Which of the following properly describes the formation of continental crust?
A) All continental crust was formed millions of years ago. There is no active continental crust being formed.
B) The formation of continental crust is independent of the formation of oceanic crust, involving only volcanism over the land masses.
C) The formation of continental crust involves the entire sequence of seafloor spreading, subduction, remelting of oceanic crust, and subsequent rise of the remelted material.
D) New continental crust is formed essentially in the same many as oceanic crust - from upwelling at mid-continental ridges.

Question

Quizplus · Accepted Answer

The formation of continental crust involves a complex process that includes the entire sequence of seafloor spreading, subduction, remelting of oceanic crust, and subsequent rise of the remelted material. This process is known as plate tectonics and is still active today, contributing to the formation of new continental crust over time. Option A is incorrect because while much of the continental crust formed millions of years ago, there is still active formation occurring today. Option B is incorrect because the formation of continental crust is not independent of the formation of oceanic crust. Option D is incorrect because new continental crust is not formed in the same way as oceanic crust but rather through the complex processes involved in plate tectonics.

Which of the Following Properly Describes the Formation of Continental