Determination of natural and anthropogenic129I in marine sediments

Autor:	Peter W Kubik, R.T.D. Teng, G. R. Holdren, Udo Fehn, David Elmore, T. Brunelle
Rok vydání:	1986
Předmět:	geography geography.geographical_feature_category Isotope Continental shelf Sediment Mineralogy Tandem accelerator Mass spectrometry Natural (archaeology) Geophysics Oceanography Continental margin Mass spectrum General Earth and Planetary Sciences Geology
Zdroj:	Geophysical Research Letters. 13:137-139
ISSN:	0094-8276
DOI:	10.1029/gl013i002p00137
Popis:	/sup 129/I concentrations in two sediment cores from the continental slope near Cape Hatteras were determined with tandem accelerator mass spectrometry (TAMS). The natural /sup 129/I//sup 127/I ratios in these cores are approximately 10/sup -12/. The input of anthropogenic /sup 129/I has increased this ratio to values close to 10/sup -10/ at the surfacee of the sediments. The observed natural level of /sup 129/I is about two orders to magnitude above the current detection limit with TAMS, which opens up to possibility for applications of /sup 129/I in the marine system such as dating of sediments and crude oils and tracing of slow water movement in sediments.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9ed9fca90d83a5a63c75e5fa07b5cff8 https://doi.org/10.1029/gl013i002p00137 Zobrazit plný text záznamu Plný text