Disseminated flake graphite and amorphous graphite deposit types. An analysis using grade and tonnage models
On the basis of differences derived from genetic, descriptive, and grade-tonnage data, graphite deposits are classified here into three deposit types: disseminated flake, amorphous (microcrystalline), or graphite veins. Descriptive models have been constructed for each of these deposit types, and grade-tonnage models are constructed for disseminated flake and amorphous deposit types. Grade and tonnage data are used also to construct grade-tonnage models that assist in predicting the size and grade of undiscovered graphite deposits. The median tonnage and carbon grade of disseminated flake deposits are 240 000 tonnes and 9% carbon and for amorphous deposits, 130 000 tonnes and 40% carbon. The differences in grade between disseminated flake and amorphous deposit types are statistically significant, whereas the differences in amount of contained carbon are not.
Citation Information
Publication Year | 1990 |
---|---|
Title | Disseminated flake graphite and amorphous graphite deposit types. An analysis using grade and tonnage models |
Authors | David M. Sutphin, James D. Bliss |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | CIM Bulletin |
Index ID | 70016144 |
Record Source | USGS Publications Warehouse |