Binnie, S. A., Dewald, A., Heinze, S., Voronina, E., Hein, A., Wittmann, H., von Blanckenburg, F., Hetzel, R., Christl, M., Schaller, M., Leanni, L., Hippe, K., Vockenhuber, C., Ivy-Ochs, S., Maden, C., Fulop, R-H, Fink, D., Wilcken, K. M., Fujioka, T., Fabel, D., Freeman, S. P. H. T., Xu, S., Fifield, L. K., Akcar, N., Spiegel, C., Dunai, T. J., Aumaitre, G., Bourles, D. L. and Keddadouche, K. (2019). Preliminary results of CoQtz-N: A quartz reference material for terrestrial in situ cosmogenic Be-10 and Al-26 measurements. Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms, 456. S. 203 - 213. AMSTERDAM: ELSEVIER. ISSN 1872-9584

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Abstract

There is growing interest in geochronological applications of terrestrial in situ-produced cosmogenic nuclides, with the most commonly measured being Be-10 and Al-26 in quartz. To extract and then separate these radio-nuclides from quartz and prepare them in the oxide form suitable for accelerator mass spectrometry (AMS) requires extensive and careful laboratory processing. Here we discuss the suitability of a crushed, sieved and etched, sub-aerially exposed vein quartz specimen (CoQtz-N) to act as a reference material for chemical laboratory preparation and AMS measurements. Splits of CoQtz-N were distributed to eleven target preparation laboratories. The CoQtz-N Be-10 targets were then measured at seven different AMS facilities and five of the preparation laboratories had their Al-26 targets measured at four different AMS facilities. We show that CoQtz-N splits are sufficiently homogeneous with regard to nuclide concentrations, that it has been cleaned of any atmospheric derived (i.e. meteoric) Be-10 and that it has low concentrations of the major elements that can interfere with Be and Al extraction chemistry and AMS measurements. We derive preliminary concentrations for Be-10 and Al-26 in CoQtz-N as 2.53 +/- 0.09 x 10(6) at/g and 15.6 +/- 1.6 x 10(6) at/g, respectively, at the 95% confidence limit.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Binnie, S. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dewald, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Heinze, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Voronina, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hein, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wittmann, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
von Blanckenburg, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hetzel, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Christl, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schaller, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Leanni, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hippe, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vockenhuber, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ivy-Ochs, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Maden, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fulop, R-HUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fink, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wilcken, K. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fujioka, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fabel, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Freeman, S. P. H. T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Xu, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fifield, L. K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Akcar, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Spiegel, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dunai, T. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Aumaitre, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bourles, D. L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Keddadouche, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-133441
DOI: 10.1016/j.nimb.2019.04.073
Journal or Publication Title: Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
Volume: 456
Page Range: S. 203 - 213
Date: 2019
Publisher: ELSEVIER
Place of Publication: AMSTERDAM
ISSN: 1872-9584
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
ACCELERATOR MASS-SPECTROMETRY; EXERCISEMultiple languages
Instruments & Instrumentation; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical; Physics, NuclearMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/13344

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