Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean. The name "Hadean" comes from the ...

The oldest terrestrial materials ever dated by scientists are extremely rare zircon minerals that were discovered in western ...

Scientists agreed the rocky outcrops in a remote part of Quebec, Canada, were ancient. But were they really Earth’s oldest?

In a recent study, geologists say Michigan is home to the oldest known rock in the nation. Watersmeet gneiss is found in Michigan's Upper Peninsula. Minnesota's Morton gneiss previously held the ...

A belt of volcanic rock along the eastern shore of Hudson Bay in Canada’s Quebec province has been confirmed as the oldest ...

An analysis of minerals in the Watersmeet Gneiss (shown) suggest the metamorphic rock dates to about 3.6 billion years ago, potentially making it the oldest known rock in the United States.

Understanding geology is critical to studying paleontology because fossils are preserved in rock. The characteristics of the rocks that hold fossils can be as informative as the fossils themselves.

ONE of the world’s most difficult to find diamonds has been discovered in North Queensland.

We are part of a research team that has confirmed the oldest known rocks on Earth are located in northern Québec.__ ...