Geology 220
Spring 2011
Introduction
Plate tectonic theory gained widespread acceptance in the earth science community less than 40 years ago. The theory explains the origins of volcanoes and earthquakes and the locations of mountain belts and oceans. We will explore topics such as the structure of the Earth, earthquake analysis and prediction, the creation and destruction of the ocean floor, and the location and style of mountain building across the globe. Weekly writing assignments, homework exercises, and a group laboratory project are required.Learning goals
Much of your success in this course will be measured on your ability to think like a scientist and solve problems using a variety of tools rather than your ability to recall facts (although a moderate amount of recollection of structures and terms is necessary, too). Upon your successful completion of this course, I hope you will:- enjoy thinking about the dynamism of Earth on the geologic time scale
- be comfortable using quantitative methods to understand topics in tectonics including plate motion, earthquake mechanisms, the types of plate boundaries, and magnetism of the sea floor
- have conceptual understanding of various geophysical methods including gravity, magnetics, paleomagnetism, and seismology
- read and extract useful information from all sorts of maps
- hone your scientific writing and editing skills
Text
Kearey, Klepeis, and Vine. Global Tectonics, third edition. Blackwell Science. (It's purple and quite different from the other edition in green.)Bring to class
- buy a ruler at the bookstore that has a protractor and bring it every day
- colored pencils will be useful
- bring a calculator
- bring the textbook
Grading
This is the breakdown for grading. For more information about each category, continue reading below this list.- 30% - Exams
- 15% - Homework and quizzes
- 15% - Laboratory exercises
- 10% - Group laboratory project
- 30% - Plate tectonics wiki
Field trip
There is no weekend field trip for this class. Instead, I really encourage you all to go on the departmental field trip to Taylors Falls - this is a new and exciting opportunity to see some old rocks and meet some new people.Exams
There will be two or three midterms for this course (probably weeks 3, 7, and 9) and no final exam. At least one of the midterms may be a take-home exam.
Homework and quizzes
There are ~5 homework exercises that I will assign throughout the term. These are designed to allow exploration of important concepts in plate tectonics, often in a bit more mathematical detail, than we’ll cover in class. Be sure to start the homework early so you can come talk to me if you have questions. There may be unannounced in-class quizzes about the reading material. Make sure you do the reading before class.Labs
Not only do labs make up a significant portion of your grade, they also represent the best way for you to practice and really understand ideas and concepts discussed in class. Please be neat and turn in work on time - laboratory exercises are due at the start of lab the following week. Seriously.Group project
There will be a group project for this course carried out during the about five of the lab meetings. This project will be to design a lab for this tectonics course based on an experimental concept. It's kind of post-modern, I know, but it will give your group a chance to explore a plate tectonic concept in more detail and figure out how to share this information with other Tectonics students. In the last session, you'll trade labs and have a chance to try out another groups' lab.Plate tectonics wiki
In this course, you will be writing an article about your very own tectonic plate, or part of a tectonic plate, on the course wiki. Please note at the start that I do not know all the answers about each plate; you will often be discovering information on your own.The structure of this assignment is not like a normal term paper that you write in a few days at the end of term. Instead, there will be short, focused, weekly writing assignments that are often loosely related to the course material. This way, you have a chance to apply what we discuss in class to your own personal test case. Peer editing is an important part of this writing assignment - you'll edit other's pages each week following a new writing assignment. At the end of the term, you will have time to revise and reorganize your article based on comments of your peers and Sarah.
Please note that this assignment may (and should) take 3-4 hours per week outside of class, especially later in the term as the topics become more research-based. Sophomores may want to consider including part or all of their article in their writing portfolio.