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Thomas D. Demchuk
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Journal Article

The identification and significance of kaolinite-rich, volcanic ash horizons (tonsteins) in the Ardley coal zone, Wabamun, Alberta, Canada

Thomas D. Demchuk, D.A. Nelson-Glatiotis
Published: 01 December 1993
Bulletin of Canadian Petroleum Geology (1993) 41 (4): 464–469.
DOI: https://doi.org/10.35767/gscpgbull.41.4.464
View PDF for article title, The identification and significance of kaolinite-rich, volcanic ash horizons (tonsteins) in the Ardley coal zone, Wabamun, Alberta, Canada
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Journal Article

A re-examination of the Paskapoo Formation in the central Alberta Plains: the designation of three new members

Thomas D. Demchuk, L.V. Hills
Published: 01 September 1991
Bulletin of Canadian Petroleum Geology (1991) 39 (3): 270–282.
DOI: https://doi.org/10.35767/gscpgbull.39.3.270
View PDF for article title, A re-examination of the Paskapoo Formation in the central Alberta Plains: the designation of three new members
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