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SUMMARY:Two carbon capture and storage talks - Carl Steefl and Jenny Druha
 n
DTSTART:20160324T110000Z
DTEND:20160324T130000Z
UID:TALK65288@talks.cam.ac.uk
CONTACT:Alexandra Turchyn
DESCRIPTION:Talk 1\n\n*Carl Steefl* - Lawrence Berkeley National Lab - "Ne
 w Approaches for Multiscale Modeling of Water-Rock-Gas Interaction"  \n\nC
 arl Steefel has played a leading role in the development of modelling of r
 eactive transport by fluids applicable to rocks. He has played major roles
  in the development of the mathematical representation of reactive transpo
 rt the writing of software to solve the mathematical relationships and the
  application of the modelling to important geological and environmental pr
 oblems.  \n\nAnd then  \n\nTalk 2 \n\n*Jenny Druhan* - University of Illin
 ois Urbana-Champagne - "Reactive Transport approaches to quantify the link
 age between physical structure biogeochemical reactivity and isotope parti
 tioning in aquifers" \n\nBecause these water-rock-life interactions take p
 lace at interfaces\, both fluid composition and the physical and chemical 
 structure of porous media must be treated as coevolving phenomena.  Such 
 complex and interrelated processes can hinder both interpretation and pred
 iction of key environmental processes.  One avenue of addressing this com
 plexity is the use of multicomponent numerical methods that combine the go
 verning equations of flow\, transport and reactivity.  In this presentati
 on I will demonstrate the construction and application of reactive transpo
 rt models to address key hydrogeochemical problems\, with an emphasis on t
 he balance between simulations of complex reactivity versus highly heterog
 eneous hydrologic conditions.  Examples include stable isotope fractionat
 ions during microbially-mediated redox cycling and reactivity in highly re
 solved permeability structures.  The goal is to demonstrate how simulatio
 ns can be used to interrogate complex field data and thus provide new insi
 ghts into the processes governing hydrogeochemical systems.
LOCATION: Harker 2\, Department of Earth Sciences\, Downing Street
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