EAS 2600 Lecture Notes - Lecture 7: Igneous Rock, Plate Tectonics, Geothermal Gradient
26 Mar 2021
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V o l c ah o f f exam 1 is on. * continental rifttones exams 1oz in old t subduction zones. Ocean plate , ocean plate asiana arc f 80 mic . questions. Euan plate , continental plate: african rift the (and volcanoes given over canvas quizzes ( y, exams ex twerp rings ! Hawaiian islands - volcanic hotspots - stationary (also yellowstone) H originates when solid rock from the crust & upper mantle melts (cid:8869) heat t pressure. * geothermal gradient : la in temp as you go deeper in earth "s surface need to add hutt to melt it - partial melting. (cid:8869) hotshot enough to melt stuff t volatiles t. F d. hop the pressure - can cause decompression melting. Primarily water can cause rock to melt @ lowertemp important role in aumduc-ho. rs volcanism. 4 partial melting igneous rocks are mixtures of different minerals. Produces magma w/higher si content than the og rock.
