A large river carrying massive amounts of sediment to the ocean every year and accumulates on the delta produces __________ metamorphism.
A) regional dynamothermal
B) hydrothermal
C) contact
D) burial

Question

Quizplus · Accepted Answer

The accumulation of sediment on the delta produces burial metamorphism, which is caused by the weight and pressure of the overlying sediment. Regional dynamothermal metamorphism is caused by tectonic forces over a large region, hydrothermal metamorphism is caused by hot fluids circulating through rocks, and contact metamorphism is caused by the heat of an igneous intrusion. None of these processes are directly related to the sediment accumulation on a delta.

A Large River Carrying Massive Amounts of Sediment to the Ocean