Homework Clinic

Science Clinic => Geography => Topic started by: cmoore54 on Feb 28, 2020

Title: Of the diagrams pictured above, which one represents a hot spot setting? How is such a setting ...
Post by: cmoore54 on Feb 28, 2020

Question 1

Compare and contrast the volcanoes of Alaska with the volcanoes of the Hawaiian islands.

Question 2

Of the diagrams pictured above, which one represents a hot spot setting? How is such a setting evidence for plate tectonic theory, and name one location where such a setting can be found.

Title: Of the diagrams pictured above, which one represents a hot spot setting? How is such a setting ...
Post by: softEldritch on Feb 28, 2020

Answer 1

Students should indicate that while both types of volcanoes come from the ocean floor and are relatively basaltic, the Alaskan volcanoes are caused by an oceanic-oceanic convergent plate boundary (subduction zone) while the Hawaiian volcanoes are caused by a "hot spot" mantle plume located in the middle of a plate and thus not at a plate boundary.

Answer 2

Students should identify letter D as the hot spot setting and that an example of such a location could be the Hawaiian Islands. They should indicate that such a setting provided proof of plate tectonics because of the increasing progression of age as you travel along the island chain away from the hotspot. This provides evidence that a plate was moving over a fixed hot spot.

Title: Re: Of the diagrams pictured above, which one represents a hot spot setting? How is such a setting .
Post by: Steve Johnson on Mar 5, 2020

Thank you.