What is the definition of subduction erosion?
A) Sediments from the ocean floor are scraped off a subducting tectonic plate and
adhere to the overriding plate.
B) Diverging tectonic plates will cause rocks to slide downward along normal faults.
C) Glaciers extending off the continent will scour deep grooves in continental shelves.
D) Sediment and rock are scraped off the bottom of an overriding plate and transported
into the mantle by a descending plate.
Olivine can be converted to spinel through ________.
A) directed pressure
C) hydrothermal fluids
D) confining pressure
Which factor exerts the greatest control over the velocity of debris flows and the
distance they will travel?