TY - RPRT TI - Partitioning of elements between two size sediment fractions in samples from nineteen areas of the Western United States AU - R. C. Severson AU - K. C. Stewart AU - Thelma F. Harms PY - 1991 DO - 10.3133/ofr91381 UR - https://pubs.usgs.gov/publication/ofr91381 ID - ofr91381 ER -