Results 61 to 70 of about 66,356 (291)

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

Ascertaining the nature and timing of mire degradation : using palaeoecology to assist future conservation management in Northern England [PDF]

, 2017
This study was initiated under contract VT0419 from English Nature (Natural England) to CECQR. In 2015, additional funding was provided by the Yorkshire Peat Partnership, for 210Pb dating, to refine age–depth estimates.
Alistair Crowle, Dmitri Mauquoy, Frank Chambers, John Daniell, Julia McCarroll, Julia Webb, Nicole Sanderson, null null, Phil Toms, Tim Thom   +9 more
core   +3 more sources

A twofold development and demise of pine stands in the Netherlands during the Allerød interstadial: two hypotheses to explain a link to climate change recorded in Greenland ice

Journal of Quaternary Science, EarlyView.
ABSTRACT The second half of the Allerød interstadial in the Netherlands is characterised by pine forest. Excavated trunks of 165 pine trees at Leusden‐Den Treek in the central Netherlands (LETR16) were dated by dendrochronology and radiocarbon. Two chronologically separated pine forest phases occurred during relatively warm periods as recorded in ...
Wim Z. Hoek, Jos Bazelmans, Otto Brinkkemper, Petra Doeve, Bas van Geel   +4 more
wiley   +1 more source

Purification of hydroxyproline for small-scale radiocarbon dating verified using archaeological bone collagen

Progress in Earth and Planetary Science
We developed a novel technique for the accurate radiocarbon dating of single amino acids from archaeological human and animal remains. Despite the extensive use of bulk collagen for radiocarbon dating of archaeological bones, obtaining accurate dates can
Yu Itahashi, Yoshinori Takano, Yoshito Chikaraishi, Nanako O. Ogawa, Naoto F. Ishikawa, Naohiko Ohkouchi, Masako Yamane, Yusuke Yokoyama, Minoru Yoneda   +8 more
doaj   +1 more source

Methodological aspects about the use of the radicarbon dating in historical time sites [PDF]

Munibe Antropologia-Arkeologia, 2009
In this paper basic concepts concerning radiocarbon dating and Accelerator Mass Spectrometry (AMS) technique, and specifically the Centre for Isotopic Research on Cultural and Environmental heritage (CIRCE Laboratory) AMS facility, will be given. Problem
Lubritto, Carmine
doaj  

Data set on sedimentology, palaeoecology and chronology of Middle to Late Pleistocene deposits on the Taimyr Peninsula, Arctic Russia

Data in Brief, 2019
This Data in Brief paper contains data (including images) from Quaternary sedimentary successions investigated along the Bol'shaya Balakhnya River and the Luktakh–Upper Taimyra–Logata river system on southern Taimyr Peninsula, NW Siberia (Russia). Marine
Per Möller, Ívar Örn Benediktsson, Johanna Anjar, Ole Bennike, Martin Bernhardson, Svend Funder, Lena M. Håkansson, Geoffrey Lemdahl, Joseph M. Licciardi, Andrew S. Murray, Marit-Solveig Seidenkrantz   +10 more
doaj   +1 more source

Decoupling climate and human impacts on the nitrogen cycle during the Irish Bronze Age

Journal of Quaternary Science, EarlyView.
ABSTRACT Disentangling climate variability and human activity in past nitrogen cycling is key to understanding ecosystems. Previous studies in Ireland observed a widespread, permanent shift in terrestrial nitrogen cycling during Later Prehistory, potentially linked to intensifying land‐use.
Sarah Ferrandin, Gill Plunkett, Neil Ogle   +2 more
wiley   +1 more source

Early deglaciation history of the southeastern Baffin Island shelf (Eastern Canadian Arctic Archipelago)

Journal of Quaternary Science, EarlyView.
ABSTRACT During the last glacial period, the Laurentide Ice Sheet (LIS) was the largest terrestrial ice sheet on Earth. Its evolution since the Last Glacial Maximum profoundly influenced Earth's geodynamics and surface processes. Investigating the past dynamics of the LIS provides critical insights into how contemporary ice sheets may respond to ...
Alexis P. Belko, Alexandre Normandeau, Patrick Lajeunesse, Audrey Limoges   +3 more
wiley   +1 more source

Radiocarbon Dating of Magnesian Mortars: The Case of San Salvatore Church in Massino Visconti, Piedmont, Italy

Applied Sciences
This study presents a comprehensive analysis and radiocarbon dating of historical mortar and plaster samples from the San Salvatore—Massino Visconti complex in Piedmont, Northern Italy.
Giulia Ricci, Michele Secco, Fabio Marzaioli, Isabella Passariello, Filippo Terrasi, Gilberto Artioli   +5 more
doaj   +1 more source

Concepts of probability in radiocarbon analysis

Documenta Praehistorica, 2011
In this paper we explore the meaning of the word probability, not in general terms, but restricted to the field of radiocarbon dating, where it has the meaning of ‘dating probability assigned to calibrated 14C-ages’.
Bernhard Weninger, Kevan Edinborough, Lee Clare, Olaf Jöris   +3 more
doaj   +1 more source