Research by Rolfe C. Erickson
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Geology of the Franciscan Complex in the Ward Creek-Cazadero Area, Sonoma County (1975) Text (* pdf)
Map – Cazadero 1975 (color) (* pdf)
Map – Cazadero 1975 (B&W) (* pdf)
Poster – Franciscan Granite (GSA) (* pdf)
History of a metamorphosed granitoid block in a Franciscan olistostrome melange, Cazadero, California (2007) (* pdf)