review question GEOL

Anonymous
timer Asked: Apr 11th, 2017

Question description

Why are thrust faults, folds, and reverse faults commonly found together?

They are not found together

They all form from shear stress

They all form from extensional stress

They all form from compressional stress



Horsts and grabens are formed by compressional stress.

Right

Wrong


Seismic waves that can only travel through solids are _.

L-waves

S-waves

O-waves

P-waves


A tilted axis is indicative of:

a recumbent fold

an asymmetrical fold

a plunging fold

an overturned fold


Identify the fault in the image (cross-sectional view).

Left lateral strike slip

Right lateral strike slip

Thrust

Reverse

Normal


What type of stress created this fault?


Shear

Extensional


Compressional

Brittle

Which of the following is NOT true about aftershocks:



can cause major damage to buildings and structures weakened by major earthquake


What is the difference between the focus and the epicenter?

all of these statements are correct

body waves radiate from the focus and surface waves radiate from the epicenter


the focus is where the earthquake originates and is below the Earth’s surface

the epicenter is directly above the focus on the Earth’s surface

The New Madrid Earthquakes of 1811-1812 are the strongest ever-recorded quakes in the coterminous U.S.

Identify the fault in the image. (Map View)


Thrust

Reverse


Left lateral strike slip

Normal

Right lateral strike slip


This image is an example of a fault scarp. What type of fault produces this feature?

Transform faults

Dip slip faults

Both dip-slip and strike-slip

Strike slip faults

The famous San Andreas Fault is strike-slip fault in California.

This is a _____ fault caused by _____ stress.


Reverse, Extensional

Normal, Extensional

Reverse, Compressional

Right Lateral Strike Slip, Shear

Normal, Compressional

The Red Sea formed in a graben within the Great East African Rift system.

Horsts and grabens are a series of reverse faults with the fault lines dipping in opposite directions.



Identify the fault in the image.


Left lateral strike slip

Reverse


Thrust

Right lateral strike slip

Normal


Earthquakes are more frequent during El Nino and after heavy rainstorms because the ground is saturated with water.

Which of the following is NOT true about this block diagram:

the dip angle is 40 degrees

the fold is symmetrical

rock layer M is older than layer O

this fold is a syncline


P-waves are always the first seismic waves to arrive at a given location because they travel the fastest.


This image is an aerial (map) view of Nevada that illustrates a geologic feature common to several western states. It is often referred to as the "March of the Caterpillars" when seen from above... by geologists, anyway! :)

Based on your new geologic knowledge of this area, what gives this region that distinctive look?

series of thrust faults

series of anticlines and synclines

series of horsts and grabens

series of joints

The strongest earthquake recorded in the United States was in __.

California

Missouri

New York

Alaska

South Carolina


Removal of sediment from a mountain on the continental crust will cause the mountain to___.

Sink further into the mantle in order to reach a new equilibrium

Merge with the ocreanic crust because of isostatic rebound

Rise up in order to reach a new equilibrium

Float on the oceanic crust because of buoyancy

Which of the following is NOT true about this image of R2D2 taken in Death Valley? ---or Tatooine if you prefer :)

R2D2 is standing on a basin

R2D2 is standing on a footwall

R2D2 is standing on a graben

R2D2 is standing on a hanging wall

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