Results 11 to 20 of about 6,889 (226)

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

Лëд 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, E. A. Slagoda, V. V. Rogov, V. I. Butakov, A. V. Lupachev, A. O. Kuznetsova, G. V. Simonova   +6 more
doaj   +1 more source

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

Studia 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, Laszlo RAKOSY, Roxana T. PATRUT, Victor BOCOS-BINTINTAN, Ileana-Andreea RATIU, Jenö BODIS, Stephan WOODBORNE   +6 more
doaj   +1 more source

Bayesian age models and stacks: combining age inferences from radiocarbon and benthic δ¹⁸O stratigraphic alignment [PDF]

Climate of the Past, 2023
Previously developed software packages that generate probabilistic age models for ocean sediment cores are designed to either interpolate between different age proxies at discrete depths (e.g., radiocarbon, tephra layers, or tie points) or perform a ...
T. Lee, D. Rand, L. E. Lisiecki, G. Gebbie, C. Lawrence   +4 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

Лëд 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, A. A. Maslakov, Yu. K. Vasil'chuk, A. V. Baranskaya, N. V. Belova, A. C. Vasil'chuk, F. A. Romanenko   +6 more
doaj   +1 more source

RADIOCARBON INVESTIGATION OF TWO LARGE AFRICAN BAOBABS FROM KIZIMKAZI, ZANZIBAR, TANZANIA

Studia Universitatis Babes-Bolyai Chemia, 2022
The article reports the AMS (accelerator mass spectrometry) radiocarbon dating results of Kizimkazi Big tree and Kizimkazi II baobab, two large African baobabs from Zanzibar, Tanzania.
Adrian PATRUT, Roxana T. PATRUT, Laszlo RAKOSY, Ileana-Andreea RATIU, Jenö BODIS, Nassor Mahmoud NASSOR, Karl F. VON REDEN   +6 more
doaj   +1 more source

Modelling medieval masonry construction: taxa-specific and habitat-contingent Bayesian techniques for the interpretation of radiocarbon data from Mortar-Entrapped Relict Limekiln Fuels

Heritage Science, 2021
Using data from simulated and actual case studies, this paper assesses the accuracy and precision of Bayesian estimates for the constructional date of medieval masonry buildings, generated from the radiocarbon evidence returned by different assemblages ...
Mark Thacker
doaj   +1 more source

The organic matter of the buried peat soils on bely island (kara sea)

Бюллетень Почвенного института им. В.В. Докучаева, 2016
The organic matter composition of buried peat horizons from the west coast of White lake (Kara Sea) was investigated using the method of dency-metric fractionation.
Z. S. Artemyeva, A. V. Yurtaev, A. L. Alexandrovskiy, E. P. Zazovskaya   +3 more
doaj   +1 more source

Radiocarbon dating and its applications in Chinese archeology: An overview

Frontiers in Earth Science, 2023
Radiocarbon dating is a well-established chronometric technique that has been widely employed in Chinese archeology since the first radiocarbon laboratory started operating in the Institute of Archaeology at the Chinese Academy of Sciences in 1965.
Xianglong Chen, Xianglong Chen
doaj   +1 more source

How old are large Brazil-nut trees (Bertholletia excelsa) in the Amazon? Que idade podem alcançar as castanheiras (Bertholletia excelsa) da Amazônia?

Scientia Agricola, 1994
The age of a large Brazil-nut tree (Bertholletia excelsa) is measured by radiocarbon dating, and a discussion is made about their importance in the Amazon rain-forest ecosystem.A idade de uma castanheira (Bertholletia excelsa) grande é medida por datação
P.B. de Camargo, R. de P. Salomão, S. Trumbore, L.A. Martinelli   +3 more
doaj   +1 more source

Changes in the radiocarbon reservoir age in Lake Xingyun, Southwestern China during the Holocene.

PLoS ONE, 2015
Chronology is a necessary component of paleoclimatology. Radiocarbon dating plays a central role in determining the ages of geological samples younger than ca. 50 ka BP.
Aifeng Zhou, Yuxin He, Duo Wu, Xiaonan Zhang, Can Zhang, Zhonghui Liu, Junqing Yu   +6 more
doaj   +1 more source