The presence of anisotropy has been established and its parameters have been estimated by the combined use of compressional and shear, SHand SV-waves. Anisotropy has been studied in argillaceous and carbonate rocks to a depth of 2 km by combined surface and borehole observations along longitudinal and non-longitudinal vertical lines with linear shot lines. Anisotropy in carbonate rocks has been found to be a function of their heterogeneity, ordered fracturing and the amount of clay. The highest' anisotropy has been found in argillaceous rocks irrespective of their depth and degree of heterogeneity.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.