A HUGE chunk of the Earth’s crust is MISSING – and experts now know why A LARGE chunk of the Earth equivalent to a billion years of rock formation is missing from our planet’s crust, and scientists finally understand why. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:E.P.A. Heads to Coal Country to Hear Views on an Obama Climate RuleTrilobites: Seeking the Source of the Vanishing Great Salt LakeHow Should We Respond to Sexual Harassment?Trilobites: Things Looked Bleak Until These Birds Rapidly Evolved Bigger BeaksConservationists Face Once-Remote Prospect in Arctic Drilling Fight: DefeatDiesel cars unfairly DEMONISED for pollution with levels two times LESS than predicted