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BUL 051

Petrology and geochemistry of the Canadian Shield of northeastern Alberta

The remnant, central belt of granodioritic to quartz-monzonitic gneiss, of I-type granitoid composition, is flanked on its western argin by fairly homogeneous protons of biotite quartz monzonite to granite (Slave and Arch Lake Granitoids), and on ... Show Abstract

Goff, S.P.  Godfrey, J.D.  Holland, J.G.  1986-01-01

BUL 052

Geophysical expression of the Canadian Shield of northeastern Alberta

The Canadian Shield of northeastern Alberta has a geophysical expression controlled by lithology and complex structural- metamorphic features. The magnetic field of the Alberta Shield (the exposed part of the Canadian Shield in Alberta) shows a ... Show Abstract

Sprenke, K.F.  Wavra, C.S.  Godfrey, J.D.  1986-01-01

ESR 1978-01

Geology of the Alexander-Wylie Lakes District, Alberta

Geology of the Alexander-Wylie Lakes District, Alberta The geology of 486 square miles (1254 square km) of Precambrian Shield in northeastern Alberta is presented on four colored map sheets at a scale of 2 inches to 1 mile.Sixteen main rock types ... Show Abstract

Godfrey, J.D.  1980-01-01

ESR 1978-03

Geology of the Fort Chipewyan District, Alberta

The geology of 432 square miles (1110 square km) of Precambrian Shield in northeastern Alberta is presented on four map sheets at a scale of 2 inches to 1 mile. A late Hudsonian retrograde greenschist facies metamorphism affected all Shield rocks ... Show Abstract

Godfrey, J.D.  1980-01-01

ESR 1984-07

Fitzgerald, Tulip-Mercredi-Charles Lakes district, Alberta

A major structural feature in the Slave Granitoid body, the Tulip Dome, contains symmetrical screens of narrow high grade metasedimentary rock bands that define a ghost stratigraphy. Small scale domal and basinal structures within the north section ... Show Abstract

Godfrey, J.D.  Langenberg, C.W.  1986-01-01

ESR 1984-05

Bocquene-Turtle Lakes district, Alberta

Geochronology and electron microprobe mineral analyses show that an Archean high-pressure granulite facies metamorphism was followed by an Aphebian moderate-pressure facies metamorphism. K-Ar dates on biotite and hornblende of approximately 1800 Ma ... Show Abstract

Godfrey, J.D.  1987-01-01

ESR 1984-06

Myers-Daly Lakes district, Alberta

The latter are regarded as the protolithic material from which the granitoids were formed in the course of ultrametamorphism and partial melting.The crystalline rocks have recorded metamorphic conditions ranging from high pressure granulite to low ... Show Abstract

Godfrey, J.D.  Langenberg, C.W.  1987-01-01

ESR 1984-02

Geology of the Ryan-Fletcher Lakes district, Alberta

The bedrock geology in the study area consists of three major belts, from west to east: the granitoids, a migmatite zone and a granite gneiss belt adjacent to Lake Athabasca. A narrow band of prograde greenschist facies metasedimentary rock lies in ... Show Abstract

Godfrey, J.D.  1984-01-01

ESR 1962-02

Geology of the Colin Lake District, Alberta

The geology of a 75 square mile area in the Precambrian Shield of northeastern Alberta is shown on a colored map of a scale of 2 inches to 1 mile. The predominant feature of this map area is the Colin Lake synclinorium whose folded axis plunges ... Show Abstract

Godfrey, J.D.  Peikert, E.W.  1964-01-01

ESR 1962-01

Geology of the St. Agnes Lake District, Alberta

The geology of a 74 square-mile area in the Precambrian Shield of northeastern Alberta is shown on a colored map of a scale of 2 inches to 1 mile. The western part of the map-area is underlain by a granite gneiss complex containing bands and ... Show Abstract

Godfrey, J.D.  Peikert, E.W.  1963-01-01

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