Dynamic Earth Quiz. 4. The accompanying diagram shows some features of Earth s crust and upper mantle.

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1 DO NOT WRITE ON THIS Dynamic Earth Quiz DO NOT WRITE ON THIS 1. Base your answer(s) to the following question(s) on the diagram below. The diagram shows a model of the relationship between Earth s surface and its interior. 4. The accompanying diagram shows some features of Earth s crust and upper mantle. Which model most accurately shows the movements (arrows) associated with the surface features shown in the diagram? Mid-ocean ridges (rifts) normally form where tectonic plates are converging diverging stationary sliding past each other 2. Compared to the continental crust, the oceanic crust is thicker more dense more granitic more felsic 3. Which feature is commonly formed at a plate boundary where oceanic crust converges with continental crust? a mid-ocean ridge an ocean trench a transform fault new oceanic crust page 1

2 5. Base your answer(s) to the following question(s) on the cross section below, which shows the boundary between two lithospheric plates. Point X is a location in the continental lithosphere. The depth below Earth s surface is labeled in kilometers. 7. Which block diagram best represents the relative direction of plate motion at the San Andreas Fault? Point X is located in which Earth layer? rigid mantle stiffer mantle asthenosphere outer core 6. Which features are commonly formed at the plate boundaries where continental crust converges with oceanic crust? large volcanic mountain ranges parallel to the coast at the center of the continents a deep ocean trench and a continental volcanic mountain range near the coast an underwater volcanic mountain range and rift valley on the ocean ridge near the coast long chains of mid-ocean volcanic islands perpendicular to the coast DO NOT WRITE ON THIS page 2 Dynamic Earth Quiz

3 8. Base your answer(s) to the following question(s) on the diagram below, which shows a portion of Earth s interior. Point A is a location on the interface between layers. 9. Base your answer(s) to the following question(s) on the map of the Mid-Atlantic Ridge shown below. Points A through D are locations on the ocean floor. Line XY connects locations in North America and Africa. The arrows shown in the asthenosphere represent the inferred slow circulation of the plastic mantle by a process called insolation convection conduction radiation The boundary between which two tectonic plates is most similar geologically to the plate boundary at the Mid-Atlantic Ridge? Eurasian and Indian-Australian Cocos and Caribbean Pacific and Nazca Nazca and South American DO NOT WRITE ON THIS page 3 Dynamic Earth Quiz

4 10. Base your answer(s) to the following question(s) on the map below. The map represents the movement of tectonic plates that resulted in the collision of India with Asia. Scientists believe that 71 million years ago, India was at position 11. Which cross section below best represents the crustal plate motion that is the primary cause of the volcanoes and deep rift valleys found at midocean ridges? Which present-day geologic feature in Nepal resulted from this collision? a rift valley a mountain range an oceanic ridge an oceanic trench 12. The actual temperature at the boundary between the stiffer mantle and the outer core is estimated to be approximately 1.5 C 250 C 3000 C 5000 C 13. The inferred temperature and pressure of Earth s interior at a depth of 3,000 kilometers are approximately 1000 C and 0.5 million atmospheres 1000 C and 1.0 million atmospheres 5000 C and 1.5 million atmospheres 5000 C and 3.0 million atmospheres DO NOT WRITE ON THIS page 4 Dynamic Earth Quiz

5 14. Base your answer(s) to the following question(s) on the cross section below, which shows the boundary between two lithospheric plates. Point X is a location in the continental lithosphere. The depth below Earth s surface is labeled in kilometers. 15. Base your answer(s) to the following question(s) on the map below, which shows the location of the Peru- Chile Trench. Between which two lithospheric plates could this boundary be located? South American Plate and African Plate Scotia Plate and Antarctic Plate Nazca Plate and South American plate African Plate and Arabian Plate The Peru-Chile Trench marks the boundary between the Pacific Plate and the Antarctic Plate Nazca Plate and the South American Plate North American Plate and the Cocos Plate Caribbean Plate and the Scotia Plate DO NOT WRITE ON THIS page 5 Dynamic Earth Quiz