Bimodal magmatism, basaltic volcanic styles, tectonics, and geomorphic processes of the eastern Snake River Plain, Idaho
Brigham Young University Geology Studies
By: S.S. Hughes, R.P. Smith, W. R. Hackett, M. McCurry, S. R. Anderson, and G.C. Ferdock
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Abstract
Geology presented in this field guide covers a wide spectrum of internal and surficial processes of the eastern Snake River Plain, one of the largest components of the combined late Cenozoic igneous provinces of the western United States. Focus is on widespread Quaternary basaltic plains volcanism that produced coalescent shields and complex eruptive centers that yielded compositionally evolved magmas. The guide is constructed in several parts beginning with discussion sections that provide an overview of the geology followed by road directions, with explanations, for specific locations. The geology overview briefly summarizes the collective knowledge gained, and petrologic implications made, over the past few decades. The field guide covers plains volcanism, lava flow emplacement, basaltic shield growth, phreatomagmatic eruptions, and complex and evolved eruptive centers. Locations and explanations are also provided for the hydrogeology, groundwater contamination, and environmental issues such as range fires and cataclysmic floods associated with the region.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Bimodal magmatism, basaltic volcanic styles, tectonics, and geomorphic processes of the eastern Snake River Plain, Idaho |
| Series title | Brigham Young University Geology Studies |
| Volume | 42 |
| Issue | 1 |
| Year Published | 1997 |
| Language | English |
| Publisher | Brigham Young University |
| Description | 36 p. |
| First page | 423 |
| Last page | 458 |
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