Plate Tectonic Assignment
Plate Tectonic Assignment
1. The Juan de Fuca and Cocos plates were once part of a much larger plate called the _________ plate.
2. How long ago was this plate the dominate plate?
3. What plate(s) are the remnants of this former plate?
4. What kind of plate boundary exists between the Juan de Fuca and the North American plate?
5. What kind of plate boundary exists between the Pacific plate and the North American plate?
6. What tectonic process is ongoing between Baja California and the North American plate (Mexico)?
7. If the rate of divergence between the Pacific plate is less than the rate of subduction of the Juan de Fuca plate, predict the future of the Juan de Fuca plate 30 - 40 million years from now?
8. What are the three types of convergent boundaries and a geographic location of each?
a.
b.
c. …show more content…
b.
c.
9. List some of the different types of evidence that Alfred Wegner used for his theory of "Continental Drift"?
10. What was Harry Hess' major contribution to the understanding of Plate Tectonics?
This a map showing the distribution of earthquakes from 1990 to 1996. A similar map is on page 54 in your text.
11. Are the earthquakes randomly distributed?
12. Are the volcanoes randomly distributed over the globe?
13. What is the age of the oldest sea floor?
14. In the Atlantic Ocean, where is the oldest sea floor?
15. Where is the youngest sea floor in the Atlantic?
16. Look at the west coast of South America. What is the pattern of the age of the ocean floor as you go west? (does it get younger or
17. What, if any correlation is there between the distribution of earthquakes, volcanoes and plate boundaries?
18. What kind of plate boundary is in the middle of the Atlantic Ocean?
19. Why is the sea floor so young in this region? ( This can be answered in just one or two sentences.)
20. What kind of boundary is at the west coast of South America?
Answers: • Farallon
1. The Juan de Fuca and Cocos plates were once part of a much larger plate called the _________ plate.
2. How long ago was this plate the dominate plate?
3. What plate(s) are the remnants of this former plate?
4. What kind of plate boundary exists between the Juan de Fuca and the North American plate?
5. What kind of plate boundary exists between the Pacific plate and the North American plate?
6. What tectonic process is ongoing between Baja California and the North American plate (Mexico)?
7. If the rate of divergence between the Pacific plate is less than the rate of subduction of the Juan de Fuca plate, predict the future of the Juan de Fuca plate 30 - 40 million years from now?
8. What are the three types of convergent boundaries and a geographic location of each?
a.
b.
c. …show more content…
b.
c.
9. List some of the different types of evidence that Alfred Wegner used for his theory of "Continental Drift"?
10. What was Harry Hess' major contribution to the understanding of Plate Tectonics?
This a map showing the distribution of earthquakes from 1990 to 1996. A similar map is on page 54 in your text.
11. Are the earthquakes randomly distributed?
12. Are the volcanoes randomly distributed over the globe?
13. What is the age of the oldest sea floor?
14. In the Atlantic Ocean, where is the oldest sea floor?
15. Where is the youngest sea floor in the Atlantic?
16. Look at the west coast of South America. What is the pattern of the age of the ocean floor as you go west? (does it get younger or
17. What, if any correlation is there between the distribution of earthquakes, volcanoes and plate boundaries?
18. What kind of plate boundary is in the middle of the Atlantic Ocean?
19. Why is the sea floor so young in this region? ( This can be answered in just one or two sentences.)
20. What kind of boundary is at the west coast of South America?
Answers: • Farallon