Target Fresh Exposure Safely
1 hourSample recent bomb or flow toe with stable footing.
Intermediate4-8 hours
Volcano Rock Sampling Guide
Complete volcano rock sampling guide for volcanology practitioners. Step-by-step workflow with 4 stages and related tools. Key tasks: target fresh exposure safely; document gps and context photos; seal and label specimens.
petrologistsfield geologists
Workflow
Document GPS And Context Photos
30 minRecord stratigraphic position and cooling features.
Seal And Label Specimens
45 minDouble-bag powders; note hazard if glass shards present.
Ship With Chain Of Custody
1 hourComplete customs and observatory export permits.
Tools Used
Checklist
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Planning
Preparation
Baseline
Execution
Quality
Tracking
Reference Materials
Sample DocumentationStandard
Every specimen needs unique ID linked to photo and GPS.
DensityFormula
ρ = m/V for porosity and vesicularity estimates.
Sample SizesTable
Lab minimums.
| Analysis | Mass g | Prep |
|---|---|---|
| XRF | 5 | Powder |
| Ar-Ar | 50 | Mineral sep |
Label Everything
Mark parts with position and orientation during disassembly to simplify reassembly.
Quality Standards
Compare results against reference standards or known good examples before proceeding.
PPE Required
Always wear appropriate personal protective equipment — minimum safety glasses and gloves.
Safety Notes
- Fresh flows may remain incandescent beneath crust.
- Wear cut-resistant gloves handling sharp scoria.