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Question 1 (3 points)
Click on on the upper left of the screen. This will open a window where you can
type in the name of a feature.
• Enter "Hervor Corona" and click
• Under on the left side of the screen, the feature will be listed. Click on + to the left of the
name and information will be displayed.
1. Scroll down in the results window and record the following information for Hervor Corona.
Diameter: ______________ km
Center_Long: _______________ °
Center_Lat: _______________ °
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Question 2 (2 points)
Select the tool from the upper right side of the screen. A small window will appear with three
icons. The left icon, "Point-Coordinates" will return the location of the cursor when we click on the map.
• Select "Point-Coordinates", move the cursor to the thumbtack and click. The X and Y coordinates
will appear in the window. Record the values below.
• Be sure to read the IMPORTANT NOTE in the lab textbook!
2. What are the coordinates that appear:
X Coordinate: ______________
Y Coordinate: ______________
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Question 3 (1 point)
In the "Measure" Window, click on the center icon, "Line-Distance", to measure distances and sizes on the
screen. (Consult the lab textbook for the entire description of steps to to take.)
• Move the cursor to the right side of the outer ring so that the black line is horizontal across the
corona. Double-click to end the line. The length of the line will be displayed in the "Measure"
window. Change the length value to kilometers.
• Be sure to read the NOTE in the lab textbook.
3. Using the "Line-Distance", measure the diameter in km of the inner ring of Hervor Corona.
Total Length of inner ring: ____________________ km
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Question 4 (2 points)
An example of a Radial-Concentric corona is Selu Corona. The radial concentric type has intense fracturing
that radiates from the center of the corona along with the typical circular fracture pattern.
• Click on to return to view the entire surface. Use the and
the tool to find the X and Y Coordinates.
Selu Corona: X Coordinate: ____________ Y Coordinate: ____________
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Question 5 (1 point)
Another type of corona is the Concentric-Double corona. These are similar to the basic type of
corona, Concentric, but they have two distinct annular ridges and/or moats instead of one. An example of a
Concentric-Double Corona can be found at X = -83.9 and Y = -29.9.
• Enter these coordinates in the window and click . Keep zooming in
until the zoom level is 8. Turn on the "Nomenclature" (left menu) to display the name of the
corona.
Name of corona: ______________
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Question 6 (2 points)
There is also the Multiple Corona where two linked coronas are surrounded by rings of fractures. You can
find an example of a multiple corona at -139.5° longitude, -20.0° latitude. Set the Zoom level to 7 to show
some of the surrounding region. Record the names of the side-by-side coronas.
Names: _________________________
Distance in km between these two coronas: ___________________ km.
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Question 7 (4 points)
Use either or + to find and identify the type of the
following coronas (Concentric, Radial-Concentric, Double-Concentric, or Multiple).
a. At X = -157, Y = 49, Name: ________ Type: _______
b. At X = 46.9, Y = -8.5, Name: _______ Type: _______
c. Otygen Corona: Location: __________ Type: _______
d. Ituana Corona: Location: __________ Type: _______
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Question 8 (2 points)
Click , then use for Tamfana corona. Magnify the view to a zoom
level 8. In the space below the question in the lab textbook, sketch Tamfana Corona. Make your sketch large
enough that the ring structure fits in the box in the lab textbook for this question. Either import it into the
answer box below or scan or photograph your sketch and attach it to an iCollege e-mail to your instructor.
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Question 9 (2 points)
Click and go to to find Irnini Mons and record its location.
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Question 10 (2 points)
Use the tool to estimage in km how far these lava flows extend southward from Irnini Mons to
Anala Mons.
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Question 11 (1 point)
View the volcano Maat Mons, at -165.4, 0.5, with a zoom level 6. There are bright, smooth lava flows to N,
NW, W. How far in km does the lava flow to the west extend?
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Question 12 (1 point)
Similarly, look at Sif Mons, at -7.6, 22.2, and measure the length in km of the bright lava flows to the north.
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Question 13 (2 points)
Click and go to to find Theia Mons, the largest volcano on Venus. It
is one of the two large volcanos in Beta Regio. Record its location.
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Question 14 (1 point)
Is it surprising to find a major volcano in the middle of a major rift zone? Explain why or why not.
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Question 15 (2 points)
Use the principle of superposition to determine if the volcano or the rift is the younger feature. Explain your
reasoning.
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Question 16 (1 point)
To view a different example of complex, ridged terrain (CRT) use the tool to look at
76.8 longitude and 42.6 latitude. Turn on names with "Nomenclature" on the left menu to find the name of
this area.
Name: _________________
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Question 17 (1 point)
Use the tool to pan north to another bright CRT or Tessera. What is its name?
Name: ________________
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Question 18 (2 points)
Click and use to find Ozza Mons near the western edge of the global
map. This is a large volcano in which a huge rift originates that runs to the northwest. It is a complex rift
with many intercepting fractures. Teh rift lies atop Atla Regio - a huge series of broad crustal rises. Record
the location.
Coordinates: ______________________
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Question 19 (2 points)
Set the zoom level to 4. You can see how far the northwest rift extends from the mountain. Use the
tool to determine the approximate length and width in km of the rift that originates at Ozza
Mons.
Length: _______________ km
Width: _______________ km
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Question 20 (2 points)
Go to -159.1° longitude, -9.5º latitude to find a small, "anemone-type" volcano. Zoom all the way to
level 9. Note the petal-like lava flows from this volcano. Sketch this volcano in the space provided in your
lab textbook. Either import it into the answer box below or scan or take a digital picture of your sketch and
submit it to the instructor by Email.
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Question 21 (1 point)
Use the tool to estimate the diameter in km of this volcano.
Diameter: ________________ km
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Question 22 (3 points)
Find Mead with & . The search result may list several features and
several thumbtacks will appear. In the results list (left menu) scroll down until you find "Mead". You can
click on the check box next to "Mead" repeatedly to make the thumbtack appear and reappear (flash on and
off). As you zoom in, this will help you locate the crater. Alternatively, while increasing the zoom, turn on
names with "Nomenclature" (left menu) to identify the crater. Record its coordinates:
Coordinates: ___________________
Note the double-ringed structure of this crater. Find the diameter in km of the outer ring:
Diameter: __________________ km
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Question 23 (1 point)
Find Seymour, a medium-sized crater situated on the plains east of Beta Regio. Use the tool to
determine Seymour's diameter in km.
Diameter: ______________ km
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Question 24 (2 points)
Next, find the medium-sized crater Danilova. Note this crater's central peak. It is similar to peaks seen in
lunar craters of comparable size (~ 50 - 60 km). What are the names of nearby craters? What types of
craters are they? Remember, the basic types of craters are bowl shaped, flat floored, or central peak.
Names: ____________________
Types: ____________________
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Question 25 (2 points)
Pan to the east to find Carson crater. Note the dark "parabola" of material east of the crater. This material is
possibly ejecta carried by high-altitude winds. Sketch Carson and the area within approximately 100 km of
the crater in the space provided in your lab textbook. Either import it into the answer box below or scan or
take a digital picture of your sketch and attach it to an Email to your instructor.
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Question 26 (1 point)
Find the crater Adivar. This crater shows a prominent wind streak - material in the turbulent airflow
downstream from an elevated feature. What direction are the prevailing winds in this region? Explain your
reasoning.
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Question 27 (2 points)
Find the crater Balch and zoom in. This crater has been cut by a rift valley near Rhea Mons. Use the principle
of superposition with the crater and the rift valley to determine which is the older feature and which is the
younger feature. Explain your reasoning.
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Question 28 (1 point)
How is the volcanic and tectonic activity on Venus different from Earth?
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Question 29 (1 point)
Give some reasons why there are differences between the tectonic and volcanic activities on Venus and
Earth.
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