution of methane gas hydrate in porous marine sediments Journal of Geophysical Research: Solid Earth. ,vol. 104, pp. 5081- 5095 ,(1999) , 10.1029/1998JB900092
Mark Maslin, Matthew Owen, Simon Day, David Long, Linking continental-slope failures and climate change: Testing the clathrate gun hypothesis Geology. ,vol. 32, pp. 53- 56 ,(2004) , 10.1130/G20114.1
Miriam E. Katz, Benjamin S. Cramer, Gregory S. Mountain, Samuel Katz, Kenneth G. Miller, Uncorking the bottle: What triggered the Paleocene/Eocene thermal maximum methane release? Paleoceanography. ,vol. 16, pp. 549- 562 ,(2001) , 10.1029/2000PA000615
Jürgen Mienert, Maarten Vanneste, Stefan Bünz, Karin Andreassen, Haflidi Haflidason, Hans Petter Sejrup, Ocean warming and gas hydrate stability on the mid-Norwegian margin at the Storegga Slide Marine and Petroleum Geology. ,vol. 22, pp. 233- 244 ,(2005) , 10.1016/J.MARPETGEO.2004.10.018
Robert E. Kayen, Homa J. Lee, Pleistocene slope instability of gas hydrate‐laden sediment on the Beaufort sea margin Marine Georesources & Geotechnology. ,vol. 10, pp. 125- 141 ,(1991) , 10.1080/10641199109379886
John A. Higgins, Daniel P. Schrag, Beyond methane: Towards a theory for the Paleocene-Eocene Thermal Maximum Earth and Planetary Science Letters. ,vol. 245, pp. 523- 537 ,(2006) , 10.1016/J.EPSL.2006.03.009
T. Sowers, Late Quaternary atmospheric CH4 isotope record suggests marine clathrates are stable. Science. ,vol. 311, pp. 838- 840 ,(2006) , 10.1126/SCIENCE.1121235