Geology Lab Exam II Questions and Answers 2024 with complete solution
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Geology Lab Exam II Questions and Answers 2024 with complete solution
A topographic map has a ratio scale of 1:250,000. One centimeter on the map equals _____ kilometers in the real world.
2.5
Assuming a contour interval of 50 feet, what is the elevation of the centermost contour line in this ...
Geology Lab Exam II Questions and Answers 2024 with
complete solution
A topographic map has a ratio scale of 1:250,000. One centimeter on the map
equals _____ kilometers in the real world.
2.5
Assuming a contour interval of 50 feet, what is the elevation of the centermost
contour line in this figure? Please observe that the first contour line has an
elevation of 100 feet above sea level.
300 feet
Use the Public Land Survey System to locate the X out to three quarters. Assume
that it is located in Township 1N and Range 3E.
NE 1/4, NE 1/4, NW 1/4, Sec. 32, T1N, R3E
What information do contour lines provide?
elevation above sea level
Using the topographic map in the figure, follow along line X-X' and determine
what the topographic profile would look like. Choose the appropriate profile
below.
Answer: B
On this map, what is the change in elevation between two adjacent index contour
lines? (Answer to the nearest foot.)
200 feet
What is the change in elevation across each contour interval (i.e., between
successive "regular" contours) on this map?
40 feet
Which of the following statements best describes the topography around
placemark A and the resulting appearance of the spacing of the contour lines on
the map?
The land surface is relatively flat, and the contours are widely spaced.
In which direction do the Vs formed by the contour lines point as a stream
crosses them?
Upstream
What are the elevations of placemarks G and H respectively?
5540 feet; 5930 feet, respectively
Using the change in elevation from Part D, calculate the straight-line gradient
between placemarks G and H. Calculating the slope here is exactly the same as in
geometry, divide rise over run.
0.795
Which answer most correctly describes the landform at placemark I and the
appearance of the contour lines in the area?
The landform is a ridge, and the contour lines form Vs that point downslope.
Which answer most correctly describes the landform at placemark J and the
appearance of the contour lines in the area?
, The landform is a flat-topped hill, or peak, called a butte. The contour lines form
concentric closed loops around the high point.
Which was updated more recently, the topographic map or the satellite imagery?
How can you tell?
The satellite imagery was updated more recently. This is evidenced by roads and
buildings that appear in the satellite imagery but not on the topographic map.
The latitude-longitude coordinate system provides reference lines from which to
measure the location of a point on Earth's surface. For example, Point A is
located at 20° north latitude and 120° west longitude.
Now determine the latitude and longitude of Point B.
40 degrees south; 20 degrees west
A common size of U.S. Geological Survey map is a 15-minute quadrangle map,
which measures 15 minutes of latitude by 15 minutes of longitude. Below you will
use the latitude and longitude of one corner of a 15-minute quadrangle map to
determine the latitude and longitude of another corner.
Point B is located at 40° south latitude and 20° west longitude. Assuming that
Point B is at the northwest corner of a 15-minute quadrangle map, what is the
latitude and longitude of the southeast corner of the map?
40 degrees 15' south latitude, 19 degrees 45' west longitude
Launch Google Earth™ by clicking on this link to locate the Starved Rock Lodge
at Starved Rock State Park, Illinois. If you do not have Google Earth installed,
download it at http:/www.google.com/earth/index.html and install it on your
computer before you begin.
In the Layers Panel on the lower right, make sure the Borders and Labels and
Places boxes are checked.
Using Placemark A, which of the following is the best estimate of the latitude and
longitude of the park in degrees, minutes and seconds?
41 degrees 18' 20 N, 88 degrees 58' 29 W
What is the elevation of the Starved Rock State Park, Illinois? Use Placemark A as
reference point. If your elevation in Google Earth™ is any unit besides feet, go to
"Tools" > "Options" and change the "Unit of Measurement" unit to "Feet, Miles".
635 feet
Locate the Starved Rock State Park, Illinois. Adjust the zoom so you can see both
the lodge and Plum Island, which is northwest of the lodge. What is the
approximate distance between the campground and the northwestern tip of Plum
Island?
2.1 miles
In the Universal Traverse Mercator System, the distance measured in meters from
the Equator is the ____________ coordiante
northing
The difference in degrees between due north and magnetic north for a location is
that location's ______________.
declination
In the U.S. Public Land Survey System, the north-south squares are called
__________ and the east-west squares are called ____________.
townships, ranges
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