the phosphate deposits of south carolina. USGS Publications .
The deposits of phosphate rock in the vicinity of Charleston, S. C., .. 2,1908. 2 For discussion by Vaughan see Willis, Bailey, Index to the stratigraphy of North America: U, S. Geol. . 5,000 tons a year is quarried for use as a base or "filler" for the com .. machinery capable of removing cheaply a greater thickness of cover.Live Chat