Ch14 Questions On Earthquakes Earths InteriorDue
Ch.14 Questions on Earthquakes & Earth’s Interior
(Due Wednesday, November 5th)
Concept Check 14.4
2. List the major differences between P, S, and surface waves.
P & S waves travel within material while Surface waves occur on the outer surface of a material.
Concept Check 14.5
1. What information does a travel-time graph provide?
A Travel Time graph plot the different arrival time of each wave (P wave, S Wave). This allows us to measure distance in relation to the time each wave took to arrive, and give us the distance of the epicenter of an earthquake.
2. Briefly describe the triangulation method used to determine the epicenter of an earthquake. A circle is drawn on a globe around each seismic station; the radius of these circles is equal to the distance from the seismic station to the epicenter; the point where the three circles intersect is the epicenter of the earthquake.
Concept Check 14.7
1. Name the zone in which most strong earthquakes occur Seismic Zone
Concept Check 14.11
1. Briefly describe how seismic waves are used to probe Earth’s interior.
Seismic Wave are used to monitor changes in the ground elevation and variation in straight level near active faults
2. How did Earth acquire its layered structure? Heavier, denser material sink toward the core while light less dense material rise to the surface. Their separation in layers is dependent on the density of the material.
3. Contrast the physical make-up of the asthenosphere and the lithosphere.
asthenosphere – weak sphere, exists below a depth of about 100 kilometers; its rock is easily deformed
lithosphere – sphere or rock, consists of the entire crust and uppermost mantle and forms Earth's relatively cool, rigid outer shell
4. How do continental crust and oceanic crust differ?
Continental Crust - Very thick and contain various types of rocks
Oceanic Crust - Not as thick and is made up of dark igneous rock basalt
End of Chapter Questions (pg.359)
3. Use the accompanying
(Due Wednesday, November 5th)
Concept Check 14.4
2. List the major differences between P, S, and surface waves.
P & S waves travel within material while Surface waves occur on the outer surface of a material.
Concept Check 14.5
1. What information does a travel-time graph provide?
A Travel Time graph plot the different arrival time of each wave (P wave, S Wave). This allows us to measure distance in relation to the time each wave took to arrive, and give us the distance of the epicenter of an earthquake.
2. Briefly describe the triangulation method used to determine the epicenter of an earthquake. A circle is drawn on a globe around each seismic station; the radius of these circles is equal to the distance from the seismic station to the epicenter; the point where the three circles intersect is the epicenter of the earthquake.
Concept Check 14.7
1. Name the zone in which most strong earthquakes occur Seismic Zone
Concept Check 14.11
1. Briefly describe how seismic waves are used to probe Earth’s interior.
Seismic Wave are used to monitor changes in the ground elevation and variation in straight level near active faults
2. How did Earth acquire its layered structure? Heavier, denser material sink toward the core while light less dense material rise to the surface. Their separation in layers is dependent on the density of the material.
3. Contrast the physical make-up of the asthenosphere and the lithosphere.
asthenosphere – weak sphere, exists below a depth of about 100 kilometers; its rock is easily deformed
lithosphere – sphere or rock, consists of the entire crust and uppermost mantle and forms Earth's relatively cool, rigid outer shell
4. How do continental crust and oceanic crust differ?
Continental Crust - Very thick and contain various types of rocks
Oceanic Crust - Not as thick and is made up of dark igneous rock basalt
End of Chapter Questions (pg.359)
3. Use the accompanying