Scientists recently unveiled the nation's newest "oldest known" rock — discovered in Michigan's Upper Peninsula. Michigan, Minnesota and Wisconsin all feature ancient rocks known as gneisses — ...

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Bengaluru's bustling present is anchored by a 3-billion-year-old rock in Lalbagh, a National Geological Monument. This ...

In a recent study, geologists say Michigan is home to the oldest known rock in the nation. Watersmeet gneiss is found in Michigan's Upper Peninsula. Minnesota's Morton gneiss previously held the title ...

Oldest North Cascades bedrock, a 400-million-year-old tale from European origins. The oldest bedrock in all of the North Cascades sits high in the mountains near the Canadian border. Its origin story ...

What we know today as Sabino Canyon was the site of a whole lot of scrunching 25 million years ago. In a geologic nutshell: Two ancient types of rock - 1.4-billion-year-old Oracle granite and ...

The people at the Smithsonian Institution National Museum of Natural History were nice enough to give a couple members of the Chemistry in Pictures team a behind-the-scenes look at their mineral ...

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