Transverse isotropy
（重定向自Transversely isotropic）
![Transverse Isotropy is observed in sedimentary rocks at long wavelengths. Each layer has approximately the same properties in-plane but different properties through-the-thickness. The plane of each layer is the plane of isotropy and the vertical axis is the axis of symmetry.](/Images/godic/202502/17/USA_10052_Grand_Canyon_Luca_Galuzzi_20072330.jpg")
![A transversely isotropic elastic material.](/Images/godic/202502/17/Transverse_Isotropy.svg2331.png")
A transversely isotropic material is one with physical properties which are symmetric about an axis that is normal to a plane of isotropy. This transverse plane has infinite planes of symmetry and thus, within this plane, the material properties are the same in all directions. Hence, such materials are also known as "polar anisotropic" materials.