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Date Permissions Signed


Date of Award

Winter 2001

Document Type

Masters Thesis

Degree Name

Master of Science (MS)



First Advisor

Suczek, Christopher A., 1942-2014

Second Advisor

Clark, Douglas H., 1961-

Third Advisor

Housen, Bernard Arthur


The Sumas Stade, the last of the Fraser Glaciation advances, occurred between 12,000 and 10,000 14C years B.P. This study combines previous mapping (Easterbrook, 1976; Haugerud, written communication, 1999) with three new tests to establish a chronology for events of the Sumas Stade. Comparison of compositions of pebbles from Sumas outwash using multivariate statistics such as hierarchical clustering and k-means clustering revealed three major groups of late Sumas outwash and one earlier deposit. Magnetic susceptibility and Curie temperature analysis determined a general British Columbia provenance for the Sumas outwash. Flow direction measurements substantiated this determination. Taken together, these tests support the Sumas phases proposed by Haugerud and establish Curie temperature analysis as a means to help determine provenance of glacial sediment.




Sumas Stade, Sumas outwash, Magnetic susceptibility, Curie temperature analysis


Western Washington University

OCLC Number


Geographic Coverage

Sumas Region (Wash.); British Columbia


masters theses




Copying of this thesis in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this thesis for commercial purposes, or for financial gain, shall not be allowed without the author's written permission.

Laub (942 kB)
Appendix D: Curie temperature data

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