All of the following statements about hot spots are true, except: a. The Hawaiian Islands are...


All of the following statements about hot spots are true, except:

a. The Hawaiian Islands are examples for hot spots,

b. All these answers are correct,

c. The hot spots occurs within tectonic plates,

d. The hot spots prove that tectonic plates are not stationary.

Hot Spots and Plate Tectonics

One of the most important developments in geology over the past century has been the theory of plate tectonics. This is the idea that the Earth's crust is not a single chunk of rock surrounding the mantle, but rather that the crust is broken into pieces that drift and push against each other, called plates. The motion of these plates, driven by convection currents in the mantle, is the underlying reason for the shape of continents, the location of mountain ranges, and the generation of earthquakes and volcanism.

Answer and Explanation:

Hot spots are anomalous places in the midst of tectonic plates where the mantle pushes its way up and out to the surface, straight through the plate. These take the form of isolated volcanoes, or archipelagoes (if the hot spot is in the ocean). The former is when the plate is relatively stationary, and the latter is when the plate moves. The upwards moving magma maintains its place, but the shifting plate means that over time, the magma breaks through in different places, making chains of volcanic islands that track the motion of the plate. The Hawaiian islands are a prime example.

All of the answers are true, which means that none are false and it's a bit of a trick question.

Learn more about this topic:

Plate Tectonics: Theory & Definition

from General Studies Earth & Space Science: Help & Review

Chapter 7 / Lesson 5

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