upper mantle
- noun
- /ˈʌpər ˈmæntl/
- Specialized
:
manto superior
- Diamonds form in the upper mantle from carbon atoms at high pressure at depths greater than about 150 km.
- crust and upper mantle
Diamonds are actually masses of carbon underneath the Earth's surface in the upper mantle of the crust.
- Diamonds are actually masses of carbon underneath the Earth's surface in the upper mantle of the crust.
- It also potentially stripped off the upper mantle, the upper lithosphere of the Earth, and that could have been used.
Examples
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The asthenosphere is a part of the upper mantle that exhibits plastic properties.
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It also potentially stripped off the upper mantle, the upper lithosphere of the Earth, and that could have been used.
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It also potentially stripped off the upper mantle, the upper lithosphere of the Earth, and that could have been used.
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Thus, changes in the spacecraft's orbital velocity and models of the planet's gravitational field derived from those changes, along with topographic measurements, should tell much about the internal structure of Mars, allowing scientists to study the Martian crust and upper mantle.
Academic text (1992) -
Most volcanoes begin in the relatively cool upper mantle and shoot up along the rims of tectonic plates.
How Deep
- Specialized
130
4.9
- Specialized
- Specialized
- Specialized
47
4.9
Surface Forms
Morphology
The phrase 'upper mantle' is a straightforward adjective + noun combination: 'upper' (toward the top) modifying 'mantle' (the Earth's silicate layer), so the meaning 'the top part of the mantle' is directly derivable from the constituents. This locative compositional pattern is cross-linguistically common and follows regular English formation, so a B1 learner who knows both words would readily understand it.
Etymology
The term upper mantle comes from the idea of the Earth wearing a thick cloak: mantle means a covering and upper shows it is the top part of that covering under the crust. So, the name tells us it is the top layer beneath the Earth's crust and explains why this part moves slowly and helps the Earth's plates to shift.