'Partial melting' diaporamas de présentation

Petrologic Constraints on Mantle Temperature and Water Content

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Geol 2312 Igneous and Metamorphic Petrology

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Igneous Rocks

Igneous Rocks. Formed from the cooling and consolidation of magma. Plutonic (intrusive) = cooled below the surface. Volcanic (extrusive) = cooled on the surface. Igneous rocks. Magma: A mass of molten rock below the surface of the Earth.

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Igneous Geology

Igneous Geology. Igneous geology focuses on the process and structure (arrangement of parts) of igneous intrusions and extrusions.

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National Parks in Volcanic Arcs:

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Oceanic Crust, Ophiolites and Alteration

Oceanic Crust, Ophiolites and Alteration. IN THIS LECTURE Overview of Ocean Crust Simplified petrogenetic model Structure of the ocean crust Alteration of the ocean crust Petrology of the ocean crust Overview of Ophiolites Ocean Crust vs Ophiolite Distribution of European Ophiolites

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Objectives

Summarize igneous rock formation. Describe the composition of magma. Identify the factors that affect how rocks melt and crystallize. Section 5.1. Objectives. What are igneous rocks?. Igneous rocks are the rocks that form when molten material cools and crystallizes. Section 5.1.

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Igneous Rocks

Igneous Rocks. v 0047 of 'Igneous Rocks' by Greg Pouch at 2011-08-24 13:59:29 LastSavedBeforeThis 2011-01-19 17:38:01 Geo1013IgneousRocks.ppt on 'GWPOUCHDELL1720'. Igneous Rocks. 3 Overview 4 Definitions 1 5 Texture 6 Phaneritic 7 Aphanitic 8 Porphyritic 9 Glassy 10 Vesicular

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Ch. 5 Sec. 1

Ch. 5 Sec. 1. Igneous Rocks. Igneous rocks are the rocks that form when molten material cools and crystallizes. Review Vocabulary. silicate: mineral that contains silicon and oxygen, and usually one or more other elements. I. Igneous Rock Formation. Formation 1. Molten material

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Chapter 18: Granitoid Rocks

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Fifteen-Twenty Fracture Zone

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Mineral Resources and Environment

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Igneous Rocks

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Earth Science

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Analysis of Partial Melting ^ of CR and R Chondritic Meteorites

Experiments. Analysis of Partial Melting ^ of CR and R Chondritic Meteorites. Courtney King, Kathryn Gardner-Vandy, Dante Lauretta Lunar and Planetary Laboratory, University of Arizona. Objectives.

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Analysis of Partial Melting ^ of CR and R Chondritic Meteorites

Experiments. Analysis of Partial Melting ^ of CR and R Chondritic Meteorites. Courtney King, Kathryn Gardner-Vandy, Dante Lauretta Lunar and Planetary Laboratory, University of Arizona. Objectives.

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Solid solutions Example: Olivine: (Mg,Fe) 2 SiO 4

Solid solutions Example: Olivine: (Mg,Fe) 2 SiO 4 two endmembers of similar crystal form and structure: Forsterite: Mg 2 SiO 4 and Fayalite: Fe 2 SiO 4 isomorphism complete mixing range exists between forsterite and fayalite ( isomorphous mixture )

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Compositional variations within individual late Quaternary basaltic to andesitic scoria cones.

Compositional variations within individual late Quaternary basaltic to andesitic scoria cones. Variations in major and trace element concentrations within single eruptions Scoria vs. Lava. Location of Scoria Study. Near Mt. Lassen at southern end of Cascade Volcanic Arc.

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Compositional variations within individual late Quaternary basaltic to andesitic scoria cones.

Compositional variations within individual late Quaternary basaltic to andesitic scoria cones. Variations in major and trace element concentrations within single eruptions Scoria vs. Lava. Location of Scoria Study. Near Mt. Lassen at southern end of Cascade Volcanic Arc.

195 views • 6 slides