Columbia River Basalt Group

GPTKB entity

Predicate	Object
gptkbp:instanceOf	flood basalt province
gptkbp:age	gptkb:Miocene
gptkbp:area	about 163,700 km2
gptkbp:eruptionEnd	about 6 million years ago
gptkbp:eruptionStart	about 17 million years ago
gptkbp:exposedBy	gptkb:Columbia_River_Gorge gptkb:Snake_River_Plain
gptkbp:formedBy	fissure eruptions
https://www.w3.org/2000/01/rdf-schema#label	Columbia River Basalt Group
gptkbp:locatedIn	gptkb:Idaho gptkb:Oregon gptkb:Pacific_Northwest gptkb:United_States gptkb:Washington
gptkbp:namedFor	gptkb:Columbia_River
gptkbp:notableFeature	gptkb:Channeled_Scablands gptkb:Columbia_Plateau gptkb:Palouse_Falls gptkb:Steptoe_Butte
gptkbp:overlies	various older rocks
gptkbp:primaryLithology	granite
gptkbp:relatedTo	gptkb:Yellowstone_hotspot
gptkbp:significance	one of the largest flood basalt provinces on Earth
gptkbp:studiedBy	geologists
gptkbp:subunit	gptkb:Grande_Ronde_Basalt gptkb:Imnaha_Basalt gptkb:Saddle_Mountains_Basalt gptkb:Wanapum_Basalt
gptkbp:thickness	up to 1.8 km
gptkbp:underlies	various younger sediments
gptkbp:volume	about 174,300 km3
gptkbp:bfsParent	gptkb:Yakima_Fold_Belt gptkb:Northwest_Plateau gptkb:Columbia_Plateau gptkb:Columbia_Plateau_Ecoregion gptkb:Large_Igneous_Province
gptkbp:bfsLayer	6