CGRG Bibliography of Canadian Geomorphology
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Author : Evans, D.J.A.
Date : 1984
Title : Glacial geomorphology and chronology in the Selamiut Range/Nachvak Fiord area, Torngat Mountains, Labrador
Publication : Unpublished M.Sc. thesis, Memorial University, St.John's
Issue :
Page(s) : 138 p
Abstract
Physiographically the Selamiut Range is a plateau, dominated by deep cirques and cirque outlet valleys with precipitous bounding rock walls. Colluvial processes are extremely active and consequently many surficial units have been extensively remodelled in dynamic landscape systems. The adoption of a 1.5 cm ka(-1) soil development rate dates the three glaciations or stillstands for the Selamiut/Nachvak area; the Ivitak Glaciation at $>>$40 ka; the Nachvak Glaciation at c.23 ka; and the Superguksoak I Glaciation at 10-12 ka. B.P. Two further Neoglacial events were restricted to the cirque basins and are correlated locally by a combination of pedology, lichenometry and morphologic superimposition. A number of chronocorrelative inferences are made for northern Labrador based upon the existing empirical data. Glacial styles appear to differ quite considerably from fiord to fiord along the coastal section of the Torngat Mountains. The solution of discrepancies within the general northern Labrador chronology resides in the successful construction of an absolute dating framework for the marine limits of the region. Relative chronologies may then attain a significant applicability.
Bibliography of Canadian Geomorphology