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

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

<p><u>Part I</u> 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 t...

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Bibliographic Details
Main Author: Ng, Chihang Amy
Format: Others
Language:en
Published: 1982
Online Access:https://thesis.library.caltech.edu/3203/3/ng_ca_1982.pdf
Ng, Chihang Amy (1982) 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. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/mn3s-dd97. https://resolver.caltech.edu/CaltechETD:etd-08232006-143453 <https://resolver.caltech.edu/CaltechETD:etd-08232006-143453>

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https://thesis.library.caltech.edu/3203/3/ng_ca_1982.pdf
Ng, Chihang Amy (1982) 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. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/mn3s-dd97. https://resolver.caltech.edu/CaltechETD:etd-08232006-143453 <https://resolver.caltech.edu/CaltechETD:etd-08232006-143453>

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