E&ES 314/514 + 316/516
SPRING 2015
Petrogenesis of Igneous and Metamorphic Rocks
Lecture: MW 11-12:20 (SCI 317)
Lab: R 1:10-4 (SCI 317)
Instructor: Jim Greenwood (SCI 439)
Class Text: Principles of Igneous & Metamorphic Petrology by Anthony Philpotts and Jay Ague
Lab text Petrography of Igneous and Metamorphic Rocks by A. R. Philpotts
Expectations: (1) Class, Lab, and Field Trip attendance
(2) Reading assignments completed prior to class
(3) Assignments due on time (HW, Labs, Final project)
In this class, we will learn how the “hot” rocks of the Earth are formed. We will look at hot rocks on other planets too for comparison. Rocks are all around you—now you will learn why they are there and how they formed. We will learn about crystals, magmas, gases, volcanoes, diffusion, thermodynamics, phase equilibria, heat conduction, how magmas cool, differentiation, and some igneous geochemistry. We will learn why the mantle melts to form igneous rocks.
We will also learn about how the metamorphic rocks, form, which are very different than the igneous rocks. Metamorphic rocks grow very slowly. The interplay between kinetics and equilibrium are on full display with these rocks. They also have an incredible memory of the tectonic forces that have shaped them, which can be gleaned from their study.
The labs are primarily Petrography, which is the study of rocks in thin-section under a microscope (light or electron microscopes in our case), to learn how the textures and minerals of rocks are the fingerprints that tell us how they formed. You will be expected to devote several hours outside of class to your laboratory exercises. The final project will consist of undertaking a full petrologic investigation of an unknown rock and identifying and describing this sample in detail. You will use the tools available in the department and the skills you learn in this class, such as optical microscopy, electron microscopy, and possibly x-ray fluorescence. This project will begin after Spring Break and will be due MAY 15.
Grading: (1) Exam I 15%
(2) Exam II 15%
(3) Exam III 15%
(4) Lab Grade 20%
(5) Final Project 25% (DUE MAY 15).
(6) Class Participation 10%
There will be three exams. Two exams will be in-class, and one will be take-home. Labs will generally be due before the next lab session. Lab grades will be based on the lab assignments and two laboratory exams.
Lectures and Lab Dates Readings and Homework
R Jan. 22 Introduction to Igneous and Metamorphic
Petrology
M Jan.26 Igneous Rock classification Ch. 1, 6 Philpotts+Ague; Ch. 4 Philpotts
W Jan. 28 Basic igneous geochemistry pp 356-361 P+A
R Jan. 29 LAB 1 Basalts and Introduction to Optical
Microscopy Ch 2+3+5 Philpotts
M Feb. 2 Intro. to Thermodynamics and Kinetics Ch. 7 P+A
W Feb. 4 Silicate Melts and volatiles in magmas Ch. 2 P+A
R Feb. 5 LAB 2 Gabbros
M Feb. 9 Phase rule and intro. to binary phase Ch. 8 P+A; Ch. 10 P+A
W Feb. 11 Binary and ternary phase diagrams
R Feb. 12 LAB 3 Ultramafic Rocks pp. 219-228 Winter
M Feb. 16 Influence of P, H2O and real magmas Ch. 11 P+A
W Feb. 18 Chemical Dynamics of melts and crystals Ch. 12 P+A; HW2 due
R Feb. 19 LAB 4 Andesites and felsic rocks
M Feb. 23 EXAM I
W Feb. 25 Magmatic differentiation Ch. 14 P+A
R Feb. 26 LAB 5 Igneous Field Trip or Intro. to Electron Microscopy
M Mar. 2 Generation of Magma from the mantle Ch. 23 P+A
W Mar. 4 MORB and Hawaiian Volcanism Ch. 15 P+A; Ch. 13 Winter
R Mar. 5 NO LAB
SPRING BREAK Mar. 7-22
M Mar. 23 Arc Volcanism Ch. 16+17 Winter
W Mar. 25 Granites Ch. 18 Winter
R Mar. 26 LAB 6 Granites
M Mar. 30 Kimberlites, Komatiites, Carbonatites, etc.
W Apr. 1 Lunar Petrology Ch. 19 Hess
R Apr. 2 LAB 7 Extraterrestrial Rocks
M Apr. 6 Martian and other extraterrestrial Petrology
W Apr. 8 EXAM II
R Apr. 9 Final Project Preparation
M Apr. 13 Intro to Metamorphism Ch. 16 P+A
W Apr. 15 Metamorphic rocks, minerals, fabrics Ch. 17 P+A
R Apr. 16 LAB 8 Field Trip-Local Metamorphic Rocks
M Apr. 20 Metamorphic facies
W Apr. 22 Contact Metamorphism
R Apr. 23 LAB 9 Metamorphic Rocks
M Apr. 27 Metamorphic phase equilibria Ch. 18 P+A
W Apr. 29 Metamorphic reactions Ch. 19+20 P+A
R Apr. 30 LAB 10 Field Trip-Local Metamorphic rocks
M May 4 Metamorphism-high pressure Ch. 22 P+A
W May 6 EXAM III