UNIVERSITY OF CALIFORNIA 



Bulletin of the Department of Geology 



Vol.2, No. 12, pp. 349-450, Pis. 10 17, Map. ANDREW C LAWSON, Editor 



THE BERKELEY HILLS 

 A DETAIL OF COAST RANGE GEOLOGY 



BY 



Andrew C. Lawson and Charles Palache. 

 CONTENTS. 



Introduction 351 



General Section of the Berkeley Hills 353 



Franciscan Series 353 



Sedimentary Rocks 353 



Eruptive and Intrusive Rocks 356 



Metamorphic Schists 357 



Shasta-Chico Series 357 



Knoxville Shales 357 



Unconformable Relation to Franciscan 358 



Chico Sandstones 359 



Conglomerate, Aporhyolite, and Serpentine 361 



Monterey Series 363 



Unconformity 363 



Cherts and Shales 364 



Sandstones and Limestones 365 



Monterey Only Partially Represented 367 



Structural Features 368 



Thickness 369 



Geomorphic Features.. 369 



Orindan Formation.. 371 



Stratigraphic Composition 371 



Unconformity at Base 371 



Thickness 373 



Intrusives 373 



Volcanics above Orindan 374 



Berkeleyan Series, Upper and Lower 375 



Amygdaloidal Andesite 376 



Tuffs and Basalt 377 



Rhyolite Tuff. 378 



