Overlapping of late mesozoic orogens in western Idaho
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Abstract
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.
Study Area
Publication type | Article |
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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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