ד"ר ניקולס ולדמן
החוג למדעיים גיאו-ימיים
Research at the PetroLab includes both field and laboratory studies of modern and ancient marine and lacustrine depositional systems. Our research aims to understand the geological processes shaping sedimentary basins, disentangling the impact of tectonics and climate in sedimentation patterns as well as tackling the mechanisms controlling the composition and architecture of basinal sediments. The PetroLab is furnished with state-of-the-art analytical equipment to study the mechanisms in which tectonics and climate change shape sediments and sedimentary basins. Research projects at PetroLab amalgamate the sedimentary record (as is exposed in outcrops or recovered by cores) with subsurface imaging (high-resolution seismic surveys). This allows us to refine the subsurface architecture and generate sequence stratigraphic models leading to climate reconstruction. Moreover, such an approach is very important in hydrocarbon-prone basins leading to an understanding of the signature of fluids in the subsurface, reconstructing the basin's structure and studying overburden integrity. The petrophysical studies include quantitative assessment of pore shapes and sediment permeability. Experiments assess the controlling factors such as porosity, pressure, saturation and mineralogy on the sonic properties in sedimentary cores. A newly acquired GeoTek Multi Sensor Core Logger measures sonic velocity, magnetic susceptibility and gamma-density of sedimentary cores. Our sedimentological projects aim to understand how source-to-sink processes in sedimentary basins influence the spatial and temporal distribution of major and minor chemical elements, granulometry and mineralogy.