1979
DOI: 10.1017/s0022143000014763
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Late Wisconsin Reconstruction for the Ross Sea Region, Antarctica

Abstract: ABSTRACT. If sea-Ievel depression in the Ross Sea embayment we re : ( I ) < 120-13 0 m, or ( 2 ) > 120-13 0 m but susta ined for < 10' a, it is unlikely that the R oss I ce Shelf would h ave become fully grounded over the whole continental shelf during Wisconsin times. Sediments fl ooring th e Ross Sea and recent estima tes of sea-level lowering and p ost-gl acial emergence yield little suppo rt fo r grounded ice but do provide some evide nce for expanded ice-sh elf co nditions. A reconstruction is prese nted … Show more

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Cited by 57 publications
(24 citation statements)
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“…Ice derived from high elevations on the Polar Plateau but now stranded on the McMurdo Ice Shelf, and the pattern of the Transantarctic Mountains erratics support our reconstructions of Mulock Glacier ice rounding Minna Bluff but with all ice from Skelton Glacier ablating south of the bluff. They are inconsistent with Drewry’s (1979) LGM reconstruction that includes Skelton Glacier ice in the McMurdo-Sound through-flow. Drewry’s (1979) model closely approximates our results for 12000-4000 BP.…”
mentioning
confidence: 59%
See 1 more Smart Citation
“…Ice derived from high elevations on the Polar Plateau but now stranded on the McMurdo Ice Shelf, and the pattern of the Transantarctic Mountains erratics support our reconstructions of Mulock Glacier ice rounding Minna Bluff but with all ice from Skelton Glacier ablating south of the bluff. They are inconsistent with Drewry’s (1979) LGM reconstruction that includes Skelton Glacier ice in the McMurdo-Sound through-flow. Drewry’s (1979) model closely approximates our results for 12000-4000 BP.…”
mentioning
confidence: 59%
“…They are inconsistent with Drewry’s (1979) LGM reconstruction that includes Skelton Glacier ice in the McMurdo-Sound through-flow. Drewry’s (1979) model closely approximates our results for 12000-4000 BP. Ice-sheet modeling holds promise for determining whether deglaciation proceeded by grounding-line retreat of an ice sheet that was largely stagnant, because it never approached equilibrium flowline profiles after the Ross Ice Shelf grounded, or of a dynamic ice sheet with flowline profiles kept low by active ice streams that extended northward from present-day outlet glaciers after the Ross Ice Shelf grounded.…”
mentioning
confidence: 59%
“…As a result, estimates of the overall Antarctic contribution to eustatic sea-level drop at the LGM range from 0.5 to 29 m (Drewry 1979;Stuiver et al 1981;Denton et al 1989a;Huybrechts 1990;Colhoun et al 1992;Bentley 1999).…”
Section: The Problemmentioning
confidence: 99%
“…However, the extent of grounded ice in the Ross Sea Embayment has been under debate (Colhoun et al 1992). As a result, estimates of the overall Antarctic contribution to eustatic sea-level drop at the LGM range from 0.5 to 29 m (Drewry 1979;Stuiver et al 1981;Denton et al 1989a;Huybrechts 1990;Colhoun et al 1992;Bentley 1999).…”
Section: Introductionmentioning
confidence: 99%