A new study from Harvard geoscientists reports the oldest direct evidence yet of plate motion, dating to 3.5 billion years ago. In a study published March 19 in Science, the researchers found that ...

The history of Earth is written on the great tablets of tectonic plates. The motions of plates shaped land masses, formed oceans, and created the varied climates and habitats that set the stage for ...

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The Sierra Nevada range in California is seen from the north. Crustal rocks deep underneath are in the process of foundering, or sinking into the mantle. Credit: Dicklyon/Wikimedia Commons, CC BY-SA 4 ...

There are 35 large Archean cratons around the world that form the geologic core of tectonic plates. Because they’re located at the interior of plates, these landmasses often remain unaltered over the ...