@article {Hulme2010,
	title = {{Pore water chemistry of the Mariana serpentinite mud volcanoes: A window to the seismogenic zone}},
	journal = {Geochemistry, Geophysics, Geosystems},
	volume = {11},
	year = {2010},
	pages = {Q01X09},
	abstract = {In 2003, we conducted a survey of 11 serpentinite mud volcanoes in the Mariana fore arc. Here we report sediment pore water data from navigated gravity and piston cores and from push cores collected by the ROV system Jason2-Medea. Systematic variations in profiles of pore water chemical compositions from these mud volcanoes are consistent with models that include active upflow of pore water relative to the surrounding serpentinite matrix. The speed of upwelling, based on fits of an advection-diffusion model to observed data (K, Na, Rb, and Cs), reaches a maximum of 36 cm/yr at Big Blue Seamount. Results from these simulations constrain the pore water composition at depth and the degree of additional alteration as the pore water ascends through the sampled section. For example, the transition metals (e.g., Mn, Fe, Co, Ni, Cu, and Mo) are mobilized under conditions of low upwelling speeds and microbial activity. Similarly, the rare earth elements (REE) show evidence of near-surface alteration. In addition to these surficial reactions, distinctive pore water compositional patterns exist as a function of the distance from the trench axis, which is a proxy for the depths of water generation from the downgoing plate below each seamount. Systematic trends in the chemical composition of these slab-sourced fluids are consistent with increasing temperature and pressure at depth west of the trench. These trends include an increase in K, sulfate, carbonate alkalinity, Na/Cl, B, Mn, Fe, Co, Rb, Cs, Gd/Tb, Eu, and light REE (LREE) and a decrease in Ca, Sr, and Y with increasing distance from the trench. Mg and U are universally depleted in the upwelling water. We constrain the thermal conditions along the d{\'e}collement using concentrations of fluid mobile elements (K, B, Cs, and Rb) and the mobilization of LREE relative to heavy REE (HREE). The 80{\textdegree}C isotherm is estimated at a depth of 15 km between Blue Moon Seamount and Cerulean Springs. At slab depths of 17 to 24 km, pore waters lack significant Rb and K enrichments relative to seawater, suggesting an upper bound near 150{\textdegree}C. There is an observed enrichment in LREE relative to HREE at Big Blue Seamount (slab depth 25 km) indicating that the d{\'e}collement at this site is \~{}200{\textdegree}C. The relative mobilization of Cs outpaced that of Rb at all seamounts sampled in this survey. On the basis of laboratory experiments, this observation sets an upper limit of \~{}350{\textdegree}C at a depth of 30 km below the seafloor.},
	keywords = {ROV Jason (Remotely Operated Vehicle), ROV Medea (Remotely Operated Vehicle)},
	issn = {1525-2027},
	doi = {10.1029/2009GC002674},
	url = {http://dx.doi.org/10.1029/2009GC002674},
	author = {Hulme, S M and Wheat, C G and Fryer, P and Mottl, M J}
}
@article {Wheat2008,
	title = {{Borehole observations of fluid flow from South Chamorro Seamount, an active serpentinite mud volcano in the Mariana forearc}},
	journal = {Earth and Planetary Science Letters},
	volume = {267},
	number = {3-4},
	year = {2008},
	pages = {401{\textendash}409},
	keywords = {ROV Jason (Remotely Operated Vehicle)},
	issn = {0012-821X},
	doi = {10.1016/j.epsl.2007.11.057},
	url = {http://dx.doi.org/10.1016/j.epsl.2007.11.057},
	author = {Wheat, C G and Fryer, P and Fisher, A T and Hulme, S and Jannasch, H W and Mottl, M J}
}
@article {Fryer2006,
	title = {{Variability in serpentinite mudflow mechanisms and sources: ODP drilling results on Mariana forearc seamounts}},
	journal = {Geochemistry, Geophysics, Geosystems},
	volume = {7},
	year = {2006},
	pages = {Q08014},
	keywords = {ROV DSL-120 (Remotely Operated Vehicle), ROV Jason (Remotely Operated Vehicle), ROV Medea (Remotely Operated Vehicle)},
	issn = {1525-2027},
	doi = {10.1029/2005GC001201},
	url = {http://dx.doi.org/10.1029/2005GC001201},
	author = {Fryer, P and Gharib, J and Ross, K and Savov, I and Mottl, M J}
}
@article {Mottl2004,
	title = {{Chemistry of springs across the Mariana forearc shows progressive devolatilization of the subducting plate}},
	journal = {Geochimica et Cosmochimica Acta},
	volume = {68},
	number = {23},
	year = {2004},
	pages = {4915{\textendash}4933},
	keywords = {ROV Jason (Remotely Operated Vehicle)},
	issn = {0016-7037},
	doi = {10.1016/j.gca.2004.05.037},
	url = {http://dx.doi.org/10.1016/j.gca.2004.05.037},
	author = {Mottl, M A and Wheat, C G and Fryer, P and Gharib, J and Martin, J B}
}
@article {Fryer2000,
	title = {{Future research directions in deep submergence science}},
	journal = {Marine Technology Society Journal},
	volume = {33},
	number = {4},
	year = {2000},
	pages = {74{\textendash}79},
	issn = {0025-3324},
	author = {Fryer, P and Fornari, D J and Perfit, M R}
}
@article {Fryer1997,
	title = {{Volcanologic and tectonic evolution of the Kasuga seamounts, northern Mariana Trough: Alvin submersible investigations}},
	journal = {Journal of Volcanology and Geothermal Research},
	volume = {79},
	number = {3},
	year = {1997},
	pages = {277{\textendash}311},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0377-0273},
	doi = {10.1016/S0377-0273(97)00013-9},
	url = {http://dx.doi.org/10.1016/S0377-0273(97)00013-9},
	author = {Fryer, P and Gill, G B and Jackson, M C}
}
@article {McMurty1993,
	title = {{Unusual geochemistry of hydrothermal vents on submarine arc volcanoes: Kasuga Seamounts, Northern Mariana Arc}},
	journal = {Earth and Planetary Science Letters},
	volume = {114},
	number = {4},
	year = {1993},
	pages = {517{\textendash}528},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0012-821X},
	doi = {10.1016/0012-821X(93)90080-S},
	url = {http://dx.doi.org/10.1016/0012-821X(93)90080-S},
	author = {McMurty, G M and Sedwick, P N and Fryer, P and VonderHaar, D L and Yeh, H W}
}
@inbook {Fryer1992,
	title = {{A synthesis of Leg 125 drilling of serpentine seamounts on the Mariana and Izu-Bonin Forearcs}},
	booktitle = {Proceedings of the Ocean Drilling Program, Scientific Results},
	volume = {125},
	year = {1992},
	pages = {593{\textendash}614},
	publisher = {Ocean Drilling Program, Texas A{\&}M University},
	organization = {Ocean Drilling Program, Texas A{\&}M University},
	address = {College Station, Tex.},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	doi = {10.2973/odp.proc.sr.125.168.1992},
	url = {http://dx.doi.org/10.2973/odp.proc.sr.125.168.1992},
	author = {Fryer, P},
	editor = {Dearmont, L H}
}
@article {Taylor1990,
	title = {{Alvin-Seabeam studies of the Sumisu Rift, Izu-Bonin Arc}},
	journal = {Earth and Planetary Science Letters},
	volume = {100},
	number = {1-3},
	year = {1990},
	pages = {127{\textendash}147},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0012-821X},
	doi = {10.1016/0012-821X(90)90181-V},
	url = {http://dx.doi.org/10.1016/0012-821X(90)90181-V},
	author = {Taylor, B and Brown, G and Fryer, P and Gill, J B and Hochstaedter, A G and Hotta, H and Langmuir, C H and Leinen, M and Nishimura, A and Urabe, T}
}
@inbook {Fryer1990,
	title = {{Conical seamount: SeaMARC II, Alvin submersible, and seismic-reflection studies}},
	booktitle = {Proceedings of the Ocean Drilling Program. Part A. Initial Report},
	volume = {125},
	year = {1990},
	pages = {69{\textendash}80},
	publisher = {Ocean Drilling Program, Texas A{\&}M University},
	organization = {Ocean Drilling Program, Texas A{\&}M University},
	address = {College Station, Tex.},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	doi = {10.2973/odp.proc.ir.125.104.1990},
	url = {http://dx.doi.org/10.2973/odp.proc.ir.125.104.1990},
	author = {Fryer, P and Saboda, K L and Johnson, L E and Mackay, M E and Moore, G F and Stoffers, P},
	editor = {Stewart, S K}
}
@article {Fryer1990a,
	title = {{Deep submersibles and potential marine geological research}},
	journal = {Marine Technology Society Journal},
	volume = {24},
	number = {2},
	year = {1990},
	pages = {22{\textendash}31},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0025-3324},
	author = {Fryer, P}
}
@article {Hochstaedter1990a,
	title = {{Volcanism in the Sumisu Rift I: Major element, volatile and stable isotope geochemistry}},
	journal = {Earth and Planetary Science Letters},
	volume = {100},
	number = {1-3},
	year = {1990},
	pages = {179{\textendash}194},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0012-821X},
	doi = {10.1016/0012-821X(90)90184-Y},
	url = {http://dx.doi.org/10.1016/0012-821X(90)90184-Y},
	author = {Hochstaedter, A G and Gill, J B and Kusakabe, M and Newman, S and Pringle, M and Taylor, B and Fryer, P}
}
