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

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

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

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

The Hadean Eon, Earth's first geological period, remains shrouded in mystery due to scarce rock records. However, Québec's ...

Rocks from the Hadean Eon, the first period in the geological timescale, have been dated in Québec. These are some of the ...

Remains of this key transitional species date to a mysterious "black hole" in the fossil record.

Geologists from the University of Hong Kong (HKU) have made a breakthrough in understanding how Earth's early continents ...

The ancient history of Earth has always been hard to read. Most of the planet’s earliest crust has been lost, buried, or ...

Part of the issue was the lack of zircon, the hardy mineral often used for dating ancient ... Two isotope systems gave matching ages, strengthening the case that this rock is genuinely from the Hadean ...

The zircon U-Pb dating results indicate that the meta-mafic and felsic rock assemblages yield crystallization ages ranging from 2.47 to 2.39 Ga, with metamorphic ages between 1.91 and 1.83 Ga. The ...