Results 51 to 60 of about 158,813 (385)

Groningen Radiocarbon Dates IV [PDF]

Radiocarbon, 1963
An attempt has been made to assemble the large number of C14 dates measured in Groningen since the last date list was published in 1958. We have not succeeded in preparing all the measurements done in this time; the present list contains a more or less random selection. It is hoped the rest will be included in next year's list.
J. C. Vogel, H. T. Waterbolk
openaire   +3 more sources

Annual Bands in Vertebrae Validated by Bomb Radiocarbon Assays Provide Estimates of Age and Growth of Whale Sharks

Frontiers in Marine Science, 2020
Conservation and management strategies for endangered and threatened species require accurate estimates of demographic parameters such as age and growth.
Joyce J. L. Ong, Mark G. Meekan, Hua Hsun Hsu, L. Paul Fanning, Steven E. Campana   +4 more
doaj   +1 more source

North Atlantic marine ¹⁴C reservoir effects: implications for late-Holocene chronological studies [PDF]

, 2009
We investigated surface ocean–atmosphere 14C offsets for the later Holocene at eight locations in the eastern North Atlantic. This resulted in 11 new ΔR assessments for the west coast of Ireland, the Outer Hebrides, the north coast of the Scottish ...
A.J. Dugmore, Aitken, Ascough, Ascough, Ascough, Ascough, Ascough, Ashmore, Austin, Barrett, Broecker, Bronk Ramsey, Bronk Ramsey, Campin, Church, Culleton, Dugmore, Dye, Eiríksson, Eiríksson, Forman, G.T. Cook, Grove, Harkness, Heier-Neilsen, Hughen, Jiang, Jones, Knight, Kovanen, Lamb, Mangerud, McGovern, McKay, Mook, P.L. Ascough, Paull, Reimer, Reimer, Siani, Siani, Slota, Southon, Spiker, Stuiver, Stuiver, Stuiver, Ulm, Vandeputte, Waelbroeck, Ward, Yoneda   +51 more
core   +1 more source

An open-source database for the synthesis of soil radiocarbon data: International Soil Radiocarbon Database (ISRaD) version 1.0

Earth System Science Data, 2020
. Radiocarbon is a critical constraint on our estimates of the timescales of soil carbon cycling that can aid in identifying mechanisms of carbon stabilization and destabilization and improve the forecast of soil carbon response to management or ...
C. Lawrence, J. Beem-Miller, A. Hoyt, G. Monroe, C. Sierra, Shane W. Stoner, K. Heckman, J. Blankinship, S. Crow, G. McNicol, S. Trumbore, P. Levine, O. Vindušková, K. Todd-Brown, C. Rasmussen, C. H. Hicks Pries, C. Schädel, K. McFarlane, S. Doetterl, C. Hatté, Yujie He, C. Treat, J. Harden, M. Torn, Cristian Estop‐Aragonés, Asmeret Asefaw Berhe, M. Keiluweit, Ágatha Della Rosa Kuhnen, E. Marín-Spiotta, A. Plante, A. Thompson, Zheng Shi, J. Schimel, L. Vaughn, Sophie F. von Fromm, Rota Wagai   +35 more
semanticscholar   +1 more source

Bern Radiocarbon Dates V [PDF]

Radiocarbon, 1965
This list includes about half of the samples measured during the last year. Many studies need further investigation and the results will be published later when additional information will make better interpretations possible.The equipment and the technique is essentially the same as described earlier (Bern IV).Reliable results on CO2 samples extracted
H. Oeschger, T. Riesen
openaire   +3 more sources

Sources of CO2 Produced in Freshly Thawed Pleistocene-Age Yedoma Permafrost

Frontiers in Earth Science, 2022
The release of greenhouse gases from the large organic carbon stock in permafrost deposits in the circumarctic regions may accelerate global warming upon thaw.
Jan Olaf Melchert, Philipp Wischhöfer, Christian Knoblauch, Christian Knoblauch, Tim Eckhardt, Tim Eckhardt, Susanne Liebner, Susanne Liebner, Janet Rethemeyer   +8 more
doaj   +1 more source

Sum things are not what they seem: Problems with point-wise interpretations and quantitative analyses of proxies based on aggregated radiocarbon dates

The Holocene, 2020
Radiocarbon-date assemblages are commonly used as proxies for past human and environmental phenomena. Prominent examples of target phenomena include past population levels and sea level fluctuations.
W. Carleton, Huw S. Groucutt
semanticscholar   +1 more source

UCLA Radiocarbon Dates I [PDF]

Radiocarbon, 1962
The measurements reported in this list have been made since the Radiocarbon Dating Laboratory at the Institute of Geophysics, UCLA became operational in August 1961. CO2proportional counting was used for all measurements in an 7 · 5-L counter at 1 atm pressure.
G. J. Fergusson, W. F. Libby
openaire   +3 more sources

Using dental and activity indicators in order to explore possible sex differences in an adult rural medieval population from Thebes (Greece)

Anthropological Review, 2017
Assessing the subsistence strategies of past populations; through their dietary and occupational patterns; could provide important information regarding social status and possible gender differences, especially in turbulent historical periods, as the one
Michael Dimitra Ermioni, Iliadis Efstathios, Manolis Sotiris K.   +2 more
doaj   +1 more source

Early Neolithic population dynamics in the Eastern Balkans and the Great Hungarian Plain

Documenta Praehistorica, 2017
In this study, we reconstruct population dynamics in the Early Neolithic of the Eastern Balkans and the Great Hungarian Plain using frequency of radiocarbon dates as a population proxy.
Tamara Blagojević, Marko Porčić, Kristina Penezić, Sofija Stefanović   +3 more
doaj   +1 more source