AGU Planet Earth Committee Report : Part II Interior and Crust

Abstract

T h e Ear th ' s man t l e , core , a n d crus t com­ prise 9 9 . 9 8 % of its mass . T h e man t l e , m a k i n g u p t he bulk of t he mass at 70% a n d com­ posed of h i g h e r densi ty rocks (rich in m a g n e ­ sium silicates, p lus some i ron silicates), ex­ t ends an average of 1 5 2 9 0 0 km d e e p . T h e core is the cen te r of t he Ea r th , 2… (More)

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