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  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
The Cordilleran Miogeosyncline in North America: Geologic Evolution and Tectonic Nature

The Cordilleran Miogeosyncline in North America: Geologic Evolution and Tectonic Nature

Lyatsky, Henry V.
Lyatsky, Vadim B.

Paperback

Series: Lecture Notes in Earth Sciences, Book 86

Medical ReferenceGeologyPhysics

ISBN10: 3540661972
ISBN13: 9783540661979
Publisher: Springer Nature
Published: Aug 19 1999
Pages: 388
Weight: 1.27
Height: 0.85 Width: 6.14 Depth: 9.21
Language: English
Steep crustal-scale faults, having their origins in the Late Archean and Early Proterozoic and trending NE-SW, which define the fundamental block lithospheric structure of the North American craton, are seen from geological and geophysical evidence to continue far into the interior of the Late Proterozoic-Phanerozoic Canadian Cordilleran mobile megabelt. This suggests that variously reworked ex-cratonic basement blocks underlie much of the Cordillera. The western edge of the modern craton is probably near the Rocky Mountain-Omineca belt boundary; the Rocky Mountain fold-and-thrust belt on the east side of the Cordillera is evidently rootless and overlies the undisturbed cratonic basement. Phanerozoic differences between the Cordilleran tectonic belts, resulting from a long, dissimilar, multi-cycle history of waxing and waning orogenesis apparent from the rock record, lie chiefly in the degree of indigenous tectonic remobilization and reworking of the ancient crust.

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