Experimental interaction of hyperalkaline fluid with granitoid shear zone

摘要：

The HPF project (Hyperalkaline Plume in Fractured rock) at the Grimsel Test Site comprises an underground long-term field experiment in a granitoid shear zone with hyperalkaline fluid (K-Na-Ca-OH,pH=13.4 at 15℃). Results document distinct mineral alteration (including Ca-Si-hydrate) that lead to ever decreasing transmissivities in an induced dipole flow field over a 3-year period. 3-D evolution of fluid chemistry, recorded hydraulic changes (radionuclide tracer tests), and post-mortem mineralogical/geochemical and radionuclide-specific analyses make this a one of a kind reactive transport field experiment.

作者: U.K.M(a)der A.M(o)ri B.Frieg J.Eikenberg M.Rüthi A.E.Milodowski S.J.Kemp Ch.Ekberg

作者单位: Rock-Water Interaction, Institute of Geological Sciences, University of Bern, Bern, Switzerland Nagra, Wettingen, Switzerland Paul Scherrer Institut, Villigen, Switzerland British Geological Survey, Key Worth, Nottingham, UK Nuclear Chemistry, Chalmers University of Technology, G(o)teborg, Sweden

会议类型: 国际会议

会议名称: 第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)

会议地点: 昆明

会议语种:英文

页码: 615-619

在线出版日期: 2007-07-31（万方平台首次上网日期，不代表论文的发表时间）