| Abstract: | 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. |
| Genre: | Article |
| ProdID: | 70016144 |
| Citation Author: | Sutphin, David, M.; Bliss, James, D. |
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| Citation End Page: | 89 |
| Citation Issue: | 940 |
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| Citation Language: | English |
| Citation Larger Work Title: | CIM Bulletin |
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| Citation Number Of Pages: | 5 |
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| Citation Search Results Text: | Disseminated flake graphite and amorphous graphite deposit types. An analysis using grade and tonnage models; 1990; Article; Journal; CIM Bulletin; Sutphin, David, M.; Bliss, James, D. |
| Citation Start Page: | 85 |
| Citation Volume: | 83 |
| Citation Year: | 1990 |
| Type: | citation/reference |
| Text: | Disseminated flake graphite and amorphous graphite deposit types. An analysis using grade and tonnage models; 1990; Article; Journal; CIM Bulletin; Sutphin, David, M.; Bliss, James, D. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Mon, 1 Jan 1990 00:00 -0600 |
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