TY - RPRT TI - The Late Cambrian SPICE (δ13C) event and the Sauk II-Sauk III regression: new evidence from Laurentian basins in Utah, Iowa, and Newfoundland AU - Matthew R. Saltzman AU - Clinton A. Cowan AU - Anthony C. Runkel AU - Bruce Runnegar AU - Michael C. Stewart AU - Allison R. Palmer PY - 2004 DO - 10.1306/120203740366 UR - https://pubs.usgs.gov/publication/70027221 ID - 70027221 ER -