UNIVERSITY OF CALIFORNIA. 

 Bulletin of the Department of Geology. 

 Vol. 1, No. 4, pp. 115 li.ll, Pis. 8-9. ANDREW C. LAWSON, Editor. 



THE 



POST - PLIOCENE DI ASTRO PH ISM 



OF THE 



COAST OF SOUTHERN CALIFORNIA. 



BY 



Andrew C. Lavvson. 

 CONTENTS. 



PAGE. 



Introduction ii6 



The San Diego Mesa 117 



Physiography 117 



Structure 118 



Age 119 



Uplift 119 



Stream Terraces 120 



Marine Terraces 121 



San Pedro Hill 122 



Physiography 122 



Geological Structure 124 



Evidence of Uplift 124 



The Record of Geological Events 127 



San Clemente Island 12S 



Physiography 128 



The Rocks of San Clemente 133 



uplift ; 134 



Santa Catalina Island 135 



Compared with San Pedro Hill and San Clemente 135 



Absence of Elevated Strands 136 



More Ancient Stream Topography 137 



Evidence of Subsidence ; 138 



Carmelo Bay , , 139 



The Santa Cruz Terraces 140 



