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SUMMARY:Isotopic reactive transport approaches to unraveling (bio)geochemi
 cal processes in groundwater systems - Jenny Druhan\, University of Illino
 is Urbana-Champaign
DTSTART:20170207T120000Z
DTEND:20170207T130000Z
UID:TALK69853@talks.cam.ac.uk
CONTACT:Alexandra Turchyn
DESCRIPTION:Water-rock-life interactions take place at interfaces\, and th
 us both fluid composition and the physical and chemical structure of porou
 s media must be treated as coevolving phenomena.  One avenue of addressing
  this coupling is through the use of models that combine the governing equ
 ations of flow\, transport and reactivity.  In this presentation I will de
 monstrate examples of the utility of both numerical reactive transport mod
 els and simplified derivations to address hydrogeochemical problems\, incl
 uding direct simulation of stable sulfur isotope fractionations during mic
 robially-mediated redox cycling and a new derivation of the classic Raylei
 gh model for porous media flow.  The goal is to demonstrate how simulation
 s can be used to interrogate complex field data and thus provide new insig
 hts into the processes governing hydrogeochemical systems. \n\n
LOCATION:Tilley Lecture Theatre\, Department of Earth Sciences
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