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Rare earth elements in a sampled coal from the Pirin ...

International Journal of Coal Geology, 7 (1987) 301-314 301 Elsevier Science Publishers B.V., Amsterdam -- Printed in The Netherlands Rare Earth Elements in a Sampled Coal from the Pirin Deposit, Bulgaria GRETA M. ESKENAZY Department of Geology, University of Sofia, Sofia 1504, Rusky 15, Bulgaria (Received March 16, 1985; revised and accepted May 26, 1986) ABSTRACT Eskenazy, G.M., 1987.

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Coal, Kentucky Geological Survey, University of Kentucky

Geological Educational Resources for K-16. In 1996, the Education Committee of the Kentucky Geological Survey, in conjunction with the Kentucky Society of Professional Geologists, established the Earth Science Education Network (ESEN).

Coal—A Complex Natural Resource - USGS

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