Extensive local seabed disturbance, erosion and mass wasting on Alpha Ridge, central Arctic Ocean: Possible evidence for an extra-terrestrial impact?
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Extensive local seabed disturbance, erosion and mass wasting on Alpha Ridge, central Arctic Ocean : Possible evidence for an extra-terrestrial impact? / Kristoffersen, Yngve; Hall, John K.; Hunkins, Kenneth; Ardai, José; Coakley, Bernard J.; Hopper, John R.; Arthun, Tore; Berge, Hans; Bruvoll, Vibeke; Grindvall, Erik; Breien, Hedda; Dove, Dayon; Henkart, Paul; Ivanova, Nina; Ludvigsen, Fredrik; Monsen, Karina.
I: Norsk Geologisk Tidsskrift, Bind 88, Nr. 4, 2008, s. 313-320.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Extensive local seabed disturbance, erosion and mass wasting on Alpha Ridge, central Arctic Ocean
T2 - Possible evidence for an extra-terrestrial impact?
AU - Kristoffersen, Yngve
AU - Hall, John K.
AU - Hunkins, Kenneth
AU - Ardai, José
AU - Coakley, Bernard J.
AU - Hopper, John R.
AU - Arthun, Tore
AU - Berge, Hans
AU - Bruvoll, Vibeke
AU - Grindvall, Erik
AU - Breien, Hedda
AU - Dove, Dayon
AU - Henkart, Paul
AU - Ivanova, Nina
AU - Ludvigsen, Fredrik
AU - Monsen, Karina
PY - 2008
Y1 - 2008
N2 - Sub-bottom sediments within a 200 × 600 km area on the crest and south slope (water depth 1200-2500 meter) of the submarine Alpha Ridge in the central Arctic Ocean have been locally disrupted down to at least 500 meter below the seabed, suffered intensive local current erosion, and abundant mass wasting. There appears to be a westward progression along the ridge from an eastern area of chaotic and eroded sub-bottom sediments to proximal intense erosion of an undisturbed section and a more distal occurrence of mass wasting and minor erosion. As a working hypothesis, we propose that the spectrum and scale of drastic, spatially restricted and apparently geologically short-lived environmental changes are compatible with the effect of a shock wave from the impact of an extra-terrestrial body into the central Arctic Ocean.
AB - Sub-bottom sediments within a 200 × 600 km area on the crest and south slope (water depth 1200-2500 meter) of the submarine Alpha Ridge in the central Arctic Ocean have been locally disrupted down to at least 500 meter below the seabed, suffered intensive local current erosion, and abundant mass wasting. There appears to be a westward progression along the ridge from an eastern area of chaotic and eroded sub-bottom sediments to proximal intense erosion of an undisturbed section and a more distal occurrence of mass wasting and minor erosion. As a working hypothesis, we propose that the spectrum and scale of drastic, spatially restricted and apparently geologically short-lived environmental changes are compatible with the effect of a shock wave from the impact of an extra-terrestrial body into the central Arctic Ocean.
UR - http://www.scopus.com/inward/record.url?scp=66649117765&partnerID=8YFLogxK
M3 - Journal article
AN - SCOPUS:66649117765
VL - 88
SP - 313
EP - 320
JO - Norsk Geologisk Tiddsskrift
JF - Norsk Geologisk Tiddsskrift
SN - 0029-196X
IS - 4
ER -
ID: 355631101