TY - RPRT TI - Geochemical and lead-isotopic studies of river and lake sediments, upper Arkansas River basin, Twin Lakes to Pueblo, Colorado AU - S. E. Church AU - S. A. Wilson AU - R. B. Vaughn AU - D.L. Fey PY - 1994 DO - 10.3133/ofr94412 UR - https://pubs.usgs.gov/publication/ofr94412 ID - ofr94412 ER -