Question 1

Lithification of sand and gravel requires both compaction and ____.

Accepted Answer

A) aggregation 
B) filtration 
C) condensation 
D) cementation 
E) stratification

Question 2

Sediment becomes sedimentary rock by the process known as ____________________.

Accepted Answer

The answer of Sediment becomes sedimentary rock by the process...

Question 3

In the accompanying figure, indicate the three (3)major depositional environments for the formation of sedimentary rock. Discuss how physical and biological processes impart distinctive characteristics to the accumulating sediment in the different environments. Illustrate with one or more examples.

Accepted Answer

The answer of  In the accompanying figure, indicate the...

Question 4

By far the most common chemical sediments are ____________________ mud and grains.

Accepted Answer

The answer of By far the most common chemical sediments...

Question 5

Large fossils are more useful for environmental interpretations than are microfossils.

Accepted Answer

A) True 
 B)False

Question 6

Describe strata.

Accepted Answer

The answer of Describe strata....

Question 7

The designation of sediment grain size, from largest to smallest, is gravel, sand, ____________________, and ____________________.

Accepted Answer

The answer of The designation of sediment grain size, from...

Question 8

Sediments are classified as ____ and ____.

Accepted Answer

A) physical; chemical 
B) conglomerate; breccia 
C) detrital; chemical 
D) conglomerate; detrital 
E) clastic; particulate

Question 9

Carnotite ____.

Accepted Answer

A) undergoing pressure becomes bituminous coal 
B) is the source of most of the uranium used in nuclear reactors in North America 
C) is never found in granitic rocks 
D) rarely occurs in the presence of plant remains 
E) is another name for shale

Question 10

Microscopic crystals of silica form a hard rock called chert, which can be shaped to form sharp cutting edges.

Accepted Answer

A) True 
 B)False

Question 11

Along shorelines, marine ____________________and ____________________ accomplish much of the work of sediment transport and deposition.

Accepted Answer

The answer of Along shorelines, marine ____________________and ____________________ accomplish much...

Question 12

____________________ ripple marks form in response to wind or water moving in one direction.

Accepted Answer

The answer of ____________________ ripple marks form in response to...

Question 13

The Navajo Sandstone is a wind-blown sand deposit with large cross-beds. How would the sand of these ancient sedimentary rocks be characterized?

Accepted Answer

A) poorly sorted 
B) well-sorted 
C) compacted 
D) poorly graded 
E) cemented

Question 14

How do detrital sedimentary rocks differ from chemical sedimentary rocks?

Accepted Answer

The answer of How do detrital sedimentary rocks differ from...

Question 15

A major characteristic of graded bedding is that the rock layers ____.

Accepted Answer

A) are thick and easily distinguished from each other 
B) formed because turbidity currents are less dense than sediment-free water 
C) contain intersecting fractures called mud cracks 
D) show an upward decrease in grain size 
E) are always formed in deserts

Question 16

Most limestone is of biochemical origin.

Accepted Answer

A) True 
 B)False

Question 17

Two processes that can create a rock from sediment are ____________________, in which grains are squeezed and water is lost, and ____________________, in which material is precipitated in pore spaces and binds grains together.

Accepted Answer

The answer of Two processes that can create a rock...

Question 18

Siltstone, mudstone, and claystone are all types of mudrock.

Accepted Answer

A) True 
 B)False

Exam 7: Sediment and Sedimentary Rocks

Lithification of sand and gravel requires both compaction and ____.

Sediment becomes sedimentary rock by the process known as ____________________.

In the accompanying figure, indicate the three (3)major depositional environments for the formation of sedimentary rock. Discuss how physical and biological processes impart distinctive characteristics to the accumulating sediment in the different environments. Illustrate with one or more examples.

By far the most common chemical sediments are ____________________ mud and grains.

Large fossils are more useful for environmental interpretations than are microfossils.

Describe strata.

The designation of sediment grain size, from largest to smallest, is gravel, sand, , and .

Sediments are classified as and .

Carnotite ____.

Microscopic crystals of silica form a hard rock called chert, which can be shaped to form sharp cutting edges.

Along shorelines, marine and accomplish much of the work of sediment transport and deposition.

____________________ ripple marks form in response to wind or water moving in one direction.

The Navajo Sandstone is a wind-blown sand deposit with large cross-beds. How would the sand of these ancient sedimentary rocks be characterized?

How do detrital sedimentary rocks differ from chemical sedimentary rocks?

A major characteristic of graded bedding is that the rock layers ____.

Most limestone is of biochemical origin.

Two processes that can create a rock from sediment are , in which grains are squeezed and water is lost, and , in which material is precipitated in pore spaces and binds grains together.

Siltstone, mudstone, and claystone are all types of mudrock.