Lab 7 - Leslie Martinez
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Northern Arizona University *
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150
Subject
Geography
Date
Feb 20, 2024
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docx
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Lab 7: Leslie Martinez
Part 1: Identifying Glacial Features and Landforms
Using these pictures, identify which letter (A-P) best matches each of the listed glacial features below.
Each feature is shown just once in the pictures.
https://canvas.nau.edu/courses/6446/files/4260764?wrap=1
1.
Arete -
L
2.
Braided stream
-
H
3.
Cirque
-
B
4.
Col
-
A
5.
Glacial trough
-
O
6.
Hanging valley
-
N
7.
Horn
-
K?
8.
Ice block
-
P
9.
Kettle
-
I
10. Lateral moraine
-
D
11. Medial moraine
-
E
12. Outwash plain
-
G
13. Tarn
-
M
14. Till
-
J?
15. Tributary Glacier
-
C
16. Trunk Glacier
-
F
Lab 7: Leslie Martinez
Part 2:
Global Soil Distribution
1.
Distribution of Oxisols
a.
What is the northern latitude limit of this soil order? 20N
b.
What is the southern latitude limit of this soil order? 30S
c.
What two latitude zones does this latitudinal range span (see Figure 2.11 in your textbook) Tropical and Equatorial
2.
Distribution of Ultisols
a.
What is the northern latitude limit of this soil order?
40N
b.
What is the southern latitude limit of this soil order?
40S
c.
Which two latitude zones (Figure 2.11) does this latitudinal range span in addition to the two identified for question 1c? Tropical and Equatorial
3.
In the US, what clay rich soil order is only extensively found in southeast Texas?
-
Vertisols
4.
Distribution of the four major Alfisol suborders
a.
Which Alfisol suborder is only found in Boreal forest regions of the northern hemisphere? - Boralfs
b.
Between the Udalf and Ustalf suborders, which is found in warmer climates? - Ustalf
c.
Which Alfisol suborder is found in areas with a Mediterranean climate (in
the northern hemisphere, this is the northern Mediterranean coast and much of California)? - Xeralfs
5.
Which soil order has a high content of mineral quartz and is primarily associated with
areas covered by the great northern hemisphere ice sheets of the Pleistocene Epoch? -
- Oxisols soil
6.
Which soil order is associated with major grassland regions?
Lab 7: Leslie Martinez
-
Mollisols?
7.
Which soil order is associated with major desert regions?
-
Aridisols
8.
The world soil map does not include Histosols, Entisols, Inceptisols, and Andisols because these are of local occurrence. Which of these:
a.
would you find on recent volcanic ash? -
Andisols
b.
would you find in a peat bog? -
Histosols
c.
would you find on a very recent sedimentary deposit (no B horizon)? - Entisols
d.
would you find on a relatively recent sedimentary deposit (B horizon starting to form)? - Inceptisols Part 3: Carbon and Nitrogen Cycles
Using Figures 16.6 and 16.9 in your textbook, which illustrate Earth's carbon and nitrogen cycles, identify whether each process described below applies to carbon or nitrogen.
1.
Stored in carbohydrates and used as fuel for producers, consumers, and decomposers - Carbon
2.
Returned to the atmosphere by burning or combustion - Carbon
3.
Removed from the atmosphere and stored in carbohydrates by photosynthesis -
Carbon
4.
Transported into marine and aquatic ecosystems by runoff - Nitrogen
5.
Converted from many forms by decomposers into ammonia -
Nitrogen
6.
Stored in natural gas and oil deposits probably formed from the burial of marine organisms in the geological past - Carbon
7.
Returned to the atmosphere by denitrifying bacteria - Nitrogen
8.
Converted to ammonia (fixed) by nitrogen-fixing algae, bacteria, and legumes - Nitrogen
9.
Returned to the atmosphere or to water by the weathering of limestone - Carbon
10.
Stored in coal deposits formed from bodies of ancient trees that did not fully decay before they were buried - Carbon
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