Mathematics – Logic
Scientific paper
Nov 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983e%26psl..65..249t&link_type=abstract
Earth and Planetary Science Letters, Volume 65, Issue 2, p. 249-262.
Mathematics
Logic
2
Scientific paper
Uranium transport in Archaean sediments was investigated by means of two carefully selected suites of variably weathered sediment samples from different localities of the Pongola Supergroup, Kaapvaal Craton, South Africa. U remobilization on a micron- to meter-scale was analyzed using U fission-track micromapping and α-spectrometry bulk measurements. These studies were supported by ore microscopy, neutron activation analysis and γ-spectrometry. By combining particle track technique and α-spectrometry detailed information is obtained on the U transport history of weathered surface samples. A simple model of U redistribution processes in geologic systems based on 238U-series disequilibria is developed and applied to the samples investigated. Some implications for γ-radiometric field methods are discussed.
Saager R.
Stupp H. D.
Thiel Klaus
Vorwerk R.
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