Abstract
The abundances of 23 elements in vein graphite of two producing mines from Sri Lanka have been studied. The vein-type graphite deposits are located in a Precambrian granulite-grade metamorphic setting. Even though the origin of the graphite is still being debated, field observations suggest a fluid phase playing a major role in the transport of the carbonaceous matter. The abundance of elements in the graphite indicates the extent to which metals and other elements are transported in a fluid phase involving a carbonaceous matrix under granulite-grade metamorphic conditions. Fe, Ca and Mg are particularly abundant in the vein graphite. Transition elements such as Co, Ni, Cu and Zn though present in lesser concentrations behave in a similar manner geochemically as observed from their correlation patterns. The rare-earth elements - La and Y - are closely associated with phosphorus, indicating a possible genetic association.
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