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The upper mantle of Earth is a very thick layer of rock inside the planet, which begins just beneath the crust (at about 10 km (6.2 mi) under the oceans, and about 35 km (22 mi) under the continents) and ends at the top of the lower mantle, at about 670 km (420 mi). Temperatures range from around 900 K (627 °C; 1,160 °F) at the upper boundary with the…
Art, Seismic structure & Exploration
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mantle upper mi crust km depth transition olivine discontinuity 670 lower pressure seismic phase rock 420 boundary material surface 10
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Upper mantle | causes | the tectonic plates to move.Crust and mantle are distinguished by composition | 0.90 | text |
| plagioclase | instance of | of calcium oxide and aluminum oxide minerals | 0.80 | text |
| spinel | instance of | of calcium oxide and aluminum oxide minerals | 0.80 | text |
| or garnet | instance of | of calcium oxide and aluminum oxide minerals | 0.80 | text |
| depending on depth | instance of | of calcium oxide and aluminum oxide minerals | 0.80 | text |
| Upper mantle | related to Chemical composition | The | 0.60 | section |
| Upper mantle | related to Chemical composition | One | 0.60 | section |
| Upper mantle | related to Mineral composition | The | 0.60 | section |
| Upper mantle | related to Mineral composition | Observations | 0.60 | section |
| Upper mantle | related to Mineral composition | Upper | 0.60 | section |
| Upper mantle | related to Mineral composition | Gradually | 0.60 | section |
| Upper mantle | related to Seismic structure | The | 0.60 | section |
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