Published: U.S. G.P.O., 1963
Description:
v, 115 pages : illustrations, maps (some color) ; 24 cm.
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.…”
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Government Document
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