Results 131 to 140 of about 5,424,467 (257)

Radiocarbon Age Anomalies in Pre- and Post-Bomb Land Snails from the Coastal Mediterranean Basin

, 2007
The shell carbonate of pre- and post-bomb samples of 2 species of terrestrial gastropods (Theba pisana and Cernuella virgata) sampled along the coast of Apulia, southern Italy, were dated using accelerator mass spectrometry and carbon stable isotopes ...
Quarta, G, Calcagnile, L, Mastronuzzi, G, Romaniello, L, D'Elia, M   +4 more
core  

Radiocarbon dating coming of age [PDF]

Proceedings of 50th International Winter Meeting on Nuclear Physics — PoS(Bormio2012), 2012
openaire   +2 more sources

High-precision Radiocarbon Dating with Accelerator Mass Spectrometry and Calibration of Radiocarbon Ages

The Quaternary Research (Daiyonki-Kenkyu), 2007
High-resolution as well as high-precision age estimation is particularly important for Quaternary research to realize its main aim of better understanding of global environmental changes of the past and realistic prediction of the changes in the near future.
openaire   +2 more sources

Geochemical and granulometric fingerprints of 8200 years of westerly wind variability in inner‐fjord lake sediments from Svalbard

Boreas, EarlyView.
The Arctic is warming faster than any other region on Earth. As sea ice diminishes, the surface boundary conditions, such as roughness and air–sea coupling, change and open‐water fetch increases. This may enhance wind forcing on Arctic coasts. Lake sediments can record these changes through the deposition of wind‐blown grains and elements, offering ...
Zofia Stachowska, Willem G. M. van der Bilt, Jan Kavan, Mark F. A. Furze, Ingunn H. Thorseth, Mateusz C. Strzelecki   +5 more
wiley   +1 more source

The Iron Age Around the Mediterranean: A High Chronology Perspective from the Groningen Radiocarbon Database

, 2009
In this paper, we present an overview of radiocarbon dating contributions from Groningen, concerning 9 sites from around the Mediterranean region: Israel, Sinai (Egypt), Jordan, Spain, Tunisia, and Italy. Full date lists of the 9 sites are presented. Our
van der Plicht, Johannes, Bruins, Hendrik J, Nijboer, Albert J   +2 more
core  

The last glacial cycle in western Norway—extensive MIS 5d glaciation, multiple glacial advances and LGM glacial advance phases

Boreas, EarlyView.
Raised marine MIS 5c sediments evidence extensive preceding (5d) glaciation in western Norway. This is the first out of five (or six) major Weichselian glacier advances that seem to correspond to North Atlantic sea surface cooling periods. Till beds capping the marine sediments show stages of pre‐LGM advance and subsequent retreat.
Eiliv Larsen, Hans Petter Sejrup, Brent Ward, William E. N. Austin, Hilary H. Birks, Oddvar Longva, Astrid Lyså, Dag Ottesen, Bente Philippsen, Martin Seiler   +9 more
wiley   +1 more source

Lead isotope evidence for Antarctic Ice Sheet changes in the Weddell Sea sector since the Last Glacial Maximum

Boreas, EarlyView.
The Weddell Sea influences global ocean circulation and sea level through modulating Antarctic Bottom Water formation and Antarctic Ice Sheet discharges, but the history of ice‐sheet dynamics in this region remains poorly constrained due to limited well‐dated geological records.
Huang Huang, Yuanyang Hu, Marcus Gutjahr, Florian Kirsch, Lijuan Lu, Jianjun Zou, Xuefa Shi, Michael Bollen, Jimin Yu, Gerhard Kuhn   +9 more
wiley   +1 more source

Bomb radiocarbon determines absolute age of adult fin whales, and validates use of earplug growth bands for age determination

Frontiers in Marine Science
Baleen whales are one of the few vertebrate taxa for which there are no confirmed estimates of longevity or methods of age determination. Lamina counts in the waxy earplug are assumed to represent age, but ageing accuracy is completely unknown.
Steven E. Campana, Sigríður Vala Finnsdóttir, Guðjón Már Sigurðsson   +2 more
doaj   +1 more source

Best Practices in Open and Reproducible Antarctic Marine Sediment Core Research

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract Marine sediment cores from Antarctica are archived by national programs for reuse and resampling by future researchers, creating a resourceful way to conduct Antarctic science. With reduced budgets to conduct Antarctic field work and to collect new sediment cores offshore of the icy continent, the accessibility of these archived cores and ...
L. E. Miller, R. A. Venturelli, L. O. Prothro, N. Varela, M. Szemak, J. Ruggiero, A. Vega‐González, A. P. Lepp, V. Stanley, K. Vadman, C. Fritz, K. Tinto, F. Nitsche   +12 more
wiley   +1 more source

Radiocarbon measurements of tree rings from 14 ka Huon pine.

, 2001
We have measured the radiocarbon content of tree rings from a section of Huon pine retrieved from Tasmania. The sample was divided into 39 five-ring sub-samples covering a period of 194 years.
Barbetti, M, Lange, Todd, Donahue, Douglas J   +2 more
core