Calera limestone member of Cahil sandstone. The limestone contains layers of dark chert. San Mateo County, California. 1913.
Dates
Date Taken
1913
Summary
Calera limestone member of Cahil sandstone, Franciscan Group, Calera Point, San Mateo quadrangle; the limestone contains layers of dark chert. San Mateo County, California. 1913. Published as plate 3 in U.S. Geological Survey. Folio 193. 1914.
Summary
Calera limestone member of Cahil sandstone, Franciscan Group, Calera Point, San Mateo quadrangle; the limestone contains layers of dark chert. San Mateo County, California. 1913. Published as plate 3 in U.S. Geological Survey. Folio 193. 1914.
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