@article{eage:/content/journals/10.1111/1365-2478.12804, author = "Roganov, Yuriy and Stovas, Alexey and Roganov, Vyacheslav", title = "Low‐frequency layer‐induced dispersion in a weak‐contrast vertically heterogeneous orthorhombic medium", journal= "Geophysical Prospecting", year = "2019", volume = "67", number = "9 - Advances in Seismic Anisotropy", pages = "2269-2279", doi = "https://doi.org/10.1111/1365-2478.12804", url = "https://www.earthdoc.org/content/journals/10.1111/1365-2478.12804", publisher = "European Association of Geoscientists & Engineers", issn = "1365-2478", type = "Journal Article", keywords = "Elastics", keywords = "Theory", keywords = "Anisotropy", abstract = "ABSTRACT In this paper, we consider wave propagation in a periodically layered medium with orthorhombic symmetry. The weak‐contrast approximation is utilized to derive the low‐frequency dispersion in effective properties for P, S1 and S2 waves. We show that the dispersion term for all effective properties is controlled by the second‐order contrasts in elastic properties from the layers. We also compute the sensitivity matrices for second‐ and fourth‐order coefficients from eigenvalues of frequency‐dependent system matrix associated with kinematic parameters for individual wave modes.", }