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Record #164653:

Significant marine-ice accumulation in the ablation zone beneath an Antarctic ice shelf / A. Khazendar, J.-L. Tison, B. Stenni, M. Dini, A. Bondesan.

Title: Significant marine-ice accumulation in the ablation zone beneath an Antarctic ice shelf / A. Khazendar, J.-L. Tison, B. Stenni, M. Dini, A. Bondesan.
Author(s): Khazendar, A.
Tison, J. -L.
Stenni, B.
Dini, M.
Bondesan, A.
Date: 2001.
In: Journal of Glaciology. (2001.), Vol. 47(158) (2001)
Abstract: Describes site on Nansen Ice Shelf from which a 45 m core was drilled in 1995-96 and presents results of high-resolution multiparametric measurements showing that properties of entire core correspond to those of marine ice. Stresses the significance of retrieving such a core from so close to grounding line. Excludes possibility of formation by deep thermohaline circulation. Proposes instead mechanism of accretion of marine ice in basal crevasses opening where meteoric ice goes afloat. Envisages local ice pump, in which buoyant Ice Shelf Water enters and ascends crevasse to become supercooled and form frazil ice. Ice formed by direct freezing, which might be expected in upper parts of basal crevasses or rifts is not observed in the core.
Notes:

Journal of Glaciology. Vol. 47(158) :359-368 (2001).

Keywords: 551.324 -- Land ice.
551.326 -- Floating ice.
551.321.2 -- Snow and ice, methods of sampling, excavating, drilling, etc.
622.14 -- Core sampling, ice and snow.
551.465.45 -- Water masses.
551.324.28 -- Ice shelves.
E5 -- Glaciology: land ice.
(*7) -- Antarctic regions.
(*762) -- Victoria Land.
SPRI record no.: 164653

MARCXML

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245 00 ‡aSignificant marine-ice accumulation in the ablation zone beneath an Antarctic ice shelf /‡cA. Khazendar, J.-L. Tison, B. Stenni, M. Dini, A. Bondesan.
260 ## ‡a[S.l.] :‡b[s.n.],‡c2001.
300 ## ‡ap. 359-368 :‡bill., diags., map.
500 ## ‡aJournal of Glaciology. Vol. 47(158) :359-368 (2001).
520 3# ‡aDescribes site on Nansen Ice Shelf from which a 45 m core was drilled in 1995-96 and presents results of high-resolution multiparametric measurements showing that properties of entire core correspond to those of marine ice. Stresses the significance of retrieving such a core from so close to grounding line. Excludes possibility of formation by deep thermohaline circulation. Proposes instead mechanism of accretion of marine ice in basal crevasses opening where meteoric ice goes afloat. Envisages local ice pump, in which buoyant Ice Shelf Water enters and ascends crevasse to become supercooled and form frazil ice. Ice formed by direct freezing, which might be expected in upper parts of basal crevasses or rifts is not observed in the core.
650 07 ‡a551.324 -- Land ice.‡2udc
650 07 ‡a551.326 -- Floating ice.‡2udc
650 07 ‡a551.321.2 -- Snow and ice, methods of sampling, excavating, drilling, etc.‡2udc
650 07 ‡a622.14 -- Core sampling, ice and snow.‡2udc
650 07 ‡a551.465.45 -- Water masses.‡2udc
650 07 ‡a551.324.28 -- Ice shelves.‡2udc
650 07 ‡aE5 -- Glaciology: land ice.‡2local
651 #7 ‡a(*7) -- Antarctic regions.‡2udc
651 #7 ‡a(*762) -- Victoria Land.‡2udc
700 1# ‡aKhazendar, A.
700 1# ‡aTison, J. -L.
700 1# ‡aStenni, B.
700 1# ‡aDini, M.
700 1# ‡aBondesan, A.
773 0# ‡7nnas ‡tJournal of Glaciology. ‡gVol. 47(158) (2001) ‡wSPRI-20534
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20221004