Results 91 to 100 of about 158,813 (385)

Findings from an in-Depth Annual Tree-Ring Radiocarbon Intercomparison

Radiocarbon: An International Journal of Cosmogenic Isotope Research, 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 efficiently produce large datasets of
L. Wacker, E. Scott, A. Bayliss, D. Brown, E. Bard, S. Bollhalder, M. Friedrich, M. Capano, A. Cherkinsky, D. Chivall, B. Culleton, M. Dee, R. Friedrich, G. Hodgins, A. Hogg, D. Kennett, T. Knowles, M. Kuitems, T. Lange, F. Miyake, M. Nadeau, T. Nakamura, J. P. Naysmith, J. Olsen, T. Omori, F. Petchey, B. Philippsen, C. Bronk Ramsey, G. Prasad, M. Seiler, J. Southon, R. Staff, T. Tuna   +32 more
semanticscholar   +1 more source

Ucr Radiocarbon Dates I [PDF]

Radiocarbon, 1974
A radiocarbon facility has been installed at the University of California, Riverside (UCR) to support interdisciplinary studies including archaeologic, archaeometric, geophysical, and geologic research. The laboratory was built between 1970 and 1973. Initially, a sample pretreatment and combustion system designed for a proportional CO2 counting system ...
openaire   +3 more sources

Geochronology of the Whittlesey sedimentary succession, eastern England: The ‘Pompeii’ of the British late Middle Pleistocene to Holocene record

Journal of Quaternary Science, EarlyView.
Abstract The sedimentary succession at Whittlesey preserves a unique British late Middle Pleistocene to Holocene record back to a time equivalent to at least marine oxygen isotope stage 8 (ca. 250 ka). This study builds on previously published sedimentology, geochronology and palaeoecology results to establish 20 sedimentary facies associations, with ...
H. E. Langford, M. D. Bateman, R. M. Briant, D. J. Horne   +3 more
wiley   +1 more source

Impact of the Fukushima Accident on ³H and ¹⁴C Environmental Levels: A Review of Ten Years of Investigation

Molecules, 2023
The investigation of the impact of the Fukushima accident is still going on although more than ten years have passed since the disaster. The main goal of this paper was to summarize the results of tritium and radiocarbon determinations in different ...
Jakub Kaizer, Ivan Kontuľ, Pavel P. Povinec   +2 more
doaj   +1 more source

Pattern of extinction of the woolly mammoth in Beringia. [PDF]

, 2012
Extinction of the woolly mammoth in Beringia has long been subject to research and speculation. Here we use a new geo-referenced database of radiocarbon-dated evidence to show that mammoths were abundant in the open-habitat of Marine Isotope Stage 3 (∼45-
Beilman, DW, Kremenetski, KV, Kuzmin, YV, MacDonald, GM, Orlova, LA, Shapiro, B, Van Valkenburgh, B, Wayne, RK   +7 more
core   +1 more source

Assessing the intensity of Late Quaternary humid phases in the Nefud Desert, northern Arabia

Journal of Quaternary Science, EarlyView.
ABSTRACT The climate history of the major dryland zones of the world, such as the Saharo–Arabian Desert belt, plays a key role in the dispersal of early humans through these intermittently inhospitable regions. Here, we assess the relative intensity of Late Quaternary humid phases in northern Arabia through lithological, geochemical, palaeoecological ...
Richard Clark‐Wilson, Simon J. Armitage, Ian Candy, Paul S. Breeze, Nick A. Drake, Huw S. Groucutt, Abdullah M. Alsharekh, Faisal Al‐Jibreen, Michael D. Petraglia, David B. Ryves   +9 more
wiley   +1 more source

Holocene climate oscillations, seismotectonic events and human–environmental interactions reconstructed from the Giannades palaeolake on Corfu (Eastern Mediterranean, Greece)

Journal of Quaternary Science, EarlyView.
ABSTRACT The Mediterranean is particularly sensitive to rapid climate changes (RCCs) during the Holocene. An increasing number of natural climate archives revealed that socio‐economic developments were influenced by such RCCs since the Palaeolithic. However, multi‐millennial and high‐resolution archives are still rare and often located in mountainous ...
Esra Reichert, Peter Fischer, Bernd Zolitschka, Tina Georg, Lea Obrocki, Denis Scholz, Katja Sporn, Andreas Vött   +7 more
wiley   +1 more source

Warming and monsoonal climate lead to large export of millennial-aged carbon from permafrost catchments of the Qinghai-Tibet Plateau

Environmental Research Letters, 2020
Permafrost carbon pool destabilization causes substantial fluvial export of soil carbon, yet the export patterns and magnitudes are not well understood. Here we investigated the radiocarbon ( ^14 C) in dissolved organic and inorganic carbon (DOC and DIC,
Chunlin Song, Genxu Wang, Negar Haghipour, Peter A Raymond   +3 more
doaj   +1 more source

Hidden Insights: Comprehensive Radiological Analysis of Four Skeletal Populations From 13th–19th Century Southern Finland Reveals Neoplastic and Other Lesions Invisible on Bone Surfaces

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT This study aims to identify lesions confined to the internal structures of bones. A radiographic analysis was performed on 219 archaeological, historical period skeletons from southern Finland. Although the study examines nearly all preserved skeletal elements using plain radiographs, it does not incorporate computed tomography.
Kati Salo, Anna Föhr, Rimantas Jankauskas   +2 more
wiley   +1 more source

A Second Mortuary Hiatus on Lake Baikal in Siberia and the Arrival of Small-Scale Pastoralism [PDF]

, 2017
Peer reviewedPublisher ...
Kharinskii, Artur A., Losey, Robert J., Nomokonova, Tatiana, Waters-Rist, Andrea L.   +3 more
core   +1 more source