Are caused when rocks on opposite sides of a break, or fault, in the Earth’s crust move in the same direction at the same speed. There may be “implosion” earthquakes, but they are rare. Some breaks in the crust are well-lubricated and don’t make earthquakes. If rocks on opposite sides of a break move inthe same direction at the same speed, then there will be no relative motion between those rocks, and they won’t make earthquakes. But when rocks try to move in opposite directions but are stuck, they bend like springs and then break, shaking things and knocking them down in an earthquake. And Diet Coke drinkers who have not yet had their caffeine are unlikely to be sufficiently agitated to kick the Pepsi machines hard enough to make the larger earthquakes that are observed.Correct Answer:A Points Earned: 1/1 Your Response: A Continue Contact Penn State ANGEL Support ©2006 ANGEL Learning, Inc. All rights reserved. Rock On #2 Your response has been submitted successfully.
Points Awarded 14 Points Missed 1 Percentage 93% 1.Dave Janesko is explaining the great Sevier Fault to Dr. Alley and the CAUSE class. Dave has just informed everyone that the black rocks, which formed by cooling of a very hot lava flow, are much younger than the red rocks, which formed from sedimentsdeposited in a lake. He has examined the red rocks and found that they have not been "cooked" by heat from the black rocks, so the red and black rocks must have been placed together after the black rocks cooled. And, he has examined the contact between red and black rocks and found that it is a fault that has been scratched by themotion of the rocks along the fault. It is likely that:
Points Earned: 1/1
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