Fractal dimensionality of pore and grain volume of a siliciclastic marine sand

Three-dimensional (3D) spatial distributions of pore and grain volumes were determined from high-resolution computer tomography (CT) images of resin-i mpregnated marine sands. Using a linear gradient extrapolation method, cubi c three-dimensional samples were constructed from two-dimensional CT images . Image porosity (0.37) was found to be consistent with the estimate of por osity by water weight loss technique (0.36). Scaling of the pore volume (V- p) with the linear size (L), V similar to L-D provides the fractal dimensio nalities of the pore volume (D = 2.74 +/- 0.02) and grain volume (D = 2.90 +/- 0.02) typical for sedimentary materials.