Did you know that Colonial Americans used large sheets of mica as glass for windows?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
Lahar
xLahar : A mudflow or landslide composed of pyroclastic material and water that flows down from a volcano, typically along a river valley. Lahars can be huge, fast, and deadly.
Researchers have found a primitive Earth mantle reservoir on Baffin Island in the Canadian Arctic. Geologist Matthew Jackson and his colleagues from a multi-institution collaboration report the finding--the...Read more