volcanoes-slides1 - Volcanic Volcanic Hazards Hazards Above...

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Unformatted text preview: Volcanic Volcanic Hazards Hazards Above subduction zones Above subduction zones At divergent boundaries At divergent boundaries At hot spots At hot spots Volcanoes occur: Volcanoes occur: T=1,020C T=1,100C T=1,180C T=1,210C H o t t e r SOLIDUS LIQUIDUS T=1,020C 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 P r e s s u r e ( k i l o b a r s ) 30 60 90 45 15 75 Surface D e p t h ( k i l o m e t e r s ) FIELD OF ALL LIQUID FIELD OF ALL SOLID F I E L D O F S O L I D + L I Q U I D S o l i d u s L i q u i d u s 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 Temperature (C) P Depth Phase diagram, Mantle Rock 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 P r e s s u r e ( k i l o b a r s ) 30 60 90 45 15 75 Surface D e p t h ( k i l o m e t e r s ) FIELD OF ALL LIQUID FIELD OF ALL SOLID F I E L D O F S O L I D + L I Q U I D S o l i d u s L i q u i d u s 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 Temperature (C) Example: What is state of...
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This note was uploaded on 07/31/2011 for the course GLY 2030 taught by Professor Kruse,s during the Fall '08 term at University of South Florida - Tampa.

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volcanoes-slides1 - Volcanic Volcanic Hazards Hazards Above...

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