About this document
Igneous Rock Classification Overview by EmmanuelAdekunleKelly is a document available to read on EtoBox.
Igneous rocks are classified based on various criteria including fabric, field relations, mineralogical composition, silica concentration, and alumina saturation. Key classifications include phaneritic and aphanitic fabrics, volcanic and plutonic origins, and categories such as felsic, mafic, and ultramafic based on mineral content. Additional classifications consider the presence of quartz and feldspathoids, as well as the alumina saturation index to further categorize these rocks.
- Author
- EmmanuelAdekunleKelly
- Language
- EN