What is the effect when large sudden rock movements occur along a fault?

What is the effect when large sudden rock movements occur along a fault?

Earthquakes are the result of sudden movement along faults within the Earth. The movement releases stored-up ‘elastic strain’ energy in the form of seismic waves, which propagate through the Earth and cause the ground surface to shake.

What is the effect of molten rock breaking through the earth’s surface?

Once the molten mantle rock forces its way through the crust, it eventually erupts through the volcano as lava. This lava cools and forms rocks that scientists study to try and tell them more about what is happening to cause volcanic eruptions and how the mantle is stored under a volcanic area.

Is the theory that the Earth’s outer shell is not one piece of rock?

According to the theory of plate tectonics, the earth’s outer shell is not one solid piece of rock. Instead the earth’s crust is broken into a number of moving plates. The plates vary in size and thickness.

How does opportunity cost vary quizlet?

The most desirable alternative given up as the result of a decision. How does opportunity cost vary? Based on what is being given up by making the decision.

Which movement of two blocks of rock along a fault causes an earthquake to occur?

Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ground shake. When two blocks of rock or two plates are rubbing against each other, they stick a little. They don’t just slide smoothly; the rocks catch on each other.

Why rocks in the earth’s crust do not move immediately when energy is applied along faults?

Fault Creep – Some faults or parts of faults move continuously without generating earthquakes. This could occur if there is little friction on the fault and tectonic stresses are large enough to move the blocks in opposite directions. This is called fault creep.

What rocks are formed by the cooling of the Earth’s surface from a molten state?

Igneous rocks form when magma (molten rock) cools and crystallizes, either at volcanoes on the surface of the Earth or while the melted rock is still inside the crust.

What do you think will happen if Earth’s outermost shell crust is no longer in motion?

Erosion would continue to wear the mountains down, but with no tectonic activity to refresh them, over a few million years they would erode down to low rolling hills. So the whole planet would be flatter, and the topography would be a heck of a lot less exciting. You’d probably be less inclined to go trekking in Nepal.

How does opportunity cost affect decision making?

We make decisions every day that involve opportunity costs. Often in life, our decisions are mutually exclusive, meaning it simply is not possible to have two things at once. When this is the case, there is an opportunity cost of the thing we did not chose. This is equally important when making investment decisions.

What does the economic concept of guns or butter mean?

Guns and butter generally refers to the dynamics involved in a federal government’s allocations to defense versus social programs when deciding on a budget. Both areas can be critically important to a nation’s economy. Times of war can have a substantial effect on a country’s economy and its societal progression.

What is a fault in geology?

In geology, a fault is a discontinuity that is formed by fracture in the surface rocks of the Earth (up to 200 km deep) when tectonic forces exceed the resistance of the rocks. In other words, a fault is a crack in the Earth’s crust.

What is the length of a typical fault?

Faults may range in length from a few millimeters to thousands of kilometers. Most faults produce repeated displacements over geologic time. During an earthquake, the rock on one side of the fault suddenly slips with respect to the other.

What are the effects of faults on a folded sequence?

The effects of faults on different types of folded sequence are broadly the same as in plainly dipping strata. But with the changes in the attitude of the faults or that of rocks, quite complicated results may be seen. In fig. 7.22 effects of a dip-fault on a folded sequence comprising simple anticlines (A) and synclines (S) has been shown.

What type of faulting occurs in response to extension?

This type of faulting occurs in response to extension and is often observed in the Western United States Basin and Range Province and along oceanic ridge systems. thrust fault – a dip-slip fault in which the upper block, above the fault plane, moves up and over the lower block.