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Summary
| Description |
English: Geothermal gradient (change in temperature with depth). Left- Geothermal gradient in the crust and upper mantle. The geothermal gradient remains below the melting temperature of rock, except in the asthenosphere. There, temperatures are high enough to melt some of the minerals. Right- Geothermal gradient throughout Earth. Rapid changes occur in the uppermost mantle, and at the core-mantle boundary. The red dashed line shows the minimum temperature at which dry mantle rocks will melt. |
| Date | |
| Source | https://pressbooks.bccampus.ca/physicalgeologyh5p/chapter/3-3-earths-interior-heat/ |
| Author | Karla Panchuk (2018), modified after Steven Earle (2016). |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:50, 9 June 2023 | | 2,160 × 1,476 (1.25 MB) | LukeTriton | upscaling |
| 02:45, 9 June 2023 |  | 1,080 × 738 (282 KB) | LukeTriton | Uploaded a work by Karla Panchuk (2018), modified after Steven Earle (2016). from https://pressbooks.bccampus.ca/physicalgeologyh5p/chapter/3-3-earths-interior-heat/ with UploadWizard |
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