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Record #173410:

Deformation of ice at low stresses; application to the behaviour of the Vostok ice core / P. Duval, M. Montagnat.

Title: Deformation of ice at low stresses; application to the behaviour of the Vostok ice core / P. Duval, M. Montagnat.
Author(s): Duval, P.
Montagnat, M.
Date: 2004.
Language: Russian transliteration entered into original records using BGN/PCGN 1947 romanisation of Russian; Cyrillic text in MARC 880 field(s) reverse transliterated from this by automated process; BGN/PCGN 1947 text then upgraded to Library of Congress romanisation.
In: Materialy Gli︠a︡t︠s︡iologicheskikh Issledovaniĭ. (2004.), Vol. 97 (2004)
Abstract: Examines changing rheological properties of ice as it deforms in polar ice sheets. Discusses deformation modes of polycrystalline ice in low stress conditions. Uses evidence from Antarctic and Greenland ice cores and observations of glacier flow, to show intracrystalline dislocation glide compatible with in situ deformation measurements and fabric development. Considers how impurities and crystal size influence strain rate. Discusses origin of strain inhomogeneities within grains, and grain boundary migration and dynamic recrystallisation as efficient recovery processes. Attributes low stress exponent to recrystallization's role in accommodating basal slip. Attributes enhancement factor in LGM ice to effects of fabric and crystal size. Solid impurities impede grain growth, but do not directly affect ice viscosity.
Notes:

Materialy Gli︠a︡t︠s︡iologicheskikh Issledovaniĭ. Vol. 97 :85-88 (2004).

Keywords: 551.32 -- Glaciology.
551.324 -- Land ice.
551.324.24 -- Ice sheets and caps.
551.322 -- Ice and snow.
53 -- Physics.
539.3 -- Ice, mechanical properties.
539.37 -- Ice, plastic and viscous deformation.
548.2 -- Ice, granular structure. Anisotropy.
548.53 -- Ice, recrystallization and grain growth.
551.324.84 -- Land ice, impurities.
551.324.51 -- Land ice, theory of flow.
519.673 -- Modelling.
E4 -- Glaciology: physics and chemistry of ice.
(*7) -- Antarctic regions.
(*747.5) -- Vostok region.
(*38) -- Greenland.
SPRI record no.: 173410

MARCXML

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001 SPRI-173410
005 20220926014251.0
007 ta
008 220926s2004####xx#a##|##|###|0||#0|eng#d
035 ## ‡aSPRI-173410
040 ## ‡aUkCU-P‡beng‡eaacr
100 1# ‡aDuval, P.
245 10 ‡aDeformation of ice at low stresses; application to the behaviour of the Vostok ice core /‡cP. Duval, M. Montagnat.
260 ## ‡a[S.l.] :‡b[s.n.],‡c2004.
300 ## ‡ap. 85-88 :‡bdiag., table.
500 ## ‡aMaterialy Gli︠a︡t︠s︡iologicheskikh Issledovaniĭ. Vol. 97 :85-88 (2004).
520 3# ‡aExamines changing rheological properties of ice as it deforms in polar ice sheets. Discusses deformation modes of polycrystalline ice in low stress conditions. Uses evidence from Antarctic and Greenland ice cores and observations of glacier flow, to show intracrystalline dislocation glide compatible with in situ deformation measurements and fabric development. Considers how impurities and crystal size influence strain rate. Discusses origin of strain inhomogeneities within grains, and grain boundary migration and dynamic recrystallisation as efficient recovery processes. Attributes low stress exponent to recrystallization's role in accommodating basal slip. Attributes enhancement factor in LGM ice to effects of fabric and crystal size. Solid impurities impede grain growth, but do not directly affect ice viscosity.
546 ## ‡aRussian transliteration entered into original records using BGN/PCGN 1947 romanisation of Russian; Cyrillic text in MARC 880 field(s) reverse transliterated from this by automated process; BGN/PCGN 1947 text then upgraded to Library of Congress romanisation.
650 07 ‡a551.32 -- Glaciology.‡2udc
650 07 ‡a551.324 -- Land ice.‡2udc
650 07 ‡a551.324.24 -- Ice sheets and caps.‡2udc
650 07 ‡a551.322 -- Ice and snow.‡2udc
650 07 ‡a53 -- Physics.‡2udc
650 07 ‡a539.3 -- Ice, mechanical properties.‡2udc
650 07 ‡a539.37 -- Ice, plastic and viscous deformation.‡2udc
650 07 ‡a548.2 -- Ice, granular structure. Anisotropy.‡2udc
650 07 ‡a548.53 -- Ice, recrystallization and grain growth.‡2udc
650 07 ‡a551.324.84 -- Land ice, impurities.‡2udc
650 07 ‡a551.324.51 -- Land ice, theory of flow.‡2udc
650 07 ‡a519.673 -- Modelling.‡2udc
650 07 ‡aE4 -- Glaciology: physics and chemistry of ice.‡2local
651 #7 ‡a(*7) -- Antarctic regions.‡2udc
651 #7 ‡a(*747.5) -- Vostok region.‡2udc
651 #7 ‡a(*38) -- Greenland.‡2udc
700 1# ‡aMontagnat, M.
773 0# ‡6880-01‡7nnas ‡tMaterialy Gli︠a︡t︠s︡iologicheskikh Issledovaniĭ. ‡gVol. 97 (2004) ‡wSPRI-33585
880 0# ‡6773-01/(N‡7nnas ‡tМатериалы Гляциологических Исследований. ‡gVol. 97 (2004) ‡wSPRI-33585
916 ## ‡a2005/10/18 -- RF
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20220926 ‡bRF