Modeling the growth of stylolites in sedimentary rocks

Modeling the growth of stylolites in sedimentary

Alexandra Rolland, Institut de Physique du Globe, Université de Strasbourg, 5 rue René Descartes, 67084 cedex, Strasbourg, France ([email protected]) Renaud Toussaint, Institut de Physique du Globe, Université de Strasbourg, 5 rue René Descartes, 67084 cedex, Strasbourg, France ([email protected]) Patrick Baud, Institut de Physique du Globe, Université de Strasbourg, 5 rue ...

A Growth Model for Porous Sedimentary Rocks

A growth model for porous sedimentary rocks is proposed, using a simple computer simulation algorithm. We generate the structure by ballistic deposition of particles with a bimodal size distribution. Porosity and specific surface area are calculated varying the proportion of small and larger particles. Permeability and it’s variation with porosity are studied. The fractal nature of the pore spa...

Sedimentation and Sedimentary Rocks

Sedimentary rocks are one component of the modern threefold classification of rocks. They derive from the lithification of sediments, which are produced in basically two ways: by the mechanical deposition of grains derived from the alteration of other rocks (detrital or clastic rocks), or as chemical precipitates or grains formed organically or inorganically from an aqueous solution. The whole ...

Groundwater in Sedimentary, Metamorphic and Volcanic Rocks

Triple oxygen isotope variations in sedimentary rocks

Relatively large (P0.2&) O anomalies in the geologic record have been used to recognize atmospheric processes such as photochemical reactions and to trace changes in the partial pressures of O2 and CO2 in Earth’s atmosphere through time. However, recent oxygen isotope measurements of terrestrial rocks, minerals and waters also reveal common, smaller (but statistically significant) deviations fr...