Franciscan complex: Cretaceous and Jurassic sandstone with smaller amounts of shale, chert, limestone, and conglomerate. Includes Franciscan melange, except where separated--see KJfm.
Melange of fragmented and sheared Franciscan complex rocks.
Alluvium, lake, playa, and terrace deposits; unconsolidated and semi-consolidated. Mostly nonmarine, but includes marine deposits near the coast.
Older alluvium, lake, playa, and terrace deposits.
Upper Cretaceous sandstone, shale, and conglomerate
Undivided Mesozoic volcanic and metavolcanic rocks. Andesite and rhyolite flow rocks, greenstone, volcanic breccia and other pyroclastic rocks; in part strongly metamorphosed. Includes volcanic rocks of Franciscan Complex: basaltic pillow lava, diabase, greenstone, and minor pyroclastic rocks.
Sandstone, shale, siltstone, conglomerate and breccia; in part Pliocene and Oligocene.
Pliocene and/or Pleistocene sandstone, shale, and gravel deposits; in part Miocene.
Undivided Cretaceous sandstone, shale, and conglomerate; minor nonmarine rocks in Peninsular Ranges
Ultramafic rocks, mostly serpentine. Minor peridotite, gabbro, and diabase. Chiefly Mesozoic unit 3
Shale, sandstone, conglomerate, and minor limestone; in part Oligocene and Paleocene.
Sandstone, siltstone, shale, and conglomerate; in part Pleistocene and Miocene.
Sandstone, shale, and conglomerate; in part Miocene and Eocene.
Tertiary volcanic flow rocks; minor pyroclastic deposits.
Tertiary volcanic flow rocks; minor pyroclastic deposits.
Selected large landslides, such as Blackhawk slide on north side of San Gabriel Mountains; early to late Quaternary.
Tertiary volcanic flow rocks; minor pyroclastic deposits.
Tertiary intrusive rocks; mostly shallow (hypabyssal) plugs and dikes. Includes some Mesozoic rocks.
Sandstone, shale, and conglomerate