Geology 10 (Physical Geology)

California State University, Sacramento

Week 14: Ocean floor and

Midterm #3


Upon completion of this unit students should be able to:

  • Describe the slope and composition of the continental shelf, continental slope, continental rise and ocean trench.

  • Describe how new crust is formed at the mid-oceanic ridge.

  • Describe how the magnetic patterns of ocean crust can be used to date the crust.

  • Summarize age patterns in ocean crust.

  • Describe how guyotes, seamounts, barrier reefs and atolls form.


Homework for week #14
Bring a scantron form to the midterm this Friday.

Study for the midterm.  Here are some terms to know and sample questions from each chapter:

Midterm #3 review questions

You should also review your notes, review the chapters in the textbook, look at the chapter summaries from your textbook, and take on-line quizzes for practice.

Reading Assignments

From Plummer, Carlson and Hammersley, Physical Geology, 13th edition

Chapter 18 - Sea Floor


Powerpoint graphics used during lectures


Sea Floor