Geology Unit Review Vocabulary Crust Mantle Lithosphere Asthenosphere Outer core Inner core Plate tectonics Seismic waves Amplitude P-waves S-waves lag time Focus Epicenter Magnitude Intensity Convergent plate boundary Divergent plate boundary Transform plate boundary Subduction Minerals Rocks Sedimentary Igneous Metamorphic Extrusive igneous rock Intrusive igneous rock Plutons Sills Dikes Glacial erratic Esker Ore Smelting Tailings Surface mining Subsurface mining 1. Illustrate the rock cycle. Name___________________ 2. Rock that formed from molten rock is classified as ________________. 3. __________________ rock may contain fossils. 4. Plutons are composed of ______________ rock. 5. Sandstone and shale are _______ rock. 6. What is a glacial erratic? 7. What is an esker? 8. Give three examples of minerals. 9. Describe one way mountains in New England were affected by the ice age. 10. Obsidian is a glassy igneous rock. What does that tell you about how it formed? 11. Soil in Maine is generally glacial till. What does that mean? 12. Ice deposits ____ material. a. sorted; b. unsorted 13. Liquid water deposits _____ material. a. sorted; b. unsorted 14. The last ice age peaked about ________ years ago. 15. The last ice age ended in Maine about __________ years ago. 16. Rock A has large crystals and is light in color. Rock B has medium-sized crystals and is dark in color. What does this tell you about the two rocks? 17. How did sea level change as the ice age ended? 18. Describe how the shape of mountains in Maine was affected by glaciation. 19. Compare the speeds of P- and S- waves. 20. What happens when P-waves hit the outer core? 21. What happens when S-waves hit the outer core? 22. How do you find lag time? What is the purpose of finding lag time? (How is this information used?) 23. Compare and contrast how igneous, sedimentary and metamorphic rocks form. 24. –29 . For each of the following statements, determine if they are true or false. If they are false, change a word or phrase to correct them. 24. Plutons are intrusive igneous formations. 25. During the last ice age, ice sheets extended as far south as Cape Cod, MA. 26. Eskers are scratches left in the bedrock by moving glaciers. 27. Sandstone is an intrusive igneous rock. 28. Extrusive igneous rocks generally have large crystals. 29. Rocks are to minerals as flour and sugar are to baked goods. 30. Subduction zones occur along _____________plate boundaries. 31. ________________ are intrusive igneous formations that cut horizontally across the country rock. 32. Glacial till was deposited by: a. wind; b. glacial meltwater; c. glacial ice 33. Which of the following areas are particularly vulnerable to earthquakes. a. sills; b. eskers; c. plate boundaries; d. mantle; e. none of the above 34. Draw a diagram of the Earth and label the following. Inner core, mantle, lithosphere, outer core, crust, lithosphere 35. Describe how Blue Hill Mountain formed. Your answer should include a discussion of depth, plutons, country rock, weathering and erosion and these terms should be defined as part of your answer. 36. Give an example of a toxic substance that may be found in a spoil pile. 37. Describe another environmental problem that may result from mining activities. 38. List two rocks or other earth materials that are commercially mined in Maine today. 39. The Richter scale describes earthquake a. magnitude; b. intensity 40. If earthquake A is 6 on the Richter scale and earthquake B is 3 on the Richter scale, compare the amount of shaking and energy released by the two earthquakes.