Timothy D J Knowles

Datos Biográficos

ID	218182
NOMBRE	Timothy D J Knowles
NOMBRES	Timothy D J
APELLIDO	Knowles
FIRMA	KNOWLES T D J
AFILIACIONES	University of Bristol
ORCID	0000-0003-4871-5542
VERIFICADO	Sí
TOTAL DE OBRAS	10
TOTAL DE CITAS	28
TOTAL COMO AUTOR	10
TOTAL COMO EDITOR	0
PRIMER AÑO DE PUBLICACIÓN	2018
AÑO MÁS RECIENTE DE PUBLICACIÓN	2026
ÍNDICE H	4

Exploring local and regional dynamics in the Bronze Age Kythera Island, Greece, through an analytical approach on archaeological data from Kataphygadi cave
Open AccessKonstantinos P Trimmis, Stavroula Fouriki et al.ARTICLEJournal of Archaeological Science…2026
Evidence that beekeeping and Beeswax by-products are present in the Island of Kythera since the 3rd millenia BCE. • Evidence of the importance of beeswax related products for cults and mortuary practices. • Evidence of continuous production of local pottery in Kythera throughout the Bronze Age. • Strontium and Oxygen data from Bronze Age skeletal remains from Kataphygadi cave. Interactions between islands and mainland has long been the subject of…
Chemical and isotopic analyses confirm dietary change marks the Early Medieval Slavic expansion into Central and Eastern Europe
Open AccessJiří Macháček, J Dunne et al.ARTICLEJournal of Archaeological Science2025Citada por: 1Referencias: 5
Radiocarbon dating of lipids preserved in pottery vessels
Open AccessEmmanuelle Casanova, Timothy D J Knowles et al.ARTICLERadiocarbon2024Citada por: 2Referencias: 2
Pottery vessels played a central role in the processing, storage and transport of animal and plant products by prehistoric and historic peoples with their chemical residues surviving for thousands of years. Accurate radiocarbon dating of archaeological pottery vessels by isolating reliable sources of carbon relating to the use of pots has long been a major challenge, but is now possible using compound-specific radiocarbon analysis of absorbed org…
Direct 14C dating of equine products preserved in archaeological pottery vessels from Botai and Bestamak, Kazakhstan
Open AccessEmmanuelle Casanova, Timothy D J Knowles et al.ARTICLEArchaeological and Anthropological…2022Citada por: 8Referencias: 37
Direct and accurate radiocarbon dating of lipid residues preserved in ceramics is a recently established method that allows direct dating of specific food products and their inception in human subsistence strategies. The method targets individual fatty acids originating from animal fats such as ruminant dairy, ruminant adipose, non-ruminant adipose and aquatic fats. Horse lipid residues found in Central Asian pottery vessels are also directly dat…
Compound-specific radiocarbon dating of lipid residues in pottery vessels
Open AccessEmmanuelle Casanova, Timothy D J Knowles et al.ARTICLEJournal of Archaeological Science2021Citada por: 4Referencias: 3
Generation of Two New Radiocarbon Standards for Compound-Specific Radiocarbon Analyses of Fatty Acids From Bog Butter Finds
Open AccessEmmanuelle Casanova, Timothy D J Knowles et al.ARTICLERadiocarbon2021Citada por: 1Referencias: 23
The analysis of processing standards alongside samples for quality assurance in radiocarbon ( 14 C) analyses is critical. Ideally, these standards should be similar both in nature and age to unknown samples. A new compound-specific approach was developed at the University of Bristol for dating pottery vessels using palmitic and stearic fatty acids extracted from within the clay matrix and isolated by preparative capillary gas chromatography. Obta…
Anta 1 de Val da Laje – the first direct view of diet, dairying practice and socio-economic aspects of pottery use in the final Neolithic of central Portugal
Open AccessDarko Stojanovski, Mélanie Roffet-Salque et al.ARTICLEQuaternary International2020
Compound-Specific Radiocarbon, Stable Carbon Isotope and Biomarker Analysis of Mixed Marine/Terrestrial Lipids Preserved in Archaeological Pottery Vessels
Open AccessEmmanuelle Casanova, Timothy D J Knowles et al.ARTICLERadiocarbon2020Citada por: 5Referencias: 35
At archaeological sites located on islands or near the coast, the potential exists for lipid extracts of potsherds to contain fatty acids (FA) from both aquatic and terrestrial organisms, meaning that consideration must be given to marine reservoir effects (MRE) in radiocarbon ( 14 C) analyses. Here we studied the site of Bornais (Outer Hebrides, UK) where a local MRE, ΔR of –65 ± 45 yr was determined through the paired 14 C determinations of ter…
Radiocarbon Sample Preparation Procedures and the First Status Report from the Bristol Radiocarbon AMS (BRAMS) Facility
Open AccessTimothy D J Knowles, Paul S Monaghan et al.ARTICLERadiocarbon2019Citada por: 7Referencias: 22
The Bristol Radiocarbon Accelerator Mass Spectrometry (BRAMS) Facility was established at the University of Bristol after the commissioning of our dedicated sample preparation laboratories and the installation and acceptance of the BrisMICADAS AMS in 2016. Routine measurements commenced in mid-2016, once validation was completed for each sample type. Herein, we give an overview of the standard pretreatment methods currently employed in the Facili…
The Beaker phenomenon and the genomic transformation of northwest Europe
Open AccessIñigo Olalde, Selina Brace et al.ARTICLENature2018

Direct 14C dating of equine products preserved in archaeological pottery vessels from Botai and Bestamak, Kazakhstan
Open AccessEmmanuelle Casanova, Timothy D J Knowles et al.ARTICLEArchaeological and Anthropological…2022Citada por: 8Referencias: 37
Direct and accurate radiocarbon dating of lipid residues preserved in ceramics is a recently established method that allows direct dating of specific food products and their inception in human subsistence strategies. The method targets individual fatty acids originating from animal fats such as ruminant dairy, ruminant adipose, non-ruminant adipose and aquatic fats. Horse lipid residues found in Central Asian pottery vessels are also directly dat…
Radiocarbon Sample Preparation Procedures and the First Status Report from the Bristol Radiocarbon AMS (BRAMS) Facility
Open AccessTimothy D J Knowles, Paul S Monaghan et al.ARTICLERadiocarbon2019Citada por: 7Referencias: 22
The Bristol Radiocarbon Accelerator Mass Spectrometry (BRAMS) Facility was established at the University of Bristol after the commissioning of our dedicated sample preparation laboratories and the installation and acceptance of the BrisMICADAS AMS in 2016. Routine measurements commenced in mid-2016, once validation was completed for each sample type. Herein, we give an overview of the standard pretreatment methods currently employed in the Facili…
Compound-Specific Radiocarbon, Stable Carbon Isotope and Biomarker Analysis of Mixed Marine/Terrestrial Lipids Preserved in Archaeological Pottery Vessels
Open AccessEmmanuelle Casanova, Timothy D J Knowles et al.ARTICLERadiocarbon2020Citada por: 5Referencias: 35
At archaeological sites located on islands or near the coast, the potential exists for lipid extracts of potsherds to contain fatty acids (FA) from both aquatic and terrestrial organisms, meaning that consideration must be given to marine reservoir effects (MRE) in radiocarbon ( 14 C) analyses. Here we studied the site of Bornais (Outer Hebrides, UK) where a local MRE, ΔR of –65 ± 45 yr was determined through the paired 14 C determinations of ter…
Compound-specific radiocarbon dating of lipid residues in pottery vessels
Open AccessEmmanuelle Casanova, Timothy D J Knowles et al.ARTICLEJournal of Archaeological Science2021Citada por: 4Referencias: 3
Radiocarbon dating of lipids preserved in pottery vessels
Open AccessEmmanuelle Casanova, Timothy D J Knowles et al.ARTICLERadiocarbon2024Citada por: 2Referencias: 2
Pottery vessels played a central role in the processing, storage and transport of animal and plant products by prehistoric and historic peoples with their chemical residues surviving for thousands of years. Accurate radiocarbon dating of archaeological pottery vessels by isolating reliable sources of carbon relating to the use of pots has long been a major challenge, but is now possible using compound-specific radiocarbon analysis of absorbed org…
Chemical and isotopic analyses confirm dietary change marks the Early Medieval Slavic expansion into Central and Eastern Europe
Open AccessJiří Macháček, J Dunne et al.ARTICLEJournal of Archaeological Science2025Citada por: 1Referencias: 5
Generation of Two New Radiocarbon Standards for Compound-Specific Radiocarbon Analyses of Fatty Acids From Bog Butter Finds
Open AccessEmmanuelle Casanova, Timothy D J Knowles et al.ARTICLERadiocarbon2021Citada por: 1Referencias: 23
The analysis of processing standards alongside samples for quality assurance in radiocarbon ( 14 C) analyses is critical. Ideally, these standards should be similar both in nature and age to unknown samples. A new compound-specific approach was developed at the University of Bristol for dating pottery vessels using palmitic and stearic fatty acids extracted from within the clay matrix and isolated by preparative capillary gas chromatography. Obta…