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Modal mineralogy Major elements Normative compositions Cationic proportions Trace elements
Classifications based on modal mineralogy Lamprophyres nomenclatures
Classifications based on modal mineralogy Charnockite nomenclature
Classifications based on major elements AFM
TAS (Cox, 1979 version) Classifications based on major elements
TAS (Wilson, 1989 version after Cox) Classifications based on major elements
Hi-Mg volcanic rocks (derived from TAS) Classifications based on major elements
Classification of sub-alkaline lavas Classifications based on major elements
Classification based on normative composition Streckeisen & LeMaitre: normative version of a QAP/F
Basalts and related rocks Classification based on normative composition
O’Connor diagram for quartz-bearing plutonic rocks Classification based on normative composition
Shand, A/CNK vs. A/NK Classification based on cationic proportions
De la Roche et al. R1-R2 diagram Classification based on cationic proportions
Batchelor-Bowden interpretation of de la Roche’s diagram Classification based on cationic proportions
Jensen cationic plot Classification based on cationic proportions
Pearce diagrams (for granites) “Classification” based on trace elements
Wood diagrams (for basalts) “Classification” based on trace elements
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 Questions –How many igneous rock names should you learn, and what do they mean? –What is a mid-ocean.
IGNEOUS ROCKS David Suescún Pelegay. INDEX O 1.- Definition. O 2.- Examples. O 3.- Classification. O 4.- Uses.
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.
Chapter 8: Major Elements “Wet-chems”: gravimetric/volumetric.
Igneous Rocks Type of Igneous rock formed depends on the environment where it crystallizes. Two main environments: Volcanic Molten rock cools on or near.
Magmatism and Tectonics. Basaltic Lava Fountain and Flows – (Hawaii)
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.
IGNEOUS ROCKS “Hot Stuff”. Igneous Sedimentary Metamorphic.
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.
Tectonic petrology 2013 GEOS 408/508 Lectures 1 and 2.
Igneous Rocks Basic Principles. Igneous Rocks Igneous means “fire formed” Igneous rocks originate at high temperatures Temperatures are hot enough to.
Northern cordillera Eocene Plutonic Rocks. The Granite Problem? 18 th century: Plutonists versus Neptunists igneous/metamorphic sedimentary Early 20 th.
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.
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.
Created by the solidification (crystallization) of magma or lava.
Copyright © 2014 All rights reserved, Government of Newfoundland and Labrador Earth Systems 3209 Unit: 3 Earth’s Materials Reference: Chapters 2, 3, 6,
Granitoid Rocks 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) = % SiO 2 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 Molten rock comes from depth (less dense so works its way to surface) - full of gases (H20, C02, S02) plus elements in silicates.
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. Rocks and Minerals Rocks: naturally occurring combination of minerals (minerals are the building blocks for rocks)
The Rock Cycle: Igneous Rocks. What is a rock? An aggregate of minerals 3 types of rock – Igneous – Sedimentary – Metamorphic Rock cycle.
Igneous Rocks: Born of Fire. General characteristics of magma Igneous rocks form as molten rock cools and solidifies (Ignis = fire) General characteristics.
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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