Rock has a response to stress similar to that of taffy. Crust that is close to the surface and cooler is more likely to be brittle and to break when stressed. Increase the pressure, however, and the rock will heat up, becoming ductile. Under heat and pressure, it will change its shape rather than break. Both brittle and ductile responses to stress are evident in
Anticlines are ________________________?
folds with the oldest rocks in the middle
folds whose LIMBS dip away from the axial plane
upfolded or arched rocks
all of the other answers
_____________ are bends in the rock strata and generally represent the ductile response of rock strata to compression within the earth’s crust.
Earthquakes are consistently ___A____ at ocean ridges. At ocean trenches earthquakes get increasingly ___B____ in the direction that the subducting plate is moving. The earthquakes near to surface can be ___C____, while those at depth tend to be ___D____ A. shallow and relatively small; B. deep ; C. very large; D. very small.
A. shallow and relatively small ; B. large; C. small; D. very large
A. deep and relatively large; B. large; C. small; D. very large
A. deep and relatively large; B. small; C. large; D. very dangeorus
How many of the world’s largest earthquakes occur around the Ring of Fire?
Earthquakes produce 3 types of waves. Which of the following describes a P-WAVE?
travels through the Earth’s interior & can move through solids. liquids and gases
travels through the Earth’s interior, but only thorugh solids
travels only along the Earth’s surface, complex motion, very destructive
can only travel along the Earth’s surface
Which of the following is NOT a major earthquake zone?
the Mediterranean Sea east through the Himalayas
the mid-ocean ridge system
the circum-Pacific “ring of fire”
The FOCUS of an earthquake is ________________?
where the initial displacement along a fault occurs
the area on the surface where the shaking is greatest
the area where all the human deaths occur
10 feet below the surface of the ground
The following seismic waves are used to locate earthquake epicenters:
s surface waves and P waves.
Rayleigh waves and P waves.
P waves and S waves.
surface waves and S waves.
Which of the following seismic waves is the last to arrive at a seismic station?
In the rock deformation process, how is shear force described?
A pulling apart deforming an object.
Compression like using a trash compactor.
Strain as evidenced in all land forms
A tearing force like tearing paper.