Flameproofing baby products, early tectonics, the future of tomatoes and more in this week's news
By Science News, 10:44 AM June 4, 2011
Early plate tectonics
Slivers of ancient rock may show that plate tectonics, the movement of large chunks of crust that is a defining feature of Earth’s surface today, has been happening for at least 3.7 billion years. Researchers in England, Australia and China say they’ve identified intact pieces of the Earth’s mantle in the ancient, highly squished rocks of southern Greenland. If so, the slivers must have come from one early crustal plate diving beneath another, scraping up pieces of the...
Source URL: https://www.sciencenews.org/article/earthenvironment-15