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Geologic Atlas of California - Santa Ana Sheet



Geologic Atlas of California - Santa Ana Sheet


California Geological Survey, Geologic Atlas of California Map No. 019, 1:250,000 scale

Compilation by: Thomas H. Rogers

1965

DESCRIPTION OF MAP UNITS

Dune sand
Alluvium
Lake deposits
Glacial deposits
River terrace deposits
Pleistocene marine and marine terrace deposits
Pleistocene volcanic rocks
Qpvr-rhyolite
Qpva-andesite
Qpvb-basalt
Qpvp-pyroclastic rocks
Pleistocene nonmarine
Plio-Pleistocene nonmarine
Quaternary and/or Pliocene cinder cones
Undivided Pliocene nonmarine
Upper Pliocene marine
Middle and/or lower Pliocene nonmarine
Middle and/or lower Pliocene marine
Pliocene volcanic rocks
Pvr-rhyolite
Pva-andesite
Pvb-basalt
Pvp-pyroclastic rocks
Undivided Miocene nonmarine
Upper Miocene nonmarine
Upper Miocene marine
Middle Miocene marine
Lower Miocene marine
Miocene volcanic rocks
Mvr-rhyolite
Mva-andesite
Mvb-basalt
Mvp-pyroclastic rocks 
Oligocene nonmarine
Eocene nonmarine
Eocene marine
Paleocene marine
Tertiary nonmarine
Tertiary marine
Tertiary intrusive (hypabyssal) rocks
Tir-rhyolite
Tia-andesite
Tib-basalt
Tertiary lake deposits
Tertiary volcanic rocks
Tvr-rhyolite
Tva-andesite
Tvb-basalt
Tvp-pyroclastic rocks
Upper Cretaceous marine
Upper Jurasssic marine
Mesozoic granitic rocks 
Mesozoic basic intrusive rocks
Mesozoic ultrabasic intrusive rocks
Jurassic-Triassic metavolcanic rocks
Pre-Cretaceous metamorphic rocks (ls=limestone)
Pre-Cretaceous metasedimentary rocks
Pre-Cretaceous metavolcanic rocks
Pre-Cenozoic granitic and metamorphic rocks
Precambrian igneous and metamorphic rock complex
Undivided Precambrian metamorphic rocks
pCg=gneiss
pCs=schist
pCls=limestone and/or dolomite
Undivided Precambrian granitic rocks

Click here for the Index to Geologic Mapping in California.

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