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B.B. Higgins

Publications and source records attributed to B.B. Higgins.

3 recordsLinked to original sources

Regional implications of Triassic or Jurassic age for basalt and sedimentary red beds in the South Carolina coastal plain

Whole rock potassium-argon ages for samples of subsurface basalt recovered near Charleston, South Carolina, are interpreted to indicate a Triassic or Jurassic age for the basalt and underlying sedimentary red beds. This age is consistent with existing evidence indicating that an early Mesozoic basin is present in the subsurface of a large part of the coastal plain of South Carolina, Georgia, Florida, and Alabama.

South Carolina

Uranium and phosphate resources in the Cooper Formation of the Charleston region, South Carolina

Phosphate deposits formerly exploited in the Charleston district were formed by weathering and reworking of the Cooper Formation (Eocene and Oliogcene). Previous workers have shown that unusual concentrations of uranium occur in phosphate-rich nodular material formed during subareal weathering. We found that the old mining district is on an erosional high of the Cooper Formation and in a topographic depression, but that the process of weathering enrichment of the Cooper Formation extends beyond the mining district. Fresh sediments from the Cooper Formation average 14.5 ppm uranium and 1.0 percent P 2 0 5 for Oliogcene samples and 5.6 ppm U and 0.15 percent P 2 0 5 for Eocene samples. Zones of secondary enrichment over undifferentiated Cooper Formation average 2 m thick and have average values of 60 ppm U and 5.4 percent P 2 0 5 . No deposits clearly of economic importance were found, although detailed studies may reveal such deposits.

South Carolina