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(Article of periodic en Anglais - 2005)

Document title

The sedimentary record of drifting ice (early Wisconsin Sunnybrook deposit) in an ancestral ice-dammed Lake Ontario, Canada

Authors(s) and Affiliation(s)

EYLES N. ; EYLES C.H. ; WOODWORTH-LYNAS C. ; RANDALL T.A. ;

Abstract

Outcrops of pebbly mud (diamict) at Scaborough in Southern Ontario (the so-called Sunnybrook Till) are associated with the earliest incursion of the Laurentide Ice Sheet (LIS) into mid-continent North America some 45,000 years ago. The Sunnybrook is a blanket-like deposit containing deepwater ostracodes and occurs conformably within a thick (100 m) succession of deltaic and glaciolacustrine facies that record water depth changes in a large proglacial lake. The data indicate an ancestral early-mid Wisconsin Laurentide Ice Sheet that was much smaller than its late Wisconsin counterpart

Source

Article of periodic

published at : Quaternary research / ISSN 0033-5894 / CODEN QRESAV

Editor : Elsevier, San Diego, CA - ETATS-UNIS (1970)

Millesime : 2005, vol. 63, no2 [pp. 171-181]

Bibliographic references : 60 ref.

Collation : Illustration ;

Language

Anglais

INIST-CNRS, Cote INIST : 15739

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2005.
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