Standing guard over the valley, Sentinel Rock’s near-vertical north face was carved by dramatic rockfalls that split the cliffside. Weathering and erosion continue to sculpt Yosemite Valley, and ...

I’ve been thinking about granite a lot recently; primarily because we have been covering plate tectonics in my AP Environmental Science class. Granite figures prominently in this discussion because ...

We say we're in the Granite State, but actually New Hampshire's rocky foundation is less than half granite. What are those other rocks? And how did they get there? For answers we turn to Granite Geek ...

With house-size boulders tumbled across its scarred surface and slanted, twisted peaks looming over its iconic namesake trees, Joshua Tree National Park’s preternatural terrain evokes extraterrestrial ...

Researchers from the US space agency NASA have said that granite – an igneous rock common on Earth— could be found in abundance on Mars. Researchers from the US space agency NASA have said that ...

Rock is a solid mass of minerals that have joined together over time. Geology is the study of how the Earth is formed and the things that happen to the Earth. As part of this, geologists study rocks ...

Igneous rocks are rebels. Sedimentary rocks follow straight-forward rules—they are deposited in horizontal layers, with the oldest sediments on the bottom. Igneous rocks can do what they want. Molten ...

Marble is best known for what it can be made into — incredible artworks or tacky ashtrays. But before it was that prized white-grey rock, marble was something a lot more pedestrian — limestone. For ...

I’ve been thinking about granite a lot recently; primarily because we have been covering plate tectonics in my AP Environmental Science class. Granite figures prominently in this discussion because ...