Despite seeming like a relatively stable place, the Earth's surface has changed dramatically over the past 4.6 billion years. Mountains have been built and eroded, continents and oceans have moved ...

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 ...

This week's Friday Field Photo is from Permian strata of the Karoo Basin in South Africa. This outcrop displays some spectacular micro-faulting. The alternating lighter and darker colored layers ...

The Malvern Hills are some of the oldest and hardest rocks in the country. Find out more of the origins of the hills. See our picture gallery of Gullet Quarry and the rock strata around it. To ...

As a geologist prowling the landscape along the coast for the past 40 years, I’m often stopped by folks asking what I’m doing. At the time I might be chipping away with my rock hammer, measuring the ...