Which type of deformation is reversible? Select one: a. elastic deformation b. d
ID: 291630 • Letter: W
Question
Which type of deformation is reversible?
Select one:
a. elastic deformation
b. ductile deformation
c. fracture deformation
d. brittle deformation
e. plastic deformation
A dip angle
Select one:
a. Is represented on a geologic map as a short line perpendicular to the strike
b. Is measured as the angle below the horizontal
c. Is a measure of the angle of a bedding plan (geologic contact)
d. Is a measure of the angle of a fold limb or fault plane.
e. All of the above
Geological maps illustrate:
Select one:
a. the lithology of rock units exposed or shallowly buried
b. the age of rock units exposed or shallowly buried
c. the strike and dip
d. location of faults
e. All of the above
Reverse faults are caused by:
Select one:
a. weathering
b. an abundance of rainfall
c. shear stress
d. tensional stress
e. compressive stress
Which type of mountains usually forms above subduction zones, at divergent boundaries, or at hotspots?
Select one:
a. fault-block mountains
b. volcanic mountains
c. fold-and-thrust mountains
d. coastal mountains
e. none of these
Anticline folds and syncline folds are two examples of:
Select one:
a. simple folds
b. domes
c. overturned folds
d. basins
e. none of these
What is the term for the region where a folds limbs intersect?
Select one:
a. at the center of the fold
b. at the hinge
c. at the fold intersection
d. limbs do not intersect
What is the name of the now extinct plate that was subducted beneath the North American Plate about 30 million years ago along the central California coastline?
Select one:
a. the Timor Plate
b. the Banda Sea Plate
c. the Farallon Plate
d. the Sunda Plate
e. the Okhotsk Plate
The Appalacians are an example of what type of mountain building?
Select one:
a. fault-block mountains
b. volcanic mountains
c. slip-and-thrust mountains
d. fold-and-thrust mountains
e. none of these
What is the classification of the San Andreas Fault?
Select one:
a. Right lateral strike-slip fault (LA is moving northward)
b. Left laterial strike-slip fault (LA is moving southward)
c. Thrust fault
d. Normal fault
e. Reverse fault
At a surface outcrop, the OLDEST rock would be found
Select one:
a. In the center (along the hinge) of an anticline.
b. In the center (along the hinge) of a syncline.
c. At the center of a basin
d. At the nose of a plunging fold
e. Along the plane of fracture
Which type of environment produces a joint?
Select one:
a. Cooling of igneous rock in which shrinkage occurs.
b. Breakage of the crust due to compression resulting in an earthquake.
c. Ductile compression deep in a mountain forming region
d. Hydrothermal depostion of minerals by chemically active fluids.
e. Along the edge of a compression fold
What kind of stress leads to the thinning of Earths crust?
Select one:
a. deformational stress
b. compressional stress
c. confining stress
d. shear stress
e. tensional stress
What does an outcrop pattern of Vs indicate?
Select one:
a. S-folds
b. the hinge
c. red shale
d. plunging folds
e. limestone
What type of fault plane motion occurs at strike-slip fault locations?
Select one:
a. perpendicular motion
b. tensional motion
c. horizontal motion
d. vertical motion
e. no motion
Explanation / Answer
Which type of deformation is reversible?
ans- Elastic deformation
explanation- when a sufficient load is applied to a material it will cause the material to change shape, this is called deformation, Upto a certian limit, if the the force applied is removed, the material returns to its original shape, this is called elastic deformation.
When the force is enough to cause a permanent shape change from where the material could not return is called plastic deformation.
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