front 1 Most sediment is formed by _________. | back 1 settling out of a fluid |
front 2 Probably the single most characteristic feature of sedimentary rocks is________. | back 2 layers |
front 3 Why do most sediments end up being deposited in oceans instead of other parts of the Earth? | back 3 Because running water is the most important way to transport sediment and it is the lowest areas of the planet, usually large. |
front 4 Explain why sedimentary rocks are particularly important in studying the past history of the Earth. | back 4 Because studying what happens at the coast, in rivers, or in the desert can help people figure out how landscapes change and sedimentary rocks and fossils are formed. |
front 5 Which of the following is an economically important sedimentary rock? | back 5 coal |
front 6 Which of the following pairs are likely products of weathering granite? | back 6 clay and quartz |
front 7 Which of the following is not a product of the chemical weathering of potassium feldspar? | back 7 iron oxide |
front 8 Detrital sedimentary rocks are typically classified on the basis of their _________. | back 8 particle size |
front 9 Breccia, a rock with angular particles, is likely to have traveled _________. | back 9 only a short distance |
front 10 When sand lithifies, the resulting tock is commonly called _________. | back 10 sandstone |
front 11 The most common sedimentary rock is ___________. | back 11 shale |
front 12 Silts and clays are commonly deposited in lakes, lagoons, swamps, and marine environments because __________. | back 12 those settings have relatively still water |
front 13 Chemical sedimentary rocks form from materials _________. | back 13 carried in solution |
front 14 Limestone is formed primarily through __________. | back 14 biochemical sediments secreted by marine organisms |
front 15 Chalk forms from _________. | back 15 the hard parts of microscopic organisms that accumulate on the sea floor |
front 16 Which one of the following is not related to chemical weathering? | back 16 frost wedging |
front 17 Chemical weathering would be most effective __________. | back 17 in a warm, humid climate |
front 18 Death Valley is a site where _________sedimentary rocks are common. | back 18 evaporative |
front 19 An important condition for the formation of coal is __________. | back 19 incomplete decomposition of organic matter due to a lack of oxygen |
front 20 Which rock type is associated with a high-energy environment (such as a very turbulent stream)? | back 20 conglomerate |
front 21 Detrital sediments would predominate in all of the following environments except _________. | back 21 salt flat |
front 22 Compaction would probably be most significant as lithification process for ____________. | back 22 shale |
front 23 The most abundant chemical sedimentary rock is ____________. | back 23 limestone |
front 24 Which of the following best describes bedded gypsum and rock salt? | back 24 evaporates; chemical, sedimentary rocks |
front 25 Coal beds originate in __________. | back 25 freshwater coastal swamps and bogs |
front 26 The common source of pressure during compaction of sediments is __________. | back 26 the weight of the sediments deposited above the compacting sediments |
front 27 Which word does not fit the pattern? | back 27 lithification |
front 28 Rock salt and rock gypsum are common examples of a group of chemical sedimentary rocks called ___________. | back 28 evaporities |