Results 1 to 10 of about 7,054 (245)

Geochronology of the Upper Ice Complex (Yedoma) exposed in the Batagay Megaslump, East Siberia

open access: yesArctic, Antarctic, and Alpine Research
The Batagay Megaslump in eastern Siberia exposes one of the oldest permafrost archives and provides insights into Beringian paleoenvironments. However, its geochronology calls for improvement given known difficulties with permafrost dating and current ...
Thomas Opel   +11 more
doaj   +1 more source

Radiocarbon Investigation of the Solitary African Baobab from Dalkut, Dhofar, Oman

open access: yesStudia Universitatis Babes-Bolyai Chemia
The article discloses the AMS (accelerator mass spectrometry) radiocarbon dating results of the well-known African baobab of Dalkut, Dhofar Governorate, Oman. The investigation shows that the baobab has a cluster structure and is composed of 3 perfectly
Adrian PATRUT   +9 more
doaj   +1 more source

Collagen Fingerprinting: A New Screening Technique for Radiocarbon Dating Ancient Bone.

open access: yesPLoS ONE, 2016
Collagen is the dominant organic component of bone and is intimately locked within the hydroxyapatite structure of this ubiquitous biomaterial that dominates archaeological and palaeontological assemblages.
Virginia L Harvey   +4 more
doaj   +1 more source

A dataset of radiocarbon dates from Holarctic mammal collagen purified with high-quality chemistry

open access: yesScientific Data
Radiocarbon dates from megafaunal remains provide insights into climatic and anthropogenic factors shaping past ecosystems. Chronologies have advanced through rigorous chemical purification (pretreatment) of fossil vertebrate collagen for accelerator ...
Salvador Herrando-Pérez   +4 more
doaj   +1 more source

The importance of shell: Redating of the To'aga site (Ofu Island, Manu'a) and a revised chronology for the Lapita to Polynesian Plainware transition in Tonga and Sāmoa.

open access: yesPLoS ONE, 2019
Radiocarbon dating Pacific archaeological sites is fraught with difficulties. Often situated in coastal beach ridges or sand dunes, these sites exhibit horizontal and vertical disturbances, datable materials such as wood charcoal are typically highly ...
Fiona Petchey, Patrick V Kirch
doaj   +1 more source

Investigations on an Ancient Mortar from Ulpia Traiana Sarmizegetusa Archaeological Site, Romania

open access: yesApplied Sciences
A fragment of mortar from the pedestal ruin belonging to the central statue in Forum Vetus, Ulpia Traiana archaeological site, Romania, was investigated.
Zeno Dorian Ghizdavet   +11 more
doaj   +1 more source

Near-infrared hyperspectral imaging to map collagen content in prehistoric bones for radiocarbon dating. [PDF]

open access: yesCommun Chem, 2023
Malegori C   +10 more
europepmc   +1 more source

Two-step movement of tsunami boulders unveiled by modified viscous remanent magnetization and radiocarbon dating. [PDF]

open access: yesSci Rep, 2022
Sato T   +8 more
europepmc   +1 more source

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