Open AccessEARTH MODELS WITH CONTINUOUS DENSITY DISTRIBUTION
Author(s) -
Bolt B. A.
Publication year - 1957
Publication title -
geophysical journal international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0956-540X
DOI - 10.1111/j.1365-246x.1957.tb02891.x
Subject(s) - crust , mantle (geology) , outer core , structure of the earth , homogeneity (statistics) , inner core , jump , solid earth , earth model , geology , geophysics , homogeneous , geodesy , statistical physics , physics , mathematics , statistics , quantum mechanics
Summary. Eight different Earth models have been set up, all with the property that the density p varies continuously from just below the crust to the centre. The distributions of the pressure p , gravity g , incompressibility k and rigidity are also given; and values of a parameter equal to (k/p)dp/dp , indicate the deviations from (chemical) homogeneity in the lower mantle and outer core. The models are designed to provide a numerical background towards testing the view that there is no density jump between the Earth's mantle and core. A discussion shows that this view is difficult to reconcile with a homogeneous core unless an implausibly low value is assumed for the density just below the crust.