With water fluoridation of drinking water under the spotlight in the US, we look at why some countries choose not to add the ...

The kids loved watching them duck into their tunnel ... A laccolithic butte of igneous rock sits in the Bear Lodge Mountains. Devils Tower stands 1,268 feet above the nearby Belle Fourche River.

Stuck deciding between granite and marble for your new kitchen countertops? We asked some experts for their insight on ...

This morning’s Duplex reminded me of a news story I was sure I’d clipped, but can’t find. A business professor at the ...

A new study led by University of Wisconsin-Oshkosh geologist Timothy Paulsen and University of Colorado Boulder ...

Sodalite forms in igneous rocks that crystallized from sodium-rich, silica-poor magmas. That’s how it got its name—soda + lithos, or “sodium stone," according to Rock Your World gem & art ...

Geologists recently dated the age of Watersmeet gneiss, a type of rock in the Upper Peninsula, as the oldest in the U.S. Here ...

The scientists dated the rocks using zircon, a mineral in gneiss, the GSA said. "Dating zircon grains using ... techniques is now celebrated as the optimal method for determining when igneous ...

What they were after was a type of metamorphic rock called gneiss (pronounced “nice”). It forms when igneous rocks like granite undergo intense heat and pressure, changing their structure and ...

He described the kids and said they were last seen running on Stearns Road. Police apprehended them and took them to speak with parents. On May 24, a caller reported two juveniles s threw rocks at ...

Not long after, seismic activity dropped off as magma rose to shallow depths and ultimately gave way to oozing molten rock on July 10 ... tissue between the igneous abyss below and the lava ...