SUMMARY
- Our data improve existing estimates of fan surface age
and displacement rates at Fish Springs because we dated the surfaces of
the fans directly.
- Together with the age of the cinder cone established
by Martel et al. (1987), we present the longest and most detailed chronology
of faulting rates along the Owens Valley fault zone.
- We calculate an average rate of vertical displacement
along the Fish Springs fault, 0.24 ± 0.03 mm/yr.
- 10-Be and 26-Al estimates of fan age correlate well with
relative ages established for the same surfaces, and support the relation
of fan deposition with glacial episodes.
- Data suggest that soil development rates on Owens Valley
debris fans are lower than rates for soils developed in other climates
and on different parent materials.