All detrital sedimentary rocks have a _______________ texture.
QUESTION 1
- All detrital sedimentary rocks have a _______________ texture.
1 points
QUESTION 2
- All but one chemical sedimentary rocks have a ____________________ texture.
1 points
QUESTION 3
- Which of the following sedimentary rocks has a clastic texture?
a. |
chalk |
|
b. |
flint |
|
c. |
breccia |
|
d. |
dolostone |
1 points
QUESTION 4
- Which of the following sedimentary rocks has a detrital origin?
a. |
siltstone |
|
b. |
shale |
|
c. |
flint |
|
d. |
limestone |
|
e. |
both a and b |
1 points
QUESTION 5
- Which of the following sedimentary rocks forms where a restricted basin of warm shallow seawater evaporates?
a. |
flint |
|
b. |
shale |
|
c. |
coquina |
|
d. |
rock gypsum |
1 points
QUESTION 6
- Which of the following sedimentary rocks will fizz under dilute HCl?
a. |
chalk |
|
b. |
coquina |
|
c. |
limestone |
|
d. |
rock salt |
|
e. |
a, b, and c |
1 points
QUESTION 7
- Which of the following sedimentary rocks would scratch glass?
a. |
shale |
|
b. |
flint |
|
c. |
limestone |
|
d. |
dolostone |
1 points
QUESTION 8
- Which of the following environments of deposition would provide a rock with the best sorting?
beach |
||
desert dunes |
||
stream channel |
||
alluvial fan |
1 points
QUESTION 9
- What is the chemical composition of flint or chert? ________________
1 points
QUESTION 10
- What is the basic chemical composition of limestone? ____________
1 points
QUESTION 11
- The grains in a sandstone may be angular or they may be rounded. In general, the degree of roundness of the grains in a detrital sedimentary rock is an indication of what?
1 points
QUESTION 12
- Which of the following is likely to contain more feldspar than the other?
Choice 1: a sandstone with its grains derived from a weathered granite cliff 600 miles away
Choice 2: a sandstone with its grains derived from a weathered sandstone cliff 600 miles away.
indiate your answer here: ___________________
1 points
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Solution: All detrital sedimentary rocks have a _______________ texture.