Lab Exercise 7

Physical Geology Helpful Lab Hints

Exercise 7: Aerial Photos

Problem 1
(You will need to check out the stereo viewing glasses from the help window in the Bio Lab.)

a. Tear out the page with the photos on it (you have to turn it in) and compare the volcano to the two shown the map. (You may have to turn the photos.)
b. Hint: Which way is north on the map?
c: Hint: Find features on the edges of the photo, locate them on the map, and use them as a guide.
d: Hint: Where are the shadows? Remember, the top of the volcano is a bowl-shaped crater.
e:
- Find two features on the map that are 1 mile apart (or 1/2 mile apart). (Use the scale on the map)
- Find the same features on the photo and measure the distance between them with a ruler (in inches).
- Your scale will be: ruler distance (in inches) = 1 mile (or 1/2 mile).
f: Easy question. (Remember which direction is north.) Remember to explain your answer.
g: What do you see? You really need to look through the glasses to see this.
h: Follow the directions on page 103 & 105 in Lab 6.
i: Measure the width on the map or profile (use the map scale, it's good for both). Measure the height by using the contour lines on the map or the vertical scale on the profile.
j. Review textbook Chapter 9 on volcanoes.