Emerging evidence suggests that plate tectonics, or the recycling of Earth's crust, may have begun much earlier than ...

If Earth's history were a calendar year, humans would not appear until the last few minutes before midnight on Dec. 31.

Recent earth science developments suggest that how we count our planet’s largest land masses is less clear than we learned in ...

In his seminal work of popular geology called Basin and Range, John McPhee first pinned the concept of deep time down on ...

From time to time, when Earth's tectonic plates shift, the planet emits a long, slow belch of carbon dioxide. In a new ...

Cemeteries not only provide a peaceful place to contemplate and commemorate the dead. They are also great places for studying ...

Geologic mapping has been one of the most fundamental mandates of the U.S. Geological Survey (USGS) since its establishment ...

The mantle is split up into two domains — the African and the Pacific — that emerged when supercontinent Pangaea broke apart.

One of the best known examples of that latter phenomenon is the Cambrian Explosion—the geologic period some 530 million years ...

Cratons are believed to be the longest-lived regions of the Earth, but a new study shows how dynamic processes can cause their eventual disintegration.

On Oct. 19, amateur, expert and hobbyist geologists will venture to the Sierra Valley and the Lost Sierra as part of the Nevada Bureau of Mines and Geology’s (NBMG) annual free and public Earth ...