GRADE AND TONNAGE MODEL OF WARM-CURRENT TYPE PHOSPHATE DEPOSITS
by Dan L. Mosier
DATA REFERENCE Krauss and others, (1984)
COMMENTS About half of the deposits are actually districts. Grades have been adjusted to reflect in-place grades rather than commonly reported concentrate grades. See figs. 180-181.
Figure 180. Tonnages of warm-current type phosphate deposits.

Figure 181. Phosphate grades of warm-current type phosphate deposits.

DEPOSITS
Name County
Big Four USFL
Bonny Lake USFL
Clear Springs USFL
East Florida USFL
Fort Green USFL
Hard Rock USFL
Haynsworth USFL
Kingsford USFL
Lonesome USFL
Noralyn-Phosphoria USFL
North Florida USFL
North Carolina USNC
Northeast Florida USFL
offshore Savannah USGA
Paulista BRZL
Rockland USFL
Savannah River USGA
South Florida USFL