2017
DOI: 10.3986/ac.v46i2-3.5135
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Fracture evolution in soluble rocks: From single-material fractures towards multi-material fractures

Abstract: IzvlečekUDK 551.435.8 Georg Kaufmann, Franci Gabrovšek & Douchko Romanov: Odvisnost kraškega razvoja razpoke od vrste in zaporedja vodotopnih kamnin, skozi katere poteka Z numeričnim modelom smo raziskovali razvoj sekundarne poroznosti v enodimenzionalni razpoki v apnencu, sadri in anhidridu. Cilji raziskav so bili: 1) ugotoviti razlike med razvojem plitvih in globokih razpok v različnih kamninah; 2) oceniti učinek morebitnega izločanja enega od mineralov v razpoki in 3) dinamika rasti razpoke, ki gre skozi pl… Show more

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Cited by 4 publications
(8 citation statements)
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“…The chemical kinetics for gypsum has similar formulations to limestone, expressed as equations ((27)) and ((29)), in which the relevant parameters are listed in Table 2. The dissolution kinetics of natural gypsum changes from a linear to a nonlinear rate law at a very close chemical (Birk et al, 2003;Kaufmann et al, 2017 (Birk et al, 2003). In addition, the equilibrium concentration is approximately 15.0 mol/m 3 (Kaufmann et al, 2017).…”
Section: Enlargement Of Fracturesmentioning
confidence: 99%
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“…The chemical kinetics for gypsum has similar formulations to limestone, expressed as equations ((27)) and ((29)), in which the relevant parameters are listed in Table 2. The dissolution kinetics of natural gypsum changes from a linear to a nonlinear rate law at a very close chemical (Birk et al, 2003;Kaufmann et al, 2017 (Birk et al, 2003). In addition, the equilibrium concentration is approximately 15.0 mol/m 3 (Kaufmann et al, 2017).…”
Section: Enlargement Of Fracturesmentioning
confidence: 99%
“…We simply prescribe a constant head difference of 37 m imposed on the circulation system for both scenarios. Table 3 Parameters Used for Case Studies (Birk et al, 2003;Hanna & Rajaram, 1998;Kaufmann, 2009;Kaufmann et al, 2017;Kaufmann & Dreybrodt, 2007…”
Section: 1029/2019wr025631mentioning
confidence: 99%
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“…Here, experimental data are rare, and only precipitation with calcite and limestone is based on experimental data (Buhmann & Dreybrodt 1985b;Dreybrodt & Buhmann 1991). For precipitation rates of anhydrite and gypsum, we simply assume a linear relation (see Kaufmann et al 2017 for more details). This assumption rests on the fact, that during dissolution impurities accumulate on the interface solution-rock, and are responsible for the non-linear rates close to equilibrium, while during precipitation the pure mineral species will deposit, which we assume can be described by a linear rate law.…”
Section: Flux Ratesmentioning
confidence: 99%
“…In recent years, infiltration, flow and transport through karst aquifers has been thoroughly studied using various methods and techniques including natural and artificial tracers observed at cave drips or at aquifer outlets, and modelling (e.g., Emblanch et al 2003;Perrin et al 2003;Birk et al 2004;Pronk et al 2009;Doummar et al 2012;Kogovšek & Petrič 2014;Kübeck et al 2013;Mudarra et al 2014;Biondić et al 2016;Fehér et al 2016;Kaufmann et al 2017). These studies are very important, since they all contribute to better understanding of the aquifer's intrinsic properties, which is a prerequisite for proper interpretation and prediction of their behaviour, and for test hypotheses or assumptions.…”
Section: Introductionmentioning
confidence: 99%