TY - RPRT TI - High-precision 41K/39K measurements by MC-ICP-MS indicate terrestrial variability of δ41K AU - Leah E. Morgan AU - Danielle P. Santiago Ramos AU - Brett Davidheiser-Kroll AU - John Faithfull AU - Nicholas S. Lloyd AU - Rob M. Ellam AU - John A. Higgins PY - 2018 DO - 10.1039/c7ja00257b UR - https://pubs.usgs.gov/publication/70193563 ID - 70193563 ER -