TY - RPRT TI - Spectrographic analyses of insoluble-residue samples, Joplin 1 degree x 2 degrees quadrangle, Kansas and Missouri : drill hole nos. 36, 37, and 38 AU - John H. Bullock AU - Helen A. Whitney PY - 1989 DO - 10.3133/ofr89299 UR - https://pubs.usgs.gov/publication/ofr89299 ID - ofr89299 ER -