Geoscience Reference
In-Depth Information
Oregon
Idaho
Lake
Lahontan
Present day lakes & playas
Pleistocene lakes
Present day rivers
Pleistocene rivers
Catchment boundary
State boundary
Pyramid Lake
Reno
Lake Tahoe
0
km
150
0
miles
100
N
Mono Lake
Nevada
Abobe Lake
Long Valley Lake
Owens
Lake
Panamint Lake
Lake
Manly
Las Vegas
?
?
Pahrump
Lake
Searles
Lake
Arizona
California
Tecopa
Lake
China
Lake
Silver Lake
SODA
MTS
Lake Mojave
Coyote
Lake
Soda Lake
Harper
Lake
Lake Mannix
Ri
Troy Lake
Pacific
Ocean
Los Angeles
Case Fig. 5.2A
Pleistocene lakes of the American South-west (Adapted from Jannik et al. 1991; Harvey et al. 1999.)
Pleistocene to Holocene climatic transition. The alluvial fan systems of Lahontan, sourced from
the Stillwater Range underwent minimal slope erosion and fan sedimentation during that time
frame. In contrast the fan systems of the Mojave, sourced from the Transverse Ranges of the
San Bernadino Mountains, were far more active over that same period, first dominated by debris
flows on the fan surfaces and then by ephemeral streamflow causing fanhead trenching and
