What does CMB stand for?

Core-Mantle Boundary

This definition appears very rarely and is found in the following Acronym Finder categories:

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Samples in periodicals archive:

Their simulations show that as fluid mixes in the outer core, magnetic energy is transferred from the dipole to smaller scales, producing patches of reversed magnetic field at the core-mantle boundary and weakening the dipole.

Mixing in Earth's outer core causes geomagnetic dipole to collapse

The researchers performed lab tests on samples of an iron-rich silicate having a particular crystal structure, called a postperovskite phase, that scientists presume occurs near the core-mantle boundary.

Seismic speed traps: iron-rich regions may slow deep-earth vibes

But Earth's rocky mantle continues down for another inaccessible 2,690 kilometers to the core-mantle boundary at 2,890 kilometers (1,800 miles).

Conduits into Earth's inaccessible interior: hot plumes from deep ...

Unlike old soldiers, they don't fade away--they just tumble to the Earth's core-mantle boundary.

Inner Earth mapping reveals lost sea

The surface is the top of the mantle (the Mohorovicic discontinuity, see page 63), and the bottom is the core-mantle boundary (CMB).

Global seismic tomography

Six of those regions--those that lie beneath Ascension Island in the South Atlantic, the Azores and Canary Islands in the North Atlantic, and Easter Island, Tahiti, and Samoa in the Pacific--clearly extend all the way to the core-mantle boundary.

Volcanic hot spots: molten messengers from deep within the earth

a short, powerful pulse of known geographical origin, enables scientists to identify more precisely details of the core-mantle boundary "We have a high-resolution picture of one [small] place now, using this very sharp, powerful explosion:' Vidale says.

A-blast lights up core-mantle boundary

During the past few years, seismologists have contributed their own revelations concerning the core-mantle boundary by discovering that the interface is not a flat sheet but instead a bumpy area (SN: 6/11/88, p.

Meeting of mantle, core no longer a bore