The Cordilleran Miogeosyncline in North America - Geologic Evolution and Tectonic Nature (Paperback)

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.

General

Imprint:	Springer-Verlag
Country of origin:	Germany
Series:	Lecture Notes in Earth Sciences, 86
Release date:	2001
First published:	1999
Authors:	Henry V. Lyatsky • Vadim B. Lyatsky
Dimensions:	235 x 155 x 22mm (L x W x T)
Format:	Paperback
Pages:	388
ISBN-13:	978-3-540-66197-9
Categories:	Books > Science & Mathematics > Physics > Applied physics & special topics > Geophysics Books > Earth & environment > Earth sciences > Geology & the lithosphere > Historical geology
LSN:	3-540-66197-2
Barcode:	9783540661979

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