Description: This map from the Florida Geological Survey Bulletin number 33, shows the distribution of significant geologic deposits of economic interest. These deposits include hard-rock phosphates, argillaceous quartz sands, limestone, dolomite, and montmorillinite clays. Source: Robert O. Vernon, Geology of Citrus and Levy Counties, Florida (Tallahassee, FL: The Florida Geological Survey, 1951) 218 Map Credit: Courtesy the private collection of Roy Winkelman |
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