Geology test 2

Question 1

Another term for parent rock is __________

Answer 1

Protolith

Question 2

Which of these is regarded as a low-grade metamorphic rock?
Migmatite
Schist
Slate
Gneiss

Answer 2

Slate

Question 3

Metamorphic rocks are classified primarily on the presence or absence of _____________

Answer 3

Foliation

Question 4

Which is not a foliated metamorphic rock
Gneiss
Schist
Quartzite
Slate

Answer 4

Quartzite

Question 5

Limestone recrystallizes during metamorphism into ________

Answer 5

Marble

Question 6

Quartz sandstone is changed during metamorphism into ________

Answer 6

Quartzite

Question 7

A foliated metamorphic rock with very small crystals of mica creating a crinkled (wavy), silky appearance is called a _______

Answer 7

Phyllite

Question 8

A foliated metamorphic rock with clearly visible crystals of mica, creating a fish scale appearance is called a _________

Answer 8

Schist

Question 9

A schist that developed in a high-pressure, low temp environment likely formed in which type of metamorphic environment

Answer 9

A subduction or regional zone (most likely form a blueschist)

Question 10

What is the name for metamorphism coupled with the introduction of ions from an external source?

Answer 10

Metasomatism

Question 11

What is the slowest type of mass wasting process called?

Answer 11

Creep

Question 12

The largest known landslides have taken place where?

Answer 12

Sea floor

Question 13

A descending mass moving down a slope as a viscous fluid is referred to as a _________

Answer 13

Flow

Question 14

The driving force behind all mass wasting processes is _________

Answer 14

Gravity

Question 15

The resistance to movement or deformation of soil is it’s _________

Answer 15

Shear strength

Question 16

Flow of water saturated soil over impermeable material is called __________

Answer 16

Solufluction

Question 17

A flowing mixture of soil and water, usually moving down a channel is called a what?

Answer 17

Mudflow

Question 18

An apron of fallen rock fragments that accumulates at the base of a cliff is called __________

Answer 18

Talus

Question 19

How does construction destabilize a slope
A. Adds weight to the top of the slope
B. Decreases water content of the slope
C. Adds weight to the bottom of the slope
D. Increases the shear strength of the slope

Answer 19

A

Question 20

The total area drained by a stream and it’s tributaries is called the ____________

Answer 20

Drainage Basin

Question 21

Stream erosion and deposition are controlled by primarily by a river’s _______

Answer 21

Hydraulic Action

Question 22

Hydraulic action, solution and abrasion are all examples of stream __________

Answer 22

Erosion

Question 23

Cobbles (64-256 diameter) are more likely to be transported in a stream's
A. Bed load
B.Suspended load
C. Dissolved load
D. All of the proceeding

Answer 23

A

Question 24

A rivers velocity is __________on the outside of a meander curve compared to the inside

Higher/lower/equal

Answer 24

Higher

Question 25

Sandbars deposited on the inside of meander curves are called _________

Answer 25

Point bars

Question 26

Which drainage pattern resembles the branches of a tree?

Answer 26

Dendritic

Question 27

Which drainage pattern has streams that diverge outward, like the spokes of a wheel and can be found on conical mountains?

Answer 27

Radial

Question 28

Which drainage pattern has has tributaries that have frequent 90 degree bends and joins other streams at right angles?

Answer 28

Rectangle

Question 29

Which drainage pattern has parallel streams with short tributaries meeting at right angles?

Answer 29

Trellis

Question 30

The broad strip of land built up by sediment on either side of a stream channel is a _________

Answer 30

Natural Levee

Question 31

The average time between floods of a given size is called the __________

Answer 31

Recurrence interval

Question 32

A platform of sediment formed where a stream flows into standing water is called __________

Answer 32

Delta

Question 33

The subsurface zone in which all rock openings are filled with water is called the __________

Answer 33

Saturated zone

Question 34

Porosity is defined as ____________

Answer 34

the percentage of a rock's volume that consists of voids or openings

Question 35

Permeability is defined as the ___________

Answer 35

The capacity of a rock to transmit a fluid

Question 36

What is a body of saturated rock or sediment through which water can move easily?

Answer 36

Aquifer

Question 37

``` Which type of rock would make the best aquifer? A.Shale B. Mudstone C. Sandstone D. All of the choices are correct ```

Answer 37

C

Question 38

``` Which of the following determines how quickly groundwater flows? A. Elevation B.Pressure head C. Permeability of the aquifer D. All the choices are correct ```

Answer 38

D

Question 39

The drop in the water table around a pumped well is the ________

Answer 39

Drawdown

Question 40

Groundwater flows from ___________

Answer 40

Higher total hydraulic head to lower total hydraulic head

Question 41

Which principle states "Geological processes operating at present are the same processes that have operated in the past"?

Answer 41

Uniformitarianism

Question 42

Which principle states "With a sequence of undisturbed sedimentary rocks, the layers get younger going from bottom to top"?

Answer 42

Superposition

Question 43

``` If rock "A" cuts across rock "B", the rock "A" is Younger Older The same age as rock "B" ```

Answer 43

Younger

Question 44

A contact between parallel sedimentary rock that records missing geological time is called a what?

Answer 44

Disconformity

Question 45

Sedimentary deposition on an erosional surface formed on older tilted sedimentary strata results in what?

Answer 45

Angular Unconformity

Question 46

Sedimentary deposition on an erosional surface formed on undeformed older sedimentary strata, in which the younger layers are approximately parallel to the older layers below the erosional surface results in?

Answer 46

Disconformity

Question 47

Sedimentary deposition on an erosional surface formed on older igneous or metamorphic rock is called _____

Answer 47

Nonconformity

Question 48

``` Which is the method of correlation? A. Physical continuity B. Similarity of rock types C. Fossils D) All the above is correct ```

Answer 48

D

Question 49

``` Eras are divided into A. Periods B. Eons C. Ages D. Epochs ```

Answer 49

A

Question 50

``` Periods are subdivided into A. Eras B. Epochs C. Ages D. Time zones ```

Answer 50

B

Question 51

``` Which division of geologic time was the longest? A. Precambrian B. Paleozoic C. Mesozoic D. Cenozoic ```

Answer 51

A