scholarly journals 2005 reconnaissance field program in Peel Plateau and Peel Plain region, Northwest Territories and Yukon Territory

2006 ◽  
Author(s):  
L J Pyle ◽  
A L Jones ◽  
L P Gal ◽  
J G Abbott ◽  
A D McCracken ◽  
...  
Keyword(s):  
Northwest Territories ◽  
Yukon Territory ◽  
Plain Region ◽  
Peel Plateau

The sequence and correlation of Early Ordovician (Arenig) graptolite faunas in the Richardson Trough and Misty Creek Embayment, Yukon Territory and District of Mackenzie, Canada

2006 ◽  
Vol 43 (12) ◽  
pp. 1791-1820 ◽  
Author(s):  
D E Jackson ◽  
A C Lenz
Keyword(s):  
Northwest Territories ◽  
Deep Water ◽  
Yukon Territory ◽  
Early Ordovician ◽  
The Road ◽  
Bedded Chert ◽  
First Occurrence ◽  
Mackenzie Mountains ◽  
First Time

Four graptolite biozones are recorded from the Arenig portion of the Road River Group in the Richardson and Mackenzie mountains in the Yukon and Northwest Territories. In ascending order, these zones are Tetragraptus approximatus, Pendeograptus fruticosus, Didymograptus bifidus, and Parisograptus caduceus australis (new). The Castlemainian stage may be represented by nongraptolitic massive bedded chert. The Arenig–Llanvirn boundary is drawn below the first occurrence of Undulograptus austrodentatus. Fifty-four graptolite taxa are present, and 16 of these species and subspecies are recorded for the first time in this deep-water biotope, namely, Didymograptus? cf. adamantinus, D. asperus, D. dilatans, D. cf. kurcki, D. validus communis, Holmograptus aff. leptograptoides, H. sp. A, Isograptus? sp. nov. A, I. ? dilemma, Keblograptus geminus, Pseudisograptus manubriatus harrisi, Ps. m. koi, Ps. m. janus, Ps. cf. tau, Xiphograptus lofuensis, and Zygograptus cf. abnormis.

Permafrost, tectonics, and past and future regional climate change, Yukon and adjacent Northwest Territories

1994 ◽  
Vol 31 (1) ◽  
pp. 182-191 ◽  
Author(s):  
C. R. Burn
Keyword(s):  
Northwest Territories ◽  
General Circulation ◽  
Regional Climate ◽  
Gulf Of Alaska ◽  
General Circulation Models ◽  
Yukon Territory ◽  
Early Pleistocene ◽  
Tectonic Activity ◽  
Near Surface ◽  
Late Tertiary

Late Tertiary changes in the general circulation of the atmosphere, regionally enhanced by uplift of the Wrangell – Saint: Elias and Coast mountains, were sufficient to promote permafrost development in the western Arctic. Permafrost developed in Yukon Territory and adjacent Northwest Territories during early Pleistocene glacial periods, after continued tectonic activity led to further modification of regional climate, but degraded in the interglacials. Permafrost has been present in northern parts of the region since the Illinoian glaciation, but most ground ice in central Yukon formed in the Late Wisconsinan. The present interglacial is the only one with widespread evidence of permafrost, which is maintained in the valleys of central and southern Yukon by the Saint Elias Mountains blocking continental penetration of maritime air from the Gulf of Alaska. This reduces snow depth in winter, while cold-air drainage in the dissected terrain of the Yukon Plateaus enhances the near-surface inversion, leading to continental minimum temperatures. General circulation models used to simulate climate represent the physiography of northwest Canada crudely. As a result, the simulations are unable to reproduce conditions responsible for the development and preservation of permafrost in the region.

Field-based stratigraphic studies in the Peel Plateau, Peel Plain, and adjacent areas, Northwest Territories and Yukon

2007 ◽  
Author(s):  
L J Pyle ◽  
T L Allen ◽  
T A Fraser ◽  
L P Gal ◽  
T Hadlari ◽  
...  
Keyword(s):  
Northwest Territories ◽  
Peel Plateau

Communications facilities and user problems in the Canadian Arctic

Polar Record ◽  
1968 ◽  
Vol 14 (90) ◽  
pp. 305-314
Author(s):  
T. Ringereide
Keyword(s):  
Soviet Union ◽  
Northwest Territories ◽  
Indian Population ◽  
Total Population ◽  
Canadian Arctic ◽  
Yukon Territory ◽  
Land Area ◽  
Northern Boundary ◽  
The Soviet Union ◽  
The World

The total area of Canada (land area and fresh water) is around 10 million sq km, making it the second largest country in the world, second only to the Soviet Union.For various historic and economic reasons Canada's population of 20 million is very largely concentrated in the southern part of the country, with about twothirds of the population living in large urban centres. The heavy broken line on Fig 1 shows the northern boundary of the densely populated portion of Canada. Only 1·5 per cent of Canada's total population, or 300000 people, live north of this frontier, and out of this total only about 38000 live in the Yukon Territory and the Northwest Territories. The Yukon has a population of only twenty seven people per 1000 sq km, and the Northwest Territories of eight people per 1000 sq km. The total Eskimo population in both territories is about 13600 and the total Indian population some 8000.

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