scholarly journals Quaternary Geology of Wollaston Peninsula, Victoria Island, Northwest Territories

1992 ◽  
Author(s):  
D R Sharpe
Keyword(s):  
Northwest Territories ◽  
Quaternary Geology ◽  
Victoria Island

scholarly journals Kuujjua River Arctic Char: Monitoring Stock Trends Using Catches from an Under-Ice Subsistence Fishery, Victoria Island, Northwest Territories, Canada, 1991 – 2009

ARCTIC ◽  
2013 ◽  
Vol 66 (3) ◽  
Author(s):  
Lois A. Harwood ◽  
Stephen J. Sandstrom ◽  
Michael H. Papst ◽  
Humfrey Melling
Keyword(s):  
Northwest Territories ◽  
Arctic Char ◽  
Victoria Island

scholarly journals Geology, Uqpilik, Victoria Island, Northwest Territories

2015 ◽  
Author(s):  
J H Bédard ◽  
R H Rainbird ◽  
L D Currie ◽  
E C Turner
Keyword(s):  
Northwest Territories ◽  
Victoria Island

Distribution of saline permafrost in the Northwest Territories, Canada

1993 ◽  
Vol 30 (3) ◽  
pp. 506-514 ◽  
Author(s):  
E.G. Hivon ◽  
D.C. Sego
Keyword(s):  
Key Words ◽  
Data Base ◽  
Northwest Territories ◽  
Pore Water ◽  
Coastal Communities ◽  
Quaternary Geology ◽  
Water Salinity ◽  
Mackenzie Delta ◽  
Pore Water Salinity ◽  
Detrimental Impact

Saline permafrost has a detrimental impact on the performance of foundations. Increased pore-water salinity decreases the strength and increases the deformation susceptibility of permafrost and foundations installed in permafrost. A data base of the distribution of saline permafrost in the Northwest Territories shows high pore-water salinities beneath coastal communities and at locations along the upper Mackenzie Valley and within the Mackenzie Delta. Salinity of inland sites is usually low. High salinities are usually associated with ice-poor materials and are linked with previous marine submergence associated with glacial events. Key words : permafrost, saline distribution, measurements, Quaternary geology.

Late Glacial landforms of Wollaston Peninsula, Victoria Island, Northwest Territories: product of ice-marginal retreat, surge, and mass stagnation

1988 ◽  
Vol 25 (2) ◽  
pp. 262-279 ◽  
Author(s):  
David R. Sharpe
Keyword(s):  
Northwest Territories ◽  
Large Scale ◽  
Regional Scale ◽  
Late Glacial ◽  
Ground Moraine ◽  
Ice Conditions ◽  
Late Wisconsinan ◽  
Victoria Island ◽  
Glacial Landforms ◽  
Subglacial Meltwater

An analysis of glacial landforms on a regional scale leads to an interpretation of the dynamics of Late Wisconsinan glaciation on Wollaston Peninsula, Victoria Island, Northwest Territories. The glacial record is dominated by four adjacent belts of landforms: (I) ground moraine (till plains and ice-marginal drainage features), (II) hummocky moraine, (III) lateral and shear moraine, and (IV) streamlined landforms. The landform belts are considered as representing four distinct glacial ice conditions or regimes: (1) ice-margin retreat during extending flow of thin, active ice; (2) marginal ice stagnation following compressional flow; (3) a surging ice margin producing massive shear moraines; and (4) large-scale flooding and mass ice stagnation following a surge. These landform belts were arranged in zones by topographically controlled glacial dynamics, the latter two defining a former ice stream.Glaciological inferences can be extended by examining the sediments and processes that produced each landform set. Ground-moraine sediments were produced mainly subglacially from melt out or lodgment of glacial debris. Hummocky moraine resulted from debris flow and meltwater deposition controlled by ice, from resedimentation by sediment gravity flow, and from slump. Compressional shearing stacked thick deposits of drift prior to resedimentation. Simple lateral or end moraines may comprise interbedded sediment gravity flows deposited at static ice margins. Deformed lateral moraines resulted from intense marginal compressive flow that sheared and stacked thick, coarse sediment ridges or plates. This lateral shearing may be attributed to streaming or large ice surges. Drumlin exposures showed undeformed, interbedded, stratified sediments that appear to have accumulated in a subglacial cavity; there is no deformation related to high subglacial stress. Subglacial meltwater floods may have followed glacier surge. The greatly extended and thinner ice mass produced by the surge melted in place as clean (debris-free) ice.

scholarly journals The Duke of York and related Neoproterozoic inliers of southern Victoria Island, Distict of Franklin, Northwest Territories

1996 ◽  
Author(s):  
R H Rainbird ◽  
A N LeCheminant ◽  
J I Lawyer
Keyword(s):  
Northwest Territories ◽  
Victoria Island
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