On-demand Webinar – Bone Samples in Archaeology
View our on-demand webinar on Isotope Applications: Bone Samples in Archaeology. Topics include when to use radiocarbon dating versus uranium-thorium dating.
ACRA Webinar on Bones: Isotopes in Dating, Diets and Migration Studies
Bones: Isotopes in Dating, Diets and Migration Studies
Live Webinar: April 14, 2022 – 2:00 PM to 3:30 PM Eastern Time
A highlight on tsunami research: Professor Sam Purkis
A study researchering the dynamics of carbonate stratigraphy and vulnerability of sea life to climate change used a combination of radiocarbon and U-Th dating of corals and cemented sediments to date an incipient submarine landslide
Corals: A marine recorder of climate variability
Before a time series of climate variability can be developed, the coral growth bands must first be dated. Corals can be dated using radiocarbon dating, U-Th dating and/or Sr-Sr dating.
Sediments Webinar: Dating & Environmental Reconstructions
Isobar Science and Beta Analytic’s webinar on sediments focuses on dating & environmental reconstructions. This complimentary webinar takes place on December 2, 2021 at 12:00 PM Eastern Time (US and Canada).
Analysing lake sediment cores: from dating to paleoclimate reconstructions
Sediments used for climate and environmental reconstructions come in many different forms (including lacustrine, marine, peat, terrestrial and aeolian deposits) and can be characterized by their grain size, shape, sedimentary facies, chemical and biological composition and accumulation/sedimentation rate.
How to choose optimal samples for U-Th dating
U-Th dating can be used to date various sample types including cave deposits/speleothems, corals, shells, bones and carbonate layers in sedimentary successions.
Bones Webinar: Isotopes in Dating, Diets and Migration Studies
Isobar Science and Beta Analytic’s bones webinar focuses on C-14 and U-Th methods for bone samples. Topics include optimal sample types, common issues, and how to prepare bone samples for isotopic analysis.
Geochemistry: Stable and Radioactive Isotopes
In geochemical research, stable and unstable isotopes are used to understand the chemistry behind natural processes. Isotopes are different forms of a single element, with differing numbers of neutrons within their nucleus, resulting in different atomic masses.
Developing Chronologies for Reconstructing Past Climates
Paleoclimate archives are generally dated using two main methods: radiocarbon and uranium-thorium dating. 14C dating tends to be more accurate, however, it can only be used on samples that are less than around 50,000 years old. Whereas U-Th dating can be used for the last 500,000 years.