TY - RPRT TI - 238U-234U-230Th chronometry of Fe-Mn crusts: Growth processes and recovery of thorium isotopic ratios of seawater AU - F. Chabaux AU - A.S. Cohen AU - R. K. O’Nions AU - J.R. Hein PY - 1995 DO - 10.1016/0016-7037(94)00379-z UR - https://pubs.usgs.gov/publication/70248770 ID - 70248770 ER -