Metamorphism at continent-continent collision zones reflects a greater geothermal gradient compared to subduction zone metamorphism.

Question

Quizplus · Accepted Answer

The collision of two continents leads to the uplift and thickening of the crust. This results in high temperatures and pressures due to the increased geothermal gradient, which leads to metamorphic changes in the rocks. In subduction zones, the metamorphism is mainly the result of the high pressure and low temperature conditions caused by the subduction of oceanic crust. Therefore, metamorphism at continent-continent collision zones reflects a greater geothermal gradient compared to subduction zone metamorphism.

Metamorphism at Continent-Continent Collision Zones Reflects a Greater Geothermal Gradient