Geological facies concept
Concepto de facies geológica
- Date
- 1838 · confidence high
- Place
- Swiss Jura (Porrentruy), Switzerland
- Credited to
- Amanz Gressly
- Field
- Cosmos & Earth
What was discovered
While mapping the Jura mountains, Gressly introduced the term "facies" to describe how the appearance, composition and fossil content of a single rock layer change according to where it formed, laying a foundation of modern stratigraphy against the old Neptunist view.
What it led to
- Facies analysis as a standard stratigraphic tool
- Reconstruction of ancient depositional environments (palaeogeography)