W10_103_2a_rocks1

W10_103_2a_rocks1 - Glassy Vesicular Igneous Textures...

Info iconThis preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
Rocks The Geologic Dictionary Rocks are made of Minerals (Minerals in Granite)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Soil, sediment, Weathered rock, Regolith Rock Identification is based on: • Composition What minerals make up the rock? • Texture What is the shape, size and orientation of the mineral grains that make up the rock? Major Difference: Crystalline vs. Clastic
Background image of page 2
James Hutton “The Father of Geology” Uniformitarianism Charles Lyell
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Rock Cycle Magma Igneous Rocks Sedimentary Rocks Metamorphic Rocks Sediment Crystallization Melting Metamorphism Lithification Weathering Erosion Transport Deposition
Background image of page 4
Proportions of Rock Types on the Earth igneous & metamorphic rocks = crystalline rocks Igneous Rocks Identification
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Igneous Composition Mafic Felsic Igneous Textures - Crystalline Coarse Grained Fine Grained
Background image of page 6
Igneous Textures - Crystalline Porphyritic Phenocrysts Groundmass Igneous Textures - Crystalline
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 10
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 12
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Glassy Vesicular Igneous Textures Fragmental (Pyroclastic) Igneous Rocks Granite Diorite Gabbro Rhyolite Andesite Basalt Course Fine Felsic Mafic Intermediate p.15 Igneous Rocks Pumice Obsidian Tuff Scoria Glassy Fragmental Felsic Mafic Vesicular XX XX p.15 Ultramafic Rock Coarse Grained: Peridotite (Dunite) Fine Grained: Komatiite Igneous Rocks Interpretation Sir James Hall Scottish Geologist Igneous Rock “Translations” • Composition (Mafic v. Felsic) • Texture Grain Size, etc. • Magma source • How quickly and where magma cooled p.16 “Translation” of Composition: Magma Source (simplified) Mafic Felsic (Partial) melting of the mantle (Partial) melting of continental crust (Partial) melting of oceanic crust “Translation” of Texture: Plutons and Volcanoes Fine Grained Coarse Grained...
View Full Document

Page1 / 12

W10_103_2a_rocks1 - Glassy Vesicular Igneous Textures...

This preview shows document pages 1 - 12. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online