TY - RPRT TI - Spectrographic and chemical analyses of whole-rock and insoluble-residue samples, Rolla 1° x 2° quadrangle, Missouri: Drill hole No. 4 AU - Elwin L. Mosier AU - J.G. Viets AU - S.K. McDanal PY - 1978 DO - 10.3133/ofr78470a UR - https://pubs.usgs.gov/publication/ofr78470A ID - ofr78470A ER -