Rocks of the Solitude Range, British Columbia, have been metamorphosed from chloritoid-chorite-zone to kyanite-zone conditions. The grade of metamorphism increases southwestward toward the Rocky Mountain Trench (RMT) and the Omineca Belt. Isograds crosscut lithologies and trend more northerly than deformation 2 (D2) structures and the RMT. They are thought to have been quenched syn-to post-D2. Pelitic (Mahto Formation) and calc-pelitic (Tsar Creek unit) rocks contain assemblages that reflect the increase in metamorphic grade. Physical conditions of metamorphism are estimated to be approximately 450-540°C from the garnet to the kyanite zone; pressures averaged 6-7 kbar (1 kbar = 100 MPa). The pressures, temperatures, and metamorphic assemblages are very similar to those of the Adamant Range, which lies across the Purcell Thrust, to the southwest. This is in contrast with the Big Bend area, to the northwest, where differences in pressure across the Purcell Thrust (PT) have been documented. Two possible models to explain these contrasting relationships are presented. One model suggests that there was post-movement heating on the PT, which reduced the metamorphic contrast across the PT. The second model suggests that a combination of thrust and normal faulting, including warping of isobaric surfaces, has produced an apparently unbroken metamorphic sequence across the PT.Les roches de la chaine Solitude, en Colombie-Britannique, ont Ct C mCtamorphiskes dans les conditions zonkographiques de chloritoide-chlorite a kyanite. Le degrC de mCtamorphisme augmente en direction sud-ouest, vers le sillon des Rocheuses et la ceinture d'Omin6ca. Les isogrades coupent en travers les lithologies, et leurs directions sont plus vers le nord que le sont les structures de dtformation 2 (D2) et le sillon des Rocheuses. I1 semble que ces isogrades soient dtlimitCes par la dCformation syna post-D2. Les roches pklitiques (Formation de Mahto) et calco-pklitiques (unit6 de Tsar Creek) renferment des assemblages qui tkmoignent d'un accroissement du degrk de mCtamorphisme. Les conditions physiques du mktamorphisme sont estimkes approximativement de 450 a 540°C pour la zone du grenat 5 la kyanite; la moyenne des pressions est 6-7 kbar (1 kbar = 100 MPa). Les pressions, tempCratures et assemblages mCtamorphiques ressemblent de tres prbs 5 ceux de la chaine Adamant qul traverse le charriage de Purcell, au sud-ouest. Ces conditions sont diffkrentes de celles de la rCgion de Big Bend, au nordouest, oh des diffkrences de pression au travers la nappe de Purcell ont Ctk mises en Cvidence. Deux modeles plausible sont prCsentCs pour expliquer ces conditions contrastantes. Un modele suggere qu'il y a eu un Cchauffement postkrieur au mouvement de charriage de Purcell, qui a attknuk le contraste mktamorphique au travers la nappe. Le deuxikme modele lnvoque une combinaison de charriage et crCation de failles normales, incluant un gauchissement des surfaces isobariques, qui aurait produit une sCquence mktamorphique d'apparence continue au travers la nappe de...

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The anchor field in northern Mackenzie corridor is Norman Wells oil field, the reservoir of which is the Middle Devonian Kee Scarp Member of Ramparts Formation. Petroleum resource assessment of the corridor is a project within the Geological Survey of Canada's "Secure Canadian Energy Supply" program (2005-2009). The output of the project is to update geoscience information and provide hydrocarbon resource assessments for use by northern communities and energy resource exploration companies. The Kee Scarp play is an established, immature play for oil and solution gas and a conceptual play for non-associated gas (Hannigan et al., 2006). The play lies within the Interior Plains/Platform and Mackenzie Arc exploration regions of the northern Canadian mainland sedimentary basin, in Peel and Anderson plains, and Mackenzie Plain, Franklin and Mackenzie Mountains areas of Morrow et al. (2006; Figure 1). The play has also been referred to as an established Kee Scarp reef oil play and conceptual Middle Devonian play (Kee Scarp Member outside of Norman Wells area) by Canadian Gas Potential Committee (2001) and as Kee Scarp play by Gal (2007). Two play areas, bounded by erosional, depositional, and outcrop limits, are defined in this report: Kee Scarp Reefs/Ramparts Platform Interior Plains, containing 20 exploration wells, and Kee Scarp Reefs/Ramparts Platform Northern Foldbelt within which 408 wells tested the play (Figure 1, Table 1). Surface data from Ramparts Formation (Kee Scarp Member) comes mainly from the foldbelt of the northern Franklin and Mackenzie mountains while subsurface information is derived mainly from well history reports. Two Geological Survey of Canada Open File reports (Fischbuch, 1984; Williams, 1985) contain cross-sections and describe facies/reservoir distributions of the Kee Scarp reef. This report summarizes surface and subsurface geological framework and petroleum play data for the Kee Scarp play, including elements of the potential petroleum system such as qualitative porosity and permeability of reservoir rocks, possible source rocks and thermal maturity level, and trap formation and seal rocks.

Peel Plateau and Peel Plain have widespread hydrocarbon potential and have been identified by industry stakeholders as a high-priority exploration region, yet the area is underexplored and its geological history remains poorly understood. The Northwest Territories Geoscience Office and collaborators initiated a multidisciplinary study in 2005, "Regional Geoscience Studies and Petroleum Potential, Peel Plateau and Plain, Northwest Territories and Yukon", the focus of which is to expand geoscience knowledge in the Peel Plateau and Peel Plain. As part of this project, fieldwork reported here was conducted in 2006 in the southern Peel Plateau and Peel Plain and northern Mackenzie and Franklin mountains. Detailed structural mapping was carried out along major structures, such as the Tabasco, Deadend, and Southbound faults, as well as across the Imperial anticline.