scholarly journals Exploring for lead and zinc using indicator minerals with stream silt and water geochemistry in the Canadian arctic islands: an example from Victoria Island, Northwest Territories

2017 ◽  
Author(s):  
M McCurdy ◽  
R Rainbird ◽  
R McNeil
Keyword(s):  
Northwest Territories ◽  
Canadian Arctic ◽  
Water Geochemistry ◽  
Lead And Zinc ◽  
Victoria Island ◽  
Indicator Minerals

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

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.

Characterization and dispersal of indicator minerals associated with the Pine Point Mississippi Valley-type (MVT) district, Northwest Territories, Canada

2015 ◽  
Vol 52 (9) ◽  
pp. 776-794 ◽  
Author(s):  
N.M. Oviatt ◽  
S.A. Gleeson ◽  
R.C. Paulen ◽  
M.B. McClenaghan ◽  
S. Paradis
Keyword(s):  
Northwest Territories ◽  
Major Element ◽  
Bimodal Distribution ◽  
Mississippi Valley ◽  
Element Geochemistry ◽  
Element Concentrations ◽  
Pine Point ◽  
Indicator Minerals ◽  
Mississippi Valley Type ◽  
Valley Type

A glacial dispersal study was conducted around a subcropping Pb–Zn deposit (O28) in the Pine Point Mississippi Valley-type (MVT) district, Northwest Territories, Canada, with the intent of characterizing and documenting the indicator minerals and their dispersal from a known orebody. Mapping of striations adjacent to deposit O28, and throughout the Pine Point district, along with observed glacial stratigraphy, indicate that there are three phases of ice flow that have affected the Pine Point district. Sphalerite, galena, and pyrite were identified in mineralized bedrock samples at deposit O28, and sphalerite and galena were recovered from the sand fraction of till samples up to 500 m from the mineralized subcrop. The majority of sphalerite and galena grains recovered from till samples down-ice of deposit O28 were 0.25–0.5 mm in size. Size and morphology of sphalerite grains in till demonstrate relative proximity to their bedrock source, with the largest and more angular grains being closer to the ore zone (<50 m) whereas smaller and more rounded grains occur further down-ice (∼250 m). The paragenesis, textures, major-element concentrations, and S and Pb isotopic compositions of bedrock samples from deposit O28 and from newly drilled core from four other deposits were characterized. Concentrations of Zn in bedrock sphalerite grains range from 43.95 to 67.48 wt.%, concentrations of S range from 32.03 to 34.01 wt.%, and concentrations of Fe range from 0.02 to 16.94 wt.%. The Fe concentration in bedrock sphalerite decreases from east to west across the district. Concentrations of S in galena grains in bedrock range from 12.50 to 14.00 wt.% and have a bimodal distribution. Generally, the geochemistry of sphalerite grains recovered from till were statistically similar to bedrock grains recovered from deposits O28 and L65. Major-element concentrations were statistically the same between the sphalerite grains recovered from till and the honey-brown and cleiophane varieties in the bedrock samples. Galena grains recovered from till samples were similar to the cubic and fracture-fill varieties of grains recovered from bedrock in the R190 and M67 deposits. Sulphur isotopic values for sphalerite grains from bedrock range from 20.6‰ to 24.2‰, while those from till samples range from −5.3‰ to 24.4‰. Lead isotopic ratios for galena grains from bedrock and till samples had very little variation, which is a characteristic of the Pine Point district. The S and Pb isotopic studies as well as major-element geochemistry suggest that indicator minerals derived from Pine Point-type mineralization can be distinguished from those sourced from other types of carbonate-hosted mineralized systems (e.g., Cordilleran zinc–lead deposits) and that the methods here can be used as exploration tools for identifying MVT deposit provenance or potential. The results of this study present criteria and highlights additional methods for exploration of MVT deposits in glaciated terrain.

Physical and chemical limnology of a 61-lake transect across mainland Nunavut and southeastern Victoria Island, Central Canadian Arctic

2009 ◽  
Vol 175 (2) ◽  
pp. 93-112 ◽  
Author(s):  
Karlyn S. Westover ◽  
Katrina A. Moser ◽  
David F. Porinchu ◽  
Glen M. MacDonald ◽  
Xiaowa Wang
Keyword(s):  
Canadian Arctic ◽  
Victoria Island ◽  
Physical And Chemical

HEXATYLUS MULVEYI N. SP. AND DELADENUS DURUS (COBB, 1922) THORNE, 1941 (NEMATODA: NEOTYLENCHIDAE) FROM THE CANADIAN ARCTIC

1964 ◽  
Vol 42 (4) ◽  
pp. 649-653 ◽  
Author(s):  
V. M. Das
Keyword(s):  
Northwest Territories ◽  
Canadian Arctic ◽  
Ellesmere Island ◽  
Single Line

Hexatylus mulveyi n. sp. and Deladenus durus (Cobb, 1922) Thorne, 1941, collected from soil in the Lake Hazen area of Ellesmere Island, Northwest Territories, are figured and described. H. mulveyi differs from H. viviparus Goodey, 1926 in the shape of the tail, the number of incisures, the single line of oocytes in the ovary, and in the vulva having elevated lips.

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