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Disseminated flake graphite and amorphous graphite deposit types. An analysis using grade and tonnage models

CIM Bulletin

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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.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Disseminated flake graphite and amorphous graphite deposit types. An analysis using grade and tonnage models
Series title:
CIM Bulletin
Volume
83
Issue:
940
Year Published:
1990
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
85
Last page:
89
Number of Pages:
5