noun
- plural of petrography; the scientific study and description of rocks, especially their mineral composition and texture
Usage: geological term
Examples
- The geology students compared different petrographies from various mountain ranges.
- Modern petrographies rely heavily on microscopic analysis of thin rock sections.
- The professor’s research focused on igneous petrographies of volcanic regions.
- Advanced petrographies require knowledge of crystallography and mineralogy.
- The lab contained extensive petrographies documenting local rock formations.