Results 31 to 40 of about 14,612,070 (286)

Pedigree-based Bayesian modelling of radiocarbon dates.

open access: yesPLoS ONE, 2022
Within the last decade, archaeogenetic analysis has revolutionized archaeological research and enabled novel insights into mobility, relatedness and health of past societies.
Ken Massy   +3 more
doaj   +1 more source

The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (0–55 cal kBP)

open access: yesRadiocarbon: An International Journal of Cosmogenic Isotope Research, 2020
Radiocarbon (14C) ages cannot provide absolutely dated chronologies for archaeological or paleoenvironmental studies directly but must be converted to calendar age equivalents using a calibration curve compensating for fluctuations in atmospheric 14C ...
P. Reimer   +41 more
semanticscholar   +1 more source

Reconstruction of mean January air temperature of Holocene in the lower Kolyma River region

open access: yesЛëд и снег, 2022
The object of study is ice wedges at 10 sites in the lower Kolyma River. The Holocene age of ice wedges is determined on the basis of radiocarbon dating of the enclosing sediments and location of ice wedges in alases, floodplains and lacustrine-paludal ...
N. A. Budantseva, Yu. K. Vasil’chuk
doaj   +1 more source

Reconstruction of the mean January air temperature in the Early Holocene on the eastern coast of Chukotka

open access: yesЛëд и снег, 2023
The investigation is concerned with the Early Holocene syngenetic massive wedge ice exposed in the outcrop of a polygonal peatland in the upper part of the third marine terrace near Lorino settlement on the eastern coast of Chukotka.
N. A. Budantseva   +4 more
doaj   +1 more source

Marine20—The Marine Radiocarbon Age Calibration Curve (0–55,000 cal BP)

open access: yesRadiocarbon: An International Journal of Cosmogenic Isotope Research, 2020
The concentration of radiocarbon (14C) differs between ocean and atmosphere. Radiocarbon determinations from samples which obtained their 14C in the marine environment therefore need a marine-specific calibration curve and cannot be calibrated directly ...
T. Heaton   +15 more
semanticscholar   +1 more source

RADIOCARBON INVESTIGATION OF TWO OLD ELMS FROM ROMANIA

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2022
The paper reports the AMS (accelerator mass spectrometry) radiocarbon investigation results of two superlative elms from Romana, the very large field elm of Calafat, with a wood volume of 85 m3, and the wych elm of Sadova.
Adrian PATRUT   +7 more
doaj   +1 more source

RADIOCARBON DATING OF THE HISTORIC EMPEROR’S BEECH FROM MUNCEL, BAIA DE ARIES, ROMANIA

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2022
The article reports the AMS (accelerator mass spectrometry) radiocarbon dating results of the historic Emperor’s Beech (Fagul Împăratului) from Muncel, Baia de Arieş, Romania.
Adrian PATRUT   +6 more
doaj   +1 more source

Heterogeneous ices in ice wedges structure on the Pur-Taz interfluve peatlands of the north of West Siberia

open access: yesЛëд и снег, 2020
Structure of arctic peatlands with massive ice and structure-forming ice were studied in drained lake («khasyrey») of the Pur-Taz interfluves (the north of West Siberia). The period of accumulation of two-meter thickness of the peat was established to be
Ya. V. Tikhonravova   +6 more
doaj   +1 more source

AMS RADIOCARBON DATING OF THE LARGE PEDUNCULATE OAK OF MERCHEAŞA, ROMANIA

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2021
The paper reports the AMS (accelerator mass spectrometry) radiocarbon dating results of the large pedunculate oak of Mercheaşa, Romania, which has a circumference of 10.16 m.
Adrian PATRUT   +6 more
doaj   +1 more source

Winter air temperature in the early and middle Holocene on the eastern coast of Daurkin Peninsula, Chukotka, reconstructed from stable isotopes of ice wedges

open access: yesЛëд и снег, 2020
The object of research is the Holocene massive ice veins on the Eastern coast of the Daurkin Peninsula, the easternmost part of the Chukotka. Peat bogs with ice veins occur on the surface of marine terraces (near Uelen and Lorino settlements) and on ...
N. A. Budantseva   +6 more
doaj   +1 more source

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