Igneous Rock Textures and Classification Based on Grain Size and Shape - Igneous Petrology

Explore the fascinating world of igneous rock textures and classification in this comprehensive 23-minute video. Learn about the importance of textures in igneous rock classification, the difference between structures and textures, and how thermodynamics controls igneous rock formation. Discover how nucleation and growth rates affect grain sizes, and understand the classification of igneous textures based on grain size and shape. Delve into concepts such as Bowen's reaction series, Gibbs free energy, and crystal formation processes. Gain valuable insights into phaneritic, aphanitic, pegmatitic, and glassy textures, as well as euhedral and anhedral crystals. Enhance your understanding of igneous petrology through this informative and engaging presentation.

What are igneous textures?
Igneous textures vs. structures
How rocks form textures
Gibbs free energy & crystallization
Is crystallization spontaneous?
What controls crystal size?
Grain size rock texture classification
What controls crystal shape?
Grain shape rock texture classification
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