File:Partial melting asthenosphere EN.svg
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Summary
| Description |
English: Schematic diagram showing the physical processes within the Earth’s upper mantle that lead to the generation of magma. A to D are different plate tectonic settings. The graphs show the geotherm (temperature curve inside the Earth, red) and the solidus (temperature where rock starts to melt, green). When the two curves cross each other, magma is generated by partial melting. A) the curves do not cross - no magma is generated B) at mid-ocean ridges magma generation occurs at quite shallow depths due to high temperatures and very thin lithosphere C) over mantle plumes magma generation occurs at larger depths due to even higher temperatures but thicker lithosphere D) over subducting slabs magma generation occurs at larger depths due to lowering of melting temperature of the rock by fluids released from the slab |
| Date | |
| Source | Own work |
| Author | Woudloper |
| Other versions |
File:Partial melting asthenosphere DE.svg (German) File:Partial melting asthenosphere ES.svg (Spanish) File:Partial melting asthenosphere FR.svg (French) File:Partial melting asthenosphere NL.svg (Dutch) File:Partial melting asthenosphere PL.svg (Polish) |
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 06:55, 26 May 2010 | | 1,000 × 600 (92 KB) | Woudloper | {{Information |Description={{en|1=Schematic diagram showing the fysical processes inside the Earth that lead to the generation of magma. A to D are different plate tectonic settings. The graphs show the [[:w:Geothermal gradient|geot |
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