Convection in the mantle refers to the slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior of the Earth to the surface. The mantle is located between the crust and outer core, and is around 2,900 km thick. Mantle convection involves the circulation of heated parts of the mantle rock, with typical speeds of 20 mm/yr near the crust, though shallow convection can be faster than deeper convection. A full convection cycle in the upper mantle takes around 50 million years.

1. Convection in the
mantle

2. • The ghosts
• Rebeca Navarro, Mikaela Lara,
Miguel Catañeda, Julian Barragan .

3. What is convection?
• Physics. the transfer of heat by the circulation
ormovement of the heated parts of a liquid or
gas.
• Meteorology. the vertical transport of atmosp
hericproperties, especially upward

5. What is a mantle?
• The mantle is a part of a terrestrial planet or
other rocky body large enough to
have differentiation by density. The interior of
Earth, similar to the other terrestrial planets,
is chemically divided into layers. The mantle is
a layer between the crust and the outer core.
Earth's mantle is a silicate rocky shell about
2,900 kilometres

7. What is convection in the mantle?
• Mantle convection is the slow creeping
motion of Earth's solid silicate mantle caused
by convection currents carrying heat from the
interior of the Earth to the surface. The
Earth's surface lithosphere, which rides atop
the asthenosphere.

8. Speed of convection
• Typical mantle convection speed is 20 mm/yr
near the crust but can vary quite a bit. The
small scale convection in the upper mantle is
much faster than the convection near the
core. A single shallow convection cycle takes
on the order of 50 million years, though
deeper convection can be closer to 200 million
years.

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