'Mafic minerals' presentation slideshows

Weathering and Erosion

487 views • 32 slides

Granites part 2

1.27k views • 17 slides

IGNEOUS ROCKS by Charina Cameron

IGNEOUS ROCKS by Charina Cameron. Part 2: Textures. TEXTURES. Aphanitic (finely crystalline) Porphyritic (phenocrysts) Phaneritic (coarse) . TEXTURES. Cooling rates control crystal sizes. VOLCANIC GLASS.

636 views • 11 slides

IGENEOUS ROCK CLASSIFICATION

IGENEOUS ROCK CLASSIFICATION. Chemically based classification Mineralogy based classification Mineral Contain based classification. A. CHEMICHAL BASED CLASSIFICATION. Stone sour frozen, is frozen when the rock contains 66% more ? SIO. Example of this rock: Granite, Rhyolit .

119 views • 10 slides

Lecture TWELVE Metamorphism of Ultramafic rocks (Metaultramafics)

Lecture TWELVE Metamorphism of Ultramafic rocks (Metaultramafics). What is the Metaultramafics?. Metaultramafics , are metamorphosed ultramafic igneous rocks. Ultramafic rocks are generated in the upper mantle and composed of <90% mafic minerals , which include:

347 views • 8 slides