Results 141 to 150 of about 158,813 (385)

Integrating Sr isotopes, microchemistry, and genetics to reconstruct Salmonidae species and life history

Archaeometry, EarlyView.
Abstract Recent approaches to fisheries research emphasize the importance of the coproduction of knowledge in building resilient and culturally mindful fisheries management frameworks. Despite widespread recognition of the need for Indigenous knowledge and historical reference points as baseline data, archaeological data are rarely included in ...
Ross Salerno, Remi Murdoch, Joanna Elmore, Taylor Wilcox, Jens Hegg, Catherine S. Austin, Michael LeMoine, Jade Luckhurst, Alexandra K. Fraik, Molly Carney   +9 more
wiley   +1 more source

Burial and Origin of Permafrost‐Derived Carbon in the Nearshore Zone of the Southern Canadian Beaufort Sea

Geophysical Research Letters, 2020
Detailed organic geochemical and carbon isotopic (δ13C and Δ14C) analyses are performed on permafrost deposits affected by coastal erosion (Herschel Island, Canadian Beaufort Sea) and adjacent marine sediments (Herschel Basin) to understand the fate of ...
H. Grotheer, V. Meyer, T. Riedel, G. Pfalz, L. Mathieu, J. Hefter, T. Gentz, H. Lantuit, G. Mollenhauer, M. Fritz   +9 more
doaj   +1 more source

On the astronomical origin of the Hallstatt oscillation found in radiocarbon and climate records throughout the Holocene

, 2016
An oscillation with a period of about 2100-2500 years, the Hallstatt cycle, is found in cosmogenic radioisotopes (C-14 and Be-10) and in paleoclimate records throughout the Holocene. Herein we demonstrate the astronomical origin of this cycle.
Bianchini, Antonio, Milani, Franco, Ortolani, Sergio, Scafetta, Nicola   +3 more
core   +1 more source

Eye makeup in Northwestern Iran at the time of the Assyrian Empire: a new kohl recipe based on manganese and graphite from Kani Koter (Iron Age III)

Archaeometry, EarlyView.
Abstract Kohl was ubiquitous in ancient Egypt and the Middle East, and routinely included among the toiletries deposited in burials. For Egypt, kohl recipes are increasingly well‐studied and known to use a range of inorganic and organic ingredients. Although these are often lead‐based, manganese‐ and silicon‐rich compounds are also attested.
Silvia Amicone, Baptiste Solard, Shelir Amelirad, Eghbal Azizi, Lara Maritan, Maxime Rageot, Christoph Berthold, Karen Radner   +7 more
wiley   +1 more source

El Abrigo de Guachos (Sepúlveda, Segovia): un nuevo yacimiento del Neolítico antiguo en el interior peninsular [PDF]

Munibe Antropologia-Arkeologia
En este trabajo se presenta el descubrimiento de un nuevo yacimiento del Neolítico antiguo en el interior peninsular (cuenca del Duero), a partir de los resultados preliminares de la campaña de sondeo realizada en septiembre de 2023. El Abrigo de Guachos
David Álvarez-Alonso, María de Andrés-Herrero, Enrique Cerrillo-Cuenca, Luis Martínez Chamizo, Laura Barrado Rodríguez, Rosario Cebrián Fernández, Verónica Estaca Gómez, Fermín de los Reyes Gómez   +7 more
doaj   +1 more source

¹⁴C AMS at SUERC: improving QA data from the 5 MV tandem AMS and 250 kV SSAMS [PDF]

, 2010
In 2003, a National Electrostatics Corporation (NEC) 5MV tandem accelerator mass spectrometer was installed at SUERC, providing the radiocarbon laboratory with 14C measurements to 4–5‰ repeatability.
Anderson, R., Ascough, P.L., Cook, G., Dougans, A., Dunbar, E., Freeman, S.P.H.T., Maden, C., Muir, G.K.P., Naysmith, P., Russell, N., Schnabel, C., Scott, E.M., Wilcken, K., Xu, S.   +13 more
core   +1 more source

Tracing Maize History in Northern Iroquoia through Radiocarbon Date Summed Probability Distributions Data

, 2022
John P. Hart
openalex   +1 more source

14C Blank Assessment in Small-Scale Compound-Specific Radiocarbon Analysis of Lipid Biomarkers and Lignin Phenols

Radiocarbon: An International Journal of Cosmogenic Isotope Research, 2019
Compound-specific radiocarbon (14C) dating often requires working with small samples of < 100 µg carbon (µgC). This makes the radiocarbon dates of biomarker compounds very sensitive to biases caused by extraneous carbon of unknown composition, a ...
Shuwen Sun, V. Meyer, A. Dolman, M. Winterfeld, J. Hefter, W. Dummann, C. McIntyre, D. Montluçon, N. Haghipour, L. Wacker, T. Gentz, T. S. van der Voort, T. Eglinton, G. Mollenhauer   +13 more
semanticscholar   +1 more source

What can lithics tell us about food production during the transition to farming? Exploring harvesting practices and cultural changes during the neolithic in Southwest Asia: a view from Qminas (north‐western Syria)

Archaeometry, EarlyView.
Abstract This study examines the continuity and change in harvesting practices between the Late Pre‐Pottery Neolithic B (LPPNB) and the Early Pottery Neolithic at Qminas, north‐western Levant, through a traceological analysis of flint sickles. By combining qualitative traceological analysis with quantitative functional approaches, we demonstrate that ...
Fiona Pichon, Osamu Maeda, Juan José Ibáñez Estévez, Patricia Anderson   +3 more
wiley   +1 more source

Radiocarbon investigation of a superlative grandidier baobab, the big reniala of Isosa [PDF]

, 2019
The article discloses the accelerator mass spectrometry (AMS) radiocarbon dating results of the Big Reniala of Isosa, which is a massive Grandidier baobab (Adansonia grandidieri Baill.) of Madagascar.
Bodis, Jenö, Danthu, Pascal, Leong Pock Tsy, Jean-Michel, Patrut, Adrian, Patrut, Roxana Teodora, Rakosy, Laszlo, Ratiu, Ileana-Andreea, Von Reden, Karl F., Woodborne, Stephan   +8 more
core   +3 more sources