What causes the rock layers to take on the shape shown in diagram C?
Tension
.
Why do rock layers along plates stick before they slip?
The tectonic plates are always slowly moving, but they get stuck at their edges due to
friction
. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth’s crust and cause the shaking that we feel.
Will a normal fault result from the stresses being applied to the rock unit in diagram D explain Brainly?
Will a normal fault result from the stresses being applied to the rock unit in Diagram D? Explain.
No
, because the stresses being applied will not push the rock unit up or down but sideways. A strike-slip fault rather than a normal fault will result.
What are the 3 fault types?
There are three main types of fault which can cause earthquakes:
normal, reverse (thrust) and strike-slip
. Figure 1 shows the types of faults that can cause earthquakes. Figures 2 and 3 show the location of large earthquakes over the past few decades.
Are the layers still horizontal?
However,
many layered rocks are no longer horizontal
. Because of the Law of Original Horizontality, we know that sedimentary rocks that are not horizontal either were formed in special ways or, more often, were moved from their horizontal position by later events, such as tilting during episodes of mountain building.
What happens to the rock in a fault slip?
Strike-slip fault, also called transcurrent fault, wrench fault, or lateral fault, in geology, a fracture in the rocks of Earth’s crust in which
the rock masses slip past one another parallel to the strike
, the intersection of a rock surface with the surface or another horizontal plane.
What is the most famous strike-slip fault?
The San Andreas Fault
—made infamous by the 1906 San Francisco earthquake—is a strike-slip fault. This means two fault blocks are moving past each other horizontally. Strike-slip faults tend to occur along the boundaries of plates that are sliding past each other.
Can a strike-slip fault cause a tsunami?
Strike-slip faults are
not usually included in tsunami
hazard assessments as they generally cause large horizontal (with limited vertical) displacements, and so are considered insufficient to generate large tsunamis unless they trigger a submarine landslide.
What are the 4 major types of faults?
There are four types of faulting
— normal, reverse, strike-slip, and oblique
. A normal fault is one in which the rocks above the fault plane, or hanging wall, move down relative to the rocks below the fault plane, or footwall. A reverse fault is one in which the hanging wall moves up relative to the footwall.
What is tensional stress?
Tensional stress is
the stress that tends to pull something apart
. It is the stress component perpendicular to a given surface, such as a fault plane, that results from forces applied perpendicular to the surface or from remote forces transmitted through the surrounding rock.
What is type of fault?
There are three different types of faults:
Normal, Reverse, and Transcurrent (Strike-Slip)
. Normal faults form when the hanging wall drops down. … Reverse faults form when the hanging wall moves up. The forces creating reverse faults are compressional, pushing the sides together.
Is a simple bend in the rock layers so that they are no longer horizontal?
A monocline
is a simple bend in the rock layers so that they are no longer horizontal. Anticlines are folded rocks that arch upward and dip away from the center of the fold. The oldest rocks are at the center of an anticline and the youngest are draped over them.
How can you tell which rock layer is the oldest?
The bottom layer of rock forms
first, which means it is oldest. Each layer above that is younger, and the top layer is youngest of all.
Why do you think some rock layers are missing from the sequence in some outcrops?
193 Page 4 DISCUSSION QUESTIONS: (Answer in Conpleie Sentences) 1. Explain why some rock layers can be missing from the sequence in some outcrops.
They were weathered and eroded or never deposited
. reconstruct a sequence of events?
What causes faults to move?
Tensional stress
is when rock slabs are pulled apart from each other, causing normal faults. With normal faults, the hanging wall slips downward relative to the footwall. … These rocks move like your hands do when you rub them together to warm up. The movement along faults is what causes earthquakes.
How often do faults slip?
Earth’s crust typically moves
a few millimeters to centimeters per year
. In an actively deforming continental region, the crust often behaves like a set of nearly-rigid blocks separated by faults.
