Groundwater flow in an idealized atoll platform is simulated with CASTEM 2000, a computer code developed at the CEA (Commissariat à l’Energie Atomique). Darcy’s law and a coupled solute transport equation (diffusion–dispersion–convection) is solved by the mixed-hybrid finite-element method. Inward and upward circulations of oceanic water are shown to occur. These steady-state circulations resul...

ABSTRACT The presence of archaeocyath-bearing clasts from Cenozoic tills and Cambrian Mount Wegener Formation reveal erosion a hidden carbonate platform in Shackleton Range, Antarctica. We provide microfacies, paleontological, diagenetic tectonically induced fabric data which, addition to available geochemical geochronological allow the paleoenvironmental reconstruction lost Series 2 mixed sili...

new simplified tectonic models and depositional history of late cretaceous rocks are established in a part of zagros orogenic belt that is located in the northeastern iraq. these rocks constutes the most important cretaceous oil reservoir in the middle east. the dependent tools are petrography, field study and the concept of drowning phases. this concept is relatively new and accurate in explan...