Continental interiors may not be as tectonically stable as geologists think

Continental interiors may not be as tectonically stable as geologists think 02/21/2018 02:19 PM EST A University of Illinois-led team has identified unexpected geophysical signals underneath tectonically stable interiors of South America and Africa. The data suggest that geologic activity within stable portions of Earth's uppermost layer may have occurred more recently than previously believed. The findings, published in Nature Geoscience, challenge some of today's leading theories regarding plate tectonics. Full story at https://news.illinois.edu/view/6367/614015 Source University of Illinois at Urbana-Champaign This is an NSF News From the Field item. Follow NSF:  This email was sent using GovDelivery Communications Cloud on behalf of: National Science Foundation Update · 2415 Eisenhower Avenue, Alexandria, VA 22314 · 703-292-5111