A regional assessment of the deglaciation history of the Swiss Plateau based on newly obtained and re-evaluated Be-10 cosmic-ray exposure ages

Autor: Felix Martin Hofmann, Alexander R. Groos, Ezequiel Garcia Morabito, Julian Struck, Christian Gnägi, Andreas Scharf, Georg Rugel, Silke Merchel, Roland Zech

Publikováno v: Quaternary Science Advances, Vol 13, Iss , Pp 100124- (2024)

During marine oxygen isotope stage (MIS) 2, the Swiss Plateau temporarily hosted large piedmont lobe glaciers that retreated after their maximum advance back to the fringe of the Alps. The presence of moraines in this region indicates that overall gl

Externí odkaz: https://doaj.org/article/6d24da96017249d48eb38dab5910107a

Feldspar flotation as a quartz-purification method in cosmogenic nuclide dating: A case study of fluvial sediments from the Pamir

Autor: Vasila A. Sulaymonova, Margret C. Fuchs, Richard Gloaguen, Robert Möckel, Silke Merchel, Martin Rudolph, Matthias R. Krbetschek

Publikováno v: MethodsX, Vol 5, Iss , Pp 717-726 (2018)

Cosmogenic nuclide (CN) dating relies on specific target minerals such as quartz as markers to identify geologic events, including the timing of landscape evolution. The presence of feldspar in sediment samples poses a challenge to the separation of

Externí odkaz: https://doaj.org/article/32e6d27b85cc40468ff5e822390ad801

Nature Does the Averaging—In-Situ Produced 10Be, 21Ne, and 26Al in a Very Young River Terrace

Autor: Andreas Gärtner, Silke Merchel, Samuel Niedermann, Régis Braucher, ASTER-Team, Peter Steier, Georg Rugel, Andreas Scharf, Loic Le Bras, Ulf Linnemann

Publikováno v: Geosciences, Vol 10, Iss 6, p 237 (2020)

The concentrations of long-lived in-situ produced cosmogenic nuclides (10Be, 21Ne, 26Al) in quartz obtained from a very recent (~200 a; based on 14C data on organic material) terrace of the Swakop River in Namibia are nearly constant throughout a 322

Externí odkaz: https://doaj.org/article/0c5d24ef3fc84329aa3457809c27b84d

53 Mn and 60 Fe in iron meteorites—New data, model calculations

Autor: Sarah R. N. McIntyre, Dominik Koll, Dorothea Schumann, M.B. Froehlich, Georg Rugel, Anton Wallner, Silke Merchel, Ingo Leya, Stefan Pavetich, Niko Kivel, Thomas Faestermann, J.-C. David, Thomas Smith, Gunther Korschinek

Publikováno v: Leya, Ingo; David, Jean-Christophe; Faestermann, Thomas; Froehlich, Michaela; Kivel, Niko; Koll, Dominik; Korschinek, Gunther; McIntyre, Sarah; Merchel, Silke; Pavetich, Stefan; Rugel, Georg; Schumann, Dorothea; Smith, Thomas; Wallner, Anton (2020). 53 Mn and 60 Fe in iron meteorites—New data, model calculations. Meteoritics & planetary science, 55(4), pp. 818-831. Wiley 10.1111/maps.13466

We measured specific activities of the long‐lived cosmogenic radionuclides ⁶⁰Fe in 28 iron meteorites and ⁵³Mn in 41 iron meteorites. Accelerator mass spectrometry was applied at the 14 MV Heavy Ion Accelerator Facility at ANU Canberra for a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cabcbde42c4a5be5bc0a3701e4f62eca
https://doi.org/10.1111/maps.13466

Blaubeuren, Cloppenburg, and Machtenstein—Three recently recognized H‐group chondrite finds in Germany with distinct terrestrial ages and weathering effects

Autor: Addi Bischoff, Jakob Storz, Jean‐Alix Barrat, Dieter Heinlein, A. J. Timothy Jull, Silke Merchel, Andreas Pack, Georg Rugel

Publikováno v: Meteoritics & Planetary Science (1086-9379) (Wiley), 2022-01, Vol. 57, N. 1, P. 136-153
Meteoritics & Planetary Science 57(2022)1, 136-153
Meteoritics & Planetary Science
Meteoritics & Planetary Science, 2022, 57, pp.136-153. ⟨10.1111/maps.13779⟩

In the last 7 years, three meteorites (Blaubeuren, Cloppenburg, and Machtenstein) found in Germany were identified as chondrites. Two of these rocks had been recovered from the impact sites decades ago but were not considered to be meteorites. The ai

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66140573141aa3e73129bef8d877284d
https://archimer.ifremer.fr/doc/00746/85822/