Geochemistry, Geophysics, Geosystems

Assessing Magmatic, Neovolcanic, Hydrothermal, and Biological Processes along Intra-Oceanic Arcs and Back-Arcs

  1. Research Articles

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    2. Research Articles
    1. Understanding a submarine eruption through time series hydrothermal plume sampling of dissolved and particulate constituents: West Mata, 2008–2012 (pages 4631–4650)

      Tamara Baumberger, Marvin D. Lilley, Joseph A. Resing, John E. Lupton, Edward T. Baker, David A. Butterfield, Eric J. Olson and Gretchen L. Früh-Green

      Article first published online: 4 DEC 2014 | DOI: 10.1002/2014GC005460

      Key Points

      • High release of dissolved hydrogen during submarine volcanic eruptions
      • Low release of dissolved methane during submarine volcanic eruptions
      • Decoupled release of different species into hydrothermal plume
    2. Imaging of CO2 bubble plumes above an erupting submarine volcano, NW Rota-1, Mariana Arc (pages 4325–4342)

      William W. Chadwick Jr., Susan G. Merle, Nathaniel J. Buck, J. William Lavelle, Joseph A. Resing and Vicki Ferrini

      Article first published online: 25 NOV 2014 | DOI: 10.1002/2014GC005543

      Key Points

      • CO2 bubble plumes were imaged by multibeam sonar at actively erupting NW Rota-1
      • The bubble plumes reflected the variable style and vigor of eruptive activity
      • The height and shape of the bubble plumes varied in concert with ocean currents
    3. Eruptive modes and hiatus of volcanism at West Mata seamount, NE Lau basin: 1996–2012 (pages 4093–4115)

      Robert W. Embley, Susan G. Merle, Edward T. Baker, Kenneth H. Rubin, John E. Lupton, Joseph A. Resing, Robert P. Dziak, Marvin D. Lilley, William W. Chadwick Jr., T. Shank, Ron Greene, Sharon L. Walker, Joseph Haxel, Eric Olson and Tamara Baumberger

      Article first published online: 31 OCT 2014 | DOI: 10.1002/2014GC005387

      Key Points

      • Unprecedented study of evolution of boninitic submarine volcano over 16 years
      • Eruptive activity in 1996–2010 period occurred both at summit and on rift zone
      • Hiatus in eruptive activity beginning in late 2010 or early 2011
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      New insights on the offshore extension of the Great Sumatran fault, NW Sumatra, from marine geophysical studies

      D. Ghosal, S. C. Singh, A. P. S. Chauhan and N. D. Hananto

      Article first published online: 29 NOV 2012 | DOI: 10.1029/2012GC004122

      Key Points

      • Characterisitics of northerly extended GSF and volcanic arc
      • Pull apart tectonism/sea floor spreading associated to one of the back-arc basins
      • Possible seismic risk at northern offshore Sumatra
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      Flux measurements of explosive degassing using a yearlong hydroacoustic record at an erupting submarine volcano

      R. P. Dziak, E. T. Baker, A. M. Shaw, D. R. Bohnenstiehl, W. W. Chadwick Jr., J. H. Haxel, H. Matsumoto and S. L. Walker

      Article first published online: 29 NOV 2012 | DOI: 10.1029/2012GC004211

      Key Points

      • First continuous, yearlong record of an ongoing seafloor volcanic eruption
      • Developed mathematical method to estimate volcanic gas flux from hydroacoustic data
      • Used melt inclusion information to estimate carbon dioxide flux
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      A new petrogenetic model for low-Ca boninites: Evidence from veined sub-arc xenoliths on melt-mantle interaction and melt fractionation

      A. Bénard and D. A. Ionov

      Article first published online: 28 JUN 2012 | DOI: 10.1029/2012GC004145

      Key Points

      • We propose a new formation model for low-Ca boninite trace element signatures
      • The model is based on primary melt fractionation and reaction with host mantle
      • Low-Ca boninite original melt have island-arc tholeiite trace element signatures
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      Hydrothermal activity in the Northwest Lau Backarc Basin: Evidence from water column measurements

      J. E. Lupton, R. J. Arculus, J. Resing, G. J. Massoth, R. R. Greene, L. J. Evans and N. Buck

      Article first published online: 31 MAY 2012 | DOI: 10.1029/2011GC003891

      Key Points

      • This is the first report of hydrothermal activity in the NW Lau Backarc Basin
      • The region is unique in having a hotspot or OIB influence
      • It is likely that the hydrothermal systems are different from normal MOR systems
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      Volcanic morphology of West Mata Volcano, NE Lau Basin, based on high-resolution bathymetry and depth changes

      David A. Clague, Jennifer B. Paduan, David W. Caress, Hans Thomas, William W. Chadwick Jr. and Susan G. Merle

      Article first published online: 12 NOV 2011 | DOI: 10.1029/2011GC003791

      Key Points

      • High-resolution bathymetry reveals volcanic history of submarine volcanoes
      • Boninite arc volcanoes are mostly pyroclastic debris at angle of repose
      • Small arc volcanoes have rift zones and calderas
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      Unique event plumes from a 2008 eruption on the Northeast Lau Spreading Center

      Edward T. Baker, John E. Lupton, Joseph A. Resing, Tamara Baumberger, Marvin D. Lilley, Sharon L. Walker and Ken H. Rubin

      Article first published online: 16 SEP 2011 | DOI: 10.1029/2011GC003725

      Key Points

      • A small backarc ridge eruption produced multiple small event plumes
      • Fluid lava and plume source fluids interacted but lava cooling was a minor heat source
      • Event plumes may occur during spreading ridge eruptions of any size and style
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      Geochemical evolution of Monowai volcanic center: New insights into the northern Kermadec arc subduction system, SW Pacific

      Christian Timm, Ian J. Graham, Cornel E. J. de Ronde, Matthew I. Leybourne and Jon Woodhead

      Article first published online: 2 AUG 2011 | DOI: 10.1029/2011GC003654

      Key Points

      • Large submarine basaltic caldera
      • Geochemical evolution of Monowai
      • Mantle processes beneath the northern Kermadec arc