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Cosmogenic ¹⁰Be surface exposure dating
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Description
Standard method for determining exposure ages of rock surfaces using in-situ produced cosmogenic ¹⁰Be nuclides measured by accelerator mass spectrometry. Involves sample collection, quartz purification, chemical processing, and AMS measurement.
Typical Equipment
- sledgehammer
- chisel
- portable rotary drill
- compass
- clinometer
- rare earth hand magnet
- Outotec magnetic roll separator
- quartz crucible
- gas torch
- accelerator mass spectrometer
Output Measurements
- exposure ages in years
- ¹⁰Be concentrations