Geological Survey of Canada, Current Research (Online) no. 2000-C1
Geological Survey of Canada, Current Research (Online) no. 2000-C1

Author: Sunil S. Gandhi

Publisher: Natural Resources Canada

Published: 2000

Total Pages: 15

ISBN-13: 0660180200

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A distinctive group of giant quartz veins characterizes the Great Bear magmatic zone east of Great Bear Lake, Northwest Territories. They are topographically conspicuous, have attracted attention from mineral prospectors, and contain occurrences of uranium, copper sulphides, and other minerals. This paper presents results of the first study of fluid inclusions from giant quartz veins in this zone. Samples were studied from the Crowfoot and Ted uranium occurrences. It begins with descriptions of the regional geological setting, the quartz veins and associated stockworks, and the two occurrences studied. It then describes the fluid inclusion study methodology, petrographic observations, and temperature & salinity determinations of the fluid inclusion samples. The results are discussed with respect to the multi-stage developmental history of the quartz veins.

Geological Survey of Canada, Current Research (Online) no. 2002-C7
Geological Survey of Canada, Current Research (Online) no. 2002-C7

Author: Daniel E. Kerr

Publisher: Natural Resources Canada

Published: 2002

Total Pages: 10

ISBN-13: 0660187272

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This paper summarizes ongoing surficial geology studies and geochemical analyses of till & vegetation in the Yellowknife Greenstone Belt. It first describes the sampling & analytical methods used, the regional geologic setting, and the types of surficial sediments found in the study area. It then presents results regarding ice flow directions, the occurrence of gold grains in till, and soil & vegetation geochemical profiles.

Geological Survey of Canada, Current Research (Online) no. 2000-B4
Geological Survey of Canada, Current Research (Online) no. 2000-B4

Author: J. C. Harrison

Publisher: Natural Resources Canada

Published: 2000

Total Pages: 13

ISBN-13: 0660180189

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The Hazen Formation is an especially significant unit in northern Ellesmere Island and Greenland, as its depositional history spans the Cambrian to Silurian and underlies (and is exposed) throughout a substantial portion of the Arctic Islands. Four of its subdivisions can be mapped individually and correlated over at least 100 kilometres. This paper provides preliminary observations concerning the nature and correlation of the Hazen Formation with age-equivalent portions of the basinal succession in northern Greenland and the adjacent shelf succession of north-east Ellesmere Island. The paper describes the stratigraphy of the outer- shelf and basin-fill successions exposed on Judge Daly Promontory, the five mapped subdivisions of the Hazen Formation, and the age & correlations of the Formation.