I. Ancient Arctic Ice Does Not Contain Large Excesses of Natural Lead. II. Chronological Variations in Lead and Barium Concentrations and Lead Isotopic Compositions in Sediments of Four Southern California Off-Shore Basins

• Main Author: Ng, Chihang Amy
• Format: Thesis
• Language: English
• Published: California Institute of Technology 1982
• Subjects: Geochemistry; FOS Earth and related environmental sciences; Arctic; Antarctic; Greenland; Byrd; Byrd Station; Lorius; Antarc*; Antarctica; ice core
• Online Access: https://dx.doi.org/10.7907/mn3s-dd97; https://resolver.caltech.edu/CaltechETD:etd-08232006-143453

Part I This study settled the dispute and proved beyond doubt that excess lead today is 300-fold instead of the 5-fold, as proposed by other investigators, greater than prehistoric time. And, virtually all of the present-day excess of lead above natural levels was shown to be caused by industrial le...