OF THE WEST COAST 



301 



and that usually where the San Lorenzo heds are ahsent, there the Tejon 

 also is missing. This apparently closer stratigTaphic relationship of the 

 San Lorenzo to the Tejon than to the Monterey is borne out by the fact 



Figure 1. — Outline of Sea in San Lorenzo Time (Oligocene) 



that as 3'et no record of large crustal movements, as indicated by a marked 

 difference in dip and strike, has been reported as coming between the 

 Tejon and the San Lorenzo. 



COMPARISON OF DISTRIBUTIONS OF OLIGOCENE AND LOAVER MIOCENE 



A comparison of the area occupied by tlie Lower Miocene Sea with that 

 of the Oligocene Sea shows a remarkable difference. The axis of the geo- 



