The Empirical Relations of Different Variables in Some Folded Anisotropic Media from the Delhi Rocks Around Biliawas, Central Rajasthan

Two new parameters, continuity index (I) and continuity ratio (C/DC), are suggested as measures of anisotropy, which determine the initial instabilities and the types of displacement patterns produced in multilayer media. Both parameters have high significance for anisotropic media having small t/L values for individual competent layers and low values of mean spacing (S). In reality, the values of t/L are dependent upon the continuity index (I). The parameters seem to affect the finite displacement patterns of only the highly or moderately anisotropic media. For complexes of low anisotropy, the parameters are ineffective. The parameters appear to control the bulk displacements but on relatively smaller scales, t/L and S would continue to produce finite patterns characteristic of high anisotropy. Type 1 and type 3 patterns appear to be distinguishable from each other by the presence of double-hinged structures and second order fold pairs in the latter as these are developed under greater differential stress, accompanied by modification of original type 2 reverse conjugate kinks with progressive shortening between ends of layers.