On inhomogeneity parameters for Backus average

Abstract

In this paper, we discuss five parameters that indicate the inhomogeneity of a stack of parallel isotropic layers. We show that, in certain situations, they provide further insight into the intrinsic inhomogeneity of a Backus medium, as compared to the Thomsen parameters. Additionally, we show that the Backus average of isotropic layers is isotropic if and only if $\gamma =0$. This is in contrast to parameters $\delta$ and $\epsilon$, whose zero values do not imply isotropy.

13 pages, 4 figures, 4 tables

References in corpus (1)

• On effects of inhomogeneity on anisotropy in Backus average