A series of rocks hiding around Colorado's Rocky Mountains may hold clues to a frigid period in Earth's past when glaciers several miles thick covered the entire planet.

On Earth, we find white rocks in a wide array ... with its lack of plate tectonics and a basaltic crust dominated by dark ...

Scientists have calculated the Earth to be 4.54 billion years old, with an uncertainty of 50 million years on either side.

Stephen has a science degree with a major ... Uranium-lead isotopic dating identified the rocks and their injections as 696 ...

Geologists found evidence in the way enigmatic sandstones called Tava formed in the Rocky Mountains hundreds of millions of ...

Liquid-filled rocks form when minerals trap fluids, but depending on their composition they can either be classed as enhydros ...

A new mineral discovered in an abandoned gold mine in Hungary has been named kanatzidisite in honor of Greek scientist ...

Its main goals are to educate people in the areas of Earth science and to train individuals in the various ... Lapidary work ...

Emerging evidence suggests that plate tectonics, or the recycling of Earth's crust, may have begun much earlier than previously thought — and may be a big reason that our planet harbors life.

and economic (minerals and ore deposits) resources, surface and groundwater resources, urban development and land use. The ...

If Earth's history were a calendar year, humans would not appear until the last few minutes before midnight on Dec. 31. During the Proterozoic Eon—2.5 billion years to 543 million years ago—the sun ...