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Corrugation ridges in the Pine Island Bay glacier trough, West Antarctica
Ansvarlig organisasjon
2016 (engelsk)Inngår i: Geological Society Memoir, ISSN 0435-4052, E-ISSN 2041-4722, Vol. 46, nr 1, s. 265-266Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Glacial landforms with dimensions smaller than the imaging capability of the first-generation multibeam sonars will become a more frequent topic as high-resolution seafloor mapping technology advances. In Pine Island Bay (PIB) glacial trough, West Antarctica, small regular ridges of only a few metres from trough to crest were mapped in water depths of about 700 m. The small size of these ridges is at the limit of what modern deep-water multibeam sonars are capable of mapping. The ridges are interpreted to have been formed at the trailing edge of mega-icebergs moving up and down in response to tides while ploughing the seafloor (Jakobsson et al. 2011). The mega-icebergs in PIB were produced by ice shelf break-up and associated grounding-zone retreat.

sted, utgiver, år, opplag, sider
Geological Society of London , 2016. Vol. 46, nr 1, s. 265-266
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Forskningsprogram
SWEDARP 2009/10, Oden Southern Ocean 2009/10
Identifikatorer
URN: urn:nbn:se:polar:diva-8684DOI: 10.1144/M46.5OAI: oai:DiVA.org:polar-8684DiVA, id: diva2:1553094
Tilgjengelig fra: 2021-05-07 Laget: 2021-05-07 Sist oppdatert: 2021-05-07bibliografisk kontrollert

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