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SR XRF study of natural micro- and nanostructured carbon from igneous rocks

Research paper by V. A. Ponomarchuk, Y. P. Kolmogorov, V. V. Ryabov, A. T. Titov, T. N. Moroz, D. V. Semenova, A. N. Pyryaev, A. V. Ponomarchuk

Indexed on: 08 Mar '13Published on: 08 Mar '13Published in: Bulletin of the Russian Academy of Sciences: Physics



Abstract

Carbon micro- and nanoscale structures formed during the consolidation of magmatic rocks is investigated. They are very similar to nanoscale carbon structures synthesized in a laboratory. A wide range of elements (Fe, K, Ti, V, Cr, Mn, Ni, Pt, Zn, Ga, Ge, Br, Sr, Zr, and Pb) are identified by XRF analysis in natural globules of graphite containing micro- and nanoscale structures. Some of these elements are thought to be natural catalysts in the formation of carbon structures by chemical vapor phase deposition (CCVD); the rest (rare-earth and noble metals) are considered to be useful as indicators of host rock mineralization.