Regional Geology of Eastern Idaho and Western Wyoming
Chapter 12: An overview of basaltic volcanism of the eastern Snake River Plain, Idaho
Published:January 01, 1992
Mel A. Kuntz, Harry R. Covington, Linda J. Schorr, 1992. "Chapter 12: An overview of basaltic volcanism of the eastern Snake River Plain, Idaho", Regional Geology of Eastern Idaho and Western Wyoming, Paul Karl Link, Mel A. Kuntz, Lucian B. Piatt
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More than 95% of the eastern Snake River Plain (ESRP) is covered by basaltic lava flows erupted in the Brunhes Normal-Polarity Chron; thus they are younger than 730 ka. About 13% of the area of the ESRP is covered by lava fields of latest Pleistocene and Holocene age <15 ka. More than 90% of the basalt volume of the ESRP is included in coalesced shield and lava-cone volcanoes made up dominantly of tube- and surface-fed pahoehoe flows. Deposits of fissure-type, tephra-cone, and hydrovolcanic eruptions constitute a minor part of the basalt volume of the ESRP.
Eight latest Pleistocene and Holocene...