Search Results - Phosphates

Geology of phosphate deposits of northern peninsular Florida by Espenshade, Gilbert H., 1912-1993

Contents: “…Abstract -- Introduction -- Previous investigation -- Present investigation and scope of work -- Acknowledgments -- General geology -- Stratigraphy and geologic history -- Structure -- Geomorphology -- Nomenclature of phosphate minerals and deposits -- Sedimentary phosphatic materials -- Supergene phosphatic materials -- Hawthorn formation and younger beds -- Miocene series -- Hawthorn formation -- Stratigraphy -- Lithology -- Dolomite and phosphatic dolomite -- Limestone -- Clay -- Phosphorite -- Distribution and thickness -- Fauna and age -- Beds of late Miocene age -- Miocene or Pliocene series -- Clayey sand -- Pilocene to Recent -- Sand -- Weathering alternations -- Supergene alteration of phosphorite -- Possible stratigraphic implications -- Hard-rock phosphate deposits -- Geology -- Stratigraphy and lithology -- Age of the phosphatic sands and clays -- Origin -- Economic geology -- History of phosphate mining -- Phosphorus and uranium in the Hawthorn formation -- Phosphorus and uranium in the hard-rock phosphate deposits -- Resources -- Hawthorn formation -- Hard-rock phosphate district -- Recommendations for prospecting -- Hawthorn formation -- Hard-rock phosphate district.…”

Geology of the Stewart Flat quadrangle, Caribou County, Idaho by Montgomery, Kathleen M., 1932-, Cheney, T. M. (Thomas M.), 1926-

Contents: “…Abstract -- Introduction -- Stratigraphy -- Mississippian System -- Monroe Canyon Limestone -- Pennsylvanian and Permian Systems -- Wells Formation -- Permian System -- Park City Formation -- Phosphoria Formation -- Triassic System -- Dinwoody and Woodside Formations -- Thaynes Formation -- Quaternary System -- Structure -- Resources -- Phosphate deposits -- Byproducts of phosphate production -- Analyses of samples from the Meade Peak Phosphatic Shale Member of the Phosphoria Formation.…”