Specimen of blackband from Cumnock formation, blackband resting on coal in lower bench of Cumnock coal bed. Chatham County, North Carolina. 1949.
Dates
Date Taken
1949
Summary
Specimen of blackband from Cumnock formation, blackband resting on coal in lower bench of Cumnock coal bed; note shiny coal blebs in blackband and white calcite fracture coatings from Carolina mine. Chatham County, North Carolina. 1949. Figure 19- B, in U.S.Geological Survey Professional paper 246. 1955.
Summary
Specimen of blackband from Cumnock formation, blackband resting on coal in lower bench of Cumnock coal bed; note shiny coal blebs in blackband and white calcite fracture coatings from Carolina mine. Chatham County, North Carolina. 1949. Figure 19- B, in U.S.Geological Survey Professional paper 246. 1955.
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