Modern Concepts in Earth Science Igneous Rocks Formed in Rift Igneous Rocks Formed Above Subducting Plate Course 7 – Igneous Rocks.

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Presentation transcript:

Modern Concepts in Earth Science Igneous Rocks Formed in Rift Igneous Rocks Formed Above Subducting Plate Course 7 – Igneous Rocks

Modern Concepts in Earth Science Extrusive Igneous Rock

Modern Concepts in Earth Science Intrusive Igneous Rock

Modern Concepts in Earth Science Bowen’s Reaction Series

Modern Concepts in Earth Science Igneous Rock Classification by Composition

Modern Concepts in Earth Science Gabbro Basalt Mafic Rocks

Modern Concepts in Earth Science Andesite Diorite Intermediate Rocks

Modern Concepts in Earth Science Granite Rhyolite Felsic Rocks

Modern Concepts in Earth Science Peridotite Komatiite Ultramafic Rocks

Modern Concepts in Earth Science Ternary Diagrams

Modern Concepts in Earth Science Modal Classification of Igneous Rocks (foid)-bearing Trachyte (foid)-bearing Latite (foid)-bearing Andesite/Basalt (Foid)ites F A P Q RhyoliteDacite TrachyteLatite Andesite/ Basalt Phonolite Tephrite Q = Quartz A = Alkali Feldspar F = Feldspathoids P = Plagioclase VolcanicPlutonic

Modern Concepts in Earth Science Igneous Textures Aphanitic texture - basalt Phaneritic texture - granite

Modern Concepts in Earth Science Porphyritic texture - Granite Volcanic Glass - Obsidian Igneous Textures

Modern Concepts in Earth Science Volcaniclastic Rock - Pyroclastic FlowsPegmatite Igneous Textures

Modern Concepts in Earth Science Summary of Igneous Rock Texture and Composition

Modern Concepts in Earth Science Continental Large Igneous Provinces

Modern Concepts in Earth Science Geothermal Gradient

Modern Concepts in Earth Science Melting Temperatures (Dry Igneous Rocks)

Modern Concepts in Earth Science Melting Temperatures (Wet Igneous Rocks)

Modern Concepts in Earth Science Decompression melting

Modern Concepts in Earth Science The Role of Water

Modern Concepts in Earth Science Magmatic Differentiation and Assimilation

Modern Concepts in Earth Science The Andesite Line

Modern Concepts in Earth Science Structure of Oceanic Crust and Formation of Ophiolites pillow basalt sheeted diabase dike swarms gabbro layered gabbro mantle peridotite, dunite, lherzolite, or hartzbergite.