Geologic units of California

C: Carboniferous marine rocks, unit 1 (Western Mojave Desert) (Late Proterozoic to Pennsylvanian)
Shale, sandstone, conglomerate, limestone, dolomite, chert, hornfels, marble, quartzite; in part pyroclastic rocks

C: Carboniferous marine rocks, unit 2 (SE California Carbonate Assemblage) (Mississippian to Early Permian)
Shale, sandstone, conglomerate, limestone, dolomite, chert, hornfels, marble, quartzite; in part pyroclastic rocks

C: Carboniferous marine rocks, unit 3 (SE California Clastic Assemblage) (Late Devonian to Early Permian)
Shale, sandstone, conglomerate, limestone, dolomite, chert, hornfels, marble, quartzite; in part pyroclastic rocks

C: Carboniferous marine rocks, unit 4 (Eastern Klamath Mountains) (Mississippian to Early Permian)

C: Carboniferous marine rocks, unit 5 (Northwestern Sierra Nevada) (Paleozoic or Mesozoic)

C: Carboniferous marine rocks, unit 6 (Northeastern Sierra Nevada) (Mississippian to Early Permian)

C: Carboniferous marine rocks, unit 7 (Bishop) (Mississippian to Early Permian)

C: Carboniferous marine rocks, unit 8 (Mono Lake) (Ordovician to Devonian)

Ca: Cambrian marine rocks (Late Proterozoic to Middle Devonian)
Sandstone, shale, limestone, dolomite, chert, quartzite, and phyllite; includes some rocks that are possibly Precambrian

D: Devonian marine rocks, unit 1 (Death Valley) (Middle to Late Devonian)
Limestone and dolomite, sandstone and shale; in part tuffaceous

D: Devonian marine rocks, unit 2 (Eastern Klamath Mountains) (Devonian)
Limestone and dolomite, sandstone and shale; in part tuffaceous

E-Ep: Eocene and Paleocene marine rocks, undivided (Paleocene to middle Eocene)

E: Eocene marine rocks (Paleocene to Oligocene)
Shale, sandstone, conglomerate, and minor limestone; in part Oligocene and Paleocene.

Ec: Eocene nonmarine rocks, unit 1 (Northern and Central California) (Eocene)
Sandstone, shale, and conglomerate.

Ec: Eocene nonmarine rocks, unit 2 (Southern California) (middle to late Eocene)
Sandstone, shale, and conglomerate.

J: Jurassic marine rocks, unit 1 (Western Sierra Nevada and Western Klamath Mountains) (Triassic to Late Jurassic)
Shale, sandstone, minor conglomerate, chert, slate, limestone; minor pyroclastic rocks

J: Jurassic marine rocks, unit 2 (Coast Ranges) (Late Jurassic to Early Cretaceous)
Shale, sandstone, minor conglomerate, chert, slate, limestone; minor pyroclastic rocks

J: Jurassic marine rocks, unit 3 (Mojave Desert) (Jurassic)
Shale, sandstone, minor conglomerate, chert, slate, limestone; minor pyroclastic rocks

J: Jurassic marine rocks, unit 4 (Peninsular Ranges and Western Transverse Ranges) (Paleozoic(?) to Late Jurassic)

J: Jurassic marine rocks, unit 5 (Northern Sierra Nevada and Eastern Klamath Mountains) (Devonian to Late Jurassic)

J: Jurassic marine rocks, unit 6 (Mono Lake) (Ordovician(?) to Triassic(?))

J?: Jurassic marine rocks (?), (Lake Beryessa) (Jurassic(?))

K: Cretaceous marine rocks (in part nonmarine), unit 1 (Coast Ranges) (Early to Late Cretaceous)
Undivided Cretaceous sandstone, shale, and conglomerate; minor nonmarine rocks in Peninsular Ranges

K: Cretaceous marine rocks (in part nonmarine), unit 2 (West Walker River) (Triassic(?) and/or Jurassic(?))
Undivided Cretaceous sandstone, shale, and conglomerate; minor nonmarine rocks in Peninsular Ranges

K: Cretaceous marine rocks (in part nonmarine), unit 3 (Mescal Range) (Middle Jurassic to late Early Cretaceous)
Undivided Cretaceous sandstone, shale, and conglomerate; minor nonmarine rocks in Peninsular Ranges

K?: Cretaceous marine rocks (in part nonmarine) (?), unit 1 (Blythe) (Middle Jurassic(?) to Late Cretaceous)
Undivided Cretaceous sandstone, shale, and conglomerate; minor nonmarine rocks in Peninsular Ranges (?)

K?: Cretaceous marine rocks (in part nonmarine) (?), unit 2 (Jacumba) (Late Cretaceous(?) to Miocene(?))
Undivided Cretaceous sandstone, shale, and conglomerate; minor nonmarine rocks in Peninsular Ranges (?)

KJf: Franciscan Complex, unit 1 (Coast Ranges) (Jurassic to Cretaceous)
Franciscan complex: Cretaceous and Jurassic sandstone with smaller amounts of shale, chert, limestone, and conglomerate. Includes Franciscan melange, except where separated--see KJfm.

KJf: Franciscan Complex, unit 2 (Southern California) (late Early to early Late Cretaceous)
Franciscan complex: Cretaceous and Jurassic sandstone with smaller amounts of shale, chert, limestone, and conglomerate. Includes Franciscan melange, except where separated--see KJfm.

KJfm: Franciscan melange (Jurassic to Cretaceous)
Melange of fragmented and sheared Franciscan complex rocks.

KJfs: Franciscan schist (Early Cretaceous)
Blueschist and semi-schist of Franciscan complex

Kl: Lower Cretaceous marine rocks (Early Cretaceous)
Lower Cretaceous sandstone, shale, and conglomerate

Kl?: Lower Cretaceous marine rocks (?) (Cretaceous (?))
Lower Cretaceous sandstone, shale, and conglomerate (?)

Ku-Ep: Upper Cretaceous and Paleocene marine rocks, undivided (Late Cretaceous to Paleocene)
Sandstone, shale, and conglomerate

Ku: Upper Cretaceous marine rocks, unit 1 (Upper Great Valley Sequence) (Late Cretaceous)
Upper Cretaceous sandstone, shale, and conglomerate

Ku: Upper Cretaceous marine rocks, unit 2 (Klamath Mountains) (late Early to Late Cretaceous)
Upper Cretaceous sandstone, shale, and conglomerate

Ku?: Upper Cretaceous marine rocks (?) (Cretaceous)
Upper Cretaceous sandstone, shale, and conglomerate (?)

M+KJfs: Miocene marine rocks and Franciscan schist (Cretaceous(?) to Miocene)

M: Miocene marine rocks (Oligocene to Pliocene)
Sandstone, shale, siltstone, conglomerate and breccia; in part Pliocene and Oligocene.

M?: Miocene marine rocks (?) (Miocene(?) or Pliocene(?))

Mc: Miocene nonmarine rocks (Oligocene to Pleistocene)
Sandstone, shale, conglomerate, and fanglomerate; in part Pliocene and Oligocene.

Mzv: Mesozoic volcanic rocks, unit 1 (Coast Ranges) (Jurassic to Cretaceous)
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

Mzv: Mesozoic volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains) (Jurassic)
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

Mzv: Mesozoic volcanic rocks, unit 3 (Mojave Desert, Death Valley area, and Eastern Sierra Nevada) (Triassic to Cretaceous)
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

Mzv: Mesozoic volcanic rocks, unit 4 (Peninsular Ranges) (Late Jurassic to Early Cretaceous)

Mzv: Mesozoic volcanic rocks, unit 5 (Northern Sierra Nevada and Eastern Klamath Mountains) (Late Permian(?) to Jurassic)

O: Oligocene marine rocks (Eocene to Miocene)
Sandstone, shale, and conglomerate; in part Miocene and Eocene.

Oc: Oligocene nonmarine rocks, unit 1 (Northern California) (Oligocene to Miocene)
Sandstone, shale, and conglomerate; in part Miocene and Eocene.

Oc?: Oigocene nonmarine rocks (?), unit 1 (Klamath Mountains) (Oligocene(?) to Pleistocene(?))

Oc: Oligocene nonmarine rocks, unit 2 (Central and Southern California) (middle Eocene to early Miocene)
Sandstone, shale, and conglomerate; in part Miocene and Eocene.

Oc?: Oligocene nonmarine rocks (?), unit 2 (Southeastern California) (Cretaceous(?) to Oligocene(?))

Pm: Permian marine sedimentary rocks, unit 1 (Death Valley and Mojave Desert) (Pennsylvanian to Triassic)
Shale, conglomerate, limestone and dolomite, sandstone, slate, hornfels, quartzite; minor pyroclastic rocks

Pm: Permian marine sedimentary rocks, unit 2 (Northwestern Sierra Nevada) (Paleozoic or Mesozoic)
Shale, conglomerate, limestone and dolomite, sandstone, slate, hornfels, quartzite; minor pyroclastic rocks

Pm: Permian marine sedimentary rocks, unit 3 (Northeastern Sierra Nevada) (Early to Late Permian)
Shale, conglomerate, limestone and dolomite, sandstone, slate, hornfels, quartzite; minor pyroclastic rocks

Pm: Permian marine sedimentary rocks, unit 4 (Eastern Klamath Mountains) (Early Permian)

Ep: Paleocene marine rocks, unit 1 (Central and Southern California) (Paleocene)
Sandstone, shale, and conglomerate; mostly well consolidated

Ep: Paleocene marine rocks, unit 2 (Northern California) (Paleocene to late Eocene)
Sandstone, shale, and conglomerate; mostly well consolidated

Ep: Paleocene marine rocks, unit 3 (La Panza Range) (Late Cretaceous(?) to Eocene(?))
Sandstone, shale, and conglomerate; mostly well consolidated

P: Pliocene marine rocks (Miocene to Pleistocene)
Sandstone, siltstone, shale, and conglomerate; in part Pleistocene and Miocene.

Pz: Paleozoic marine rocks, undivided, unit 1 (Mojave Desert and Death Valley area) (Late Proterozoic to Jurassic)
Undivided Paleozoic metasedimentary rocks. Includes slate, sandstone, shale, chert, conglomerate, limestone, dolomite, marble, phyllite, schist, hornfels, and quartzite

Pz: Paleozoic marine rocks, undivided, unit 2 (Northern Mojave Desert and Southeastern Sierra Nevada) (Cambrian to Jurassic)
Undivided Paleozoic metasedimentary rocks. Includes slate, sandstone, shale, chert, conglomerate, limestone, dolomite, marble, phyllite, schist, hornfels, and quartzite

Pz: Paleozoic marine rocks, undivided, unit 3 (Eastern Sierra Nevada) (Late Proterozoic(?) to Mesozoic(?))
Undivided Paleozoic metasedimentary rocks. Includes slate, sandstone, shale, chert, conglomerate, limestone, dolomite, marble, phyllite, schist, hornfels, and quartzite

Pz: Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada) (Ordovician to Triassic)

Pz: Paleozoic marine rocks, undivided, unit 5 (Northeastern Sierra Nevada) (Ordovician to Jurassic)

Pz: Paleozoic marine rocks, undivided, unit 6 (Northwestern Sierra Nevada) (Permian(?) to Jurassic(?))

Pz: Paleozoic marine rocks, undivided, unit 7 (Southeastern Klamath Mountains) (Devonian(?))

Pz: Paleozoic marine rocks, undivided, unit 8 (Northeastern Klamath Mountains) (Ordovician(?) to Devonian(?))

Pz: Paleozoic marine rocks, undivided, unit 9 (Western Klamath Mountains) (Devonian to Jurassic)

Pzv: Paleozoic metavolcanic rocks, unit 1 (Eastern Klamath Mountains) (Devonian and Permian)
Undivided Paleozoic metavolcanic rocks. Mostly flows, breccia and tuff, including greenstone, diabase, and pillow lavas; minor interbedded sedimentary rocks

Pzv: Paleozoic metavolcanic rocks, unit 2 (Northeastern Sierra Nevada) (Devonian and Permian)
Undivided Paleozoic metavolcanic rocks. Mostly flows, breccia and tuff, including greenstone, diabase, and pillow lavas; minor interbedded sedimentary rocks

Pzv: Paleozoic metavolcanic rocks, unit 3 (Northwestern Sierra Nevada) (Permian to Jurassic)
Undivided Paleozoic metavolcanic rocks. Mostly flows, breccia and tuff, including greenstone, diabase, and pillow lavas; minor interbedded sedimentary rocks

Pzv: Paleozoic metavolcanic rocks, unit 4 (Western Sierra Nevada Foothills) (Paleozoic or Mesozoic)

Pzv: Paleozoic metavolcanic rocks, unit 5 (Mono Lake) (Triassic to Jurassic)

Pzv: Paleozoic metavolcanic rocks, unit 6 (El Paso Mountains) (Devonian(?) and Permian)

Q: Quaternary alluvium and marine deposits (Pliocene to Holocene)
Alluvium, lake, playa, and terrace deposits; unconsolidated and semi-consolidated. Mostly nonmarine, but includes marine deposits near the coast.

Qrv: Recent (Holocene) volcanic flow rocks, unit 1 (Cascade Volcanic Field) (Holocene)
Recent (Holocene) volcanic flow rocks; minor pyroclastic deposits; in part Pleistocene.

Qrv: Recent (Holocene) volcanic flow rocks, unit 2 (Mono Craters) (Holocene)
Recent (Holocene) volcanic flow rocks; minor pyroclastic deposits; in part Pleistocene.

Qrv: Recent (Holocene) volcanic flow units, unit 3 (Clear Lake Volcanic Field) (Holocene)
Recent (Holocene) volcanic flow rocks; minor pyroclastic deposits; in part Pleistocene.

Qrv: Recent (Holocene) volcanic flow units, unit 4 (Mojave Desert) (Holocene)

Qrv: Recent (Holocene) volcanic flow units, unit 5 (Salton Sea) (Holocene)

Qrvp: Recent (Holocene) pyroclastic and volcanic mudflow deposits, unit 1 (Cascade Volcanic Field) (Holocene)
Recent (Holocene) pyroclastic and volcanic mudflow deposits; in part Pleistocene.

Qrvp: Recent (Holocene) pyroclastic and volcanic mudflow deposits, unit 2 (Mono Craters) (Holocene)
Recent (Holocene) pyroclastic and volcanic mudflow deposits; in part Pleistocene.

QPc: Plio-Pleistocene and Pliocene loosely consolidated deposits (Miocene to Pleistocene)
Pliocene and/or Pleistocene sandstone, shale, and gravel deposits; in part Miocene.

Qg: Quaternary glacial deposits (Pleistocene)
Glacial till and moraines. Found at high elevations mostly in the Sierra Nevada and Klamath Mountains.

Qls: Quaternary large landslide deposits (Quaternary)
Selected large landslides, such as Blackhawk slide on north side of San Gabriel Mountains; early to late Quaternary.

Qs: Quaternary sand deposits, unit 1 (coastal) (Quaternary)
Extensive marine and nonmarine sand deposits, generally near the coast or desert playas

Qs: Quaternary sand deposits, unit 2 (inland) (Quaternary)
Extensive marine and nonmarine sand deposits, generally near the coast or desert playas

Qv: Quaternary volcanic flow rocks, unit 1 (Cascade Volcanic Field) (Quaternary)
Quaternary volcanic flow rocks; minor pyroclastic deposits; in part Pliocene and Miocene.

Qv?: Quaternary volcanic flow rocks, unit 1, questionably identified (Cascade Volcanic Field) (Quaternary)
Quaternary volcanic flow rocks; minor pyroclastic deposits; in part Pliocene and Miocene.

Qv: Quaternary volcanic flow rocks, unit 2 (Long Valley Caldera) (Quaternary)
Quaternary volcanic flow rocks; minor pyroclastic deposits; in part Pliocene and Miocene.

Qv: Quaternary volcanic flow rocks, unit 3 (Clear Lake Volcanic Field) (Quaternary (0-4 Ma))

Qv: Quaternary volcanic flow rocks, unit 4 (Sutter Buttes) (Quaternary (1.5-2.5 Ma))

Qv: Quaternary volcanic flow rocks, unit 5 (Coso Volcanic Field) (Quaternary (0-4 Ma))

Qv: Quaternary volcanic flow rocks, unit 6 (Sierra Nevada) (Quaternary)

Qv: Quaternary volcanic flow rocks, unit 7 (Mojave Desert) (Quaternary)

Qv?: Quaternary volcanic flow rocks, unit 7, questionably identified (Mojave Desert) (Quaternary)

Qv: Quaternary volcanic flow rocks, unit 8 (Peninsular Ranges) (Quaternary)

Qvp: Quaternary pyroclastic and volcanic mudflow deposits, unit 1 (Cascade Volcanic Field) (Quaternary)
Quaternary pyroclastic and volcanic mudflow deposits.

Qvp?: Quaternary pyroclastic and volcanic mudflow deposits, unit 1, questionably identified (Cascade Volcanic Field) (Quaternary)
Quaternary pyroclastic and volcanic mudflow deposits.

Qvp: Quaternary pyroclastic and volcanic mudflow deposits, unit 2 (Long Valley Caldera) (Quaternary (0-1 Ma))
Quaternary pyroclastic and volcanic mudflow deposits.

Qvp: Quaternary pyroclastic and volcanic mudflow deposits, unit 3 (Sutter Buttes) (Quaternary (1.5-2.5 Ma))

Qvp: Quaternary pyroclastic and volcanic mudflow deposits, unit 4 (Sierra Nevada) (Quaternary)

Qvp: Quaternary pyroclastic and volcanic mudflow deposits, unit 5 (Coso Volcanic Field) (Quaternary)

SO: Silurian and/or Ordovician marine rocks, unit 1 (Death Valley) (Ordovician to Early Devonian)
Sandstone, shale, conglomerate, chert, slate, quartzite, hornfels, marble, dolomite, phyllite; some greenstone

SO: Silurian and/or Ordovician marine rocks, unit 2 (Bishop) (Late Cambrian(?) to Early Permian(?))
Sandstone, shale, conglomerate, chert, slate, quartzite, hornfels, marble, dolomite, phyllite; some greenstone

SO: Silurian and/or Ordovician marine rocks, unit 3 (Eastern Klamath Mountains) (Ordovician to Early Devonian)
Sandstone, shale, conglomerate, chert, slate, quartzite, hornfels, marble, dolomite, phyllite; some greenstone

SO: Silurian and/or Ordovician marine rocks, unit 4 (Northern Sierra Nevada) (Ordovician to Devonian)

TK: Tertiary-Cretaceous Coastal Belt Rocks (Late Cretaceous to Pliocene)
Sandstone, shale and minor conglomerate in coastal belt of northwestern California; included by some in Franciscan Complex. Previously considered Cretaceous, but now known to contain early Tertiary microfossils in places.

Tr: Triassic marine rocks, unit 1 (Death Valley area and Mojave Desert) (Early to Middle Triassic)

Tr: Triassic marine rocks, unit 2 (Eastern Klamath Mountains) (Middle to Late Triassic)

Tr: Triassic marine rocks, unit 3 (Lake Almanor) (Permian to Jurassic)

Tr: Triassic marine rocks, unit 4 (West Walker River) (Triassic(?))

Tr: Triassic marine rocks, unit 5 (Northern Sierra Nevada) (Middle to Late Triassic)

Tr: Triassic marine rocks, unit 6 (Southern Sierra Nevada) (Late Triassic to Early Jurassic)

Tr: Triassic marine rocks, unit 7 (Mono Lake) (Paleozoic or Mesozoic)

Tc: Tertiary nonmarine rocks, undivided (Paleocene to Pliocene)
Undivided Tertiary sandstone, shale, conglomerate, breccia, and ancient lake deposits.

Ti: Tertiary intrusive rocks (hypabyssal), unit 1 (Cascades Volcanic Field) (Tertiary)
Tertiary intrusive rocks; mostly shallow (hypabyssal) plugs and dikes. Includes some Mesozoic rocks.

Ti: Tertiary intrusive rocks (hypabyssal), unit 2 (Quien Sabe Volcanic Field) (Tertiary)
Tertiary intrusive rocks; mostly shallow (hypabyssal) plugs and dikes. Includes some Mesozoic rocks.

Ti: Tertiary intrusive rocks (hypabyssal), unit 3 (Pinnacles Volcanic Field) (Tertiary)
Tertiary intrusive rocks; mostly shallow (hypabyssal) plugs and dikes. Includes some Mesozoic rocks.

Ti: Tertiary intrusive rocks (hypabyssal), unit 4 (Tranquillon-Obispo) (Tertiary)

Ti: Tertiary intrusive rocks (hypabyssal), unit 5 (Southern California Basin) (Tertiary)

Ti: Tertiary intrusive rocks (hypabyssal), unit 6 (Southern Mojave Desert) (Tertiary)

Ti: Tertiary intrusive rocks (hypabyssal), unit 7 (Northern Mojave Desert) (Tertiary)

Ti: Tertiary intrusive rocks (hypabyssal), unit 8 (Crescent City) (Tertiary)

Ti: Tertiary intrusive rocks (hypabyssal), unit 9 (Jurassic gabbros along Hayward Fault) (Jurassic)

Tv: Tertiary volcanic flow rocks, unit 10 (Alverson) (Tertiary (14-18 Ma))
Tertiary volcanic flow rocks; minor pyroclastic deposits.

Tv: Tertiary volcanic flow rocks, unit 11 (Jacumba) (Tertiary (12-19 Ma))
Tertiary volcanic flow rocks; minor pyroclastic deposits.

Tv: Tertiary volcanic flow rocks, unit 12 (Sam Emigdio) (Tertiary (22-25 Ma))
Tertiary volcanic flow rocks; minor pyroclastic deposits.

Tv: Tertiary volcanic flow rocks, unit 13 (Plush Ranch-Vasquez-Diligencia) (Tertiary (19-23 Ma))

Tv: Tertiary volcanic flow rocks, unit 14 (Tranquillon-Obispo) (Tertiary (16-18 Ma))

Tv: Tertiary volcanic flow rocks, unit 15 (Southern Mojave Desert) (Tertiary (8-28 Ma))

Tv: Tertiary volcanic flow rocks, unit 16 (Northern Mojave Desert) (Tertiary (4-22 Ma))

Tv: Tertiary volcanic flow rocks, unit 17 (Cascade Range) (Tertiary (2-24 Ma))

Tv: Tertiary volcanic flow rocks, unit 18 (San Joaquin-Kings Canyon) (Tertiary (3-4 Ma))

Tv: Tertiary volcanic flow rocks, unit 19 (Lovejoy) (Tertiary (14-16 Ma))

Tv: Tertiary volcanic flow rocks, unit 1 (Quien Sabe-Burdell Mountain) (Tertiary (9.5-13 Ma))

Tv: Tertiary volcanic flow rocks, unit 2 (Pinnacles-Neenach) (Tertiary (22-24 Ma))

Tv: Tertiary volcanic flow rocks, unit 3 (Sonoma Volcanic Field) (Tertiary (3-7 Ma))

Tv: Tertiary volcanic flow rocks, unit 4 (Berkeley Hills) (Tertiary (8-12 Ma))

Tv: Tertiary volcanic flow rocks, unit 5 (San Luis Reservoir) (Tertiary (7.5-9.5 Ma))

Tv: Tertiary volcanic flow rocks, unit 6 (Page Mill-Mindego) (Tertiary (12-15 Ma))

Tv: Tertiary volcanic flow rocks, unit 7 (Anderson Reservoir-Coyote) (Tertiary (2.5-3.5 Ma))

Tv: Tertiary volcanic flow rocks, unit 8 (Southern California Basin) (Tertiary (8-25 Ma; most near 15))

Tv: Tertiary volcanic flow rocks, unit 9 (Caliente) (Tertiary (14-18 Ma))

Tvp: Tertiary pyroclastic and volcanic mudflow deposits, unit 1 (Sonoma Volcanic Field) (Tertiary (3-7 Ma))
Tertiary pyroclastic and volcanic mudflow deposits.

Tvp: Tertiary pyroclastic and volcanic mudflow deposits, unit 2 (Berkeley Hills) (Tertiary (8-12 Ma))
Tertiary pyroclastic and volcanic mudflow deposits.

Tvp: Tertiary pyroclastic and volcanic mudflow deposits, unit 3 (Pinnacles-Neenach) (Tertiary (22-24 Ma))
Tertiary pyroclastic and volcanic mudflow deposits.

Tvp: Tertiary pyroclastic and volcanic mudflow deposits, unit 4 (Tranquillon-Obispo) (Tertiary (16-18 Ma))

Tvp: Tertiary pyroclastic and volcanic mudflow deposits, unit 5 (Southern California Basin) (Tertiary (8-25 Ma))

Tvp: Tertiary pyroclastic and volcanic mudflow deposits, unit 6 (Jacumba) (Tertiary (12-19 Ma))

Tvp: Tertiary pyroclastic and volcanic mudflow deposits, unit 7 (Southern Mojave Desert) (Tertiary (8-28 Ma))

Tvp: Tertiary pyroclastic and volcanic mudflow deposits, unit 8 (Northern Mojave Desert) (Tertiary (4-22 Ma))

Tvp: Tertiary pyroclastic and volcanic mudflow deposits, unit 9 (Cascade Range) (Tertiary (2-24 Ma))

gb: Mesozoic gabbroic rocks, unit 1 (Trinity Ophiolite) (Ordovician)
Gabbro and dark dioritic rocks; chiefly Mesozoic

gb: Mesozoic gabbroic rocks, unit 2 (undivided) (Triassic to Cretaceous)
Gabbro and dark dioritic rocks; chiefly Mesozoic

gr-m: pre-Cenozoic granitic and metamorphic rocks undivided (Early Proterozoic to Late Cretaceous)
Granitic and metamorphic rocks, mostly gneiss and other metamorphic rocks injected by granitic rocks. Mesozoic to Precambrian.

gr: Undated granitic rocks, unit 1 (Chocolate Mountains) (Oligocene to Miocene)
Undated granitic rocks unit 1

gr: Undated granitic rocks, unit 2 (Western Klamath Mountains) (Late Triassic to Early Jurassic)
Undated granitic rocks unit 2

gr: Undated granitic rocks, unit 3 (Southern California) (Jurassic(?) to Cretaceous(?))
Undated granitic rocks unit 3

grCz: Cenozoic (Tertiary) granitic rocks, unit 1 (Death Valley) (middle to late Miocene)
Cenozoic (Tertiary) granitic rocks--quartz monzonite, quartz latite, and minor monzonite, granodiorite, and granite; found in the Kingston, Panamint, Amargosa, and Greenwater Ranges in southeastern California.

grCz: Cenozoic (Tertiary) granitic rocks, unit 2 (Catalina Island) (early Miocene)
Cenozoic (Tertiary) granitic rocks--quartz monzonite, quartz latite, and minor monzonite, granodiorite, and granite; found in the Kingston, Panamint, Amargosa, and Greenwater Ranges in southeastern California.

grCz?: Cenozoic (Tertiary) granitic rocks? (Skidoo Pluton) (Early to Late Cretaceous)
Cenozoic (Tertiary) granitic rocks--quartz monzonite, quartz latite, and minor monzonite, granodiorite, and granite; found in the Kingston, Panamint, Amargosa, and Greenwater Ranges in southeastern California(?)

grMz: Mesozoic granitic rocks, unit 1 (Salinian Block) (Early to Late Cretaceous)
Mesozoic granite, quartz monzonite, granodiorite, and quartz diorite

grMz: Mesozoic granitic rocks , unit 2 (Peninsular Ranges) (Middle Jurassic to Late Cretaceous)
Mesozoic granite, quartz monzonite, granodiorite, and quartz diorite

grMz: Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges) (Permian to Tertiary; most Mesozoic)
Mesozoic granite, quartz monzonite, granodiorite, and quartz diorite

grMz: Mesozoic granitic rocks, unit 4 (Klamath Mountains and Northern Sierra Nevada) (Devonian)

grMz: Mesozoic granitic rocks, unit 5 (Klamath Mountains) (Jurassic to early Cretaceous)

grMz: Mesozoic granitic rocks, unit 6 (Eastern Klamath Mountains) (Permian)

grMz?: Mesozoic granitic rocks (?) (Jurassic(?))
Mesozoic granite, quartz monzonite, granodiorite, and quartz diorite(?) (Northern Klamath Mountains)

grPz: Paleozoic and Permo-Triassic granitic rocks, unit 1 (Eastern Klamath Mountains) (Permian)
Paleozoic and Permo-Triassic granitic rocks in the San Gabriel and Klamath Mountains

grPz: Paleozoic and Permo-Triassic granitic rocks unit 2 (San Gabriel Mountains) (Late Triassic)
Paleozoic and Permo-Triassic granitic rocks in the San Gabriel and Klamath Mountains

grpC: Precambrian granitic rocks, unit 1 (Eastern Mojave Desert) (Early Proterozoic to Miocene)
Precambrian granite, syenite, anorthosite, and gabbroic rocks in the San Gabriel Mountains; also various Precambrian plutonic rocks elsewhere in southeastern California

grpC: Precambrian granitic rocks, unit 2, (San Gabriel Mountains Anorthosite) (Middle Proterozoic)
Precambrian granite, syenite, anorthosite, and gabbroic rocks in the San Gabriel Mountains; also various Precambrian plutonic rocks elsewhere in southeastern California

grpC: Precambrian granitic rocks, unit 3, (San Gabriel Mountains Granite) (Late Triassic)
Precambrian granite, syenite, anorthosite, and gabbroic rocks in the San Gabriel Mountains; also various Precambrian plutonic rocks elsewhere in southeastern California

grpC: Precambrian granitic rocks, unit 4, (Death Valley) (Miocene)

grpC?: Precambrian granitic rocks (?), (Death Valley) (Miocene)
Precambrian granite, syenite, anorthosite, and gabbroic rocks in the San Gabriel Mountains; also various Precambrian plutonic rocks elsewhere in southeastern California(?)

ls: Limestone of probable Paleozoic or Mesozoic age (Paleozoic to Mesozoic)
Limestone, dolomite, and marble whose age is uncertain but probably Paleozoic or Mesozoic

m: pre-Cenozoic metasedimentary and metavolcanic rocks undivided (Early Proterozoic to Cretaceous)
Undivided pre-Cenozoic metasedimentary and metavolcanic rocks of great variety. Mostly slate, quartzite, hornfels, chert, phyllite, mylonite, schist, gneiss, and minor marble.

mv: Undivided pre-Cenozoic metavolcanic rocks, unit 1 (Southwestern Sierra Nevada) (Ordovician(?) to Permian(?))
Undivided pre-Cenozoic metavolcanic rocks. Includes latite, dacite, tuff, and greenstone; commonly schistose.

mv: Undivided pre-Cenozoic metavolcanic rocks, unit 2 (undivided) (Paleozoic(?) to Mesozoic(?))
Undivided pre-Cenozoic metavolcanic rocks. Includes latite, dacite, tuff, and greenstone; commonly schistose.

pC: Precambrian rocks, undivided, unit 1 (Death Valley) (Early Proterozoic to Mesozoic)
Conglomerate, shale, sandstone, limestone, dolomite, marble, gneiss, hornfels, and quartzite; may be Paleozoic in part

pC: Precambrian rocks, undivided, unit 2 (Mojave Desert and Transverse Ranges) (Early Proterozoic to Miocene)
Conglomerate, shale, sandstone, limestone, dolomite, marble, gneiss, hornfels, and quartzite; may be Paleozoic in part

pCc: Precambrian igneous and metamorphic rock complex (Early Proterozoic to Miocene)
Complex of Precambrian igneous and metamorphic rocks. Mostly gneiss and schist intruded by igneous rocks; may be Mesozoic in part.

sch: Schist of various types and ages, unit 10 (Halloran Complex) (Precambrian)
Schists of various types; mostly Paleozoic or Mesozoic age; some Precambrian.

sch: Schist of various types and ages, unit 11 (Benton Range) (Late Proterozoic(?) to Paleozoic(?))
Schists of various types; mostly Paleozoic or Mesozoic age; some Precambrian.

sch: Schist of various types and ages, unit 1 (Peninsular Ranges) (Triassic(?))
Schists of various types; mostly Paleozoic or Mesozoic age; some Precambrian

sch: Schist of various types and ages, unit 2 (Southern and West-central California) (Late Cretaceous to Eocene)
Schists of various types; mostly Paleozoic or Mesozoic age; some Precambrian.

sch: Schist of various types and ages, unit 3 (Santa Cruz Island) (Jurassic)

sch: Schist of various types and ages, unit 4 (El Paso Mountains) (Paleozoic)

sch: Schist of various types and ages, unit 5 (Slate Range) (Mesozoic)

sch: Schist of various types and ages, unit 6 (Santa Cruz Mountains) (Paleozoic or Mesozoic)

sch: Schist of various types and ages, unit 7 (Klamath Mountains) (Devonian)

sch: Schist of various types and ages, unit 8 (Condrey Mountain) (Jurassic(?))

sch: Schist of various types and ages, unit 9 (Cargo Muchacho Mountains) (Jurassic(?))

um: Ultramafic rocks, chiefly Mesozoic, unit 1 (Trinity Ophiolite) (Ordovician)
Ultramafic rocks, mostly serpentine. Minor peridotite, gabbro, and diabase. Chiefly Mesozoic unit 1

um: Ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains) (Late Proterozoic(?) to Early Jurassic)
Ultramafic rocks, mostly serpentine. Minor peridotite, gabbro, and diabase. Chiefly Mesozoic unit 2

um: Ultramafic rocks, chiefly Mesozoic, unit 3 (Coast Ranges and Western Klamath Mountains) (Middle to Late Jurassic)
Ultramafic rocks, mostly serpentine. Minor peridotite, gabbro, and diabase. Chiefly Mesozoic unit 3

water: water (Holocene)
water

Fault
Sense of displacement unknown or undefined, location certain

Fault
Sense of displacement unknown or undefined, location approximate

Fault
Sense of displacement unknown or undefined, concealed

Fault, Thrust
Thrust fault, location certain, teeth on right from origin (angle of thrusting added to ARC-PARA1 where designated in source)

Fault, Strike-slip
Right lateral fault, location certain

Fault, Thrust
Thrust fault, location approximate, teeth on right from origin (angle of thrusting added to ARC-PARA1 where designated in source)

Fault, Strike-slip
Left lateral fault, location certain.

Sense of displacement unknown or undefined, location inferred or queried

Fault, Strike-slip
Right lateral fault, location approximate

Right lateral fault, concealed

Fault, Thrust
Thrust fault, concealed

Left lateral fault, concealed

Fault, Normal
Normal fault, location approximate, digitized with upthrown side on the right (code of 1 added to ARC-PARA1 where U/D is designated in source)

Left lateral fault, location approximate.

Fault, Normal
Normal fault, location certain, digitized with upthrown side on the right (code of 1 added to ARC-PARA1 where U/D is designated in source)

Left lateral fault, location inferred, queried

Right lateral fault, location inferred, queried.

Fault, Normal
Normal fault, concealed