Electronic Resource
Oxford, UK
:
Blackwell Publishing Ltd
Geophysical journal international
16 (1968), S. 0
ISSN:
1365-246X
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Geosciences
Notes:
Using Birch's development of finite-strain theory for the Earth, a simple formula is derived expressing the compression f in terms of the pressure and incompressibility at internal points of the Earth. The formula is free from certain limitations in an earlier formula used by Birch, and is not restricted to the mantle. The formula is applied to determining values of f for six representative Earth models, and preferred estimates of f are set down for the Earth. The results are compared with Birch's earlier estimates of f for the mantle. The computed values of f do not significantly exceed 0·13 in the mantle or 0·20 in the core. Across the mantle-core boundary, f is likely to be nearly continuous; any sudden change is likely to be less than about 5 per cent. The results are subject to the reliability of Birch's form of equation of state for the internal regions of the Earth and, as in Birch's method, neglect possible effects of phase changes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-246X.1968.tb07133.x
|
Location |
Call Number |
Expected |
Availability |
