is a major dissolved volatile constituent in both magmas and volcanic gasses

PHSC 210 Quiz 5

1. _____________ is a major dissolved volatile constituent in both magmas and volcanic gasses.
2. Which one of the following is NOT part of the continental margin?
3. A ___________ volcano is a broad, slightly domed mound composed mainly of basaltic lava flows.
4. Which ocean has the greatest average depth?
5. Guyots are ____________________.
6. Which of the following is NOT considered pyroclastic debris?
7. Which type of basaltic lava flow has a fairly smooth, unfragmented, ropy surface?
8. The layer in the ocean that is characterized by a rapid temperature change and marks the transition between the warm surface layer and the deep zone of cold water is known as the _____________.
9. A _________________ is a near surface, intrusive, igneous rock body that has been injected between sedimentary strata, resulting in arching of the overlying beds.
10. ______________ tend to increase the explosive potential of a magma body beneath a volcano.
11. Submarine canyons are found on the continental slope and are believed to have been created _____________.
12. Concerning the distribution of land and water, which of the following statements is true?
13. Minerals that crystallize directly from seawater are examples of ________________.
14. Which one of the following salts is most abundant in seawater?
15. What is the largest, known volcano in the solar system?
16. Kilauea and Mauna Loa in Hawaii are _________________.
17. An echo sounder operates by measuring the time required for a _______________.
18. The crests of mid‐oceanic ridges ________________.
19. Which region has the greatest concentration of currently active volcanoes?
20. Which of the following best describes volcanism in the Andes Mountains of South America?

dissolved volatile constituent

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