Surficial Geology and Pleistocene Stratigraphy from Deep Bay to Nanoose Harbour, Vancouver Island, British Columbia
Surficial Geology and Pleistocene Stratigraphy from Deep Bay to Nanoose Harbour, Vancouver Island, British Columbia

Author: J. M. Bednarski

Publisher:

Published: 2015

Total Pages:

ISBN-13:

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A detailed study of the surficial geology of the east coast of Vancouver Island from Deep Bay to Nanoose Harbour, British Columbia was undertaken as part of the Nanaimo Lowland Ground Water Assessment Project. This paper describes the results of the study and introduces a surficial geology map incorporating the Pleistocene stratigraphy derived from new seismic reflection surveys, boreholes and existing water well data. The unconsolidated sediment cover is greater than 100 m thick in places with most deposits derived from two previous glaciations that are separated by non-glacial fluvial and marine sediments. Major sedimentation also occurred in the valleys immediately after the last glaciation, a time of rapidly falling sea level and abundant meltwater. Modern alluvium is confined to the lower reaches of the larger rivers.

Pleistocene Stratigraphy and Till Geochemistry of the Miramichi Zone, New Brunswick
Pleistocene Stratigraphy and Till Geochemistry of the Miramichi Zone, New Brunswick

Author: Michel Lamothe

Publisher:

Published: 1992

Total Pages: 72

ISBN-13:

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Mineral exploration in large parts of Canada is difficult because the bedrock is hidden beneath thick layers of glacially derived sediments. One technique to overcome this, called drift prospecting, identifies high concentrations of economically significant minerals or elements in the glacial sediments and helps to identify their bedrock sources. This project was designed to interpret Quaternary geology to assist in mineral development. This report shows how the geochemistry and lithology of the glacial sediments vary across the region and how the stratigraphy and provenance of those sediments can be interpreted so that geochemical anomalies or mineralized boulders may be traced back to their bedrock sources.