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(Article of periodic en Anglais - 2010)

Document title

Relationship between ground ice and solifluction : field measurements in the Daisetsu Mountains, Northern Japan

Authors(s) and Affiliation(s)

MATSUMOTO H. (1) ; YAMADA S. (2) ; HIRAKAWA K. (3) ;
(1) Prefectural Kukizaki High School, Ibaraki, JAPON
(2) Dep. of Geography, Osaka Kyoiku Univ., Kashiwara, JAPON
(3) Graduate School of Environmental Earth Science, Hokkaido Univ., Sapporo, JAPON

Abstract

Soil temperature, surface heave and downslope movements were monitored continuously for one year (1998-99) within a solifluction lobe developed on seasonally frozen ground in the Daisetsu Mountains, northern Japan. Observations were also made of soil moisture and ice segregation. Seasonal freeze-thaw cycles produced both frost creep and gelifluction. In layers shallower than 60 cm, ice segregation during the freezing season induced seasonal frost heave, and ice melt at the same depths during the thaw season promoted gelifluction as well as seasonal frost creep. At greater depths, gelifluction did not occur even when the thaw plane reached the ice-rich layers. The results at the study site demonstrate that segregated ice plays an important role in gelifluction, but only at shallower depths

Source

Article of periodic

published at : Permafrost and periglacial processes / ISSN 1045-6740 / CODEN PEPPED

Editor : Wiley, Chichester - ROYAUME-UNI (1990)

Millesime : 2010, vol. 21, no1 [pp. 78-89]

Bibliographic references : 1 p.

Collation : 10 fig., 2 tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/ppp.675

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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