Multiple Choice
Ultramafic lava flows are relatively uncommon.Why is that?
A) They are rarely generated in the mantle.
B) They have a high melting point and the crustal temperature is too low.
C) They are high density and therefore do not rise in the mantle.
D) They have high viscosity like felsic melts.
Correct Answer:
Verified
Correct Answer:
Verified
Q32: Which of the following best describes an
Q33: Which of the following minerals does not
Q34: When equal amounts of a basaltic and
Q35: Which igneous rock was used by Native
Q36: Which of the following tectonic settings has
Q38: Where would you expect to find the
Q39: Which of the following minerals crystallizes from
Q40: The classification of igneous rocks is dependent
Q41: The famous Mother Lode of the 1849
Q42: Which of the following best describes a