Geological Society of America

8:15 AM

ROLE OF HYDROTHERMAL SYSTEMS IN VOLATILE RECYCLING IN SUBDUCTION ZONES

Yuri A. Taran, Institute of Geophysics, UNAM, Mexico, N/A

161429 (Technical Sessions)

8:35 AM

STRUCTURE AND DEPTH OF THE HYDROTHERMAL SYSTEMS OF MASAYA VOLCANO, NICARAGUA

Guillaume Mauri, Simon Fraser University, Burnaby, BC and Glyn Williams-Jones, Simon Fraser University, Burnaby, BC

161918 (Technical Sessions)

8:50 AM

DYNAMIC CONTROLS ON FLUID FLOW AT MASAYA VOLCANO, NICARAGUA

Sophie C.P. Pearson, University of South Florida, Tampa, FL and Koji Kiyosugi, University of South Florida, Tampa, FL and Charles Connor, University of South Florida, Tampa, FL and Jose Armando Saballos, University of South Florida, Tampa, FL and Heather L. Lehto, University of South Florida, Tampa, FL and Ward E. Sanford, U.S. Geological Survey, Reston, VA

162181 (Technical Sessions)

9:05 AM

CONDUIT CONVECTION VS. DEEP DEGASSING AT OPEN VENT VOLCANOES: MELT INCLUSION EVIDENCE FROM POPOCATEPETL VOLCANO, MEXICO

Paul Wallace, University of Oregon, Eugene, OR and Julie Roberge, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, N/A and Hugo Delgado, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, N/A

162602 (Technical Sessions)

9:25 AM

HYDROTHERMAL HEAT DISCHARGE IN THE CASCADE RANGE, NORTHWESTERN UNITED STATES

Steven E. Ingebritsen, US Geol Survey, Menlo Park, CA and Robert H. Mariner, US Geol Survey, Menlo Park, CA

162196 (Technical Sessions)

9:40 AM

STABLE CARBON ISOTOPES OF CO2 AT VOLCANOES OF THE CASCADE ARC

William C. Evans, U.S. Geological Survey, Menlo Park, CA and Robert H. Mariner, U.S. Geological Survey, Menlo Park, CA and Deborah Bergfeld, U.S. Geological Survey, Menlo Park, CA and Kinga M. Revesz, U.S. Geological Survey, Reston, VA

165596 (Technical Sessions)

10:10 AM

HYDROTHERMAL SYSTEM RESPONSE TO THE 2004-2008 ERUPTION AT MOUNT ST. HELENS, WA

Deborah Bergfeld, U.S. Geological Survey, Menlo Park, CA and William C. Evans, U.S. Geological Survey, Menlo Park, CA and Kurt Spicer, U.S. Geological Survey, Vancouver, WA

162821 (Technical Sessions)

10:30 AM

SO2 SCRUBBING BY A SHALLOW AQUIFER: A GROUNDWATER MODEL FOR MOUNT ST. HELENS

Joseph S. Walder, Cascades Volcano Observatory, Vancouver, WA

165962 (Technical Sessions)

10:45 AM

NEW MONITORING TECHNIQUES FOR HYDROTHERMAL SYSTEMS OF POAS AND TURRIALBA VOLCANOES, COSTA RICA

Rachel Teasdale, CSU Chico, Chico, CA and Jamie Wenham, CSU, Chico, Chico, CA and Stephanie Mendes, CSU Chico, Chico, CA and Rodrigo del Potro, OVSICORI-UNA, Heredia, N/A and María Martínez, OVSICORI-UNA, Heredia, N/A and Erick Fernández, OVSICORI-UNA, Heredia, N/A and David Brown, CSU, Chico, Chico, CA

163621 (Technical Sessions)

11:00 AM

TWELVE YEARS OF ELEMENT FLUX MEASUREMENTS AT COPAHUE VOLCANO, ARGENTINA

Johan C. Varekamp, Wesleyan University, Middletown, CT and Tristan Kading, Woods Hole Oceanographic Institution, Woods Hole, MA and Adriana Bermudez, CONICET, Neuquen, N/A and Daniel Delpino, REPSOL-YPF, Neuquen, N/A

165444 (Technical Sessions)

11:15 AM

TRACKING VOLATILE RATIOS THROUGH THE MAGMATIC AND HYDROTHERMAL SYSTEM OF KAWAH IJEN VOLCANO, INDONESIA

Nathalie Vigouroux, Douglas College, New Westminster, BC and Glyn Williams-Jones, Simon Fraser University, Burnaby, BC and A.E. Williams-Jones, McGill University, Montreal, QC and V.J. van Hinsberg, McGill University, Montreal, QC

161893 (Technical Sessions)

11:30 AM

SATELLITE MEASUREMENTS OF VOLATILE EMISSIONS FROM RECENT NORTH PACIFIC ARC ERUPTIONS

Simon A. Carn, Michigan Technological University, Houghton, MI and A.J. Prata, Norwegian Institute for Air Research, Kjeller, N/A and N.A. Krotkov, University of Maryland Baltimore County, Baltimore, MD and K. Yang, University of Maryland Baltimore County, Baltimore, MD and A.J. Krueger, University of Maryland Baltimore County, Baltimore, MD

167247 (Technical Sessions)

T155 Hydrothermal Systems and Volatile Emissions of Volcanic Arcs

Presentations