Results 91 to 100 of about 10,541 (259)

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

open access: yesPLoS 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   +6 more
doaj   +1 more source

An Archaeometric Approach to Reveal Organic Compounds via GC‐MS Analyses of Two Discovered Incense Burners at Daba Al‐Bayah

open access: yesArchaeometry, EarlyView.
ABSTRACT This study focuses on two terracotta incense burners discovered in the Daba Al‐Bayah necropolis in the Musandam Peninsula (Oman), associated with an Iron Age collective tomb (LCG‐2). Through gas chromatography–mass spectrometry (GC‐MS), the organic residues preserved within these artifacts were analyzed to investigate their use and ...
Francesco Genchi   +3 more
wiley   +1 more source

Morphometric affinities and direct radiocarbon dating of the Toca dos Coqueiros' skull (Serra da Capivara, Brazil). [PDF]

open access: yesSci Rep, 2022
Menéndez LP   +6 more
europepmc   +1 more source

Dealing With Inbuilt Age: A Bayesian Approach to Radiocarbon Dating of Rice, Bamboo and Charcoal From Non Ban Jak, Thailand

open access: yesArchaeometry, EarlyView.
ABSTRACT New radiocarbon determinations from rice grains and bamboo have been obtained from Non Ban Jak, Northeast Thailand. These, along with charcoal, date a late Iron Age building sequence. The results come from short‐lived species and charcoal with potential inbuilt age. We built a series of Bayesian models to obtain a reliable chronology.
C. F. W. Higham, T. F. G. Higham
wiley   +1 more source

COMBINING ANCIENT DNA AND RADIOCARBON DATING DATA TO INCREASE CHRONOLOGICAL ACCURACY. [PDF]

open access: yesJ Archaeol Sci, 2021
Sedig JW   +4 more
europepmc   +1 more source

Safety pharmacology of acute mescaline administration in healthy participants

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Aims Psychedelics, including mescaline, may serve as novel treatments for depression and anxiety. However, data is scarce on the safety of mescaline. Methods The present pooled analysis included two double‐blind, randomized, placebo‐controlled studies with a total of 48 participants and 96 mescaline administrations. Single oral‐dose administrations (n =
Aaron Klaiber   +4 more
wiley   +1 more source

Multi-Analytical Characterization and Radiocarbon Dating of a Roman Egyptian Mummy Portrait. [PDF]

open access: yesMolecules, 2021
Dal Fovo A   +5 more
europepmc   +1 more source

Radiocarbon Dating of Soils: Database Contribution By Bonn and Hamburg [PDF]

open access: bronze, 1996
H. W. Scharpenseel   +3 more
openalex   +1 more source

The morphosedimentary record of glacial to postglacial environmental changes in West Wiyâshâkimî impact crater lake and adjacent areas, northern Québec, Canada

open access: yesBoreas, EarlyView.
Crater lakes in core regions of former ice sheets have the potential to preserve long‐term sedimentary archives that are otherwise rare in glaciated landscapes due to pervasive glacial erosion. Lake Wiyâshâkimî, an impact crater lake located in the inner core of the Québec‐Labrador Dome of the Laurentide Ice Sheet, provides a rare example of such a ...
Etienne Brouard, Patrick Lajeunesse
wiley   +1 more source

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