Assignment for Week 6(2)

docx

School

Wilmington University *

*We aren’t endorsed by this school

Course

305

Subject

Geology

Date

Feb 20, 2024

Type

docx

Pages

Uploaded by MegaInternet8972

Week 6 Assignment SCI 305 “Give it Some Thought” Questions Textbook pages 123-124: Refer to the accompanying diagrams illustrating the three types of convergent plate boundaries and complete the following: A.Identify each type of convergent boundary. 1. Oceanic-Continental boundary 2. Oceanic-Oceanic Boundary 3. Continental-Continental convergence B. On what type of crust do volcanic island arcs develop? The type developed are oceanic crusts. C. Why are volcanoes largely absent where two continental blocks collide? The two continental blocks are made of a thick layer of rock so the magma struggles to get through. D. Describe two ways in which oceanic–oceanic convergent boundaries differ from oceanic–continental boundaries. How are they similar? The oceanic-oceanic has two slabs of oceanic lithosphere whereas the oceanic continental has the lithosphere descending beneath the continental litho- sphere. Both processes make volcanoes. “Give it Some Thought” Questions Textbook pages 157-158: Complete #’s 3 a-d

Use the accompanying seismogram to answer the following questions: A. Which of the three types of seismic waves reached the seismograph first? The P-waves reached the seismograph first. B. What is the time interval between the arrival of the first P wave and the arrival of the first S wave? The time between in six minutes. C. Use your answer from Question b and the travel–time graph in Figure 5.14 to determine the distance from the seismic station to the earthquake. The distance is 4,200 kilometers. D. Which of the three types of seismic waves had the highest amplitude when it reached the seismic station? The surface waves had the highest amplitude. “Give it Some Thought” Questions Textbook pages 197-198: 1. Examine the accompanying photo and complete the following: A.What type of volcano is shown? What features helped you classify it as such? A composite cone; it’s bigger B. What is the eruptive style of such volcanoes? Describe the likely composition and viscosity of its magma. Interbedded lavas and pyroclastics are layers of volcanic material including lava and ash. A nuee ardente is a fast-moving flow of hot gases and ash down a volcano. Composite cones are formed from different types of magma, mainly silica-rich andesitic, but they can also have layers of basaltic lava and pyro- clastic material.

C. Which type of plate boundary is the likely setting for this volcano? At convergent plate boundaries, oceanic and continental plates collide, caus- ing one plate to be forced beneath the other, leading to geological activity like earthquakes and volcanic eruptions. D. Name a city that is vulnerable to the effects of a volcano of this type. Fujiyama, a volcano in Japan. 6. For each of the volcanoes or volcanic regions listed below, identify whether it is associated with a convergent or divergent plate boundary or with intraplate volcan- ism. Crater Lake Convergent Hawaii’s Kilauea Intraplate volcano Mount St. Helens Convergent plate East African Rift Divergent plate Yellowstone Intraplate volcano Mount Pelée Convergent plate Deccan Traps Intraplate volcano Fujiyama Convergent plate “Give it Some Thought” Questions Textbook pages 229-230: Complete #

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version

Access to all documents
Unlimited textbook solutions
24/7 expert homework help

4 Suppose that a sliver of oceanic crust were discovered in the interior of a continent. Would this refute the theory of plate tectonics? Explain. The discovery of a sliver of oceanic crust in the interior of a continent would not necessarily refute the theory of plate tectonics. Instead, it could be ex- plained by the process of subduction, where oceanic crust is pushed beneath continental crust at convergent plate boundaries. This could result in frag- ments of oceanic crust being carried into the continent through tectonic move- ments, supporting rather than refuting the theory of plate tectonics.

Assignment for Week 6(2)

Related Documents