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Stable isotopic ratios of lead in surface waters of the central Pacific

Flegal, A. R. and Schaule, B. K. and Patterson, C. C. (1984) Stable isotopic ratios of lead in surface waters of the central Pacific. Marine Chemistry, 14 (3). pp. 281-287. ISSN 0304-4203. https://resolver.caltech.edu/CaltechAUTHORS:20140812-085344422

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Abstract

The geographic variation in the isotopic composition of lead in surface waters of the central Pacific provides new evidence of the global anthropogenic perturbation of the element's cycle. Ratios of ^(206)Pb/^(207)Pb decrease from 1.196 in the northern hemisphere (19°N, 158°W) to 1.176 in the southern hemisphere (15°S, 150°W). This decrease parallels the geographic variation in surface concentrations of soluble lead which decrease from 13 ng kg^(−1) at the northern station to 4 ng kg^(−1) at the southern station. Both the ^(206)Pb/^(207)Pb and the 206Pb/208Pb ratios of those waters fit between the isotopic ratios of Australian (Broken Hill) and North American (Mississippi Valley) leads which are the predominant sources of leads in anthropogenic emissions to the Pacific Ocean basin.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/0304-4203(84)90048-3DOIArticle
http://www.sciencedirect.com/science/article/pii/0304420384900483PublisherArticle
Additional Information:© 1984 Elsevier Science Publishers B.V., Amsterdam. Received July 12, 1983; revision accepted October 17, 1983. This research was supported by National Science Foundation grants OCE 8113211 and OCE-8309392, Marine Chemistry Division of Ocean Sciences.
Funders:
Funding AgencyGrant Number
NSFOCE-8113211
NSFOCE-8309392
Issue or Number:3
Record Number:CaltechAUTHORS:20140812-085344422
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140812-085344422
Official Citation:Flegal, A. R., Schaule, B. K., & Patterson, C. C. (1984). Stable isotopic ratios of lead in surface waters of the Central Pacific. Marine Chemistry, 14(3), 281-287. doi: http://dx.doi.org/10.1016/0304-4203(84)90048-3
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48371
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:12 Aug 2014 18:30
Last Modified:03 Oct 2019 07:03

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