The Yellowknife greenstone belt has produced approximately 14 million ounces of gold, 13 of which came from the well explored southern half of the belt. The northern half of the belt, where the Discovery Property (1 million ounce past producer) is located, is not as well explored, but geologically very similar to the gold producing southern half. Gold on the Discovery Property, Northwest Territories, has been historically mined from a quartz vein formed adjacent to Archean metabasaltic bodies enclosed in metasedimentary rocks. Some of the metasedimentary rocks are correlated to the Archean Banting Group, based on a U-Pb age of 2.66 Ga on zircon (SHRIMP-RG). The metabasalt is correlated to the Banting Group based on its deposition relationship with the adjacent metasedimentary rocks. The Banting Group is present in the Yellowknife greenstone belt, located near the well-known Con and Giant Mines near Yellowknife, 90 km to the south. The two gold deposits forming the Discovery Property contains almost 2 million ounces in past production and current resources. The historical Discovery Mine was developed in quartz veins hosted in the metasedimentary rocks folded around the northern tip of one of the metabasalt bodies. In contrast, the newly defined Ormsby Zone consists of gold in silicified and sulphidized domains within metamorphosed pillowed and brecciated mafic volcanic rocks, and shares many characteristics with other Archean Orogenic gold deposits. Pyrrhotite ± arsenopyrite is directly correlated with the gold-bearing zones. Gold is also associated with pyrite and retrograde phases of chlorite, sericite and carbonate. Through detailed outcrop mapping and petrography the history of structural and metamorphic events are sequenced and the relative time of gold mineralization placed into the geological framework. Peak-metamorphic mineral assemblages on the property record upper greenschist to amphibolite facies conditions. Rocks on the Discovery Property have undergone at least four foliation-forming, deformational events. Three generations of folding are described, as well as a vertical lineation across the property. Gold mineralization occurred post-ductile fabric forming deformation, post-peak metamorphism, and syn-retrograde metamorphism. Although no visible evidence was observed mapping, metamorphic data present the possibility of a regional scale fault separating two metamorphic domains on the property. / Science, Faculty of / Earth, Ocean and Atmospheric Sciences, Department of / Graduate

Two separate areas which are located in the southern portion of the Coppermine River area were surveyed by the author during the summer of 1957. The area under investigation is underlain by the upper part of the Epworth Series and the lower part of the Coppermine River Series. Because of the lack of fossils in these series, they are presumed to be of late Precambrian age. The upper part of Epworth Series is represented by dolomite and interbedded quartzite. The lower part of the Coppermine River Series is represented by a series of basalt flows which are typical tholeiites, and interbedded sandstone in its upper part. A monzonite dyke crosses the basalt flows and sandstone at a high angle and is parallel to the main basaltic dyke swarm seen in the Takiyuak Lake area. The common structural feature is a series of tension faults trending from N10°E to N45°E and N10°W to N20°W, This is believed to have originated by the compressive force from the north induced by the Caledonian movement. The ore minerals, mainly chalcocite, occur in quartz-carbonate veins in feeder dykes and flow tops of basalt. Flakes of native copper are occasionally found in the fractures of the basalt flows. / Science, Faculty of / Earth, Ocean and Atmospheric Sciences, Department of / Graduate

No abstract included. / Arts, Faculty of / History, Department of / Graduate

Reindeer (Eangifev tarandus tarandus L.) winter rangeland in the Tuktoy-aktuk Peninsula area, N.W.T., was studied using a ground-truth/large-scale (1:1,400-1:3,400) remote sensing program. Ground-truth of vegetation, soils and general environment was conducted at 112 representative sites located throughout the study area. Two-way indicator species analysis (TWINSPAN) of vegetation cover by 420 plant taxa assigned sites among four broadly-defined 'vegetation groups'. The vegetation groups could be considered as ecosystemic units since they are also differentiated by a range of site parameters, including slope position classes, general cover features measured in 10 m x 10 m plots, mineral soil texture classes, the occurrence of organic soils and ice-wedge polygons, and certain soil physical and chemical parameters. Lichens are of particular importance as the winter diet mainstay for the reindeer, and differences among vegetation groups are reflected by dominant lichen taxa, and lichen ground cover, biomass and standing crop estimates. Lichen cover at sites ranged up to 89.3% and, for sites where lichen cover >20%, standing crop ranged from 194.4 to 6,377.6 kg.ha⁻¹. Large-scale colour-infrared (CIR) 70 mm stereo photographs were acquired throughout the study area along 44 flightlines, and a total of 1,469 photo-frames were interpreted and inventoried. Data were summarized according to 7 reindeer management zones defined within the study area. / Forestry, Faculty of / Graduate

This study of politics in the Northwest Territories concentrates on the period from 1966 to 1976 and is organized around the central theme of ethnicity. While other approaches to politics in the N.W.T. are possible, that of political development has been rejected as inappropriate and that of dependence has been set aside in so far as possible to allow concentration on the internal political system in the N.W.T. This thesis attempts to establish that ethnicity is salient in politics in the N.W.T. and to describe the resulting implications for conflict regulation. Ethnic groups are defined as groups sharing a common set of values, beliefs, and goals, bound by kinship ties, and possessing a set of communal institutions separate and apart from those of other groups. If ethnicity is salient, then evidence should be found that critical issues deal with questions of scarcity, that conflict groups are organized along ethnic lines, and that problems of legitimacy arise from the tendency toward secession inherent where ethnicity is salient. A framework for discussion of the implications for conflict regulation is provided by Nordlinger in his Conflict Regulation in Divided Societies. A discussion of indigenous societies before the arrival o of Europeans is provided along with a consideration of the changes brought by the fur trade, mineral exploration, and the development of permanent settlements after WW II. After 1966 instead of a single integrated society and culture in the N.W.T., there is a dual economy and society divided along ethnic lines between Whites with their middle-class, southern Canadian culture on the one hand, and the two indigenous native groups, the Dene and the Inuit, on the other. These divisions are reflected in the existence of both a modern wage economy and a traditional land-based economy in the N.W.T. and in the differing sets of goals, values, and beliefs of native and White people in the N.W.T. Evidence for the salience of ethnicity is provided in three areas: 1) each of the central political issues in the N.W.T. involves scarcity in that both native and White positions cannot be adopted simultaneously, 2) conflict groups are at least partially organized along ethnic lines, and 3) legitimation problems are evident at the three levels of electoral politics in the N.W.T. The implications of the recognition of the salience of ethnicity in politics in the N.W.T. are examined in terms of the elements necessary for successfulv conflict regulation as set out by Nordlinger. While the necessary condition of structured elite predominance appears to exist, conflict group leaders appear to lack conflict regulating motives which would create sufficient conditions for conflict regulation. Further, the only conflict regulating practice which appears to offer any hope of success is a combination of compromise and concession. The attempt to produce a workable compromise might introduce division among native groups in the N.W.T. and even of the N.W.T. itself. The possibility of devising any compromise which could regulate conflict in the N.W.T. is made even more remote by the dependent status of the N.W.T. and outside pressure for development. / Arts, Faculty of / Political Science, Department of / Graduate

The exploitation of salmon resources was once central to the economic life of the Northwest Coast. The organization of technological skills and information brought to the problems of salmon utilization by Northwest Coast fishermen was directed to obtaining sufficient calories to meet the requirements of staple storage foods and fresh consumption. This study reconstructs selective elements of the traditional salmon fishery drawing on data from the ethnographic record, journals, and published observations of the period prior to intensive white settlement. To serve the objective of an ecological perspective, technical references to the habitat and distribution of Pacific salmon (Oncorhynchus sp.) are included. The aim of the work is to assess the relationship of salmon technology complexes to ecological conditions at fishery sites. It is an examination of the operating principles in traditional systems of salmon production. A model of the fishery is suggested: during migration anadromous salmon pass through a number of time and space segments where they can be intercepted by fishermen. A coincidence of appropriate elements will define a fishery site, i.e., the characteristics of the prey, accessibility to resource locations, natural features of the environment, and the enterprise of fishermen. The interaction of these and their constituent variables provides a range of selective strategies to be used, analyzed in this study with reference to specific Northwest Coast ethnic divisions and geographic locations. Twenty-four ethnic or areal divisions within the Northwest Coast culture area were studied. The results of the research are presented in Part One supported by distribution maps and illustrative materials. Lists of reference tables for each of twelve systems of salmon production are contained in an Appendix. Part Two includes technical information about Oncorhynchus sp. and its habitat. Part Three is an analysis of social, ecological, and technological elements in several stages of inter-relation, including an interregional comparison in the final section. An Index of Salmon Abundance and a comparison of selected resource areas provide statistical evidence (Appendix II and III). / Arts, Faculty of / Anthropology, Department of / Graduate

James Wintle's, Northwest Miniatures for flute, trumpet and piano is a unique work in the chamber music repertoire. In addition, the use of auxiliary instruments makes this piece a rarity in the flute and trumpet chamber music repertoire. There are a limited number of resources presently available to performers regarding Northwest Miniatures.This dissertation provides a pedagogical performance guide addressing the inherent challenges for the flutist and this instrumentation and serves as a new resource for performers and scholars of this work. It provides a performance analysis of the piece along with pertinent pedagogical information and exercises to assist the flutist. Insight from the composer on how to address these challenges is also included. Because there are a limited number of scholarly resources available on the subject of flute and trumpet chamber music, this dissertation is a significant contribution to this genre of repertoire.

No description available.

No description available.

No description available.