Igneous Processes

Igneous Processes / 05A / Leighty / Physical Geology (GLG 101IN) This is an overview of the formation of magmas and the processes that affect them as they develop and rise. 0:00 Igneous Processes 0:33 The rock cycle 1:27 Heat within the Earth 2:16 The D-T diagram 2:48 The geothermal gradient 4:17 Crossing the solidus 6:14 Rock composition and melting 6:57 How does solid rock melt? /Temperature increase 7:38 How does solid rock melt? / Pressure decrease 8:25 How does solid rock melt? / Adding water 9:51 Magmatism & plate tectonics / Divergent margins 10:35 Magmatism & plate tectonics / Intraplate hotspots 11:21 Hawaiian hotspot 13:23 Yellowstone hotspot 14:01 Magmatism & plate tectonics / Convergent margins 14:56 Villarica stratovolcano (Andes) 15:40 Mt. Hood stratovolcano (Cascades) 16:32 Rising magma 17:27 Magma processes / Differentiation 18:38 Magma processes / Magma mixing 19:07 Magma processes / Assimilation 20:00 Magma processes / Crystallization 20:31 Magma processes / Crystal settling 20:47 Magma processes / Crystal fractionation 21:08 Outro