Question

85 percent of modern continental crust was formed by the end of the ____.

Answer 1

Answer:

Archean period.

Explanation:

• The continental crust is a formation of the igneous and the metamorphic and the sedimentary rocks and the areas of the shallow seabeds. A d this crust varies in bulk and is covering about 40% of the surface of the earth and its origin took place on the 2.5 billion years ago with the evolution of the Archean period, when the earth was cooled sufficiently to allow the formation of the crust and had large ocean bodies.

Answer 2

85 percent of the modern continental crust was formed by the end of the Archaean eon.