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Št. zadetkov: 12
Regular stalagmites
Wolfgang Dreybrodt, Douchko Romanov
Izvirni znanstveni članek
Oznake: karst;stalagmites;growth rates;morphology;scaling law;
Leto: 2008 Vir: dLib.si Digitalna knjižnica Slovenije
Time scales in the evolution of solution porosity in porous coastal carbonate aquifers by mixing corrosion in the saltwater-freshwater transition zone
Wolfgang Dreybrodt, Douchko Romanov
Izvirni znanstveni članek
Oznake: dissolution;corrosion;aquifers;porosity;
Leto: 2007 Vir: dLib.si Digitalna knjižnica Slovenije
Time Scales in the Evolution of Solution Porosity in Porous Coastal Carbonate Aquifers by Mixing Corrosion in the Saltwater-Freshwater Transition Zone
Wolfgang Dreybrodt, Douchko Romanov
Ni določena
Oznake:
Dissolution of calcium carbonate in the saltwater-freshwater mixing zone of coastal carbonate aquifers up to now has been treated by coupling geochemical equilibrium codes to a reactive-transport model. The result is a complex nonlinear coupled set of differential transport-advection equations, whi ...
Leto: 2007 Vir: ZRC SAZU
Regular stalagmites: The theory behind their shape
Wolfgang Dreybrodt, Douchko Romanov
Izvirni znanstveni članek
Oznake:
Under growth conditions constant in time stalagmites grow into an equilibrium shape, which is established, when all points of its surface are shifting by the same vertical distance during a time inter­val. Thereby is the recipitation rate in, is the calcium concentration of the supersatu­rated solu ...
Leto: 2008 Vir: ZRC SAZU
Time Scales in the Evolution of Solution Porosity in Porous Coastal Carbonate Aquifers by Mixing Corrosion in the Saltwater-Freshwater Transition Zone
Wolfgang Dreybrodt, Douchko Romanov
Izvirni znanstveni članek
Oznake:
Dissolution of calcium carbonate in the saltwater-freshwater mixing zone of coastal carbonate aquifers up to now has been treated by coupling geochemical equilibrium codes to a reactive-transport model. The result is a complex nonlinear coupled set of differential transport-advection equations, whi ...
Leto: 2007 Vir: ZRC SAZU
Modelling speleogenesis in soluble rocks: A case study from the Permian Zechstein sequences exposed along the southern Harz Mountains and the Kyffhäuser Hills, German
Georg Kaufmann, Douchko Romanov
Izvirni znanstveni članek
Oznake:
Soluble rocks such as limestone, dolomite, gypsum, anhydrite, and salt can be dissolved by water flowing through voids in the rocks. The removal of the dissolved material from fissures and bedding partings by physical and/or chemical dissolution enlarges the permeability of the soluble rocks within ...
Leto: 2019 Vir: ZRC SAZU
Fracture evolution in soluble rocks: From single-material fractures towards multi-material fractures
Georg Kaufmann, Douchko Romanov, Franci Gabrovšek
Izvirni znanstveni članek
Oznake: soluble rock;single fracture;dissolution and precipitation;inception horizon
We employ a numerical model describing the evolution of secondary porosity in a single fracture embedded in soluble rock (limestone, gypsum, and anhydrite) to study the evolution of isolated fractures in different rock types. Our main focus is three-fold: The identification of shallow versus deep fl ...
Leto: 2017 Vir: ZRC SAZU
The creation of collapse dolines: A 3D modeling approach
Thomas Hiller, Douchko Romanov, Franci Gabrovsek, Georg Kaufmann
Izvirni znanstveni članek
Oznake:
We present a 3D numerical karst evolution model describing mechanisms governing the evolution of collapse dolines. The results confirm the current state of the art of the knowledge about the conditions necessary for a collapse doline to grow. We demonstrate that these geological features develop in ...
Leto: 2014 Vir: ZRC SAZU
Regular stalagmites: The theory behind their shape
Wolfgang; Karst Processes Research Group Dreybrodt, Douchko; Institute of Geological Sciences Romanov
Ni določena
Oznake:
Under growth conditions constant in time stalagmites grow into an equilibrium shape, which is established, when all points of its surface are shifting by the same vertical distance during a time inter­val. Thereby is the recipitation rate in, is the calcium concentration of the supersatu­rated solu ...
Leto: 2008 Vir: ZRC SAZU
Fracture evolution in soluble rocks: From single-material fractures towards multi-material fractures
Georg; Institute of Geological Sciences Kaufmann, Douchko; Institute of Geological Sciences Romanov, Franci; Karst Research Institute ZRC SAZU Titov trg 2 Gabrovšek
Ni določena
Oznake: soluble rock; single fracture; dissolution and precipitation; inception horizon
We employ a numerical model describing the evolution of secondary porosity in a single fracture embedded in soluble rock (limestone, gypsum, and anhydrite) to study the evolution of isolated fractures in different rock types. Our main focus is three-fold: The identification of shallow versus deep fl ...
Leto: 2017 Vir: ZRC SAZU
Št. zadetkov: 12
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