First international 26Al interlaboratory comparison – Part II

Merchel, Silke; Bremser, Wolfram

doi:10.1016/j.nimb.2005.05.051

Cited by 6 publications

(3 citation statements)

References 19 publications

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“…; Merchel and Bremser, 2004). The half-lives used and the standardisation method employed at ASTER (SM-Al-11/07KNSTD) imply that the 26 Al/ 10 Be spallation production ratio is ~6.61 ± 0.52.…”

mentioning

confidence: 99%

Late Cenozoic evolution of the Ariège River valley (Pyrenees) constrained by cosmogenic 26Al/10Be and 10Be/21Ne dating of cave sediments

et al. 2020

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Despite increasing knowledge on the orogenic phases of the Pyrenees, the Neogene evolution of the range remains poorly constrained. The central Pyrenees, particularly the Ariège River valley and its terrace systems and glacial extensions, are key to reconstructing Pyrenean evolution during the Neogene. However, few terrace relics remain on the piedmont edges. To overcome this limitation and temporally extend the dataset obtained from terraces, we focus on alluvium-filled horizontal epiphreatic passages developed in limestone karstic networks. These landforms record the transient position of former local base levels during the process of valley deepening, similar to fluvial terraces. The alluvium fills of the studied caves in the Tarascon-sur-Ariège area, in the transition zone between the upper range and the piedmont, therefore enable the reconstruction of the geodynamic evolution of the Ariège River valley. All studied caves are developed on at least eight levels. Based on burial durations determined by 26 Al/ 10 Be and 10 Be/ 21 Ne terrestrial cosmogenic nuclide dating of samples from epiphreatic levels, our results indicate Langhian to Messinian (~13-5 Ma) incision rates averaging 48 m Myr-1. However, the obtained record does not allow us to accurately retrace the Pliocene evolution of the area due to the lack of known caves at corresponding levels. Moreover, raised local base levels during glacial phases both make the record more complex and call into question the methodological approach in terms of potential internal sediment remobilization and mixing related to implied re-flooding periods.

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mentioning

confidence: 99%

Late Cenozoic evolution of the Ariège River valley (Pyrenees) constrained by cosmogenic 26Al/10Be and 10Be/21Ne dating of cave sediments

et al. 2020

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“…Merchel and Bremser have prepared a paper that described the first international Al-26 inter-laboratory comparison. 201 This paper is actually an extension of previous work, but because the results were produced by seven radionuclide counting laboratories, it is still worth mentioning The meteorite sample was analyzed by all the participating laboratories and the results produced showed good overall agreement, although after detailed statistical analysis including some multivariate approaches, there was some evidence of inter-laboratory bias. Richter and co-workers have produced two papers discussing the preparation and certification of synthetic U isotope mixtures 202 and the recertification of a series of U isotope reference materials.…”

Section: Nuclear Materialsmentioning

confidence: 80%

Atomic spectrometry update. Industrial analysis: metals, chemicals and advanced materials

Charlton

Fisher

Goodall

et al. 2006

J. Anal. At. Spectrom.

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“…Four meteorite samples were distributed in a round robin exercise to address this issue. 373 Although the results were not statistically different from each other, on further examination some bias between different laboratories was observed; more work on evaluating and stating measurement uncertainty is required. 4.4.5 X-ray techniques.…”

Section: Magnetic Sector Instrumentationmentioning

confidence: 82%

Atomic spectrometry update. Environmental analysis

Butler

Cook

Harrington

et al. 2007

J. Anal. At. Spectrom.

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This is the twenty-third annual review published in JAAS of the application of atomic spectrometry to the chemical analysis of environmental samples. This update refers to papers published approximately between September 2006 and August 2007. In the analysis of air, there has been an increased awareness of the need to collect and characterise ultrafines, i.e. particles below 100 nm in size, and such work is being facilitated by the development of real-time aerosol mass spectrometric techniques. In the analysis of plant and water matrices, elemental speciation protocols for elements such as As, Cr Hg, Sb, Se and Sn continue to receive considerable attention with particular interest in the speciation of Se compounds in plant matrices. Laser ablation continues continues to go from strength to strength in being adopted as a solid sampling tool in geochemical analysis. Such work is being underpinned by increased knowledge of the ablation process and resultant transport and plasma effects coupled with developments in fs UV laser technology. This technique, in conjunction with multi-collector ICP-MS technology, is increasingly being used for the in situ determination of isotope ratios in geological samples. Feedback on this review is most welcome and the lead author can be contacted using the email address provided.

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First international 26Al interlaboratory comparison – Part II

Cited by 6 publications

References 19 publications

Late Cenozoic evolution of the Ariège River valley (Pyrenees) constrained by cosmogenic 26Al/10Be and 10Be/21Ne dating of cave sediments

Late Cenozoic evolution of the Ariège River valley (Pyrenees) constrained by cosmogenic 26Al/10Be and 10Be/21Ne dating of cave sediments

Atomic spectrometry update. Industrial analysis: metals, chemicals and advanced materials

Atomic spectrometry update. Environmental analysis

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