Earth’s First Crust was surprisingly similar to Today’s Composition: Study – ryan

Turner’s hypothesis was further supported by the behavior of other siderophile elements in their model.

These are elements attracted to iron, such as that found in Earth’s core during its formation.

Over billions of years, it seems Continental Crust has retained this original chemical signature.

It was less influenced by the intense bombardment of meteorites around 3.8 billion years ago, which altered Earth’s Mantle Composition.