OCN 320 WEEK 2 CHECK YOUR UNDERSTANDING
Directions: Using Microsoft Word to save and submit your work, please complete the following assignment. Check Your Understanding answers should show in depth knowledge of the topic by presenting information in at least two paragraphs per question. Outside resources are highly recommended.
Chapter 4
1. Why did people think an ocean was deepest at its center? What changed their minds?
2. The terms leading and trailing are also used to describe continental margins. How do you suppose these words relate to active and passive, or Atlantic-type and Pacific-type used in the text?
3. What forces control the shape of a continental shelf? A continental slope? A continental rise? Describe their unique characteristics that differentiate them from one another.
4. Your time machine has been programmed to deliver you to Frankfurt, Germany, on a chilly evening in January 1912, to hear Wegener- lectures on continental drift. What two illustrations from this chapter would you take with you to cheer him up after the lecture? Why did you select those particular illustrations?
Chapter 5
5. Is the thickness of ooze always an accurate indication of the biological productivity of surface water in a given area?
6. What is the calcium carbonate compensation depth (CCD)? Is there a compensation depth for the siliceous components of once-living things?
7. What sediments accumulate most rapidly? Lease rapidly?
8. Can marine sediments tell us about the history of the ocean from the time of its origin?
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