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Modal mineralogy Major elements Normative compositions Cationic proportions Trace elements
Classifications based on modal mineralogyLamprophyres nomenclatures
Classifications based on modal mineralogyCharnockite nomenclature
Classifications based on major elementsAFM
Classifications based on major elementsTAS (Cox, 1979 version)
Classifications based on major elementsTAS (Wilson, 1989 version after Cox)
Classifications based on major elementsHi-Mg volcanic rocks (derived from TAS)
Classifications based on major elementsClassification of sub-alkaline lavas
Classification based on normative compositionStreckeisen & LeMaitre: normative version of a QAP/F
Classification based on normative compositionBasalts and related rocks
Classification based on normative compositionO’Connor diagram for quartz-bearing plutonic rocks
Classification based on cationic proportionsShand, A/CNK vs. A/NK
Classification based on cationic proportionsDe la Roche et al. R1-R2 diagram
Classification based on cationic proportionsBatchelor-Bowden interpretation of de la Roche’s diagram
Classification based on cationic proportionsJensen cationic plot
“Classification” based on trace elementsPearce diagrams (for granites)
“Classification” based on trace elementsWood diagrams (for basalts)
Introduction to Igneous Rocks IN THIS LECTURE –The basis of classification –Major versus trace versus REE –Classification of Igneous Rocks Plutonic Volcanic.
Lecture 2a: Igneous classification, mid-ocean ridges
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Major Element Variation Reading: Winter Chapter 8.
Geochemistry Lab Exercise: Crystallization of Magmas John C. Ayers Vanderbilt University.
3.2 Igneous Rocks Igneous comes from the Latin word which means “fire” Igneous rocks form by “crystallization” when hot molten rock solidifies.
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Igneous Rocks Type of Igneous rock formed depends on the environment where it crystallizes. Two main environments: Volcanic Molten rock cools on or near.
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Aim: How are igneous rocks formed? Do Now: Describe what “Solidification” means in your own words.
Jeff Ryan, Department of Geology University of South Florida Leveraging Geoinformatics in the Classroom: GeoMapApp, IEDA/EarthChem, other geo- data Portals.
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Jeff Ryan, Department of Geology University of South Florida Online Investigation of an Island Arc Volcano: Anatahan, Mariana Arc.
Eplanation of this presentation The object is to: 1.Link major element chemical variations to a measure of crystallization progress (Mg’). 2.To link major.
How do mantle rocks melt ? 1.Adding water to the system: flux melting 2.Decompress the rocks- decompression melting 3.Heating Path 1 Path 2 Path 3.
Rocks Rock! Why? All Earth’s processes such as volcanic eruptions, mountain building, erosions and even earthquakes involve rocks and minerals. Rocks.
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Igneous Rocks Basic Principles. Igneous Rocks Igneous means “fire formed” Igneous rocks originate at high temperatures Temperatures are hot enough to.
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Chunky Iggy Rocks. All igneous rocks are formed from liquid rock known as __________? O Magma.
Volcanoes Here we will compare extrusive and intrusive volcanic features and action q distinguish magma from lava q identify intrusive and extrusive.
Igneous Rocks Magma is the molten rock material below the surface. Lower density causes magma to rise toward the surface (compared to the surrounding.
COMPARISON: Webster-Addie Amphibolites to Buck Creek and Carroll Knob Amphibolites Sample Preparation and Analytical Techniques Whole-Rock Geochemical.
Names of Igneous Rocks Texture + Composition = name Set up diagrams (many ternary ones again, you remember how these work?) to represent composition changes.
IGNEOUS ROCKS by Charina Cameron Part 1: Classification & Composition.
I. Formation They are formed when hot, liquid rock, or magma, cools and solidifies (Hardens)
Igneous rocks are further classified according to; Describes the appearance of an igneous rock, based on the size, shape and arrangement of interlocking.
Copyright © 2014 All rights reserved, Government of Newfoundland and Labrador Earth Systems 3209 Unit: 3 Earth’s Materials Reference: Chapters 2, 3, 6,
Reading: Winter (2001) Chapter 18
Petrology Midterm I Powerpoints 1-8 Quizzes 1-3 Homework 1-2 Winter Chapters 1-10.
Identify, describe and explain the origin of basic and ultrabasic rocks using silica percentage. Basic (gabbro) = % SiO2 Ultrabasic = 44%
Evolution of Igneous Rocks. Simple Eutectic Two components that don’t mix in the solid state One or the other begins to form as melt cools When temperature.
Igneous Rocks. From the latin word “ignis” (which means “fire”), igneous rocks are those that form from the cooling and crystallization of magma From.
Highly Silicic Compositions on the Moon Glotch et al. Presented by Mark Popinchalk.
Igneous Rock Formation
1 IGNEOUS ROCKS SELF-DIRECTED NAME: _______________________________ (PRINT CLEARLY) DIRECTIONS There are several pages to read and some diagrams to study.
ESCI 101: Lecture The Rock Cycle & Igneous Rocks February 23, 2007 Copy of this lecture will be found at: With Some.
Isotopes. Update: Midterm graded Today: What are isotopes Radioactive decay Age dating Isotopes as fingerprint Today’s lecture.
3.2 Igneous rocks form from molten rock
The Rock Cycle: Igneous Rocks
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Classification of Igneous Rocks Figure 2-1a. Method #1 for plotting a point with the components: 70% X, 20% Y, and 10% Z on triangular diagrams. An Introduction.
Igneous Rocks. Igneous rock definition Rocks formed by the cooling and solidifying of molten materials. Igneous rocks can form beneath the Earth’s surface.
Lesson 2 Power Point. Igneous Rocks Igneous rocks are formed from magma (Arizona, 2007). “The two main types of igneous rocks are plutonic and volcanic.
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