Electronic Resource
Oxford, UK
:
Blackwell Publishing Ltd
Geophysical journal international
5 (1945), S. 0
ISSN:
1365-246X
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Geosciences
Notes:
A method is given of deriving the main features of the seismological travel-time tables from various assumed forms of the ray velocity variation. Attention is drawn to the utility of the functions dΔ/dp/dΔ and Σ in this connection. Attention is also drawn to the utility of the approximate formula v = arb which is both simple in application and gives very accurate results in parts of the Earth's interior, notably the region between the crustal layers and the level reached by rays for which Δ= 20°.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-246X.1945.tb06828.x
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