Question 1

The basis for classifying detrital sediments and their rocks is ____________________.

Accepted Answer

particle size

Question 2

How are oil and gas trapped in rock strata? What are these traps called?

Accepted Answer

Rock strata that can trap oil and gas are known as stratigraphic traps. A reservoir rock has an overlying cap rock, and it is the difference between the rock types that traps the hydrocarbons. Structural traps result when rocks are deformed by folding, fracturing, or both. The hydrocarbons migrate to the tops of these structures as they are less dense. These require only a good reservoir rock to hold the oil and gas.

Question 3

___________________ is fundamental to the origin of sediments and sedimentary rocks

Accepted Answer

Weathering

Question 4

____________________ form when layers are deposited at an angle to the surface and the layers dip in direction of ____________________.

Accepted Answer

The answer of ____________________ form when layers are deposited at...

Question 5

The uranium used in nuclear reactors comes largely from the complex potassium-, uranium-, vanadium-bearing mineral called carnotite found in some sedimentary rocks.

Accepted Answer

A) True 
 B)False

Question 6

Graded bedding forms when:

Accepted Answer

A)  erosion planes off a portion of the sea bottom. 
B)  sediment is deposited on a steep slope or grade. 
C)  turbidity currents initially deposit coarse sediment then fine sediment. 
D)  cross-bedding is truncated. 
E)  turbidity currents deposit first fine sediment followed by coarse sediment. 
A)  erosion planes off a portion of the sea bottom. 
B)  sediment is deposited on a steep slope or grade. 
C)  turbidity currents initially deposit coarse sediment then fine sediment. 
D)  cross-bedding is truncated. 
E)  turbidity currents deposit first fine sediment followed by coarse sediment.

Question 7

What are the requirements for a rock body to serve as a reservoir rock for hydrocarbons?

Accepted Answer

The rock must be capable of tr

Question 8

Caliche is a layer of precipitated calcium carbonate in horizon B.

Accepted Answer

A) True 
 B)False

Question 9

How do soils that form in humid regions differ from soils that form in semi-arid regions in the environments in which they form and in their basic characteristics?

Accepted Answer

Soils that form in semi-arid regions con

Question 10

Why do small particles weather more rapidly than large particles?

Accepted Answer

Chemical weathering occurs on

Question 11

Rock units with sheetlike geometry were most likely deposited during marine ____________________ or ____________________.

Accepted Answer

transgression, regre

Question 12

A rock may be subjected to either mechanical or chemical weathering, but never both at the same time.

Accepted Answer

A) True 
 B)False

Question 13

How does mechanical weathering differ from chemical weathering?

Accepted Answer

In mechanical weathering, physical force

Question 14

Briefly explain why the study of sedimentary environments is important in the study of historical geology.

Accepted Answer

Historical geology is concerned with und

Question 15

Hydrocarbons can be widespread in sedimentary rock, but reservoirs are formed by:

Accepted Answer

A)  porous and permeable beds bounded on all sides by impermeable rock. 
B)  large cavities, such as cave systems in limestone reefs. 
C)  structural traps. 
D)  porous and permeable beds bounded on all sides by impermeable rock AND structural traps. 
E)  all of these 
A)  porous and permeable beds bounded on all sides by impermeable rock. 
B)  large cavities, such as cave systems in limestone reefs. 
C)  structural traps. 
D)  porous and permeable beds bounded on all sides by impermeable rock AND structural traps. 
E)  all of these

Question 16

What two sedimentary structures can be useful in determining ancient current directions?

Accepted Answer

Current ri

Question 17

What are the major factors that control the rate of chemical weathering?

Accepted Answer

Presence of fracture

Question 18

The most important factor controlling soil formation is ____________________.

Accepted Answer

The answer of The most important factor controlling soil formation...

Question 19

The properties used to describe detrital sediment are:

Accepted Answer

A)  size. 
B)  sorting. 
C)  rounding. 
D)  size and rounding. 
E)  size, sorting, and rounding. 
A)  size. 
B)  sorting. 
C)  rounding. 
D)  size and rounding. 
E)  size, sorting, and rounding.

Question 20

Banded iron formations consist of alternating thin layers of chert- and iron-bearing minerals.

Accepted Answer

A) True 
 B)False

The basis for classifying detrital sediments and their rocks is ____________________.

How are oil and gas trapped in rock strata? What are these traps called?

___________________ is fundamental to the origin of sediments and sedimentary rocks

form when layers are deposited at an angle to the surface and the layers dip in direction of .

The uranium used in nuclear reactors comes largely from the complex potassium-, uranium-, vanadium-bearing mineral called carnotite found in some sedimentary rocks.

Graded bedding forms when:

What are the requirements for a rock body to serve as a reservoir rock for hydrocarbons?

Caliche is a layer of precipitated calcium carbonate in horizon B.

How do soils that form in humid regions differ from soils that form in semi-arid regions in the environments in which they form and in their basic characteristics?

Why do small particles weather more rapidly than large particles?

Rock units with sheetlike geometry were most likely deposited during marine or .

A rock may be subjected to either mechanical or chemical weathering, but never both at the same time.

How does mechanical weathering differ from chemical weathering?

Briefly explain why the study of sedimentary environments is important in the study of historical geology.

Hydrocarbons can be widespread in sedimentary rock, but reservoirs are formed by:

What two sedimentary structures can be useful in determining ancient current directions?

What are the major factors that control the rate of chemical weathering?

The most important factor controlling soil formation is ____________________.

The properties used to describe detrital sediment are:

Banded iron formations consist of alternating thin layers of chert- and iron-bearing minerals.

Understanding Earth: a Dynamic and Evolving Planet

Plate Tectonics: a Unifying Theory

Minerals: the Building Blocks of Rocks

Igneous Rocks and Intrusive Igneous Activity

Volcanoes and Volcanism

Metamorphism and Metamorphic Rocks

Earthquakes and Earths Interior

Deformation, Mountain Building, and the Continents

Mass Wasting

Running Water

Groundwater

Glaciers and Glaciation

The Work of Wind and Deserts

Shorelines and Shoreline Processes

Geologic Time: Concepts and Principles

Earth History

Life History

Filters

Exam 6: Weathering, Soil, and Sedimentary Rocks

The basis for classifying detrital sediments and their rocks is ____________________.

How are oil and gas trapped in rock strata? What are these traps called?

___________________ is fundamental to the origin of sediments and sedimentary rocks

____________________ form when layers are deposited at an angle to the surface and the layers dip in direction of ____________________.

The uranium used in nuclear reactors comes largely from the complex potassium-, uranium-, vanadium-bearing mineral called carnotite found in some sedimentary rocks.

Graded bedding forms when:

What are the requirements for a rock body to serve as a reservoir rock for hydrocarbons?

Caliche is a layer of precipitated calcium carbonate in horizon B.

How do soils that form in humid regions differ from soils that form in semi-arid regions in the environments in which they form and in their basic characteristics?

Why do small particles weather more rapidly than large particles?

Rock units with sheetlike geometry were most likely deposited during marine ____________________ or ____________________.

A rock may be subjected to either mechanical or chemical weathering, but never both at the same time.

How does mechanical weathering differ from chemical weathering?

Briefly explain why the study of sedimentary environments is important in the study of historical geology.

Hydrocarbons can be widespread in sedimentary rock, but reservoirs are formed by:

What two sedimentary structures can be useful in determining ancient current directions?

What are the major factors that control the rate of chemical weathering?

The most important factor controlling soil formation is ____________________.

The properties used to describe detrital sediment are:

Banded iron formations consist of alternating thin layers of chert- and iron-bearing minerals.

Understanding Earth: a Dynamic and Evolving Planet

Plate Tectonics: a Unifying Theory

Minerals: the Building Blocks of Rocks

Igneous Rocks and Intrusive Igneous Activity

Volcanoes and Volcanism

Metamorphism and Metamorphic Rocks

Earthquakes and Earths Interior

Deformation, Mountain Building, and the Continents

Mass Wasting

Running Water

Groundwater

Glaciers and Glaciation

The Work of Wind and Deserts

Shorelines and Shoreline Processes

Geologic Time: Concepts and Principles

Earth History

Life History

Filters

form when layers are deposited at an angle to the surface and the layers dip in direction of .

Rock units with sheetlike geometry were most likely deposited during marine or .