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The AAPG/Datapages Combined Publications Database

CSPG Special Publications


Sequences, Stratigraphy, Sedimentology: Surface and Subsurface — Memoir 15, 1988
Pages 475-483

Sedimentology and Depositional Setting of the Granite Wash, Northwestern Alberta

Richard Trotter, Frances J. Hein


The conglomeratic Granite Wash unconformably overlies Precambrian igneous and metamorphic rocks of the Peace River Arch, northwestern Alberta. Thick accumulations of Granite Wash alluvial, fan-delta, and lower shoreface sediments flanked the uplifted basement rocks of the arch and infilled grabens on the arch.

Granite Wash alluvial sequences are divided into six facies, which are defined as follows: 1) clast-supported conglomerate; 2) matrix-supported conglomerate; 3) conglomeratic sandstone; 4) sandstone; 5) interbedded siltstone, mudstone, and sandstone; and 6) reddish brown mudstone.

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