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02h0001261 20080605100923.0 s1992 dcuab frb |000|||eng | NGL n-usc-- a464.2 Strategic and critical minerals in the midcontinent region, United States / edited by Warren C. Day and Diane E. Lane. [Washington, D.C.] : U.S. G.P.O., 1992. iv, A11, ii, B21, ii, C10 p. : ill., maps ; 28 cm. Bulletin / U.S. Geological Survey ; 1989/A-C Includes bibliographical references. Midcontinent Strategic and Critical Minerals Project (U.S.) Ore-deposits ; Strategic materials Middle West. ; Middle West. aDay, Warren C. ; aLane, Diane E. ; aNuelle, Laurence M. ; tGeology and mineral paragenesis of the Pea Ridge iron ore mine, Washington County, Missouri--origin of the rare-earth-element- and gold-bearing breccia pipes. ; aHatch, Joseph R. ; tSome mineralogical and geochemical aspects of Middle and Upper Pennsylvanian marine black shales in part of the midcontinent region. ; aDesborough, George A. ; tMineralogical and geochemical analysis of the metal- and organic-rich Grassy Creek shale of the New Albany Group (Upper Devonian and Lower Mississippian) in Hardin County, southern Illinois. aCN bNNGL NGL P 254.2 B87 v1989/A-C ; h1 kaz070h