Xword_Tectonics

4. Formed by the collision of India end average depth of 4km
7. Process by which andesite can be generated from the mantle at a convergent oceanic-oceanic plate margin
10. Theory was first proposed by Alfred Wegener
13. These values are high over mid-ocean ridges and low over ocean trenches
14. Considered for many years to be the main driving force of plate tectonics, but recently called into question
15. Rock-type formed at depth by the melting of the continental lithosphere at convergent continental-continental plate margins

1. German meteorologist who was right all along so to speak!
2. Volcanic rock that is most commonly associated with divergent plate margins
3. A low-angle fault associated with convergent plate margins
5. Outer layer of the Earth comprises the crust and upper mantle which is solid and rigid
6. Process now thought to be responsible for oceanic lithosphere being subducted back into the asthenosphere
8. Type of fault associated with conservative and divergent plate margins
9. Method used to establish the age of igneous and metamorphic rocks
11. Type of plate margins where two plates are moving away from each older
12. Type of plate margin where two plates are sliding past each other