Hot spots are caused by
A) friction due to the lithosphere sliding atop the asthenosphere.
B) unusually dense concentrations of radioactive isotopes at various points in the crust.
C) hot plumes of mantle material that rise up through cooler,denser surrounding rock.
D) zones of localized subduction that produce melting of the mantle.
Correct Answer:
Verified
Q17: Which of the following is true of
Q29: At transform plate boundaries,
A) earthquakes are common
Q39: Marine magnetic anomalies in oceanic crust result
Q41: What are magnetic anomalies? Why are these
Q43: Transform plate boundaries are unlike other plate
Q44: In a hot-spot volcanic island chain,such as
Q45: Lithospheric plates move relative to other along
Q46: Most of the pulling force driving plate
Q49: Why is it possible for oceanic lithosphere
Q62: How can hot-spot volcanoes be used to
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents