@article {Teske2016,
	title = {{The Guaymas Basin Hiking Guide to Hydrothermal Mounds, Chimneys, and Microbial Mats: Complex Seafloor Expressions of Subsurface Hydrothermal Circulation}},
	journal = {Frontiers in Microbiology},
	volume = {7},
	year = {2016},
	pages = {75},
	abstract = {The hydrothermal mats, mounds, and chimneys of the southern Guaymas Basin are the surface expression of complex subsurface hydrothermal circulation patterns. In this overview, we document the most frequently visited features of this hydrothermal area with photographs, temperature measurements, and selected geochemical data; many of these distinct habitats await characterization of their microbial communities and activities. Microprofiler deployments on microbial mats and hydrothermal sediments show their steep geochemical and thermal gradients at millimeter-scale vertical resolution. Mapping these hydrothermal features and sampling locations within the southern Guaymas Basin suggest linkages to underlying shallow sills and heat flow gradients. Recognizing the inherent spatial limitations of much current Guaymas Basin sampling calls for comprehensive surveys of the wider spreading region.},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	doi = {10.3389/fmicb.2016.00075},
	author = {Teske, A P and de Beer, D and McKay, L J and Tivey, M K and Biddle, J F and Hoer, D R and Lloyd, K G and Lever, M A and Roy, H and Albert, D B and Mendlovitz, H P and MacGregor, B J}
}
@article {McDermott2015,
	title = {{Identification of sulfur sources and isotopic equilibria in submarine hot-springs using multiple sulfur isotopes}},
	journal = {Geochimica et Cosmochimica Acta},
	volume = {160},
	year = {2015},
	pages = {169{\textendash}187},
	abstract = {Multiple sulfur isotopes were measured in metal sulfide deposits, elemental sulfur, and aqueous hydrogen sulfide to constrain sulfur sources and the isotopic systematics of precipitation in seafloor hydrothermal vents. Areas studied include the Eastern Manus Basin and Lau Basin back-arc spreading centers and the unsedimented basalt-hosted Southern East Pacific Rise (SEPR) and sediment-hosted Guaymas Basin mid-ocean ridge spreading centers. Chalcopyrite and dissolved hydrogen sulfide (H2S) $δ$34S values range from -5.5{\textperthousand} to +5.6{\textperthousand} in Manus Basin samples, +2.4{\textperthousand} to +6.1{\textperthousand} in Lau Basin samples, and +3.7{\textperthousand} to +5.7{\textperthousand} in SEPR samples. Values of $δ$34S for cubic cubanite and H2S range from -1.4{\textperthousand} to +4.7{\textperthousand} in Guaymas Basin samples. Multiple sulfur isotope systematics in fluid-mineral pairs from the SEPR and Lau Basin show that crustal host rock and thermochemical reduction of seawater-derived dissolved sulfate (SO4) are the primary sources of sulfur in mid-ocean ridge and some back-arc systems. At PACMANUS and SuSu Knolls hydrothermal systems in the Eastern Manus Basin, a significant contribution of sulfur is derived from disproportionation of magmatic sulfur dioxide (SO2), while the remaining sulfur is derived from crustal host rocks and SO4 reduction. At the sedimented Guaymas Basin hydrothermal system, sulfur sources include crustal host rock, reduced seawater SO4, and biogenic sulfide. Vent fluid flow through fresher, less-mature sediment supplies an increased quantity of reactant organic compounds that may reduce 34S-enriched SO4, while fluid interaction with more highly-altered sediments results in H2S characterized by a small, but isotopically-significant input of 34S-depleted biogenic sulfides. Near-zero $Δ$33S values in all samples implicate the abiotic processes of SO4 reduction and leaching of host rock as the major contributors to sulfur content at a high temperature unsedimented mid-ocean ridge and at a back-arc system. $Δ$33S values indicate that SO2 disproportionation is an additional process that contributes sulfur to a different back-arc system and to acid spring-type hydrothermal fluid circulation. At the sedimented Guaymus Basin, near-zero $Δ$33S values are also observed, despite negative $δ$34S values that indicate inputs of biogenic pyrite for some samples. In contrast with previous studies reporting isotope disequilibrium between H2S and chalcopyrite, the $δ$34S values of chalcopyrite sampled from the inner 1{\textendash}2 mm of a chimney wall are within {\textpm}1{\textperthousand} of $δ$34S values for H2S in the paired vent fluid, suggesting equilibrium fluid-mineral sulfur isotope exchange at 300{\textendash}400 {\textdegree}C. Isotopic equilibrium between hydrothermal fluid H2S and precipitating chalcopyrite implies that sulfur isotopes in the chalcopyrite lining across a chimney wall may accurately record past hydrothermal activity.},
	keywords = {HOV Alvin (Human Occupied Vehicle), ROV Jason (Remotely Operated Vehicle)},
	doi = {10.1016/j.gca.2015.02.016},
	author = {McDermott, J M and Ono, S and Tivey, M K and Seewald, J S and Shanks, W C}
}
@article {Jamieson2013,
	title = {{Sulfide geochronology along the Endeavour Segment of the Juan de Fuca Ridge}},
	journal = {Geochemistry, Geophysics, Geosystems},
	volume = {14},
	number = {7},
	year = {2013},
	pages = {2084{\textendash}2099},
	abstract = {Forty-nine hydrothermal sulfide-sulfate rock samples from the Endeavour Segment of the Juan de Fuca Ridge, northeastern Pacific Ocean, were dated by measuring the decay of 226Ra (half-life of 1600 years) in hydrothermal barite to provide a history of hydrothermal venting at the site over the past 6000 years. This dating method is effective for samples ranging in age from \~{}200 to 20,000 years old and effectively bridges an age gap between shorter- and longer-lived U-series dating techniques for hydrothermal deposits. Results show that hydrothermal venting at the active High Rise, Sasquatch, and Main Endeavour fields began at least 850, 1450, and 2300 years ago, respectively. Barite ages of other inactive deposits on the axial valley floor are between \~{}1200 and \~{}2200 years old, indicating past widespread hydrothermal venting outside of the currently active vent fields. Samples from the half-graben on the eastern slope of the axial valley range in age from \~{}1700 to \~{}2925 years, and a single sample from outside the axial valley, near the westernmost valley fault scarp is \~{}5850 {\textpm} 205 years old. The spatial relationship between hydrothermal venting and normal faulting suggests a temporal relationship, with progressive younging of sulfide deposits from the edges of the axial valley toward the center of the rift. These relationships are consistent with the inward migration of normal faulting toward the center of the valley over time and a minimum age of onset of hydrothermal activity in this region of 5850 years.},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	doi = {10.1002/ggge.20133},
	author = {Jamieson, J W and Hannington, M D and Clague, D A and Kelley, D S and Delaney, J R and Holden, J F and Tivey, M K and Kimpe, L E}
}
@article {Ferrini2008,
	title = {{Variable morphologic expression of volcanic, tectonic, and hydrothermal processes at six hydrothermal vent fields in the Lau back-arc basin}},
	journal = {Geochemistry, Geophysics, Geosystems},
	volume = {9},
	year = {2008},
	pages = {Q07022},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {1525-2027},
	doi = {10.1029/2008GC002047},
	url = {http://dx.doi.org/10.1029/2008GC002047},
	author = {Ferrini, V L and Tivey, M K and Carbotte, S M and Martinez, F and Roman, C}
}
@article {Reysenbach2006,
	title = {{A ubiquitous thermoacidophilic archaeon from deep-sea hydrothermal vents}},
	journal = {Nature},
	volume = {442},
	number = {7101},
	year = {2006},
	pages = {444{\textendash}447},
	keywords = {HOV Alvin (Human Occupied Vehicle), ROV Jason (Remotely Operated Vehicle)},
	issn = {0028-0836},
	doi = {10.1038/nature04921},
	url = {http://dx.doi.org/10.1038/nature04921},
	author = {Reysenbach, A -L and Liu, Y T and Banta, A B and Beveridge, T J and Kirshtein, J D and Schouten, S and Tivey, M K and Von Damm, K L and Voytek, M A}
}
@article {Ding2005,
	title = {{The in situ pH of hydrothermal fluids at mid-ocean ridges}},
	journal = {Earth and Planetary Science Letters},
	volume = {237},
	number = {1-2},
	year = {2005},
	pages = {167{\textendash}174},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0012-821X},
	doi = {10.1016/j.epsl.2005.04.041},
	url = {http://dx.doi.org/10.1016/j.epsl.2005.04.041},
	author = {Ding, K and Seyfried, W E and Zhang, Z and Tivey, M K and Von Damm, K L and Bradley, A M}
}
@article {Tivey2004,
	title = {{The remarkable diversity of seafloor vents: Continuing explorations reveal an increasing variety of hydrothermal systems}},
	journal = {Oceanus},
	volume = {42},
	number = {2},
	year = {2004},
	pages = {60{\textendash}65},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0029-8182},
	author = {Tivey, M K}
}
@article {Sarrazin2002,
	title = {{Mosaic community dynamics on Juan de Fuca Ridge sulphide edifices: Substratum, temperature and implications for trophic structure}},
	journal = {Cahiers de Biologie Marine},
	volume = {43},
	number = {3-4},
	year = {2002},
	pages = {275{\textendash}279},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0007-9723},
	url = {http://cbm-online.sb-roscoff.fr/pdf/cb43-3-275-279.pdf},
	author = {Sarrazin, J and Levesque, C and Juniper, S K and Tivey, M K}
}
@article {Ding2001,
	title = {{In situ measurement of dissolved H (sub 2) and H (sub 2) S in high-temperature hydrothermal vent fluids at the Main Endeavour Field, Juan de Fuca Ridge}},
	journal = {Earth and Planetary Science Letters},
	volume = {186},
	number = {3-4},
	year = {2001},
	pages = {417{\textendash}425},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0012-821X},
	doi = {10.1016/S0012-821X(01)00257-6},
	url = {http://dx.doi.org/10.1016/S0012-821X(01)00257-6},
	author = {Ding, K and Seyfried, W E and Tivey, M K and Bradley, A M}
}
@article {Williams2001,
	title = {{Tidal currents at hydrothermal vents, Juan de Fuca Ridge}},
	journal = {Sea Technology},
	volume = {42},
	number = {6},
	year = {2001},
	pages = {62{\textendash}96},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0093-3651},
	author = {Williams, A J and Tivey, M K}
}
@article {Tivey1998,
	title = {{How to build a black smoker chimney}},
	journal = {Oceanus},
	volume = {41},
	number = {2},
	year = {1998},
	pages = {22{\textendash}26},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0029-8182},
	author = {Tivey, M K}
}
@article {Langmuir1997,
	title = {{Hydrothermal vents near a mantle hot spot: The Lucky Strike vent field at 37 degrees N on the Mid-Atlantic Ridge}},
	journal = {Earth and Planetary Science Letters},
	volume = {148},
	number = {1-2},
	year = {1997},
	pages = {69{\textendash}91},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0012-821X},
	doi = {10.1016/S0012-821X(97)00027-7},
	url = {http://dx.doi.org/10.1016/S0012-821X(97)00027-7},
	author = {Langmuir, C and Humphris, S E and Fornari, D J and Van Dover, C L and Von Damm, K L and Tivey, M K and Colodner, D and Charlou, J L and Desonie, D and Wilson, D and Fouquet, Y and Klinkhammer, G and Bougault, H}
}
@article {Tivey1995,
	title = {{Deducing patterns of fluid flow and mixing within the TAG hydrothermal mound using mineralogical and geochemical data}},
	journal = {Journal of Geophysical Research},
	volume = {100},
	number = {B7},
	year = {1995},
	pages = {12,512{\textendash}527,555},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0148-0227},
	doi = {10.1029/94GL02081},
	url = {http://dx.doi.org/10.1029/94GL02081},
	author = {Tivey, M K and Humphris, S E and Thompson, G and Hannington, M D and Rona, P A}
}
@article {Delaney1992,
	title = {{Geology of a vigorous hydrothermal system on the Endeavour Segment, Juan de Fuca Ridge}},
	journal = {Journal of Geophysical Research},
	volume = {97},
	year = {1992},
	pages = {19,619{\textendash}663,682},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0148-0227},
	doi = {10.1029/92JB00174},
	url = {http://dx.doi.org/10.1029/92JB00174},
	author = {Delaney, J R and Robigou, V and McDuff, R E and Tivey, M K}
}
@article {Tivey1991,
	title = {{Hydrothermal vent systems}},
	journal = {Oceanus},
	volume = {34},
	number = {4},
	year = {1991},
	pages = {68{\textendash}74},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0029-8182},
	author = {Tivey, M K}
}
@article {Tivey1986,
	title = {{Growth of large sulfide structures on the endeavour segment of the Juan de Fuca ridge}},
	journal = {Earth and Planetary Science Letters},
	volume = {77},
	number = {3-4},
	year = {1986},
	pages = {303{\textendash}317},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0012-821X},
	doi = {10.1016/0012-821X(86)90142-1},
	url = {http://dx.doi.org/10.1016/0012-821X(86)90142-1},
	author = {Tivey, M K and Delaney, J R}
}
