Title |
Utilization of mull (forest humus layer) in geochemical exploration in the Empire district, Clear Creek County, Colorado : sampling of the forest humus layer may be an effective geochemical tool in areas where the bedrock is covered by colluvium or glacial drift / by Gary C. Curtin, Hubert W. Lakin, Arthur E. Hubert, E.L. Mosier and K.C. Watts. |
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