1. Isopach map showing Quaternary deposits in the Gulf of Santa Catalina area, California Yale Public content 1993. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. California, Santa Catalina, Gulf of, and Santa Catalina, Gulf of (Calif.). Quaternary.