Mud volcanoes and ice-keel ploughmarks, Beaufort Sea shelf, Arctic Canada
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Peer-reviewed
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Authors
Dowdeswell, JA
Todd, BJ
Abstract
The shallow shelf waters of the Beaufort Sea have experienced marine transgression during the Holocene (Hill et al. 1985; Taylor et al. 2013). This has led to a warming of what was terrestrial permafrost by water incursion, and to the dissociation of subsurface gas hydrates which now vent into marine waters. Accompanying this change is the development of conical submarine landforms produced through the extrusion of sediments, combined with the continuing reworking of the seafloor by the ploughing action of the keels of drifting ice (Fig. 1).
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Journal Title
Geological Society Memoir
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Journal ISSN
0435-4052
2041-4722
2041-4722
Volume Title
46
Publisher
Geological Society of London