Alluvium, lake, playa, and terrace deposits; unconsolidated and semi-consolidated. Mostly nonmarine, but includes marine deposits near the coast.
Pliocene and/or Pleistocene sandstone, shale, and gravel deposits; in part Miocene.
Upper Cretaceous sandstone, shale, and conglomerate
Lower Cretaceous sandstone, shale, and conglomerate
Shale, sandstone, conglomerate, and minor limestone; in part Oligocene and Paleocene.
Shale, sandstone, minor conglomerate, chert, slate, limestone; minor pyroclastic rocks
Tertiary pyroclastic and volcanic mudflow deposits.
Ultramafic rocks, mostly serpentine. Minor peridotite, gabbro, and diabase. Chiefly Mesozoic unit 3
Blueschist and semi-schist of Franciscan complex
Franciscan complex: Cretaceous and Jurassic sandstone with smaller amounts of shale, chert, limestone, and conglomerate. Includes Franciscan melange, except where separated--see KJfm.