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.
Thermal regime, isotopic and morphological characteristics of ice wedges in northern Victoria Land, Antarctica / Raffi, Rossana; B., Stenni; L., Genoni; O., Flora; S., Sega. - ELETTRONICO. - USGS OFR 2007:(2007), pp. 1-4. (Intervento presentato al convegno 10TH INTERNATIONAL SYMPOSIUM ON ANTARCTIC EARTH SCIENCES - ISAES 2007 tenutosi a S. BARBARA - CALIFORNIA nel 26 - 31 AGOSTO 2007).
Thermal regime, isotopic and morphological characteristics of ice wedges in northern Victoria Land, Antarctica.
RAFFI, Rossana;
2007
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
