Test 2 Ch.4-8

61 Questions  I  By Mikeria561 on October 21, 2012

  

Question Excerpt

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1.  Which of the following igneous rocks exhibit aphanitic texture?
A.
B.
C.
D.
2.  A_______ is a intrusive, igneous rock body that is tabular and concordant.
A.
B.
C.
D.
3.  Kilauea is an example of a __________.
A.
B.
C.
D.
4.  Which sedimentary rock consists of clay and fine silt size particles?
A.
B.
C.
D.
5.  Why would a plume of solid silicate rock rising slowly from deep in the mantle begin melting as it neared the base of the lithosphere?
A.
B.
C.
D.
6.  Why does “an increase in” minerals that did not exist in the “parent rock” form during metamorphism of a rock (e.g., garnet in schist)?
A.
B.
C.
D.
7.  The Columbia Plateau in Washington and Oregon is_______.
A.
B.
C.
D.
8.  The radioactive isotopes Uranium-238, Uranium-235, and Thorium-232 eventually decay to different, stable, daughter isotopes of -
A.
B.
C.
D.
9.  Why is the humus layer typically thicker in a cool, temperate, forest soil than in a tropical rainforest soil?
A.
B.
C.
D.
10.  Lava flows are typically finer grained than intrusive igneous rocks. Why?
A.
B.
C.
D.
11.  Which type of basaltic lava has a fairly smooth, unfragmented ropey surface?
A.
B.
C.
D.
12.  The ____ is the idea or concept that ancient life forms succeeded each other in a definite, evolutionary pattern and that the contained assemblage of fossils can determine geologic ages of strata?
A.
B.
C.
D.
13.  Assuming that water filling a crack in a rock undergoes cycles of freezing and melting. Which of the following statements is true?
A.
B.
C.
D.
14.  A________ forms at very high pressures and moderately low temperatures associated with subduction of oceanic crust and sediments.
A.
B.
C.
D.
15.  What is the most important factor for whether magma cools slowly or quickly?
A.
B.
C.
D.
16.  ____ refers to the process of fossilization where the internal cavities and pores of the original organism are filled with precipitated mineral matter.
A.
B.
C.
D.
17.  Which is the greater erosive force: wind or water?
A.
B.
C.
D.
E.
18.  Which best describes the “soil profile” and its relevance to weathering?
A.
B.
C.
D.
19.  Which statement concerning mechanical weathering is NOT true?
A.
B.
C.
D.
20.  During metamorphism, what is the major effect of chemically active fluids?
A.
B.
C.
D.
21.  Which of the following sedimentary rocks would you expect to have originally been deposited by fast-moving streams?
A.
B.
C.
D.
22.  ____ forms from the metamorphism of limestone or dolostone
A.
B.
C.
D.
23.  If you knew the metamorphic facies of a metamorphic rock (example: Zeolite), what can you deduce about the rock?
A.
B.
C.
D.
24.  The most violent volcanic activity is associated with __________.
A.
B.
C.
D.
25.  Sedimentary rocks compose approximately _______ percent of Earth's outermost 10 miles.
A.
B.
C.
D.
26.  Why do magmas rise toward Earth's surface?
A.
B.
C.
D.
27.  ____, a common mineral found in igneous rocks, is the most abundant mineral in detrital sedimentary rocks.
A.
B.
C.
D.
28.  A sedimentary facies is the sedimentary rock’s ________.
A.
B.
C.
D.
29.  What two factors speed up rates of chemical reaction and weathering in rocks and soils?
A.
B.
C.
D.
30.  Which of the following is associated with deep mantle hot spots?
A.
B.
C.
D.
31.  How do you classify sedimentary rocks?
A.
B.
C.
D.
E.
32.  Oolitic limestone is most likely to form in what type of depositional environment?
A.
B.
C.
D.
33.  Which of the following best describes sets of fractures in relatively fresh bedrock, such as granite, that are roughly parallel to the land surface?
A.
B.
C.
D.
34.  Which of the following rocks is likely to have the most quartz within it and why?
A.
B.
C.
D.
35.  Which response best represents the conditions of contact metamorphism?
A.
B.
C.
D.
36.  ________ is the most common type of chemical sedimentary rock.
A.
B.
C.
D.
37.  This dense, nonfoliated metamorphic rock is produced most often from sandstone.
A.
B.
C.
D.
38.  Which response lists the rocks in increasing grade of metamorphism?
A.
B.
C.
D.
39.  Frost wedging is the major weathering process contributing to the formation of which regolith material?
A.
B.
C.
D.
40.  Detrital grains of which minerals are extremely rare in detrital sediments? Why?
A.
B.
C.
D.
41.  What volcanic events formed Crater Lake, OR? When did it happen?
A.
B.
C.
D.
42.  Which are sedimentary rocks?
A.
B.
C.
D.
E.
43.  What do pumice and obsidian have in common?
A.
B.
C.
D.
44.  Paricutin is an example of a __________
A.
B.
C.
D.
45.  ____________ is a major dissolved volatile constituent in both magmas and volcanic gases?
A.
B.
C.
D.
46.  The 1991 Pinatubo eruption in the Philippines caused brilliantly colored sunrises and sunsets to be seen for the next few years. What caused this phenomenon?
A.
B.
C.
D.
47.  In which setting would regional metamorphism be most likely?
A.
B.
C.
D.
48.  ___ is characterized by segregation of light-and dark-colored minerals into thin layers or bands.
A.
B.
C.
D.
49.  What platy, parallel, mineral grains are the most visual aspect of foliated metamorphic rocks?
A.
B.
C.
D.
50.  Igneous rocks are produced largely by ________.
A.
B.
C.
D.
E.
51.  Which are the four most important physical processes of mechanical weathering?
A.
B.
C.
D.
52.  In the Rocky Mountain region of the United States, north-facing slopes (downhill direction is toward the north) are typically more moist and heavily forested than south-facing slopes. Why?
A.
B.
C.
D.
53.  Which of the following sedimentary features can each be used to determine paleocurrent directions?
A.
B.
C.
D.
54.  What does Bowen’s Reaction Series describe?
A.
B.
C.
D.
E.
55.  In terrain with steep hill slopes, which crop and cultivation technique will minimize soil erosion?
A.
B.
C.
D.
56.  Glassy igneous rocks form when the magma ________.
A.
B.
C.
D.
57.  What term describes the zone of contact metamorphism surrounding an intrusive magma body?
A.
B.
C.
D.
58.  As the rate of cooling increases, the size of the crystals that form __________.
A.
B.
C.
D.
59.  An Unconformity is a buried -
A.
B.
C.
D.
60.  What fundamental concept states that in a horizontal sequence of conformable sedimentary strata, each higher bed is younger than the bed below it?
A.
B.
C.
D.
61.  _______ magma is the most abundant type erupted at oceanic spreading centers.
A.
B.
C.
D.
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