Formation processes of basal ice at Hamna Glacier, Sôya Coast, East Antarctica, inferred by detailed co-isotopic analyses / Yoshinori Iizuka, Hiroshi Satake, Takayuki Shiraiwa, Renji Naruse.

MARCXML

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001 SPRI-164640
005 20240419074806.0
007 ta
008 240419s2001####xx#a##|##|###|0||#0|eng#d
035 ## ‡aSPRI-164640
040 ## ‡aUkCU-P‡beng‡eaacr
245 00 ‡aFormation processes of basal ice at Hamna Glacier, Sôya Coast, East Antarctica, inferred by detailed co-isotopic analyses /‡cYoshinori Iizuka, Hiroshi Satake, Takayuki Shiraiwa, Renji Naruse.
260 ## ‡a[S.l.] :‡b[s.n.],‡c2001.
300 ## ‡ap. 223-231 :‡bill., diags.
500 ## ‡aJournal of Glaciology. Vol. 47(157) :223-231 (2001).
520 3# ‡aPresents co-isotopic (δ¹⁸O and δD) study of basal ice layer sufficiently detailed to examine single refreezing events. Observes in basal ice a thick upper part of alternating layers of bubbly and bubble-free ice with low debris content and a thin lower part of largely bubble-free ice with high debris content. Both parts have pronounced multiple- maximum fabrics suggesting prolonged exposure to strong shear. Deduces bubble-free layers and some bubbly layers in upper part formed by refreezing of meltwater in an open system, probably through regelation at a bed bump. Layers were then folded, compressed and sheared so as to incorporate some layers of non-melted ice into the ice column. Lower part of basal ice probably formed through congelation, either in a water filled cavity or by a change in the basal thermal regime on a local scale.
650 07 ‡a551.32 -- Glaciology.‡2udc
650 07 ‡a551.324 -- Land ice.‡2udc
650 07 ‡a551.324.81 -- Glacier bands, lamination, layering and foliation.‡2udc
650 07 ‡a551.324.82 -- Bubbles in glaciers and ice.‡2udc
650 07 ‡a54.027 -- Isotope analysis.‡2udc
650 07 ‡aE4 -- Glaciology: physics and chemistry of ice.‡2local
651 #7 ‡a(*7) -- Antarctic regions.‡2udc
651 #7 ‡a(*73) -- Dronning Maud Land.‡2udc
700 1# ‡aIizuka, Yoshinori.
700 1# ‡aSatake, Hiroshi.
700 1# ‡aShiraiwa, Takayuki.
700 1# ‡aNaruse, Renji.
773 0# ‡7nnas ‡tJournal of Glaciology. ‡gVol. 47(157) (2001) ‡wSPRI-20534
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20240419