B) Magma plutons
C) Short-lived radioactive isotopes
D) Nuclear reactions
Which of the following rocks would be more likely to experience brittle deformation
rather than ductile deformation when subjected to stresses that exceed their strength?
A) Rock salt
Why will metamorphic rocks found in a contact metamorphism aureole be nonfoliated?
A) Because the main agent of metamorphism is heat, which will result in intergrown
B) Because the pressures involved with contact metamorphism destroy foliated crystals
C) Because the temperatures associated with this are too low to alter the rock
D) Because the velocity of the hydrothermal fluids will carry foliated materials away