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Sunday, 20 October 2013

Geology question help?

Hello there, I'm trying to finish some homework but stuck with these 3 qns. Thanks so much!

3. Metamorphic processes may result in?
a) deformation
b) mineralogical changes
c) deposition of conglomerates
d) formation of current structures

4. What process causes melting of the mantle at subduction zones?
a) addition of volatiles from the subducting plate
b) decompression melting
c) heat transfer
d) convection

16. Which of the following is generally a considered failed planetesimal?
a) comet
b) pluto
c) asteroid

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