1. When all the grains in a rock are roughly the same size, the rock is said to be _______.
B) well sorted
2. Sediment that is carried and deposited by the wind is known as _______ sediment.
E) eolian
3. The figure above shows what type of sedimentary rock?
B) biogenic
4. A _______ is a sedimentary deposit that forms where a stream enters a standing body of water.
A) delta
5. _______ is the reduction of pore space in sediment as a result of the weight of the overlying sediments.
B) compaction
6. A turbulent, gravity driven flow consisting of water and sediment is known as a _______.
C) turbidity current
7. Which of the following is a type of sedimentary rocks formed by the precipitation of minerals dissolved in a lake, river, or seawater?
C) chemical
8. According to the figure above, _______ is the temperature at which melting starts.
D) 800ºC
9. ______________ refers to the range of sediment grain sizes in a rock. Well __________ means the grain sizes in the rock are all the same, whereas poorly ______________ means there is a wide range of sizes represented.
B) Sorting, sorted, sorted
10. ________________refers to how close the grains are to being perfectly spherical. The range of ________________ is from angular to round.
C) Roundness, roundness
11. Mudcracks are sedimentary structures that are formed in wet/dry environments.
TRUE
12. A semi-enclosed body of coastal water where fresh water mixes with marine water is known as a delta.
FALSE
13. The figure above shows a sedimentary structure that is formed by wind.
FALSE
14. Coal is a classified as a chemical sedimentary rock.
FALSE
15. Metamorphic rocks can occur from sedimentary and igneous rocks.
TRUE
16, ____________ is the process in which substances dissolved in pore water are precipitated out and join grains together. CEMENTATION
17. Most of the sediment on land is transported by _______. RIVERS
18. Seasonal lakes that form in arid areas are known as _______. PLAYAS
19. ______ grade metamorphic rocks are changed under temperatures of less than 400°C and pressures of less than 400MPa. LOW
20. Rocks that are metamorphosed at temperatures and pressures higher than 400°C and 400MPa respectively are known as _______ grade . HIGH
21. _______ is the metamorphic rock that results from the metamorphism of limestone. MARBLE
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