The following report is based mainly on information obtained from lithologic and gamma-ray logs of drill holes in the Lakeland Highlands area and Clark James-South Ridgewood.
The following documents are three maps on the stratigraphy between Hernando and Polk Counties, Florida. These maps are in relation to document USGS Bulletin 1074, "Stratigraphy of the Area Between Hernando and Hardee Counties, Florida".
Report discussing studies of millisite and pseudowavellite, which were "locally abundant in the leached zone of the highly phosphatic Bone Valley formation in west-central Florida." Studies include optical determinations and x-ray studies.
Report discussing a geological examination of an area in Polk County, Florida with leached zones containing uranium. The objective of the study was to determine the advisability of making plans for stockpiling the leached zone material in this area.
From abstract: Investigations of the land-pebble phosphate deposits of Florida by the Geological Survey began in November 1947. This report presents the computation of reserves of phosphate rock in the northern part of the district.
The following report presents the results of part of a geologic study of the phosphate deposits in central Florida. The purpose of the investigative research done in Florida is to determine the geologic history of the phosphate deposits and associated sediments, in order that the distribution of phosphate and uranium will be more clearly understood.
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