New Study Identifies Earth’s Secret Metal Highways Beneath Ancient Continents
12th January 2025
Transitioning to a green economy demands significantly more critical metals—such as copper, rare earth elements, and cobalt—than current supplies can meet. To address this shortage, it is essential to discover new metal resources formed through different geological processes in previously unexplored regions.
New research published on January 8, 2025, in Nature, led by Dr. Chunfei Chen during his postdoctoral work with the Earth Evolution research group at Macquarie University, sheds light on where and how critical metals likely accumulate. The study identifies the margins of ancient continental cores as promising locations for these metal deposits and explains the geological mechanisms behind their formation.
“These cores are the thickest, bowl-shaped, parts of tectonic plates. Melts that form below their centers will flow upwards and outwards towards the edges, so that volcanic activity is common around their edges,” says Chen.