Class: Date: Earth Systems 3209: Unit 3-4 Review Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Z is a volcano fed from a magma chamber nearby location Y. If the contential crust at X is granite, which type of metamorphic rock would be found at Y? a. gneiss b. rhyolite c. basalt d. marble 2. Which most likely forms due to high temperature and pressure? a. limestone b. conglomerate c. halite d. quartzite 3. Which metamorphic rock has a foliated texture? a. limestone b. shale c. schist d. chert 4. Which texture is shown in the metamorphic rock below? a. aphanitic b. foliated c. phaneritic d. vesicular 5. Which causes a pre-existing rock to experience change when exposed to high heat, chemically active fluids and relatively low pressure? a. folding b. cementation c. regional metamorphism d. contact metamorphism 6. Which is the main factor causing contact metamorphism? a. original rock b. heat c. chemically active fluids d. pressure 7. What rock forms when a pre-existing rock is altered as a result of heat and pressure? a. igneous b. metamorphic c. mineral d. sedimentary 8. Metamorphose of which rock will form gneiss? a. marble b. sandstone c. granite d. halite 1
9. Which is the correct sequence in the metamorphism of shale? a. phyllite gneiss slate schist b. phyllite slate gneiss schist c. slate phyllite schist gneiss d. slate schist phyllite gneiss 10. Which is the correct sequence for a rock being metamorphosed? a. gneiss phyllite b. limestone marble c. quartzite sandstone d. slate shale 11. Quartz sandstone is held together with a cement that causes the rock to appear red. Which is the chemical composition of the cement? a. CaCo 3 b. Fe 2 O 3 c. MnO d. SiO 2 12. Which rock type consists of rounded particles formed from gravel deposited far from the source of weathering? a. conglomerate b. sandstone c. breccia d. shale 13. Which is the method of classification for clastic sedimentary rocks? a. crystal size and compostition b. particle size and shape c. biochemical and inorganic d. density and recrystalization 14. Which is a clastic sedimentary rock? a. conglomerate b. travertine c. coquina d. chert 15. Which best describes the relationship between a stream s velocity and the size of the largest particles that it can carry downstream? a. the faster the river, the smaller the particles b. the slower the river, the smaller the particles c. the speed of the river makes no difference d. the speed only affects sand particles 16. At which point below would the coarsest sediment be located? a. A b. B c. C d. D 2
17. Which diagram shows a well-sorted sediment? a. b. c. d. 18. Which best represents the phrase poorly sorted when describing sediment? a. composed of only one type of mineral b. contains grains of similar size c. contains grains of different sizes d. composed of distinct bedding planes 19. Which rock is formed by the lithification of silt and clay? a. breccia b. conglomerate c. sandstone d. shale 20. Which rock most likely has small (< 2.0 mm) grains of quartz held together by iron rich cement? a. blak quartzite b. fossil limestone c. garnet schist d. red sandstone 21. Which rock type forms in a shallow marine environment? a. intrusive igneous b. metamorphic c. plutonic igneous d. sedimentary 22. Which is an evaporite? a. gypsum b. siltstone c. coquina d. sandstone 23. Which chemical sedimentary rock is commonly found in caves? a. dolomite b. gypsum c. sylvite d. travertine 24. Which mineral forms in a hot, shallow marine environment? a. feldspar b. gypsum c. olivine d. quartz 25. Which is a form of limestone? a. halite b. gypsum c. sylvite d. travertine 26. Which rock contains the remains of shelled organisms? a. coquina b. gypsum c. halite d. travertine 27. Which rock is made up of calcium carbonate secreted from coral? a. limestone b. chert c. coal d. sylvite 28. Which is the correct sequence for the formation of coal? a. lignite, anthracite, peat, bituminous b. peat, bituminous, lignite, anthracite c. lignite, peat, anthracite, bituminous d. peat, lignite, bituminous, anthracite 29. Which is a biochemical sedimentary rock? a. bituminous coal b. shale c. sandstone d. quartzite 3
30. In which locality would coal deposits most likely form? a. continental shelves b. deltas c. fjords d. swamps 31. Which is the most efficient form of coal? a. peat b. lignite c. bituminous coal d. anthracite coal 32. Where would chert most likely form? a. swamp b. shallow marine c. beach d. deep marine Short Answer 1. What visual clues can tell you that granite is the parent of gneiss? 2. Metamorphic rocks undergo changes from their parents. (i) Why are metamorphic rocks more dense then their parents? (ii) Why do the metamorphic rocks often contain different minerals than their parents? 3. Quartzite is non-foliated while slate is foliated. Considering their parents, why might this be the case? 4. Label the following diagram to show where regional metamorphism would most likely occur. Explain your choice. 5. Why would the type of rocks found at location A and B be different? Explain and give an example of the rocks found at each location. 6. Why would the type of rocks found at location C and D be different? Explain and give an example of the rocks found at each location. 7. Limestone comes in a variety of forms. Explain the difference between two forms of limestone. 8. Deep oceans are a poor place for clastic rocks to form but are great for chemical and biochemical rocks. Explain why this is the case. 9. Explain why halite can be considered either a rock or a mineral, whereas coal is solely a rock. 4
Earth Systems 3209: Unit 3-4 Review Answer Section MULTIPLE CHOICE 1. A 2. D 3. C 4. B 5. D 6. B 7. B 8. C 9. C 10. B 11. B 12. A 13. B 14. A 15. B 16. A 17. A 18. C 19. D 20. D 21. D 22. A 23. D 24. B 25. D 26. A 27. B 28. D 29. A 30. D 31. D 32. D SHORT ANSWER 1.? 2.? 3.? 4.? 5.? 6.? 7.? 8.? 9.? 1