Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. Sedimentation is the collective name ...

Rocks store information from long ago. For instance, their composition can reveal the environmental conditions during their formation. This makes them extremely important in climate research. This led ...

Stylolites — irregular seams that occur in limestone — have been found to affect how acoustic waves move through rock samples. Laboratory-based insights from KAUST researchers offer an improved ...

Our Earth is around 4.5 billion years old. Way back in its earliest years, vast oceans dominated. There were frequent volcanic eruptions and, because there was no free oxygen in the atmosphere, there ...

You would have a hard time finding these common Earth rocks on our neighboring planets. Here’s what makes our landscapes so unique. Limestone landscapes, like this one in the Stone Forest in China’s ...

NASA's Mars rover, 'Perseverance', has discovered a rock sample in Martian bedrock containing the highest concentration of nickel ever analyzed. A joint NASA Mars exploration research team, including ...

Marcia Bjornerud sits in the basement of a soon-to-be-demolished building at Lawrence University in Appleton, Wis. The sole faculty member remaining in a depleted geology department, she sorts through ...