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Record #111154:

Deforming-bed origin for southern Laurentide till sheets? / Richard B. Alley.

Title: Deforming-bed origin for southern Laurentide till sheets? / Richard B. Alley.
Author(s): Alley, Richard B.
Date: 1991.
In: Journal of Glaciology. (1991.), Vol. 37(125) (1991)
Abstract: Widespread, uniform till sheets of southern margin of ice sheet were deposited by fast-moving, wet-bedded ice over relatively short periods of time. Characteristics of till sheets are consistent with deposition from deforming, subglacial sediment layers; difficult to explain origin through debris transport in basal ice. Careful estimation of debris budgets and studies of sorted sediments contained in till sheets may clarify this.
Notes:

Journal of Glaciology. Vol. 37(125) :67-76 (1991).

Keywords: 551.33 -- Glacial geology.
551.336 -- Ice ages.
551.79 -- Quaternary.
551.332.212 -- Till or boulder clay.
E7 -- Glaciology: glacial geology and ice ages.
(*40) -- North American Arctic.
SPRI record no.: 111154

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500 ## ‡aJournal of Glaciology. Vol. 37(125) :67-76 (1991).
520 3# ‡aWidespread, uniform till sheets of southern margin of ice sheet were deposited by fast-moving, wet-bedded ice over relatively short periods of time. Characteristics of till sheets are consistent with deposition from deforming, subglacial sediment layers; difficult to explain origin through debris transport in basal ice. Careful estimation of debris budgets and studies of sorted sediments contained in till sheets may clarify this.
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650 07 ‡a551.336 -- Ice ages.‡2udc
650 07 ‡a551.79 -- Quaternary.‡2udc
650 07 ‡a551.332.212 -- Till or boulder clay.‡2udc
650 07 ‡aE7 -- Glaciology: glacial geology and ice ages.‡2local
651 #7 ‡a(*40) -- North American Arctic.‡2udc
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