• Geology
  • Published 1978

Bergmounds along the western margin of the channeled scablands, south--central Washington

@inproceedings{Fecht1978BergmoundsAT,
  title={Bergmounds along the western margin of the channeled scablands, south--central Washington},
  author={Karl R. Fecht and A. M. Tallman},
  year={1978}
}
Distinctive mounds of till occur 100 to 240 meters above the present Columbia River along the western margins of the Pasco and Quincy basins. These mounds were formed by melting of grounded icebergs after inundation of the basins by the catastrophic glacial Lake Missoula flood(s). Most of the bergmounds are circular in plan and range in size from small clusters of erratics to mounds 50 meters in diameter and up to 4 meters high. The detritus is composed predominantly of granite, slate… CONTINUE READING