U-Th Dating

Gypsum: Isotopes & Dating

Gypsum is a relatively soft and common mineral made up of hydrous
calcium sulfate (CaSO4-2H2O). Whilst pure gypsum crystals are transparent
(often with a pearly or vitreous luster), they can appear opaque and colored
due to the inclusion of other materials (e.g. sand).

Quality Considerations for Bone Samples

Bones and teeth are relatively common within the archaeological and paleontological record due to the tendency for high preservation after burial.

Best Practices When Selecting Bone Samples

Bones and teeth can be used for a variety of different isotopic analyses, including Oxygen, Strontium, Lead, Neodymium, Carbon, Nitrogen and dating (radiocarbon and in some cases Uranium-Thorium). There are important requirements for bone samples to ensure they produce accurate results.

Cave Deposits: Chronology Development & Environmental Reconstruction

Caves are natural intact cavities found in many different landscapes which have been accessible to humans and animals for millions of years.

Archaeological investigations of caves

Caves – or rock shelters – have been studied by archaeologists for the past two centuries, with specific focus on the investigation of prehistoric cave paintings, ceremonial use and other evidence of occupation.

Isotopes & Dating in Marine Environments

There are numerous different options for dating marine samples, each with applicable timespans, levels of certainty and limitations.

Free Webinar on Marine Environments

Isobar Science and Beta Analytic invite researchers interested in isotopes and dating to view this FREE webinar: Isotopes & Dating in Marine Enviornments

U-Th Dating in Archaeology

Uranium-Thorium (U-Th) dating is a radioactive method to date a variety of carbonate samples, including corals, cave deposits, cave artwork, shells, foraminifera and bone.

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