BackgroundThe Blackfoot Lava Field (BLF) is located in southeastern Idaho, at the margin of the Eastern Snake River Plain (ESRP). It is located within a graben of the Northern Basin and Range Province. Though it is not actually part of the ESRP, it is similar in its mineralogy, geochemistry, and bimodal volcanism (McCurry et al., 2011). However, shield volcanoes are less common than in the ESRP and more explosive volcanism appears to have been prevalent. Ages of BVF lavas are scarce, but they are believed to be similar in age to Gem Valley lavas (27.5 +/- 10 ka) (McCurry et al., 2011). In addition to the lava flows, there are three rhyolite domes, ranging in age from 58 +/- 7 ka (Heumann, 2004) to about 1.5 Ma (Luedke and Smith, 1983). Blackfoot Lava Field may be a potential geothermal resource (McCurry et al., 2011).
Source: Smithsonian / GVP volcano information
See also: Sentinel hub | Landsat 8