Rubidium-strontium dating
Datación rubidio-estroncio
- Date
- 1943 · confidence high
- Place
- Berlin, Germany
- Credited to
- Otto Hahn y Fritz Strassmann
- Field
- Cosmos & Earth
What it is
A radiometric dating method that calculates the age of rocks and minerals from the decay of rubidium-87 into strontium-87, which has a half-life of about 49 billion years.
What it led to
- Dating of very ancient igneous and metamorphic rocks
- Independent cross-check against other radiometric methods
- Refinement of solar-system geochronology