CGRG Bibliography of Canadian Geomorphology
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Author : Fraser, T.A.
Date : 1995
Title : On the nature and origin of muck deposits, Klondike District, Yukon Territory
Publication : Unpublished M.A. thesis. Carleton University, Ottawa
Issue :
Page(s) : 224 p.
Abstract
The nature, origin, and geocryological characteristics of muck deposits have been studied in the Klondike District, Yukon Territory. Klondike mucks comprise two units: Pleistocene silt overlain by Holocene peat. Both units are perennially frozen and contain bodies of massive ice, namely segregated and intrusive ice and ice wedges. The Silt unit comprises primary and redeposited McConnell-aged loess, which began accumulating between 26,240 and 24,025 14C years BP, and declined during later stages of the McConnell glaciation. The Organic unit comprises in situ and colluvial material which began to accumulate as early as 9,945 14C years BP. Permafrost graded through the mucks syngenetically. Massive icy bodies in the Silt unit are mostly late-McConnell phenomena, while those in the Organic unit are smaller, Holocene features. The study sheds new light on eolian and slope processes occurring in eastern Beringia during the Late Wisconsinan glaciation.
Bibliography of Canadian Geomorphology