Fault-bounded basins containing several thousand feet of sedimentary and volcanic rock of Cenozoic age are indicated by gravity lows in the Oakley area and in Upper-Raft River and Raft River Valleys. A gravity low and a magnetic high in the north end of Raft River Valley extends over the Cotterel Mountains and into Marsh Creek valley. These anomalies may reflect a Tertiary caldera. A gravity high and a magnetic high in the Raft River Valley south of Malta suggests a buried intrusive that may be the source of heat for the thermal waters in that area.
Additional Publication Details
USGS Numbered Series
Regional gravity and magnetic surveys in the Albion Mountains area of southern Idaho