Evolution, hydrothermal assimilation, and ascent of magma inferred from volatile contents in MORB glasses: An example from thick lava pile at IODP Site 1256

Earth & Environmental Sciences

• assimilation 82%
• basalt 23%
• brine 16%
• fractional crystallization 9%
• glass 71%
• hyaloclastite 13%
• hydrothermal circulation 12%
• lava 95%
• loss 4%
• magma 71%
• magma chamber 29%
• matrix 16%
• melt 33%
• mid-ocean ridge basalt 100%
• Ocean Drilling Program 10%
• pile 80%
• salinity 12%
• saturation 26%
• seafloor 45%
• volatile element 12%
• volcanic eruption 7%

Chemical Compounds

• Fractional Crystallization 12%
• Glass 63%
• Pressure 32%
• Salinity 10%
• Time 6%