TY - RPRT TI - Geochemical data of drill core samples of carbonatites and associated igneous rocks, Benton, Arkansas AU - Marta J. Flohr AU - J. Michael Howard PY - 1994 DO - 10.3133/ofr94450 UR - https://pubs.usgs.gov/publication/ofr94450 ID - ofr94450 ER -