EAS206 Lecture Notes - Lecture 2: Subduction, Mantle Plume, Banded Iron Formation
Document Summary
Refer r e d to earlier, the idea is tha t as a syste m of ma t e r i a l s, in this case the. Prese n t contri b u t i o n : effecti v e l y non e. Prese n t contri b u t i o n : mini m a l at prese n t ; local and shor t ter m possibl e. Prese n t contri b u t i o n : ong oi n g but min o r , as core cools and cryst al s for m, sinki n g to inne r core: radiogenic heat. Prese n t contri b u t i o n : significa n t but redu c e d (1/5) [in the crust ] Earth "s at m o s p h e r e )