Thermal regime, isotopic and morphological characteristics of ice wedges in northern Victoria Land, Antarctica.

The preliminary results of the research carried out on six ice wedges located in the vicinity of Terra Nova Bay, in northern Victoria Land utilized co-isotope analyses to show that sublimation processes contribute to the formation of the ice-wedge ice. Analysis of the thermal regime of one ice wedge...

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Bibliographic Details
Main Authors: RAFFI, Rossana, B. STENNI, L. GENONI, O. FLORA, S. SEGA
Other Authors: A. Cooper, R. Carol, Raffi, Rossana, B., Stenni, L., Genoni, O., Flora, S., Sega
Format: Conference Object
Language:English
Published: U.S. GEOLOGICAL SURVEY AND THE NATIONAL ACADEMIES 2007
Subjects:
Ice wedge
polygon
thermal regime
petrofabric analysis
Terra Nova Bay
Victoria Land
Antarc*
Antarctica
Online Access:http://hdl.handle.net/11573/214705
http://pubs.usgs.gov/of/2007/1047/ea204,1-4
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Summary:The preliminary results of the research carried out on six ice wedges located in the vicinity of Terra Nova Bay, in northern Victoria Land utilized co-isotope analyses to show that sublimation processes contribute to the formation of the ice-wedge ice. Analysis of the thermal regime of one ice wedge over a period of one year shows that extreme gradients between the ground surface and the top of the ice wedge temperatures may trigger ice-wedge cracking.

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