Browsing by Subject "porosity"

Now showing items 1-4 of 4

    • Impact-Induced Porosity and Microfracturing at the Chicxulub Impact Structure 

      Rae, Auriol S. P.ORCIDiD; Collins, Gareth S.ORCIDiD; Morgan, Joanna V.ORCIDiD; Salge, Tobias; Christeson, Gail L.ORCIDiD; Leung, Jody; Lofi, JohannaORCIDiD; Gulick, Sean P. S.ORCIDiD; Poelchau, MichaelORCIDiD; Riller, UlrichORCIDiD; Gebhardt, Catalina; Grieve, Richard A. F.ORCIDiD; Osinski, Gordon R.ORCIDiD; IODP- and ICDP Expedition 364 Scientists (Journal of Geophysical Research: Planets, 2019)
      Porosity and its distribution in impact craters has an important effect on the petrophysical properties of impactites: seismic wave speeds and reflectivity, rock permeability, strength, and density. These properties are ...

    • Quartz Cementation in Polycrystalline Sandstone: Insights From Phase-Field Simulations 

      Prajapati, NishantORCIDiD; Abad Gonzalez, Andres; Selzer, MichaelORCIDiD; Nestler, Britta; Busch, BenjaminORCIDiD; Hilgers, Christoph (Journal of Geophysical Research: Solid Earth, 2020)
      Present work investigates the dynamics of polycrystalline quartz cement growth in sandstone using a multiphase-field model. First, the model parameters corresponding to common reservoir temperature and pressure conditions ...

    • Shallow‐marine carbonate cementation in Holocene segments of the calcifying green alga Halimeda 

      Mann, ThomasORCIDiD; Wizemann, André; Stuhr, MarleenORCIDiD; Kappelmann, Yannis; Janßen, Alexander; Jompa, Jamaluddin; Westphal, Hildegard (Sedimentology, 2021-09-15)
      Early‐diagenetic cementation of tropical carbonates results from the combination of numerous physico‐chemical and biological processes. In the marine phreatic environment it represents an essential mechanism for the ...

    • Spatial variability in river bed porosity determined by nuclear density gauging: A case study from a French gravel‐bed river 

      Tabesh, MinaORCIDiD; Vollmer, Stefan; Schüttrumpf, HolgerORCIDiD; Frings, Roy M. (Sedimentology, 2021-09-16)
      Porosity is one of the key properties of fluvial sediments. It is defined as the ratio of pore volume to total volume. In river science, porosity is often assumed to be spatially constant, which might be a gross simplification ...