In what geologic setting have Precambrian rocks remained largely unchanged for billions of years?
A) at continent collision zones where the deep crust is exhumed and exposed through erosion
B) protected within the interiors of the continents far from plate boundaries
C) in Antarctica where there is very little to no erosion
D) as metamorphic rocks that are too hard to be transformed

Question

Quizplus · Accepted Answer

Precambrian rocks have remained largely unchanged for billions of years due to their protected location within the interiors of the continents far from plate boundaries. These rocks have not been subjected to the tectonic forces that cause most rocks to be recycled over time, which is why they often remain in their original state.

In What Geologic Setting Have Precambrian Rocks Remained Largely Unchanged