Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean. The name "Hadean" comes from the Greek god of the underworld, reflecting the extreme heat that likely ...

The ancient history of Earth has always been hard to read. Most of the planet’s earliest crust has been lost, buried, or melted by geologic processes over billions of years. The rare remnants that ...

Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean. The name “Hadean” comes from the Greek god of the underworld, reflecting the extreme heat that likely ...

Figure 1: Trace element cumulative frequency diagrams for zircons from I- and S-type granites of the Lachlan Fold Belt, and from the Jack Hills. Figure 2: Relationship between the concentrations of ...

Researchers say they might have discovered the oldest rocks on Earth. The rocks in question are a belt of swirly, stripe-covered rocks found in the northeastern reaches of Canada. These rocks appear ...

We are part of a research team that has confirmed the oldest known rocks on Earth are located in northern Québec. Earth formed about 4.6 billion years ago, during the geological eon known as the ...