{| Standard _ 
California Section 
Alluyium 
ie 
San Pedro 
' |Unconf.— 
Nes |_Unconf. 
Merced 
San Diego’ 
| San Pablo 
~ |—Unconformity— 
Santa Margarita 
San Lorenzo 
“Unconformity(?)— 
| Unc 
| Chico 
eal 
Table of Tentative Correlations of the Tertiary Formations of California, Oregon, and Washington 
Ralph Arnold—January, 1909 
Central Western. Eastern Western Mount Diablo Santa Cruz San Luis + e 
Washington Washington Oregon Oregon Region Mountains Folio Senta Mania Sealine ae nes auuneles San Diego 
a F : a = ounty Region 
Alluyium Alluvium Alluvium Alluvium Alluvium Alluvium Alluvium * 5 —| 
A Alluvium Alluyium Alluyium Alluvium Alluyium 
Vashon ee 
Marine Sands Marine Sands Marine Sand Marine Sands Marine Sand i i 
Pe Be ncontormitves binant ap a yeaatoenity = ea ao Stream Deposits —Unconformity— San Pedro San Pedro 
Admiralty < —Unconformity— 
—Unconformity— 
‘1 Beds at 
“Siestan”? Merced Deadman ITs, 
Rattlesnake { Santa Clara 8 
—Unconformity— a 2 
8 3 
g a 
¢ “Orindan” Beds at 
Third St. Tunnel San Diego 
iG ° and ‘Temescal ° 6 
z = = Canyon y 
© 5 5 o 
—Unconformity— —Unconformity— a Fa —Unconformity— Fa La 
Empire San Pablo Etchegoin Bessa 
Hada (Ione ?) 1 —Unconformity— Be cont ormnitves Gorriz0\ Creek 
Clallam Bay, Jacolit 
Ellensburg ? fe acolitos 
Quillayute River, Beds in ; Pismo 
Sooke beds Contra Costa County Santa Margarita Santa Margarita Santa Margarita 
—Unconformity— —Unconformity— —Unconformity— —Unconformity— — ity— = ity— 
Yakima Basalt —Unconformity— Columbia River Basalt » 2 v WATTS) Unconformity 
Rae Monterey Monterey © Monterey Monterey Modelo 
‘Beds a 
Port Blakeley, “Astoria” sandstone —Unconformity— —Unconformity— 
' a 
Fuca Strait 2 
Pc} Vaqueros Vaqueros Vaqueros Vaqueros Vaqueros Vaqueros o 
He —Unconformity— —Unconformity— g 
2 7) 
a —Unconformity— M4 
2 | Beds at Porter, ~ p 
& Bean Point, { Astoria’ shale San Lorenzo Sespe Sespe Sespe 
Fuca Strait, ete. John Day Oakland (?) (Oligocene ?) (Oligocene ?) (Oligocene ?) 
—Unconformity— 
—Unconformity— —Unconformity— 
Tyee 
Beds at ; Tejon Tejon 
Manastash ‘Little Falls ¢ Coaledo Tejon 
Gana (freshwater) & 5 
neonformity— is) Si Topatopa Martins 
“= or Tejon 
Tite Falls “Pulaski” F 
(marine) Umpqua Martinez Limestone inclusions 
; in diabase 
Beds at 
Port Crescent 
—Unconformity— —Unconformity— —Unconformity— 
Chico Chico Chico Chico Chico Chico 
Chico 
