Rocks once buried deep in ancient subduction zones—where tectonic plates collide—could help scientists make better predictions of how these zones behave during the years between major earthquakes, ...

Spread the loveFor over a century and a half, the Green River Formation, located in the western United States, has been a subject of intrigue and debate among geologists. This massive sedimentary rock ...

The Rock Cycle is Earth's great recycling process where igneous, metamorphic, and sedimentary rocks can all be derived from and form one another. Analogous to recycling a Coke can, where an old can ...

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 ...

The badlands also contain hoodoos and a petrified forest. Frank Krahmer/Masterfile/Corbis The formations are comprised of sedimentary rocks like sandstone, shale and mudstone. Frank Krahmer/Masterfile ...

An astonishing new rock formation has been revealed in the Colorado Rockies, and it exists in a deeply perplexing relationship with older rocks. Named the Tava sandstone, this sedimentary rock forms ...