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February 24, 1984

Correlation of the middle eocene Kellogg Shale of northern California Correlation of the middle eocene Kellogg Shale of northern California

The Kellogg Shale of northern California has traditionally been considered to be late Eocene in age on the basis of benthic foraminifer, radiolarian, and diatom correlations. The 30-m-thick Kellogg section exposed west of Byron, California, however, contains middle Eocene planktonic foraminifers (Zone P12), coccoliths (Subzones CP13c and CP14a), silicoflagellates (Dictyocha hexacantha...

Authors

John A. Barron, David Bukry, Richard Z. Poore

Volcano Hazards Program, Volcano Science Center, St. Petersburg Coastal and Marine Science Center