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GEOL 31 - Physical Oceanography
Exam # 1 Study Guide - Spring 2014
exam date: Wednesday, March 19, 2014
Professor: Dr. Alessandro Grippo, Ph.D.
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General Information | Last Updated March 11, 2014 | |
PLEASE NOTE:
The southern California coast in Pacific Palisades, Los Angeles: an example of a transform active margin.
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Study Guide: LECTURE | Last Updated March 11, 2014 | |
Introduction
You should read these few pages in order to get an idea of the subject and of what we are going to be dealing with during the rest of the semester
- Read the opening paragraph
- Read What is Oceanography
- Read How are Earth's Oceans Unique?
- Read What is Rational Use of Technology?
Chapter 1 - Introduction to Planet "Earth"
Study the whole chapter
- Know How Many Oceans Exist on Earth?
among other things, know the names of the oceans and their main characteristics
- Read How Was Early Exploration of the Oceans Achieved?
- Read What is the Nature of Scientific Enquiry?
- Know How were Earth and the Solar System Created?
know in particular the section on Earth's Internal Structure
- Know How Were Earth's Atmosphere and Oceans Created?
- Know Did Life Begin in the Ocean?
- Know How Old is the Earth?
Chapter 2 - Plate Tectonics and the Ocean Floor
Study the whole chapter
- Know the introductory paragraph
- Know What Evidence Supports Continental Drift?
be sure to know the four lines of evidence of Wegener and the objections to his theory
- Know What Evidence Supports Continental Drift?
- Know What Features Occur at Plate Boundaries?
be sure to know this section well
- Know Testing the Model: What are some Applications of Plate Tectonics?
- Know How Has Earth Changed in the Past, and How Will it Look in the Future?
- Know Plate Tectonics ... to be Continued
Chapter 3 - Marine Provinces
Study the whole chapter
- Know What Techniques are used to Determine Ocean Bathymetry?
Know about soundings, echo soundings (including the different tools such as PDR, Seabeam, Sea MARC, GLORIA), and seismic reflection techniques. Know section 3.1 on pages 78 and 79, Sea Floor Mapping From Space. For instance, check the difference between the bathymetric maps made with echo sounders and those made with satellite data in Fig. 3B, page 78.
- Know What does Earth's Hypsographic Curve Reveal?
hint: what do the flat portions and the slopes of the hypsographic curve seem to suggest?
- Know What Features Exist on Continental Margins?
among all other things, know about:
- passive margins and active margins (both convergent and transform)
- the continental shelf: know the main characteristics, know the relationship between the kind of margin and the kind of shelf, know about the continental borderland
- the continental slope
- submarine canyons and turbidity currents
- the continental rise: know what turbidite deposits are, what is graded bedding, what is a submarine, or deep-sea, fan
- Know What Features Exist in the Deep-Ocean Basins?
among all other things, know about:
- abyssal plains: flat features formed by sediment deposition
- volcanic peaks in the abyssal plain: seamounts vs. tablemounts (or guyots); abyssal hills, or seaknolls, and abyssal hill provinces
- ocean trenches
- Know What Features Exist Along the Mid-Ocean Ridge?
among all other things, know about:
- rift valleys
- the difference between an ocean ridge and an ocean rise
- pillow lavas, or pillow basalts
- the relative high frequency of mid-ocean ridge volcanic eruptions
- hydrothermal vents (warm-water vents, white smokers, black smokers)
- deep-ocean ecosystem around hydrothermal vents centered on non-photosynthetic bacteria
- transform faults and fracture zones: what is the difference between the two?
- the three kinds of oceanic islands
- islands associated with the mid-ocean ridge
- islands associated to hot spots
- islands that are part of an arc and are associated with convergent plate boundaries
(notice that islands can also be part of a continent, and as such they do not occur in the deep ocean)
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Copyright © 1994-2014, Alessandro Grippo, All Rights Reserved.
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