TY - RPRT TI - Spectrographic and chemical analyses of whole-rock and insoluble-residue samples, Rolla 1 degree x 2 degrees quadrangle, Missouri: Drill holes no. 23 and 24 AU - E. L. Mosier AU - J.G. Viets AU - M. S. Erickson AU - S.K. McDanal PY - 1978 DO - 10.3133/ofr78470r UR - https://pubs.usgs.gov/publication/ofr78470R ID - ofr78470R ER -