#author("2022-06-13T22:30:08+09:00","","") Tiny gemstones show when Earth's crust first started moving - Science News for Students Chemical hints observed in zircons suggest when the important process of plate tectonics first took off. Author : #technology #tech #innovation #engineering #business #iphone #technews #science #design #apple #gadgets #electronics #android #programming #software #smartphone #samsung #instagood #coding #computer #pro #instatech #education #security #gadget #mobile #instagram #technologynews #HATINC READ MORE : https://hatinco.com/ancient-zircon-plate-tectonics-subduction-earth.htm