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SIO15: Topic 9 Volcanoes and Plate Boundaries Image: U.S. - - PowerPoint PPT Presentation
SIO15: Topic 9 Volcanoes and Plate Boundaries Image: U.S. - - PowerPoint PPT Presentation
SIO15: Topic 9 Volcanoes and Plate Boundaries Image: U.S. Geological Survey SIO15: Topic 9 Volcanoes and Plate Boundaries SIO15: Topic 9 Volcanoes and Plate Boundaries SIO15: Topic 9 Volcanoes and Plate Boundaries geotherm Melting
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SLIDE 3
SIO15: Topic 9 Volcanoes and Plate Boundaries
SLIDE 4
SIO15: Topic 9 Volcanoes and Plate Boundaries
SLIDE 5
SIO15: Topic 9 Volcanoes and Plate Boundaries
geotherm Melting curve
P-T P-T cu curve rve of Ea Eart rth T: Temp mpera rature re P: P: Pre Pressu ssure re
Image: S. Marshak “Earth, Portrait of a Planet”
solid melt Me Melting Curve rve P-T P-T co conditions s when ma mantle ro rock ck me melts to left: ro rock ck so solid to ri right: ro rock ck mo molten
SLIDE 6
SIO15: Topic 9 Volcanoes and Plate Boundaries
geotherm Melting curve
asce scending ro rock ck me melts upon cro crossi ssing the me melting cu curve rve
Image: S. Marshak “Earth, Portrait of a Planet”
- mi
mid-o
- oce
cean ri ridges
- co
continental ri rifts
- hotsp
spots solid melt
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SIO15: Topic 9 Volcanoes and Plate Boundaries
vo volatiles s lower r the me melting temp mpera rature re
Image: S. Marshak “Earth, Portrait of a Planet”
melt solid
- su
subduct ction zo zones
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SIO15: Topic 9 Volcanoes and Plate Boundaries
Deco comp mpre ressi ssion (mi (mid-o
- oce