GEL 1008: Lab 7 help

GEL 1008
PHYSICAL GEOLOGY

Physical Geology Helpful Lab Hints

Exercise 10: Glaciers

Problem 2a (3-5)

Stereo photo! You can look at the photo image in 3-D if you want to (it is not necessary to complete the lab). We have stereo glasses in the lab. Turn the lab book sideways. Place glasses over the photos so that your nose is directly over one of the white lines. Follow the instructions in the lab book on pages 121-123.
Click here for a labeled version of the aerial photo.

See the labeled version of Fig 10.9.
- part 1: It looks like a bite has been taken out. Check out Section 14.2, part D in the textbook.
- part 2: Compare the sediment to the right of the "bite" to the features shown in your textbook in Sections 14.4, 14.5, 14.6, 14.10, and 16.9
See lab book page 185 and text book page 404.
- part 3: Medial moraines form when two glaciers merge. The glacial ice does not mix, so the white streaks represent tributary glaciers.
What "zone" is at the front of the glacier? What is happening there? What remains? See lab book pages 185-187 and text book Sections 14.4, 14.5, 14.6.

Problem 3

(1) Think about it. (a complete answer will include two of the three choices) Which of the three choices would result in a pile of sediment being deposited? After a pile had been created, which of the three choices would result in the recently created pile of sediment being preserved (and provide the opportunity to create a second, parallel pile of sediment)? (3) The answer is realted to the answer for (1).
These are all features created by meltwater. Think about where the ice was, the features meltwater would create, and where the meltwater would go.
See page 187 in the Lab Book and Section 14.5, part C in the textbook.