Obsidian Hydration Dating Calculator

Thickness to Age.

Rim Thickness (x)

μm

Hydration Constant (k)

μm²/yr

Context

Archaeological calculations often rely on region-specific constants and calibration curves. Ensure inputs closely match your site's parameters.

Precision

Results are estimates. For radiometric dating, standard deviations and calibration software (OxCal, Calib) provide definitive ranges.

Found this tool helpful? Share it with your friends!

About Obsidian Hydration Dating Calculator

The Obsidian Hydration Dating Calculator is an essential tool for archaeologists, anthropologists, and cultural resource managers seeking rapid, preliminary age estimations for obsidian artifacts. This calculator streamlines the process of obsidian hydration dating by allowing users to input the measured thickness of the hydration rim. Based on the well-established principle that obsidian absorbs atmospheric water at a predictable rate, forming a visible hydration layer, the tool translates this measurement into an approximate age. It provides a quick and accessible method for field assessments, preliminary site analyses, and informing further research, significantly enhancing efficiency in archaeological investigations without requiring complex manual calculations. This tool is invaluable for initial chronological placement of artifacts.