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| Description: Origin of Magma Factors that influence the generation of magma from solid rock Role of heat Additional heat is generated by Friction in subduction zones Crustal rocks heated during subduction Rising, hot mantle rocks Factors that influence the generation of magma from solid rock Role of pressure Increase in confining pressure causes an increase in melting temperature Drop in confining pressure can cause decompression melting Lowers the melting temperature Occurs when rock ascends Picture Stats: Views: 268 Filesize: 1.42MB Height: 921 Width: 961 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=39621 |