Question 6 6. The asthenosphere is known from O (A) a low velocity zone in the upper mantle O (B) a high velocity zone in the upper mantle O (C) deep mantle rocks exhumed at mid ocean ridges (D) Pratts law estion 7 7. The Moho and the base of the lithosphere are the same O (A) true O (B) false Question 8 8. The low seismic velocity zone is caused by O a change in rigidity of the mantle in the asthenosphere O a change in mantle density associated with phase transformation O the transition from the crust o the mantle O all of the above
Question 6 6. The asthenosphere is known from O (A) a low velocity zone in the upper mantle O (B) a high velocity zone in the upper mantle O (C) deep mantle rocks exhumed at mid ocean ridges (D) Pratts law estion 7 7. The Moho and the base of the lithosphere are the same O (A) true O (B) false Question 8 8. The low seismic velocity zone is caused by O a change in rigidity of the mantle in the asthenosphere O a change in mantle density associated with phase transformation O the transition from the crust o the mantle O all of the above
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
Related questions
Question

Transcribed Image Text:Question 6
6. The asthenosphere is known from
O (A) a low velocity zone in the upper mantle
O (B) a high velocity zone in the upper mantle
O (C) deep mantle rocks exhumed at mid ocean ridges
(D) Pratts law
estion 7
7. The Moho and the base of the lithosphere are the same
O (A) true
O (B) false
Question 8
8. The low seismic velocity zone is caused by
O a change in rigidity of the mantle in the asthenosphere
O a change in mantle density associated with phase transformation
O the transition from the crust o the mantle
O all of the above

Transcribed Image Text:the deepest earthquakes occur?
in the aestheonosphere
in the outer core
in subducting plates
O in the roots of large mountains
Question 8
Earthquake intensity is measured on what scale
mercali scale
moment scale
logarithmic scale
Richter scale
Question 9
The severity of shaking during an earthquake depends upon all of the following except
magnitude of the earthquake
distance from the focus
time of year of the earthquake
nature of the substrate
Expert Solution

Step 1 Answer
6. A Asthenosphere is known as the low velocity zone in the upper mantle.
7. False
8. All of the above
The deepest Earthquake occur in the subducting plate
8. Earthquake intensity is measured on mercalli scale.
9. The severity of the shaking during an earthquake is depends upon all of the following except time of the year of the earthquake.
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