What does the presence of 180-million-year-old salt domes in the Gulf Coast region of the United States indicate?
A)The area was once volcanically active.
B)The area was subjected to plate collisions which caused metamorphism to occur.
C)Subsidence is now occurring due to the withdrawal of magma from the region.
D)A sea used to cover the area but subsequently evaporated.

Question

Quizplus · Accepted Answer

The presence of 180-million-year-old salt domes in the Gulf Coast region of the United States indicates that a sea used to cover the area but subsequently evaporated. As the sea water evaporated, minerals, including salt, were left behind and accumulated over millions of years. This accumulation eventually led to the formation of salt beds and salt domes.

What Does the Presence of 180-Million-Year-Old Salt Domes in the Gulf