@article {Love2017,
	title = {{Rapid variations in fluid chemistry constrain hydrothermal phase separation at the Main Endeavour Field}},
	journal = {Geochemistry, Geophysics, Geosystems},
	year = {2017},
	abstract = {Previous work at the Main Endeavour Field (MEF) has shown that chloride concentration in high-temperature vent fluids has not exceeded 510 mmol/kg (94{\%} of seawater), which is consistent with brine condensation and loss at depth, followed by upward flow of a vapor phase toward the seafloor. Magmatic and seismic events have been shown to affect fluid temperature and composition and these effects help narrow the possibilities for sub-surface processes. However, chloride-temperature data alone are insufficient to determine details of phase separation in the upflow zone. Here we use variation in chloride and gas content in a set of fluid samples collected over several days from one sulfide chimney structure in the MEF to constrain processes of mixing and phase separation. The combination of gas (primarily magmatic CO2 and seawater-derived Ar) and chloride data, indicate that neither variation in the amount of brine lost, nor mixing of the vapor phase produced at depth with variable quantities of (i) brine or (ii) altered gas rich seawater that has not undergone phase separation, can explain the co-variation of gas and chloride content. The gas-chloride data require additional phase separation of the ascending vapor-like fluid. Mixing and gas partitioning calculations show that near-critical temperature and pressure conditions can produce the fluid compositions observed at Sully vent as a vapor-liquid conjugate pair or as vapor-liquid pair with some remixing, and that the gas partition coefficients implied agree with theoretically predicted values.},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	doi = {10.1002/2016GC006550},
	author = {Love, B and Lilley, M and Butterfield, D and Olson, E and Larson, B}
}
@article {Davis2004a,
	title = {{Hydrological response to a seafloor spreading episode on the Juan de Fuca ridge}},
	journal = {Nature},
	volume = {430},
	year = {2004},
	pages = {335{\textendash}338},
	issn = {0028-0836},
	doi = {10.1038/nature02755},
	url = {http://dx.doi.org/10.1038/nature02755},
	author = {Davis, E E and Becker, K and Dziak, R P and Cassidy, J F and Wang, K and Lilley, M}
}
@article {Fornari1998b,
	title = {{Time-series temperature measurements at high-temperature hydrothermal vents, East Pacific Rise 9 degrees 49{\textquoteright}-51{\textquoteright}N; evidence for monitoring a crustal cracking event}},
	journal = {Earth and Planetary Science Letters},
	volume = {160},
	number = {3-4},
	year = {1998},
	pages = {419{\textendash}431},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0012-821X},
	doi = {10.1016/S0012-821X(98)00101-0},
	url = {http://dx.doi.org/10.1016/S0012-821X(98)00101-0},
	author = {Fornari, D J and Shank, T M and Von Damm, K L and Gregg, T K P and Lilley, M and Levai, G and Bray, A and Haymon, R M and Perfit, M R and Lutz, R}
}
@article {Mottl1998,
	title = {{Warm springs discovered on 3.5 Ma oceanic crust, eastern flank of the Juan de Fuca Ridge}},
	journal = {Geology},
	volume = {26},
	number = {1},
	year = {1998},
	pages = {51{\textendash}54},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0091-7613},
	doi = {10.1130/0091-7613(1998)026<0051:WSDOMO>2.3.CO;2},
	url = {http://dx.doi.org/10.1130/0091-7613(1998)026{\%}3C0051:WSDOMO{\%}3E2.3.CO 2},
	author = {Mottl, M J and Wheat, G and Baker, E and Davis, E and Feely, R and Grehan, A and Kadko, D and Lilley, M and Massoth, G and Moyer, C and Sansone, F}
}
@article {Fornari1994,
	title = {{Temporal variation in the morphology and structure of the axial summit caldera and young volcanic flows, and relationship to hydrothermal venting on the East Pacific Rise crest 9 30-51{\textquoteright}N}},
	journal = {EOS, Transactions, American Geophysical Union},
	volume = {75},
	number = {Fall meet. suppl.},
	year = {1994},
	pages = {618},
	issn = {0096-3941},
	author = {Fornari, D J and Perfit, M R and Smith, M and Haymon, R M and Edwards, M H and Cochran, J R and Coakely, B and Von Damm, K L and Lilley, M}
}
@article {Haymon1993,
	title = {{Volcanic eruption of the mid-ocean ridge along the East Pacific Rise crest at 9 degrees 45-52{\textquoteright}N: Direct submersible observations of seafloor phenomena associated with an eruption event in April 1991}},
	journal = {Earth and Planetary Science Letters},
	volume = {119},
	number = {1-2},
	year = {1993},
	pages = {85{\textendash}101},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0012-821X},
	doi = {10.1016/0012-821X(93)90008-W},
	url = {http://dx.doi.org/10.1016/0012-821X(93)90008-W},
	author = {Haymon, R and Fornari, D J and Von Damm, K L and Lilley, M and Perfit, M and Edmond, J and Shanks, W and Lutz, R and Grebmeier, J M and Carbotte, S and Wright, D and McLaughlin, E and Smith, M and Beedle, N and Olson, E}
}
@article {Lutz1992,
	title = {{Biological and geological baseline along the BIOTRANSECT - East Pacific Rise crest 9 degrees 49.61{\textquoteright} - 50.35{\textquoteright}N: Short-term temporal variations after the 1991 eruption}},
	journal = {EOS, Transactions, American Geophysical Union},
	volume = {73},
	number = {43 (Fall Meeting Suppl.)},
	year = {1992},
	pages = {525},
	issn = {0096-3941},
	author = {Lutz, R A and Black, M B and Fornari, D J and Haymon, R M and Nelson, D and Perfit, M R and Shanks, W C and Lilley, M and Von Damm, K L}
}
@article {Haymon1992,
	title = {{Dramatic short-term changes observed during March {\textquoteright}92 to April {\textquoteright}91 eruption site on the East Pacific Rise crest 9 45-52{\textquoteright}N}},
	journal = {EOS, Transactions, American Geophysical Union},
	volume = {73},
	number = {43 (Fall Meeting Suppl.)},
	year = {1992},
	pages = {524},
	issn = {0096-3941},
	author = {Haymon, R and Fornari, D J and Lutz, R and Perfit, M and Macdonald, K and Von Damm, K L and Lilley, M and Shanks, W C and Nelson, D and Edwards, M and Kappus, M and Colodner, D and Wright, D and Scherier, D and Black, M and Edmonds, H and Olson, E and Geiselman, T}
}
@article {Haymon1991,
	title = {{Active eruption seen on East Pacific Rise}},
	journal = {EOS, Transactions, American Geophysical Union},
	volume = {72},
	number = {46},
	year = {1991},
	pages = {505,507},
	issn = {0096-3941},
	doi = {10.1029/90EO00362},
	url = {http://dx.doi.org/10.1029/90EO00362},
	author = {Haymon, R M and Carbotte, S and Wright, D and Beedle, N and Johnson, F and Fornari, D J and Von Damm, K L and Grebmeier, J and Lilley, M and McLaughlin, E and Olson, E and Edmond, J and Perfit, M R and Smith, M and Shanks, W C and Lutz, R and Seewald, J S and Reudelhuber, D}
}
@article {Haymon1991b,
	title = {{EPR crest erupts north of Leg 142 drillsite}},
	journal = {JOI/USSAC Newsletter},
	volume = {4},
	number = {3},
	year = {1991},
	pages = {4{\textendash}5},
	author = {Haymon, R and Fornari, D J and Von Damm, K L and Edmond, J and Lilley, M and Perfit, M and Shanks, W C and Grebmeier, J and Lutz, R and Carbotte, S and Wright, D and Smith, M and Laughlin, E and Beedle, N and Seewald, J S and Reudelhuber, D and Olson, E and Johnson, F}
}
