The Volume of Earth’s Mantle

For a fire is kindled in My anger, And shall burn to the lowest hell; It shall consume the earth with her increase, And set on fire the foundations of the mountains.

(Deuteronomy 32:22) NKJV

It’s very useful to know the volume of material in the Earth’s crust and mantle, but before we move on it’s also worthwhile to note that the Earth’s crust and mantle have several Biblical synonyms.

Crust and Mantle, Synonyms

UsageHebrewTransliterationScripture
bottoms of the mountainsלְקִצְבֵ֤י הָרִים֙qetseb harJonah 2:6
foundations of the hillsוּמוֹסְדֵ֣י הָרִ֣יםmowcadah harPsalms 18:7
foundations of the mountainsוּמוֹסְדֵ֣י הָרִ֣יםmowcadah harDeut. 32:22
foundations of the worldמוֹסְד֪וֹת תֵּ֫בֵ֥לmowcadah tebelPsalms 18:15

This isn’t a particularly complex problem. We can estimate the volume of material that’s in the earth’s mantle at the present time by using the boundaries of the regions of the earth that we get from seismological data.

If we assume that this volume of material was a hollow sphere, of which the inner radius is the same as the present day earth surface, then we can calculate the radius of the earth on the 3rd day. There is a useful tool that helps with these calculations which may be found here.

Earth, Present Day (values)

Earth, Present DayApprox. radius (km)vApprox. volume (m3)
Volumetric radius6,371v11.08E+12
Inner surface of mantle4,100v22.89E+11
Mantle material (v1-v2)v37.95E+11
3rd day total volume (v1+v3)7,653v41.88E+12

Volume of Earth’s Mantle

FactorSymbolRadiusVolume
Earth total volumep6,371 km1.08E+12 m3
Volume of core and great gulfg4,100 km2.89E+11 m3
Volume of mantle materialp-g (m)7.95E+11 m3
– Calculating the volume of mantle material.

The total volume of present day Earth is 1.08E+12 m3

The volume of material in the crust and mantle is found by subtracting the volume of a sphere of radius 4,100 km from the volume of a sphere of radius 6,371 km

The area between the lower mantle and the core is open space, the great gulf. There’s no inner and outer core. That’s just a contrivance of popular science (SciPop) to make it seem like they know what they’re talking about, and they want to believe (and they want you to believe) that there’s no hell. The core is hell. This isn’t a euphemism.


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