| 1. | Their lower mantle feathers and upper scapulars are loosely structured and elongated.
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| 2. | The base of the lower mantle is at about 2700 km.
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| 3. | Lower mantle melt rates would form mafic melts that incorporate silicic melts before erupting.
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| 4. | This displacement at the discontinuity will cause the lower mantle to compensate and rise elsewhere.
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| 5. | In the literature, this mineral phase of the lower mantle is also often called magnesiow�stite.
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| 6. | An example of his research was the identification with Jesse Lawrence of the lower mantle Beijing Anomaly.
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| 7. | Chemically, Earth can be divided into the crust, upper mantle, lower mantle, outer core, and inner core.
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| 8. | Two very large, broad, large low-shear-velocity provinces, exist in the lower mantle under Africa and under the central Pacific.
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| 9. | This has been interpreted as their originating from a different, less well-mixed, region, suggested to be the lower mantle.
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| 10. | Geologists have imaged slabs down to the seismic discontinuities between the upper and lower mantle and to the core mantle boundary.
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