Oceanography Google Earth and Plate Tectonics Questions
Order ID |
53563633773 |
Type |
Essay |
Writer Level |
Masters |
Style |
APA |
Sources/References |
4 |
Perfect Number of Pages to Order |
5-10 Pages |
Description/Paper Instructions
Oceanography Google Earth and Plate Tectonics Questions
IMPORTANT
………….READ THIS first:
This exercise uses
Google Earth
(http://www.google.com/earth/index.html ) and Google
Earth overlays (.kmz files created by various members of the scientific community) and
information from the USGS website including seismic data and maps.
To import these
files into Google Earth, simply pick them up with the cursor and drop them into Google
Earth.
You can activate/deactivate the individual layers in the “Temporary Places”
folder located on the panel on the left.
FIRST and FOREMOST: Download Google Earth:
Never used Google Earth Before? Perhaps try a Google Earth Tutorials:
- Go to:
and select the
Navigation
and
Drawing and Measuring
tours to familiarize yourself with
basic navigation in Google Earth.
Updating program if you already have Google Earth on your computer:
Since Google earth often has updates, please do the following steps prior to starting the
lab
1.
Open Google Earth on the laptop. Go to “help” and select “check for updates online
and
update if available or go to “
“
for the update.
2.
Please
uncheck the box
for: “Include Google Chrome, a fast new browser for
Windows and
Mac”.
Then select “agree and download”
DELIVERABLES
:For this lab, you will need to record your answers in a separate word
document.
ONLY PROVIDE THE ANSWERS FOR THESE QUESTIONS IN THE DOCUMENT
YOU TURN IN.
You should include your name on the first line of the document and the
second line should read:
Lab 1 Introduction to google earth and Plate Tectonics.
Number each of your answers according to the question in this document. Each answer
must be on a different line.
Exercise 1: Latitude and Longitude
Turn on the latitude and longitude grid. Go to “View” from the top menu and select
“grid”.
Look at the very bottom of your screen. The Latitude, Longitude and elevation of your
cursor is shown. Negative elevation is depth below sea level.
(You can change from the units from decimal degrees to degrees, minutes, and seconds, AND from
meters
to
feet
by going to “Google Earth” from the top menu, then “Preferences”.)
1.
Locate 0
o
Longitude. What is the name of this line? __________________________
2.
Locate 180
o
Longitude. This line is called the International Date Line or the
_________________.
3.
While looking at 180
o
Longitude, what general direction are the Hawaiian Islands
located (east or west direction) of this line ? _________________
4.
Search for Mauna Kea (use the search box) and zoom in until you get a blue/grey
square. Place your cursor over the center of it. What is the Latitude and
Longitude (degrees and minutes only) of Mauna Kea in Hawaii?
Lat____________________ Long_____________________
5.
What is the Lat/ Long (degrees and minutes only) of the Loihi seamount?
Lat____________________ Long_____________________
6.
What is the depth of the seamount (in meters)? ____________________
7.
Briefly describe the significance of Loihi with respect to the Hawaiian Islands.
Exercise 2: Measuring Distances
Using the ruler (available along the toolbar at the top as the ruler icon), set the
distance units to Kilometers and measure the following with the ruler in Google Earth:
- Approximately how far is Mauna Kea from Loihi seamount (in km)? _____________
- Search and proceed to the island of Guam. What major deep ocean basin feature is
directly east of Guam? You may need to zoom out a bit in order to get some
perspective.
Now zoom out and head to Florida!
- Using the ruler tool, how far from Florida’s east coast is the Mid Atlantic Ridge?
________
Exercise 4: Plate Tectonics
Plate Boundaries
– Recall: there are 3 basic types of plate boundaries:
Convergent
– When plates come together, one plate will be subducted under the
other. This form features such as mountains, island arc systems, and ocean trenches.
Continent – Continent
– These often form mountain ranges.
Continent- Oceanic
– The denser oceanic plate subducts under the less dense
continental plate.
Oceanic-Oceanic
– The older and denser oceanic plate will subduct under the younger
less dense oceanic plate.
Divergent
– When plates move apart it creates spreading centers that show up as sea
floor spreading zones in oceanic crust, and rift valleys in continental crust.
Transform
– When plates slide past each other. They are very common in oceans
where they offset mid-ocean ridge. Now go back to Google Earth!
DRAG and DROP the “
Earths_Tectonic_Plates.kmz” file onto Google Earth
. You
should now be able to see the location and nature of the plate boundaries.
- What is the main plate boundary type found at the Mid-Atlantic Ridge?
- What type of boundary is found between the South American Plate and the Nazca
Plate?
- What type of plate boundary runs through California?
- What type of present-day collision formed the Himalayan Mountains at the
boundary between the Indian Plate and the Eurasian Plate?
Now, DRAG AND DROP “seafloor_age_10my_isochrons.kmz” into Google Earth
- What is the approximate age of the crust at the Mid Atlantic Ridge plate boundary?
- What is the approximate age of the oceanic crust off the eastern seaboard of North
America?
- Proceed to the oceanic crust off the coast of Oregon. What is the age of the crust
just offshore?
- Why is the crust so young off the coast of the Pacific Northwest?
19.
Look at the divergent plate boundary in the south Pacific west of South America.
How wide (east to west) is the 0 -10 Ma crust along this plate boundary?
(Use the
ruler tool)
- How wide is the 0 – 10 Ma crust along the Mid Atlantic Ridge?
- Why is there is such a dramatic difference between the widths of the youngest
crust along these two mid ocean ridges?
- Now, zoom back over to the Mid Atlantic Ridge. Describe how ocean depth
changes as you go from the Mid Atlantic Ridge plate boundary east toward the coast of
Europe. Give specific depths.
- If you start at the Mid Atlantic Ridge and Move WEST toward North America, do you
observe the same pattern of depth variation?
You can now deactivate the “seafloor_age_10my_isochrons.kmz” layer. To do
this, click the box next to that layer, on the left under “Places”
Now, go to the island of Tonga (if you don’t know where this is, type “Tonga” into the
search bar.)
READ THIS:
Make sure you have a distance scale at the bottom left. If you don’t, go to
“VIEW” at the top of the screen, and click “Scale Legend” and it should appear. You’ll
want kilometers instead of miles, so again at the top, click on “Google Earth” >
”Preferences” and then find “Units of Measurement” and select “meters, kilometers”.
Ok, Tonga is an island that sits near a convergent a plate boundary (
disregard the
divergent plate boundary labeled here-the red line).
Make sure you are properly
zoomed out (field of view of the screen at ~1500km or so).
- Describe how the ocean depth changes as you approach and cross the Tonga plate
boundary from ~500 km east of Tonga to ~250 km west. Give specific depths.
- What specific plate tectonic feature did you just cross
RUBRIC
QUALITY OF RESPONSE |
NO RESPONSE |
POOR / UNSATISFACTORY |
SATISFACTORY |
GOOD |
EXCELLENT |
Content (worth a maximum of 50% of the total points) |
Zero points: Student failed to submit the final paper. |
20 points out of 50: The essay illustrates poor understanding of the relevant material by failing to address or incorrectly addressing the relevant content; failing to identify or inaccurately explaining/defining key concepts/ideas; ignoring or incorrectly explaining key points/claims and the reasoning behind them; and/or incorrectly or inappropriately using terminology; and elements of the response are lacking. |
30 points out of 50: The essay illustrates a rudimentary understanding of the relevant material by mentioning but not full explaining the relevant content; identifying some of the key concepts/ideas though failing to fully or accurately explain many of them; using terminology, though sometimes inaccurately or inappropriately; and/or incorporating some key claims/points but failing to explain the reasoning behind them or doing so inaccurately. Elements of the required response may also be lacking. |
40 points out of 50: The essay illustrates solid understanding of the relevant material by correctly addressing most of the relevant content; identifying and explaining most of the key concepts/ideas; using correct terminology; explaining the reasoning behind most of the key points/claims; and/or where necessary or useful, substantiating some points with accurate examples. The answer is complete. |
50 points: The essay illustrates exemplary understanding of the relevant material by thoroughly and correctly addressing the relevant content; identifying and explaining all of the key concepts/ideas; using correct terminology explaining the reasoning behind key points/claims and substantiating, as necessary/useful, points with several accurate and illuminating examples. No aspects of the required answer are missing. |
Use of Sources (worth a maximum of 20% of the total points). |
Zero points: Student failed to include citations and/or references. Or the student failed to submit a final paper. |
5 out 20 points: Sources are seldom cited to support statements and/or format of citations are not recognizable as APA 6th Edition format. There are major errors in the formation of the references and citations. And/or there is a major reliance on highly questionable. The Student fails to provide an adequate synthesis of research collected for the paper. |
10 out 20 points: References to scholarly sources are occasionally given; many statements seem unsubstantiated. Frequent errors in APA 6th Edition format, leaving the reader confused about the source of the information. There are significant errors of the formation in the references and citations. And/or there is a significant use of highly questionable sources. |
15 out 20 points: Credible Scholarly sources are used effectively support claims and are, for the most part, clear and fairly represented. APA 6th Edition is used with only a few minor errors. There are minor errors in reference and/or citations. And/or there is some use of questionable sources. |
20 points: Credible scholarly sources are used to give compelling evidence to support claims and are clearly and fairly represented. APA 6th Edition format is used accurately and consistently. The student uses above the maximum required references in the development of the assignment. |
Grammar (worth maximum of 20% of total points) |
Zero points: Student failed to submit the final paper. |
5 points out of 20: The paper does not communicate ideas/points clearly due to inappropriate use of terminology and vague language; thoughts and sentences are disjointed or incomprehensible; organization lacking; and/or numerous grammatical, spelling/punctuation errors |
10 points out 20: The paper is often unclear and difficult to follow due to some inappropriate terminology and/or vague language; ideas may be fragmented, wandering and/or repetitive; poor organization; and/or some grammatical, spelling, punctuation errors |
15 points out of 20: The paper is mostly clear as a result of appropriate use of terminology and minimal vagueness; no tangents and no repetition; fairly good organization; almost perfect grammar, spelling, punctuation, and word usage. |
20 points: The paper is clear, concise, and a pleasure to read as a result of appropriate and precise use of terminology; total coherence of thoughts and presentation and logical organization; and the essay is error free. |
Structure of the Paper (worth 10% of total points) |
Zero points: Student failed to submit the final paper. |
3 points out of 10: Student needs to develop better formatting skills. The paper omits significant structural elements required for and APA 6th edition paper. Formatting of the paper has major flaws. The paper does not conform to APA 6th edition requirements whatsoever. |
5 points out of 10: Appearance of final paper demonstrates the student’s limited ability to format the paper. There are significant errors in formatting and/or the total omission of major components of an APA 6th edition paper. They can include the omission of the cover page, abstract, and page numbers. Additionally the page has major formatting issues with spacing or paragraph formation. Font size might not conform to size requirements. The student also significantly writes too large or too short of and paper |
7 points out of 10: Research paper presents an above-average use of formatting skills. The paper has slight errors within the paper. This can include small errors or omissions with the cover page, abstract, page number, and headers. There could be also slight formatting issues with the document spacing or the font Additionally the paper might slightly exceed or undershoot the specific number of required written pages for the assignment. |
10 points: Student provides a high-caliber, formatted paper. This includes an APA 6th edition cover page, abstract, page number, headers and is double spaced in 12’ Times Roman Font. Additionally, the paper conforms to the specific number of required written pages and neither goes over or under the specified length of the paper. |
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