Official websites use. Share sensitive information only on official, secure websites. Roughly fifty years ago, a small group of scientists from Belgium and the United States, trying to better constrain ice sheet accumulation rates, attempted to apply what was then know about environmental lead as a potential geochronometer. Thus Goldberg developed the first principles of the Pb dating method, which was soon followed by a paper by Crozaz et al.

Shortly thereafter, Koide et al.

(] first used Pb for dating recent lacustrine sediments, many contributions have ap- peared in the field of Pb geochronology. A few examples.

These metrics are regularly updated to reflect usage leading up to the last few days. Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts. The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.

Find more information on the Altmetric Attention Score and how the score is calculated. Many of these studies rarely include the overlying vegetation compartment i.