Geological Survey of Canada, Current Research (Online) no. 2005-B2 PDF Download
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Author: Isabelle McMartin
Publisher: Natural Resources Canada
ISBN: 0662399749
Category : Glacial epoch
Languages : en
Pages : 12
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Book Description
This paper presents results from a Quaternary mapping project conducted in two areas of central mainland Nunavut that were located beneath the Keewatin Ice Divide during the last glaciation. Field work included surficial mapping, regional-scale till sampling, stratigraphic studies, and ice-flow indicator surveys. The paper summarizes the findings related to ice flow directions, patterns, and the sequence of flow events in the two map areas. Preliminary interpretations are offered of the ice flow record from the oldest recognized ice-flow events to the most recent flows.
Author: Isabelle McMartin
Publisher: Natural Resources Canada
ISBN: 0662399749
Category : Glacial epoch
Languages : en
Pages : 12
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Book Description
This paper presents results from a Quaternary mapping project conducted in two areas of central mainland Nunavut that were located beneath the Keewatin Ice Divide during the last glaciation. Field work included surficial mapping, regional-scale till sampling, stratigraphic studies, and ice-flow indicator surveys. The paper summarizes the findings related to ice flow directions, patterns, and the sequence of flow events in the two map areas. Preliminary interpretations are offered of the ice flow record from the oldest recognized ice-flow events to the most recent flows.
Author: R. McNeely
Publisher: Natural Resources Canada
ISBN: 0662422902
Category : Radiocarbon dating
Languages : en
Pages : 117
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Book Description
This publication presents & discusses 533 radiocarbon age determinations made by the Geological Survey of Canada Radiocarbon Dating Laboratory plus 169 dates done by other laboratories. The presentation of dates within each section or subsection of this text is ordered from east to west by province or territory. An index by laboratory sample number is included.
Author: K. Wetherell
Publisher: Natural Resources Canada
ISBN: 0662411226
Category : Geology
Languages : en
Pages : 12
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Book Description
The West Tuya lava field is located about 95 kilometres north-north-west of Dease Lake, British Columbia. This report presents an overview & summary of field work, geographic information system spatial analysis, and preliminary petrographic analysis conducted at the field in 2003-04. Highlights of this work include: identification of three sub-aerial shield volcanoes and their mineral composition; confirmation that mantle-derived peridotite inclusions are present at two of the volcanoes; and interpretation of the sub-aerial lava flows. The minimum and maximum volumes of material erupted are also estimated.
Author: Lynda A. Dredge
Publisher: Natural Resources Canada
ISBN: 0662403886
Category : Geology
Languages : en
Pages : 7
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Book Description
This report briefly describes the nature, extent, and age of marine deposits near the head of Wager Bay on the west side of Hudson Bay, Nunavut. The main focus is on determination of the marine limit, or the highest elevation reached by the post-glacial sea. The elevation of the marine limit yields information about the extent of inundation by post-glacial seas, the amount of post-glacial crustal deformation, and the elevation below which the geochemical composition of glacial deposits may have been altered by marine processes or by mixing of glacial materials with marine sediments. Marine limit positions were determined by recording the elevations of: raised deltas that indicate where meltwater streams & overflow channels from glacial lakes fed in to high-level water bodies; ice-contact deltas; and trimlines where the uppermost limit of wave erosion of glacial deposits is prominent.
Author: Denis Lavoie
Publisher: Natural Resources Canada
ISBN: 0662393333
Category : Dolomite
Languages : en
Pages : 12
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Book Description
This paper presents preliminary results from field observations on the Lower Silurian La Vieille Formation in north-east New Brunswick regarding the extent of early hydrothermal dolomitization, a critical element for assessing hydrocarbon potential. Six stratigraphic sections of the Formation were carefully examined for facies architecture and evidence of hydrothermal alteration of limestone facies. Features of interest included early fractures, brecciation & dissolution associated with early fractures, large-scale collapse of sections, fracture-filling cements, and synsedimentary tectonic instability. The findings provide critical information pertinent to the hydrocarbon reservoir potential of these rocks.
Author:
Publisher: Natural Resources Canada
ISBN: 066240226X
Category :
Languages : en
Pages : 15
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Author:
Publisher: Natural Resources Canada
ISBN: 1100117601
Category :
Languages : en
Pages : 21
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Author:
Publisher: Natural Resources Canada
ISBN: 0662419162
Category :
Languages : en
Pages : 12
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Author:
Publisher: Natural Resources Canada
ISBN:
Category :
Languages : en
Pages : 13
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Author:
Publisher: Natural Resources Canada
ISBN: 0662485556
Category :
Languages : en
Pages : 18
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