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Geology 200A - Plate Tectonics Test, Nov 14 1996			Name:
(Please write legibly!)							
	Student #:

1) Illustrate a classic ophiolite sequence, and explain the origin of each unit; where 
would you go to visit such a sequence? (12):










2.) Where are the following located, and what Plate Tectonic significance do they hold 
(12):

	a) the Appalachians (4)


	c) the Afar Triangle - Red Sea (4)


	b) Macquarrie Island(4)


3.) Draw and annotate the following Plate Tectonic models: (24)

a) the Mariana island arc model (10))










b) the Western Newfoundland obduction model (7)			c) the 
Himalayan continental collision model (7)









4) 	Explain where and how the following are formed: (8)

	a) massive chromite (4)




	b) lead silver deposits (4)


										
			PTO





5)	What kinds of volcanic material are produced at the following localities? (8)

	a) Hawaii (2);						b) Martinique (2)



	c) Stromboli (2)						d) Vesuvius (2)



6) What are the characteristics of a eugeosyncline, and how would they be explained in 
terms of Plate Tectonic concepts. (6)








7) Expalin the nature of Transform Faults; why was their dicovery important in the 
development of Plate Tectonic theory. (6)









8) What is the role of water and oxygen in the : (12)

	mantle (3)



	ocean crust (3)



	subduction slip zones (3)



	island arcs (3)




9) What observations and/or ideas relevant to Plate Tectonic theory are associated with 
the following names: (12)

	a) Hess (4)



	b) Vine and Mathews (4)



	c) Dietz (4)



FIGURES

Figure 1. Plate Tectonics.

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