The top documents tagged [average black shale]

METALS IN PENNSYLVANIAN BLACK SHALES FROM ORE FLUIDS NOT FROM SEAWATER rmc coveneyr@umkc.edu Illi no is M ETALS IN P ENNSYLVANIAN BLACK SHALES FROM ORE.

METALS IN PENNSYLVANIAN BLACK SHALES FROM ORE FLUIDS NOT FROM SEAWATER rmc [email protected] Illi no is M ETALS IN P ENNSYLVANIAN BLACK SHALES FROM ORE.

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