Sentence examples for dense mantle from inspiring English sources

Instead of the bark and wood that characterize the trunks of seed plant trees, the trunks of tree ferns are composed of rhizomes modified to grow vertically and embedded in a dense mantle of adventitious roots.

This gravitational "step" marks a relatively narrow strip between thin mantle beneath the eastern part of the Eurasian continent (east of the Urals) and thick and dense mantle to the west (Fig. 1).

There's nowhere else in the Solar System that appears to have the geological and geophysical conditions required to get anywhere close – nowhere with the right combination of crustal strength and buoyance above a less dense mantle, a weak enough gravitational field, an insignificant or non-existent persistent mantle plume system, nor the right type of lava (not too fluid, not too sticky).

The Moho is clearly defined by seismic studies, which detect an acceleration in seismic waves as they pass from the crust into the denser mantle.

Combining all available data, scientists have created a picture of the Moon as a layered body comprising a low-density crust, which ranges from 60 to 100 km (40 to 60 miles) in thickness, overlying a denser mantle, which constitutes the great majority of the Moon's volume.

Each one has a core made of heavy metals, accompanied by a less-dense mantle made out of material that fell onto the core later, from beyond the Frost Line.

Earth's crust floats atop the even denser mantle like a skin of cream on milk.

The bulk of the plate is made of oceanic crust, a relatively light layer of rock that floats on the denser mantle like a boat floating on water.

They used the topography readings to subtract the varying gravitational effects of massive volcanoes and the missing mass of deep basins; the remaining variations in gravity had to stem from variations in rock density beneath the surface, including how much crust overlies the denser mantle.

This unique "lowland vs. highland" topography of the Earth is a consequence of the distribution of continental and oceanic crust on the fluidal and denser mantle, each with distinct densities and thicknesses that are on average 2700 vs. 2900 kg/m3 and 40 vs. 6 km, respectively.

The low heat across the Hawaiian Swell indicates that it is not supported by a buoyant crust or upper lithosphere, but is rather propped up by the upwelling hot (and therefore less-dense) mantle plume that causes the surface to rise through a mechanism known as "dynamic topography".