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BASEMAPS
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Temperature
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WEATHER
Tertiary-Cretaceous Coastal Belt Rocks (CATK;0)
Geologic Formation
in
CA
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Lithology
Mudstone
Sandstone
Conglomerate
Other
(19,073 mi²)
Geologic Age
Late Cretaceous – Pliocene (100.5 Ma – 2.58 Ma ago)
Geologic Unit Label
TK
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.
—
USGS
Taxonomy
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Geologic Formation
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