Ancient Rocks in Canada Are Almost as Old as the Earth Itself
Due to the movement of Earth’s tectonic plates, our planet’s crust is constantly recycled, making rocks and minerals from its earliest days incredibly rare. That’s frustrating for geologists, since surface-level Hadean rocks (rocks older than 4.03 billion years) could provide significant insight into the first geological stages of Earth’s 4.5-billion-year history. In a study published today in Early Earth, researchers from Canada and France suggest that the Nuvvuagittuq Greenstone Belt (NGB)—a