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Detailed Reference Information
Gulbrandsen 1966
Gulbrandsen, R.A. (1966). Chemical composition of phosphorites of the Phosphoria Formation. Geochimica et Cosmochimica Acta 30(8): 769-778. doi: 10.1016/0016-7037(66)90131-1.
Results are presented of chemical analyses of 60 phosphorite samples from the Phosphoria Formation. The phosphate is basically apatite, with small but significant variable substitutions (Na, Sr, U, and Th for Ca; CO (sub 3) and SO (sub 4) for PO (sub 4) ). Rare metals not associated with apatite are associated mainly with the organic-matter component; Cr is most abundant. The average phosphorite consists of about 80 percent apatite, 10 percent quartz, 5 percent muscovite-illite, 2 percent organic matter, 1 percent dolomite-calcite, 1 percent iron oxide, and 1 percent other components. Texturally it is a medium-grained pellet phosphorite.

GERM Reservoir Database



Table 1A
Table 1B
Table 1C
Table 1D
Table 1E
Table 1F
Table 2
Table 3

Chemical Analyses
Major Constituents
Rare Metals

analyses; geochemistry; major-element analyses; mineral, composition; Paleozoic; Permian; Phosphate rock; Phosphoria, Formation; sedimentary rocks; trace-element analyses; United, States; western, 02, Geochemistry
Geochimica et Cosmochimica Acta
Elsevier Science
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