Forensic Petrology
Definition
The application of petrological methods (rock description, thin-section analysis, provenance tracing) to forensic questions. A forensic petrologist might match a rock fragment on clothing to a specific geological formation or quarry source.
- Methods
- Rock description, thin-section analysis, provenance tracing
- Parent field
- Petrology, applied forensically
- Typical use
- Matching a rock fragment to a specific quarry or formation
- Related field
- Forensic geology
Common questions
How specific can a petrological source match actually be?+
Thin-section mineralogy and texture can sometimes narrow a rock fragment to a single quarry or a small geographic formation, but the achievable specificity depends heavily on how geologically distinctive that rock type is compared with surrounding regions.
What distinguishes forensic petrology from general forensic geology?+
Forensic geology covers a broad range of earth materials including soil and sediment, while forensic petrology narrows in specifically on rock and mineral samples analysed through petrological techniques such as thin sectioning.
Related terms
- Anthropogenic Particles
- Particles with geological compositions that were created or modified by human industrial activity: coal fly ash, slag, concrete aggregate, crushed brick, and...
- Locard's Exchange Principle Applied to Geology
- When a person contacts an earth surface, geological material transfers bidirectionally. The suspect carries material from the scene; the scene receives material...
- Mineral Assemblage
- The collection of mineral species present in a sample, and their proportions. Assemblages reflect the bedrock that eroded to produce the sediment,...
- Pedology
- The scientific study of soil as a natural body, including its formation, morphology, and classification. Forensic soil science applies pedological methods; forensic...
- Reference Population
- The set of samples representing the range of materials that could plausibly have produced the questioned sample, in the absence of the...