Overlapping of late mesozoic orogens in western Idaho

Geological Society of America Bulletin



Early formed rocks of the border zone of the Idaho batholith are thrust westward over the low-grade metavolcanic rocks of the Seven Devils Mountains. Late intrusions of the border zone cut out upper plate rocks and contact-metamorphose lower plate rocks. Granitic intrusions in the Seven Devils complex are metamorphosed near the border zone of the Idaho batholith. Such relationships are interpreted in the light of a regional synthesis to indicate the overlapping and oblique truncation of the eastern part of a belt deformed largely during Jurassic time by the western part of a tectonic belt active during early stages of the middle Cretaceous events that produced the Idaho batholith. 

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Publication type Article
Publication Subtype Journal Article
Title Overlapping of late mesozoic orogens in western Idaho
Series title Geological Society of America Bulletin
DOI 10.1130/0016-7606(1963)74[779:OOLMOI]2.0.CO;2
Volume 74
Issue 6
Year Published 1963
Language English
Publisher Geological Society of America
Description 9 p.
First page 779
Last page 787
Country United States
State Idaho
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