Phacops and other trilobites from Emsian age beds of the Delorme Formation, Mackenzie Mountains, Northwest Territories

1976 ◽  
Vol 13 (10) ◽  
pp. 1466-1478 ◽  
Author(s):  
D. G. Perry ◽  
B. D. E. Chatterton
Keyword(s):  
Northwest Territories ◽  
Arctic Canada ◽  
Southeastern Australia ◽  
Mackenzie Mountains ◽  
First Time ◽  
Late Emsian

The trilobite genus Phacops is documented for the first time in northwestern or Arctic Canada from Emsian age beds of the Delorme Formation, western Mackenzie Mountains. Phacops natlenis n. sp. is described; it shows closest morphologic affinity to P. spedeni Chatterton from late Emsian age beds of southeastern Australia. Other Emsian trilobite genera from the Delorme Formation in the Sekwi Mountain map-area, Mackenzie Mountains include: Lacunoporaspis, Ceratarges?, Acanthopyge (Mephiarges), Leonaspis, and Koneprusia?.

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.

Potassium–argon ages of intrusion and scheelite mineralization, Cantung, Tungsten, Northwest Territories

1978 ◽  
Vol 15 (7) ◽  
pp. 1205-1207 ◽  
Author(s):  
Douglas A. Archibald ◽  
Alan H. Clark ◽  
Edward Farrar ◽  
U Khin Zaw
Keyword(s):  
Northwest Territories ◽  
Late Stage ◽  
Upper Cretaceous ◽  
Quartz Monzonite ◽  
Mackenzie Mountains ◽  
Tungsten Mineralization

K–Ar dating of magmatic biotite, and of hydrothermal biotite and muscovite, demonstrates that quartz monzonite intrusion and exoskarn scheelite mineralization at Cantung, N.W.T., took place over a brief interval in the Upper Cretaceous (ca. 91 Ma). The regional age relationships of magmatic and ore-forming activity in the Logan–Mackenzie Mountains are poorly defined, but it is tentatively inferred that tungsten mineralization may have been related to a late stage in the plutonic development of the area.

Frequency of consumption of foods and beverages by Inuvialuit adults in Northwest Territories, Arctic Canada

2012 ◽  
Vol 63 (7) ◽  
pp. 782-789 ◽  
Author(s):  
Francis Zotor ◽  
Tony Sheehy ◽  
Madalina Lupu ◽  
Fariba Kolahdooz ◽  
Andre Corriveau ◽  
...  
Keyword(s):  
Northwest Territories ◽  
Arctic Canada

Demography of Dall's Sheep in the Mackenzie Mountains, Northwest Territories

1984 ◽  
Vol 48 (1) ◽  
pp. 156 ◽  
Author(s):  
N. M. Simmons ◽  
M. B. Bayer ◽  
L. O. Sinkey
Keyword(s):  
Northwest Territories ◽  
Mackenzie Mountains ◽  
Dall’S Sheep

A reassessment of transport mechanisms of some rock avalanches in the Mackenzie Mountains, Yukon and Northwest Territories, Canada

1990 ◽  
Vol 27 (1) ◽  
pp. 129-144 ◽  
Author(s):  
P. K. Kaiser ◽  
J. V. Simmons
Keyword(s):  
Debris Flow ◽  
Northwest Territories ◽  
Valley Bottom ◽  
Flow Simulations ◽  
Rock Avalanches ◽  
Field Evidence ◽  
Debris Transport ◽  
Glacier Ice ◽  
Mackenzie Mountains ◽  
New Hypothesis

The transport mechanism of some rock avalanches of the Mackenzie Mountains in the Yukon and Northwest Territories of Canada is reassessed on the basis of evidence collected during fieldwork and by comparison with results from numerical simulations of the debris flow mechanism. A new hypothesis of glaciation-related transport is advanced as an alternate explanation of apparently very mobile rock avalanches with anomalous travel distances. By the example of the Avalanche Lake slide, it is demonstrated that the debris was most likely not deposited on the current topography but on valley glacier ice at an elevation of about 400–500 m above the valley bottom. This conclusion is supported by field evidence, an empirical runup relationship, and the results from numerical flow simulations. A qualitative interpretation of other debris deposits suggests that several events in the Mackenzie Mountains can be interpreted in the same manner. Key words: rock avalanches, rock slides, debris transport, debris flow modelling, Mackenzie Mountains, Northwest Territories.

scholarly journals Dietary Intake in a Population Undergoing a Rapid Transition in Diet and Lifestyle: The Inuvialuit in the Northwest Territories of Arctic Canada

2009 ◽  
Vol 100 (6) ◽  
pp. 442-448 ◽  
Author(s):  
Sangita Sharma ◽  
Elsie De Roose ◽  
Xia Cao ◽  
Anita Pokiak ◽  
Joel Gittelsohn ◽  
...  
Keyword(s):  
Dietary Intake ◽  
Northwest Territories ◽  
Arctic Canada ◽  
Rapid Transition ◽  
Diet And Lifestyle

Helminths of wolves, Canis lupus L., in the Yukon and Northwest Territories

1973 ◽  
Vol 51 (10) ◽  
pp. 1087-1091 ◽  
Author(s):  
L. P. E. Choquette ◽  
G. G. Gibson ◽  
E. Kuyt ◽  
A. M. Pearson
Keyword(s):  
Northwest Territories ◽  
Echinococcus Granulosus ◽  
Canis Lupus ◽  
Trichinella Spiralis ◽  
Gastrointestinal Helminths ◽  
Taenia Hydatigena ◽  
First Time ◽  
Toxascaris Leonina

Wolves from the Yukon and Northwest Territories harbored the following gastrointestinal helminths: Alaria americana (10 of 171), A. arisaemoides (2/171), Diphyllobothrium sp, (1/171). Mesocestoidcs kirbyi (3/171), Taenia hydatigena (54/111), T. krabbei (63/111), T. pisiformis (2/111), T. serialis (41/111), Echinococcus granulosus (24/171), Toxascaris leonina (83/171). Uncinaria stenocephala (11/171), Spirocerca arctica (1/171), and S. lupi (1/171). Larval Trichinella spiralis occurred in 72 of 153 diaphragms. A. arisaemoides, M. kirbyi, and S. arctica were found for the first time in Canis lupus, while S. lupi, S. arctica, and the prevalence of T. spiralis in wolves are reported for the first time in Canada.

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