California State University, Sacramento
Week 3: The rock cycle, intrusive igneous rocks
Upon completion of this unit students should be able to:
Discuss the major types of rocks and the pathways of the rock cycle
Describe how crystal size is related to cooling rate
Define these terms: porphyritic, classy, pegmatite, coarse-grained
Classify intrusive igneous rocks by their chemistry or composition: mafic, intermediate and felsic. Relate these terms to the rock names gabbro, diorite, and granite.
Be able to define and explain the terms country rock, dike, sill, pluton, stock and batholith
Describe how pressure, temperature and composition can affect melting
Relate plate boundaries to particular types of igneous rocks
Be familiar with Bowen's reaction series and how it controls magma crystallization and melting sequences
Homework for week #3 Complete the on-line multiple choice quiz for Chapter three (Intrusive igneous rocks).
E-mail it to me at:
Please note: This is different from my CSUS e-mail address!
You can find the quiz by following this link:
Click on the “Resources” tab at the top of the page, and scroll down to the chapter that you want to work on. Complete the multiple choice quiz on-line, and e-mail the results to me.
Due date for homework: The start of class on Friday, Sept. 16
From Plummer, Carlson and Hammersley, Physical Geology, 13th edition
Chapter 3- Intrusive igneous rocks, rock cycle
Powerpoint graphics used during lectures