Scientific method
Electron microprobe analysis
Also known as EPMA
Focuses an electron beam on a polished sample and measures the characteristic X-rays emitted, giving the composition of a spot a few micrometres across. It is what makes it possible to analyse a single mineral grain rather than a whole rock.
Classification
- method class
- experimental
- access
- indirect
In the knowledge graph
- Electron microprobe analysis provides evidence for Albite
- Electron microprobe analysis provides evidence for Element partitioning
Record last updated 2026-09-06. Corrections follow the published corrections policy; superseded claims are retained, never silently edited.