borings collected; samples described by Brian Atwater and others; diatom species listed.
Info derived
borings collected; proposed bridge bay crossings; C-14, organism/fossil identification
Comments
Mary McGann inherited samples and documents from Brian Atwater (USGS). Some samples have been processed by Doris Sloan (former USGS).
Borehole location map in Doris Sloan's dissertation - Ecostratigraphic study of Sangamon Deposits Beneath Central San Francisco Bay, 1981, UC Berkeley (abstract, table of contents, and pg 14, 15, 231,232 scanned; pdf on FAD);
Some metadata from B-1-55-SF, BAY_TOLL_XING_2001 also present; green logbook containing map of sample locations (scanned pdf on FAD). C14 dates from C2011, C-101 (Southern crossing) and C-4019, C-2001 (1955), sample descriptions and microfossil IDs from C-5002 (1959; San Mateo Hayward Crossing), C-5007 (1963; San Mateo Hayward Crossing) sample description from 1970-1971 Dumbarton crossing, sample descriptions from Greco Island, 1974, sample description from 7-20-1975 Rodeo Lagoon, and organisms/fossil reports from W.O. Addicott, Fred Nichols, P.C. Valentine, and John A. Barron.
bottled samples from 6/8/1948 to 6/9/1948
