• 10Be surface exposure dating of the deglaciation of northernmost Norway and Finland 

      Anjar, Johanna; Akçar, Naki; Lakeman, Thomas; Larsen, Eiliv; Seiler, Martin (Peer reviewed; Journal article, 2020)
      During the Last Glacial Maximum, the coast of Finnmark county, northern Norway, was covered by the Scandinavian Ice Sheet (SIS), which coalesced with the Barents Sea Ice Sheet (BSIS) off the coast. The region is thus ...
    • Findings from an in-Depth Annual Tree-Ring Radiocarbon Intercomparison 

      Wacker, Lukas; Scott, Ethel Marian; Bayliss, Alex; Brown, David; Bard, Édouard; Bollhalder, Silvia; Friedrich, Michael; Capano, Manuela; Cherkinsky, Alexander; Chivall, David; Culleton, Brendan J.; Dee, Michael W; Friedrich, Ronny; Hodgins, Gregory W.L.; Hogg, Alan G.; Kennett, Douglas J.; Knowles, Timothy D.; Kuitems, Margot; Lange, Todd E.; Miyake, Fusa; Nadeau, Marie-Josée; Nakamura, Toshio; Naysmith, J.P.; Olsen, Jesper; Omori, Toshihiko; Petchey, Fiona; Philippsen, Bente; Ramsey, Christopher Bronk; Prasad, G.V.A.; Seiler, Martin; Southon, John; Staff, Richard A.; Tuna, Thibaut (Peer reviewed; Journal article, 2020)
      The radiocarbon (14C) calibration curve so far contains annually resolved data only for a short period of time. With accelerator mass spectrometry (AMS) matching the precision of decay counting, it is now possible to ...
    • First 10Be measurements at Trondheim 1 MV AMS 

      Seiler, Martin; Anjar, Johanna; Værnes, Einar; Nadeau, Marie-Josée; Scognamiglio, Grazia (Journal article; Peer reviewed, 2018)
      The performance of the Trondheim 1 MV AMS system for 10Be measurements has been investigated. While the initial acceptance tests were done using the 1 + 1+ charge state, we concluded that the 2 + 2+ charge state offers ...
    • Gas Ion Source Performance of the EnvironMICADAS at HEKAL Laboratory, Debrecen, Hungary 

      Molnar, Mihaly; Meszaros, Marianna; Janovics, Robert; Major, Istvan; Hubay, Katalin; Buro, Botond; Varga, Tamas; Kertesz, Titanilla; Gergely, Virag; Vas, Adam; Orsovszki, Gergely; Molnar, Anita; Veres, Mihaly; Seiler, Martin; Wacker, Lukas; Jull, A J Timothy (Journal article; Peer reviewed, 2021)
      A coupled accelerator mass spectrometer–gas interface system has been successfully operating at the Hertelendi Laboratory of Environmental Studies, Debrecen, Hungary, since 2013. Over the last 6 years more than 500 gas ...
    • Quaternary landscape evolution in a tectonically active rift basin (paleo-lake Mweru, south-central Africa) 

      Olivotos, Spiros; Niedermann, Samuel; Flügel, Tyrel; Mouslopoulou, Vasiliki; Merchel, Silke; Cotterill, Fenton; Bookhagen, Bodo; Gärtner, Andreas; Rugel, Georg; Scharf, Andreas; Nadeau, Marie-Josée; Braucher, Régis; Seiler, Martin (Peer reviewed; Journal article, 2021)
      Located between the Northern Province of Zambia and the southeastern Katanga Province of the Democratic Republic of Congo, Lakes Mweru and Mweru Wantipa are part of the southwest extension of the East African Rift System ...
    • Radiocarbon calibration around AD 1900 from Scots pine (Pinus sylvestris) tree rings from northern Norway 

      Svarva, Helene Løvstrand; Grootes, Pieter Meiert; Seiler, Martin; Thun, Terje; Værnes, Einar; Nadeau, Marie-Josée (Journal article; Peer reviewed, 2019)
      To resolve an inconsistency around AD 1895 between radiocarbon (14C) measurements on oak from the British Isles and Douglas fir and Sitka spruce from the Pacific Northwest, USA, we measured the 14C content in single-year ...
    • Status Report of the Trondheim Radiocarbon Laboratory 

      Seiler, Martin; Grootes, Pieter Meiert; Haarsaker, John Øystein; Lelu, Sylvie; Rzadeczka-Juga, Izabela; Stene, Sølvi; Svarva, Helene Løvstrand; Thun, Terje; Værnes, Einar; Nadeau, Marie-Josée (Journal article; Peer reviewed, 2019)
      The Trondheim radiocarbon (14C) laboratory has evolved from a traditional radiocarbon decay counting laboratory to an accelerator mass spectrometry (AMS) facility primarily measuring 14C. This evolution required adjustments ...
    • The 1953-1965 rise in atmospheric bomb 14C in central Norway 

      Svarva, Helene Løvstrand; Grootes, Pieter Meiert; Seiler, Martin; Stene, Sølvi; Thun, Terje; Værnes, Einar; Nadeau, Marie-Josée (Journal article; Peer reviewed, 2019)
      Sub-annual measurements, eight increments per year, of cellulose in a Scots pine tree growing in central Norway are presented as a proxy for tropospheric 14CO2 at biweekly to monthly resolution. The results are validated ...