NDLI: A multi-radionuclide approach for in situ produced terrestrial cosmogenic nuclides: 10Be, 26Al, 36Cl and 41Ca from carbonate rocks

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A multi-radionuclide approach for in situ produced terrestrial cosmogenic nuclides: 10Be, 26Al, 36Cl and 41Ca from carbonate rocks

Content Provider	Semantic Scholar
Author	Merchel, Silke Benedetti, Lucilla Bourlès, Didier L. Braucher, Régis Dewald, Andreas Faestermann, Th. Finkel, Robert C. Korschinek, Gunther Masarik, Jozef Poutivtsev, M. Rochette, Pierre Rugel, Georg Zell, K. O.
Copyright Year	2010
Abstract	Abstract In contrary to siliceous environments, there is a severe lack of cosmogenic nuclides, that can be used for in situ dating of calcareous environments. Thus, we have investigated other nuclides than 36Cl as possible dating tools by cross-calibration. Cosmogenic 10Be is highly contaminated with atmospheric 10Be and cannot be removed quantitatively, even by a very sophisticated chemical cleaning procedure. Only working on clay-free calcite provides correct 10Be data, giving a 2.7 times higher production rate of 10Be from CaCO3 than from SiO2. Though, the production rate of 26Al is only ∼4.6% (CaCO3 relative to SiO2), 26Al can be easily determined in calcite, as the low intrinsic 27Al concentration yields to nearly as high 26Al/27Al as within corresponding quartz. The measurement of 41Ca, mainly produced via thermal-neutron-capture, is hindered by very low 41Ca/Ca:
Starting Page	1179
Ending Page	1184
Page Count	6
File Format	PDF HTM / HTML
DOI	10.1016/j.nimb.2009.10.128
Volume Number	268
Alternate Webpage(s)	http://www.gams.ph.tum.de/fileadmin/w00bjs/www/publications/2010_Be-Al-Cl-Ca.pdf
Alternate Webpage(s)	https://doi.org/10.1016/j.nimb.2009.10.128
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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