A shuddering supervolcano in California is simmering down, not ramping up, thanks to a giant lid that is covering its magma reservoir, new research finds. The Long Valley Caldera in the Eastern Sierra ...

Molten rock, or magma, has a strong influence on our planet and its inhabitants, causing destructive volcanic eruptions and generating some of the giant mineral deposits. Our understanding of these ...

Cooled magma deposits have been discovered under a lunar volcano that likely erupted 3.5 billion years ago. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

Of the geological features in Quarry Park, some of the most diverse involve xenoliths. As mentioned in an earlier column, xenoliths are bits of an older rock that fell into, or were swept away by, a ...

At first glance the rocks that make up Greenland's Isua supracrustal belt look just like any modern basalt you'd find on the sea floor. But this outcrop, which was first described in the 1960s, is the ...

The research was led by Nick Dygert, a postdoctoral fellow in the Jackson School's Department of Geological Sciences, and was published in May in the print edition of Earth and Planetary Science ...

Our planet’s history is written in its rocks. You can traverse eons by brushing your fingers over the layers of a cliff wall. But beyond a certain point, the record goes blank. Though the Earth is ...

The impact that formed the Moon's Orientale basin created a sea of melted rock 220 miles across and 6 miles deep, according to a new analysis. Similar seas of impact melt were probably present in at ...