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Geologic Atlas of California - Needles Sheet



Geologic Atlas of California - Needles Sheet


California Geological Survey, Geologic Atlas of California Map No. 010, 1:250,000 scale

Compilation by: Charles C.Bishop

1963

DESCRIPTION OF MAP UNITS

Dune sand
Alluvium
Recent volcanic rocks
Qrvr-rhyolite
Qrva-andesite
Qrvb-basalt
Qrvp-pyroclastic rocks
Salt deposits
Lake deposits
Pleistocene volcanic rocks
Qpvr-rhyolite
Qpva-andesite
Qpvb-basalt
Qpvp-pyroclastic rocks
Pleistocene nonmarine
Plio-Pleistocene nonmarine
Quaternary and/or Pliocene cinder cones
Miocene volcanic rocks
Mvr-rhyolite
Mva-andesite
Mvb-basalt
Mvp-pyroclastic rocks 
Tertiary nonmarine
Tertiary intrusive (hypabyssal) rocks
Tir-rhyolite
Tia-andesite
Tib-basalt
Tertiary volcanic rocks
Tvr-rhyolite
Tva-andesite
Tvb-basalt
Tvp-pyroclastic rocks
Triassic marine
Mesozoic granitic rocks 
Mesozoic basic intrusive rocks
Jurassic-Triassic metavolcanic rocks
Pre-Cretaceous metamorphic rocks (ls=limestone)
Pre-Cretaceous metasedimentary rocks
Paleozoic marine (ls=limestone)
Pre-Cretaceous metavolcanic rocks
Pre-Cenozoic granitic and metamorphic rocks
Permian marine
Pennsylvanian marine
Mississippian marine
Devonian marine
Cambrian marine
Precambrian igneous and metamorphic rock complex
Undivided Precambrian metamorphic rocks
pCg=gneiss
pCs=schist
pCls=limestone and/or dolomite
Undivided Precambrian granitic rocks
Earlier Precambrian metamorphic rocks

Click here for the Index to Geologic Mapping in California.

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