What is the nature of the relative movement of plates and hot spots? Briefly explain which is fixed and which is moving. Also explain how the Hawaiian-Emperor island chain was formed. Part of being a scientist is questioning everything and testing everything. Thinking creatively, what are two possible reasons for the bend in the island chain? Briefly explain how you could test these two ideas.
What will be an ideal response?
The Pacific plate is moving over the hot spot. The plume of magma has formed the Hawaiian- Emperor seamount chain as the plate has continued to move. The bend at Kimmei could have been caused by the movement of the plate changing or the plume itself moving. To test this, you could look at the motion of the plate at other locations between 48 and 27 mya.
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What caused the Nevadan, Sevier, and Laramide orogenies?
a. a change from a high subduction angle to a low subduction angle b. continental-continental collision c. a change from a low subduction angle to a high subduction angle d. glacial rebound e. emplacement of granitic batholiths
Discuss the concept of wave as an illusion What will be an ideal response?
Why are east-west variation patterns more pronounced in the middle latitudes of the Northern
Hemisphere? a. There is a wide range of temperatures that occur in the Northern Hemisphere. b. There is an almost equal ration of land and water in the Northern Hemisphere. c. There is a high pressure system that always forms over land in the Northern Hemisphere. d. The Coriolis Effect influences the wind pattern more in these regions.