Geology 1114 Exam 2

Front 1

What rock type can weather into sediment?

Back 1

All of the above

Front 2

Unloading is a type of mechanical weathering

Back 2

True

Front 3

What is the most important agent of chemical weathering?

Back 3

Water

Front 4

What type of climate would you expect to produce more mechanical weathering than chemical?

Back 4

A mountain range that does not experience much precipitation

Front 5

The most likely place to develop good soil is:

Back 5

On gently varying topography

Front 6

In what environment would you expect to see the thinnest O-zone?

Back 6

In a desert

Front 7

Soil is considered to be an interface between Earth's spheres because:

Back 7

It contains rock, water, organic matter and air

Front 8

What does the difference in particle angularity between conglomerates and breccias tell us about their formation environments?

Back 8

Conglomerates form farther away from the particle source

Front 9

The rock on top Mt. Everest is a shallow marine limestone deposited 200 million years ago. What does this tell us about the geologic history of the Himalayas?

Back 9

200 millions years ago, limestone formed in an ocean basin, then was uplifted at a later date.

Front 10

Water containing dissolved sugar evaporates to leave a deposit of sugar in the bottom of a glass. This could be seen as an analog for the formation of a type of:

Back 10

Chemical sedimentary rock

Front 11

Which of these cores is from a higher energy environment?

Back 11

B

Front 12

Which sedimentary feature is shown in this picture?

Back 12

Cross bedding

Front 13

Which of the following rocks would you expect to have been formed from sediments deposited in a quiet, undisturbed water column?

Back 13

Shale

Front 14

Relative to their axial plane, where are the youngest rocks located?

Back 14

Closer to the plane for a syncline, farther for an anticline

Front 15

What type of fault is this?

Back 15

Normal

Front 16

What type of fold is this, and where are the oldest rocks exposed?

Back 16

Dome, at the center

Front 17

Which is an environment where metamorphism can occur?

Back 17

All of the above

Front 18

Which of these changes might occur as a result of metamorphism?

Back 18

All of the above

Front 19

If units A and D are igneous rocks, and the others originally sedimentary, which of the other units did not experience contact metamorphism?

Back 19

All have experienced contact metamorphism

Front 20

Name that rock!

Back 20

Geneiss

Front 21

If you know the metamorphic facies of a metamorphic rock (example: zeolite), what can you deduce about the rock?

Back 21

Pressure and temperature of formation

Front 22

Given the temperature vs. depth diagram, which letter is the best choice to represent the conditions necessary to convert a sedimentary rock to a metamorphic rock as a result of contact metamorphism?

Back 22

B

Front 23

Which of the three seismograph sites is farthest from the epicenter?

Back 23

C- Paris, France

Front 24

Which of the maps below is the best representation of the distribution of earthquakes of magnitude 7 or larger?

Back 24

D

Front 25

Based on the map of plate boundaries, which land mass would be the least likely to experience frequent earthquakes?

Back 25

Australia

Front 26

What is Mercalli Intensity?

By the time the shaking stopped, a pantry worth of food had been strewn across the kitchen and shards of glassy and pottery covered the floor. Aside from a buckled highway and the collapse of a tower on the St. Gregory's University administration building, no major damage was reported. At least one person was taken to a hospital in Prague with minor injuries, he said.

Back 26

7

Front 27

P waves are _______ waves and ________ move through liquid.

Back 27

Compressional, will

Front 28

Changes in seismic wave velocity and direction between layers may mean all of the following except:

Back 28

Layers are exactly the same in all physical properties

Front 29

How do we know the inner core is liquid?

Back 29

P waves are transmitted but S waves are not

Front 30

Why is the youngest crust is located along mid-ocean ridges?

Back 30

These are divergent boundaries

Front 31

Why is the passive margin crust on the eastern US and western Africa the same age?

Back 31

They were originally one continent and then pushed apart by the divergent boudary

Front 32

Which pair of sites is best described as being located on or near a continental shelf?

Back 32

A and B

Front 33

Which letter best represents the forearc basin?

Back 33

C

Front 34

As weight is removed, the crust ___________

Back 34

Rebounds upwards