Geologic map and structure sections of the Laurel 7-1/2ʹ quadrangle, Santa Clara and Santa Cruz Counties, California

Abstract

ALLUVIUM (HOLOCENE AND UPPER PLEISTOCENE) Unconsolidated gravel, sand, and silt deposited by streams.LANDSLIDE DEPOSITS (HOLOCENE AND PLEISTOCENE) Debris consisting of a mixture of colluvium and intact masses of rock, displaced down slope by gravity.A large landslide composed of intact blocks of Cretaceous through Eocene rocks is present northeast of the San Andreas fault near northeast corner of Laurel Quadrangle, extending eastward into adjacent Loma Prieta Quadrangle.This landslide block has moved southwestward, locally over-riding the San Andreas fault.Additional landslide information can be found on the map by Cooper-Clark and Associates (1975) and in Wieczorek and others