Miall, Andrew D. Department of Geology, University of Toronto, Ontario, Canada.
Selverstone, Jane Department of Earth and Planetary Sciences, Hoffman Laboratory, Harvard University, Cambridge, Massachusetts.
Last reviewed:November 2019
- Sedimentary Facies
- Facies analysis
- Facies assemblages
- Facies models
- Facies maps
- Metamorphic Facies
- Facies names and boundaries
- Facies series
- Pressure–temperature paths
- Related Primary Literature
- Additional Reading
Any observable attribute of rocks, such as overall appearance, composition, or conditions of formation, and changes that may occur in these attributes over a geographic area. The term “facies” is widely used in connection with sedimentary rock bodies, but is not restricted to them. In general, facies are not defined for sedimentary rocks by features produced during weathering, metamorphism, or structural disturbance. In metamorphic rocks specifically, however, facies may be identified by the presence of minerals that denote degrees of metamorphic change.
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