Current Research 1998-C.

Current Research 1998-C.
Author: Geological Survey of Canada
Publisher:
Total Pages: 200
Release: 1998
Genre: Nature
ISBN:

Review of geological research related to the Canadian Shield provides papers covering topics such as these: gravity profiles across the Sleepy Dragon Complex in the Slave structural province, Northwest Territories; surficial geology & implications for drift prospecting, Hope Bay area NWT; metallogeny in the western Churchill Province; Precambrian geology progress report in Keewatin; various papers about the Kaminak greenstone belt, NWT; tectonostratigraphy of central Sturgeon Lake, Ontario; structural transect of the central Wabigoon subprovince, Ont.; sedimentology of the Oak Ridges Moraine, Ont.; origin of the Kipawa syenite complex, Quebec; the Obedjiwan nepheline syenite, Que.; and geochemistry & petrogenesis of the Lapeyrère gabbronorite, Que.

Geological Survey of Canada, Current Research (Online) no. 2004-C7

Geological Survey of Canada, Current Research (Online) no. 2004-C7
Author: Edith Martel
Publisher: Natural Resources Canada
Total Pages: 14
Release: 2004
Genre: Geological time
ISBN: 0662371313

This report presents findings of a bedrock geological mapping project carried out in 2003 in the Ferguson Lake area, located about 200 kilometres west of Rankin Inlet, Nunavut. The project was initiated to provide better understanding of the geology & deformation history of the area and to put a local nickel-copper-platinum group element deposit into a regional context. The main part of the report describes the rock units exposed in the area (metamorphosed supracrustal rocks and intrusive rocks) and the area's structural elements (gneissosity, folds, foliation, shear zones, faulting). An attempt is then made to correlate the deformational features observed in the area with those documented by other researchers. Finally, implications of the findings for the timing of mineralization are briefly discussed.

Geological Survey of Canada, Current Research (Online) no. 2000-C22

Geological Survey of Canada, Current Research (Online) no. 2000-C22
Author: John A. Percival
Publisher: Natural Resources Canada
Total Pages: 10
Release: 2000
Genre:
ISBN: 0660180413

This paper examines possible stratigraphic linkages across the central Wabigoon Subprovince in north-west Ontario, based on a revised interpretation of the Obonga greenstone belt. After a review of previous mapping & interpretations, the paper presents information on stratigraphy & structure and on lithologies in the various zones or assemblages of the Obonga belt, and discusses outstanding research issues to be resolved. Finally, possible correlations among the Obonga, Sturgeon-Savant, and Onaman-Tashota belts are explored.

Geological Survey of Canada, Current Research (Online) no. 2000-C12

Geological Survey of Canada, Current Research (Online) no. 2000-C12
Author: Lawrence B. Aspler
Publisher: Natural Resources Canada
Total Pages: 12
Release: 2000
Genre:
ISBN: 0660180316

This report presents results of geologic fieldwork that updates mapping in the Sealhole-Fitzpatrick lakes area west of Hudson Bay, Nunavut, with a focus on the paleogeographic and structural evolution of the Henik, Montgomery, and Hurwitz groups. Along with descriptions of the Archean to Paleoproterozoic rocks and their stratigraphic relationships, the report discusses the area's geologic structure and the evidence for Archean and Paleoproterozoic deformation.

Geological Survey of Canada, Current Research (Online) no. 2000-C2

Geological Survey of Canada, Current Research (Online) no. 2000-C2
Author: Wouter Bleeker
Publisher: Natural Resources Canada
Total Pages: 11
Release: 2000
Genre:
ISBN: 0660180219

The Slave Province is a relatively small but well-exposed Archean craton in the north-west part of the Canadian Shield. Mapping of quartzite & banded iron formation occurrences throughout the Province since the 1970s has resulted in the conclusion that the overall topology of all greenstone belts in the central & western parts of the Province permits all such occurrences to be correlated into a single cover sequence, the Central Slave Cover Group. Following a brief historical overview, this paper presents field evidence for the discovery & successful correlation of that cover sequence across much of the craton. It then presents detrital zircon data to bolster this correlation, in particular to show that what was earlier mapped as a Paleoproterozoic cover sequence in central Wopmay Orogen is in fact part of the Central Slave Cover Group. The extension of the Cover Group into the north-western Slave Province have implications for the architecture & evolution of continental crust older than 2.85 billion years.

Geological Survey of Canada, Current Research (Online) no. 2000-E5

Geological Survey of Canada, Current Research (Online) no. 2000-E5
Author: T. J. Katsube
Publisher: Natural Resources Canada
Total Pages: 8
Release: 2000
Genre: Sedimentary rocks
ISBN: 0660182092

This study presents theoretical aspects and results of analyzes of the adsorbed water thicknesses and number of water molecular layers on pore surfaces for 11 sedimentary rock samples obtained from 850-950 metres depth in a Northwest Territories well. An additional purpose of the study was to determine if the adsorbed water content shows an increase with decreased temperature below 25 degrees C. Information is included on the analytical methodology. The results provide information that can be used to model the effect of temperature on the permeability history of compacting shale & mudstone under low temperature environments.