Essentials of Geology (Fifth Edition)
5th Edition
ISBN: 9780393263398
Author: Stephen Marshak
Publisher: W. W. Norton & Company
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Question
Chapter 5, Problem 1RQ
To determine
The products of volcanic eruptions.
Expert Solution & Answer
Answer to Problem 1RQ
The thermal energy inside the earth is leads to volcanic eruption, and lava flows, pyroclastic debris, and gas are all the byproducts of magma.
Explanation of Solution
A volcanic eruption brings materials from inside the earth to surface of the earth.
The three different kinds of products of an eruption are lava flows, pyroclastic debris, and gas. Lava is molten rock, lava flows downward through the sides of the volcano like a condensed liquid, and lava gets cooled on the ground.
Pyroclastic debris is seen as ash, lapilli (plum sized material), blocks (fragments of pre-existing rocks), bomb (apple sized rock material). When the volcanic eruption happens, which sends volcanic gases into the atmosphere and the gases eruption are water vapor, carbon dioxide, sulfur dioxide, hydrogen sulfide, carbon monoxide.
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PlEaSe HeLp As SoOn As PoSsIbLe
Identify and label examples of a point bar, a cutbank, and an oxbow lake on the stereogram in Figure 8.11.
Which of the following is NOT a natural reservoir for water?
trees, lakes, creeks, rivers, atmosphere
1. Draw an arrow on the map to indicate the direction that the main river, the Genesee, is flowing. (Hint: Use the elevations of the two bench marks [BM] next to the river near the top and bottom of the map to determine your answer.)
2. Use the BM elevations from Question 1 to calculate the approximate gradient of the Genesee River.
3. Use Figure 8.9 to draw a profile along line A-A". Use only index contour lines.
4. Approximately how many feet is the Genesee River above sea level?
5. The path of the Genesee River can best be described as which of the following: a straight course or a meandering course?
6. Which phrase most accurately describes most of the areas beyond the Genesee River Valley: very broad and flat or relatively hilly and dissected?
7. Use the fractional scales on the Angelica topographic map and the Portage, Montana, map (page 136) to answer the following.
a. What is the fractional scale for the Angelica map?
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Chapter 5 Solutions
Essentials of Geology (Fifth Edition)
Ch. 5.2 - Prob. 1DYEWCh. 5.2 - Prob. 1QQCh. 5.3 - Prob. 1QQCh. 5.4 - Prob. 1QQCh. 5.5 - Prob. 1QQCh. 5.6 - Prob. 1DYEWCh. 5.6 - Prob. 2DYEWCh. 5.6 - Prob. 1QQCh. 5.7 - Prob. 1QQCh. 5.8 - Prob. 1DYEW
Ch. 5.8 - Prob. 1QQCh. 5 - Prob. 1RQCh. 5 - Prob. 2RQCh. 5 - Prob. 3RQCh. 5 - Prob. 4RQCh. 5 - Prob. 5RQCh. 5 - Prob. 6RQCh. 5 - Prob. 7RQCh. 5 - Prob. 8RQCh. 5 - Prob. 9RQCh. 5 - Prob. 10RQCh. 5 - Prob. 11OFTCh. 5 - Prob. 12OFTCh. 5 - Prob. 1ILRQCh. 5 - Prob. 2ILRQCh. 5 - Prob. 3ILRQCh. 5 - Prob. 4ILRQCh. 5 - Prob. 5ILRQCh. 5 - Prob. 6ILRQCh. 5 - Prob. 7ILRQCh. 5 - Prob. 8ILRQCh. 5 - Prob. 9ILRQ
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