The chemical makeup of mineral inclusions preserved in impact glass hints at the site of a missing impact crater.

Some other examples of igneous intrusions in Scotland can be found at Dumbarton Rock (a volcanic plug in Dumbarton) and Loudoun Hill (a volcanic plug in Ayrshire). Learn more about some of the ...

Southern China is unusual in that respect: fossil-bearing marine limestones and the volcanic rocks of the Emeishan large igneous province can be studied in the same outcrop sections. This setting ...

What FACTS ABOUT ROCKS do you know? They are abundant on earth, and yet little is known about them. These facts will increase your knowledge of the rocks.

With our ideas of volcanoes we always associate the grand and the terrible ; and a volcanic eruption—a huge piece of artillery, with a mouth perhaps miles in circumference, shooting up rocks and ...

Eventually, all the surrounding soil and rock eroded away, but the harder volcanic (igneous) rock remains, forming Bear Butte. Bear Butte rises 1,253 feet about the surrounding plain. It is 4,426 ...

To understand the genesis and evolution of igneous rocks, a researcher must have sound understanding of analytical methods, thermal and chemical principles, as well as a good geological background. At ...