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Home  arrow Chapter 7  arrow Quizzes  arrow Quiz 2: Detrital Sedimentary Rocks

Quiz 2: Detrital Sedimentary Rocks

Choose the best possible answer to the following questions about Key Concept 2 "Detrital sedimentary rocks."

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breccia


This activity contains 10 questions.

Question 1.
What minerals are most common in detrital sedimentary rocks and why? Choose all that apply.


Open Hint for Question 1 in a new window.
 
End of Question 1


Question 2.
Match the following detrital sediment types with the primary mode of lithification into sedimentary rock:



A matching question presents 2 answer choices and 2 items. The answer choices are lettered A through B. The items are numbered 2.1 through 2.2. Screen readers will read the answer choices first. Then each item will be presented along with a select menu for choosing an answer choice. Using the pull-down menus, match each item in the left column to the corresponding item in the right column.
A compaction and water expulsion
B cementation and compaction
 
 
End of Question 2


Question 3.
What is the primary basis for distinguishing among various detrital sedimentary rocks? Why?

 
End of Question 3


Question 4.
Detrital grains of some mineral(s) are extremely rare in detrital sediments. Which minerals and why?

 
End of Question 4


Question 5.
Match the detrital rock with the appropriate description:



A matching question presents 5 answer choices and 5 items. The answer choices are lettered A through E. The items are numbered 5.1 through 5.5. Screen readers will read the answer choices first. Then each item will be presented along with a select menu for choosing an answer choice. Using the pull-down menus, match each item in the left column to the corresponding item in the right column.
A well-sorted, medium-size (up to 2 mm) particles, large pore spaces, accounts for about 20% of sedimentary rocks
B silt- and clay-size particles, small pore spaces, accounts for > 50% of sedimentary rocks
C quartz, feldspar and rock fragments dominate, poorly sorted, angular grains
D angular large particles that are poorly sorted, few pore spaces
E gravel- and sometimes boulder-sized particles that are poorly sorted and rounded, few pore spaces
[hint] 
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[hint] 
End of Question 5


Question 6.
If shale is such a common rock in the sedimentary rock world, why isn't it as prominently exposed at the surface as sandstone?


Open Hint for Question 6 in a new window.
 
End of Question 6


Question 7.
Select the answer that lists the common detrital sedimentary rocks in order of increasing particle size.

 
End of Question 7


Question 8.
Label the layer with the appropriate rock type based on how the layer has weathered and mass-wasted:



The letters A through B appear on an image associated with this question.

This question presents 2 items numbered 8.1 through 8.2. Each item is presented with a pulldown menu containing the letters A through B. For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
[hint]
[hint]
End of Question 8


Question 9.
Using the figure below of eolian dunes, found at Great Sand Dunes National Monument in Colorado, indicate the direction the wind is blowing using the shape/symmetry of the dunes.
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Open Hint for Question 9 in a new window.
 
End of Question 9


Question 10.
Which of the following is a feasible explanation as to why quartz sandstone is an excellent use of “uniformitarianism” (presented in Chapter 1)?

 
End of Question 10





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