Powerpoint Presentation Physical Geology, 10/e
... • Deep interior of the Earth must be studied indirectly – Direct access only to crustal rocks and small upper mantle fragments brought up by volcanic eruptions or slapped onto continents by subducting oceanic plates – Deepest drillhole reached about 12 km, but did not reach the mantle ...
... • Deep interior of the Earth must be studied indirectly – Direct access only to crustal rocks and small upper mantle fragments brought up by volcanic eruptions or slapped onto continents by subducting oceanic plates – Deepest drillhole reached about 12 km, but did not reach the mantle ...
8.1 Earthquakes 8.2 Measuring Earthquakes
... • Most earthquakes are produced by the rapid release of elastic energy stored in rock that has been subjected to great forces. • When the strength of the rock is exceeded, it suddenly breaks, causing the vibrations of an earthquake. •Seismic wave- energy that radiates in all directions from the eart ...
... • Most earthquakes are produced by the rapid release of elastic energy stored in rock that has been subjected to great forces. • When the strength of the rock is exceeded, it suddenly breaks, causing the vibrations of an earthquake. •Seismic wave- energy that radiates in all directions from the eart ...
Force Tension Compression Shear and Torsion
... Newton’s first law • States that if the forces of an object are in balance, the object’s speed and direction of motion will not change. – If the forces on an object are in balance, the object’s velocity is constant. 1. This simply means that if an object is not moving, the object will stay still. 2 ...
... Newton’s first law • States that if the forces of an object are in balance, the object’s speed and direction of motion will not change. – If the forces on an object are in balance, the object’s velocity is constant. 1. This simply means that if an object is not moving, the object will stay still. 2 ...
File
... on a fault. 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. ...
... on a fault. 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. ...
Final exam review1
... After a cannonball is fired into frictionless space, the amount of force needed to keep it going equals A. zero, since no force is necessary to keep it moving. B. twice the force with which it was fired. C. one half the force with which it was fired. D. the same amount of force with which it was fi ...
... After a cannonball is fired into frictionless space, the amount of force needed to keep it going equals A. zero, since no force is necessary to keep it moving. B. twice the force with which it was fired. C. one half the force with which it was fired. D. the same amount of force with which it was fi ...
Chapter 8
... What is the total energy of the system? b. What is the amplitude c. At what locations are the valued for the PE and KE the same? Solution: a. ...
... What is the total energy of the system? b. What is the amplitude c. At what locations are the valued for the PE and KE the same? Solution: a. ...
The Ultimate Wave Tahiti Classroom Poster
... waves are everywhere. How many different kinds of waves can you think of? Sound waves, light waves, microwaves, ocean waves, earthquake waves... But how can I see one? What is a wave? Where do they come from? Where do they go? What makes some waves different than others? What do waves mean to me? My ...
... waves are everywhere. How many different kinds of waves can you think of? Sound waves, light waves, microwaves, ocean waves, earthquake waves... But how can I see one? What is a wave? Where do they come from? Where do they go? What makes some waves different than others? What do waves mean to me? My ...
What "Seis" Shake?
... Seismologists are responsible for monitoring earthquakes and other seismic activity. In case you are curious, seismo is the Greek word for earthquakes. Now keep in mind, seismologists may not be near the actual plates when they monitor seismic activity. However, they have the tools to help them loca ...
... Seismologists are responsible for monitoring earthquakes and other seismic activity. In case you are curious, seismo is the Greek word for earthquakes. Now keep in mind, seismologists may not be near the actual plates when they monitor seismic activity. However, they have the tools to help them loca ...
Local copy - John C Lahr
... • Travel time of a seismic wave is the time taken to travel from the hypocenter of the earthquake to the seismometer • Seismologists use the travel time curve to identify seismic phases (P, S, etc.) by determining when they will arrive on a seismogram given how far away the earthquake epicenter is f ...
... • Travel time of a seismic wave is the time taken to travel from the hypocenter of the earthquake to the seismometer • Seismologists use the travel time curve to identify seismic phases (P, S, etc.) by determining when they will arrive on a seismogram given how far away the earthquake epicenter is f ...
Seismic Waves - Faculty Web Pages
... through the material and part is reflected back into the medium that contained the incident wave. In seismology, reflections are used to prospect for petroleum and investigate Earth's internal structure. The amplitude of the reflection depends strongly on the angle that the incidence wave makes ...
... through the material and part is reflected back into the medium that contained the incident wave. In seismology, reflections are used to prospect for petroleum and investigate Earth's internal structure. The amplitude of the reflection depends strongly on the angle that the incidence wave makes ...
Shear wave splitting
Shear wave splitting, also called seismic birefringence, is the phenomenon that occurs when a polarized shear wave enters an anisotropic medium (Fig. 1). The incident shear wave splits into two polarized shear waves (Fig. 2). Shear wave splitting is typically used as a tool for testing the anisotropy of an area of interest. These measurements reflect the degree of anisotropy and lead to a better understanding of the area’s crack density and orientation or crystal alignment.We can think of the anisotropy of a particular area as a black box and the shear wave splitting measurements as a way of looking at what is in the box.