ATM 107 The Oceans

Ch. 3 – Plate Tectonics

Friday, 4 September 2015

Daily Announcements:

1) There are still seats available for this course via Class Permission Numbers.

2) Last day to drop any course (without receiving a “W”) is Wed., September 9.

3) No class on Monday, Sep. 7, Labor Day.

Song #1: “Livin’ on the Fault Line” by The Doobie Brothers

Song #2: “The California Earthquake Song” by Danney Ball

Text Source Today: 3.3*, 3.4

* not including sub-section “Polar Wandering Curve” (we will save this topic for later)

· Continental Drift (Wegener’s Theory) Notes Template

· Features of the Ocean Floor PDF DOC

· Convection Cells, Sea Floor Spreading and Continental Drift

· Evidence of Sea Floor Spreading

· Magnetic Polar Reversal

Study Guide Material (Stacey’s Guide) :

1) What is Wegener’s Theory of “Continental Drift?”

2) What were Pangaea, Laurasia, Gondwanaland, Panthalassa, Tethys?

3) Where are ocean floor (under water mountain range) “ridges” and “rises” found?

4) What is a “rift valley?”

5) Where are “trenches” found on the ocean floor?

6) Explain how “convection cells” lead to sea floor spreading and provide support to

Wegener’s Theory of “Continental Drift.”

7) Know the “evidence” of sea floor spreading (including types of earthquakes, heat

from the mantle, age and thickness of sediments, and magnetic polar reversals).