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Program Overview

U-Th/He Age Determinations on Volcanic Rocks: A New Tool for Quaternary Geochronologs
Sarah M. Aciego, B. Mack Kennedy, John N. Christensen, Donald J. DePaolo, and Ian Hutcheon

Kinetic Fractionation of LITHIUM Isotopes by Diffusion in Water
John N. Christensen, Frank Richter, and Ruslan Mendybaev

Film Flow along Tunnel Walls
Teamrat A. Ghezzehei and Stefan Finsterle

Air-derived Noble Gases In Sediments: Implications for Basin-Scale Hydrogeology
B. Mack Kennedy, Tom Torgersen, and Thijs van Soest

Noble Gas Isotope Studies of Geothermal Systems
B. Mack Kennedy and Matthijs C. van Soest

Synthesis, Characterization, and Reactivity of Nanoparticulate Goethite
Christopher S. Kim, Jill F. Banfield, and Glenn A. Waychunas

Fault Zone Imaging Using Guided Waves
Valeri Korneev and Robert Nadeau

Joint Inversion for Mapping Subsurface Hydrological Parameters
Ki Ha Lee and Hung-Wen Tseng

Use of 234U/238U Ratios to Measure In Situ Weathering Rates in the Hanford Vadose Zone
Katharine Maher, Donald J. DePaolo, and John N. Christensen

Detection and Identification of Unexploded Ordnance
Frank Morrison, Alex Becker, Erika Gasperikova, and Torquil Smith

Imaging Attenuation in Rock with Heterogeneous Multiphase Fluids
Kurt T. Nihei, S. Nakagawa, and T. Watanabe

Clay Mineral Surface Geochemistry: Structure of Water Adsorbed on a Mica Surface
Sung-Ho Park and Garrison Sposito

Intercomparison of Simulation Codes for Geologic Sequestration of CO2
Karsten Pruess

Investigation of the Effects of Evaporation and Infiltration on Vadose Zone Pore-Fluid  d18O Values at Hanford, Using ToughReact
Michael J. Singleton, Eric L. Sonnenthal, Donald J. DePaolo, and Mark E. Conrad

Uranium Diffusion
Tetsu K. Tokunaga, Jiamin Wan, Jasquelin Pena, Stephen R. Sutton, and Matt Newville

Vanishing of Capillary Hysteresis in Porous Media
Tetsu K. Tokunaga, Keith R. Olson, and Jiamin Wan

Helium Isotope Ratios in South Sister Volcano Vicinity, Cold Springs
Matthijs C. van Soest, B. Mack Kennedy, William C. Evans, Robert H. Mariner, and Mariek E. Schmidt

Nanoparticles in Subsurface Environments: Abundance and Transport of the Mobile Fraction
Jiamin Wan, Guilin Han, Jasquelin Pena, Xiang-Yun Song, and Tetsu Tokunaga

Comparison of the Wet Hematite and Corundum (0001) Surface Structures Determined by Synchrotron X-Ray CTR Analysis
Glenn Waychunas, Thomas Trainor, Peter Eng, and Gordon Brown

Manganese Valence and Mineral Surface Structure Determined with In Situ Soft X-Ray Spectroscopy
Glenn Waychunas, David Shuh, and Mario Villalobos

Sum-Frequency Spectroscopic Studies of Mineral-Water Interfaces
Glenn A Waychunas, Victor Ostroverkhov, and Y. Ron Shen

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