var aballea_etal98 = "Aballéa, M., J. Radford-Knoery, P. Appriou, H. Bogault, J. L. Charlou, J. P. Donval, J. Etoubleau, Y. Fouquet, C. R. German, and M. Miranda, Manganese distribution in the water column near the Azores Triple Junction along the Mid-Atlantic Ridge and in the Azores domain, Deep-Sea Res. I, 45, 1319–1338, 1998.";
var apha85 = "A.P.H.A. (American Public Health Assoc.), Standard Methods for the Examination of Water and Wastewater, 16th ed. A.P.H.A., A.W.W.A, and W.P.C.F. joint publication, Washington D.C., 1268 pp., 1985.";
var auzende_etal96 = "Auzende, J.-M., V. Ballu, R. Batiza, D. Bideau, J.-L. Charlou, M. H. Cormier, Y. Fouquet, P. Geistdoerfer, Y. Lagabrielle, J. Sinton, and P. Spadea, Recent tectonic, magmatic, and hydrothermal activity on the East Pacific Rise between 17°S and 19°S: Submersible observations, J. Geophys. Res., 101, 17,995–18,010, 1996.";
var bach_etal02 = "Bach, W., N. R. Banerjee, H. J. B. Dick, and E. T. Baker, Discovery of ancient and active hydrothermal systems along the ultra-slow spreading Southwest Indian Ridge, 10°–16°E, Geochem. Geophys. Geosyst., 3, 2001GC000279, 2002.";
var baker_hammond92 = "Baker, E. T., and S. R. Hammond, Hydrothermal venting and the apparent magmatic budget of the Juan de Fuca Ridge, J. Geophys. Res., 97, 3443–3456, 1992.";
var baker_massoth87 = "Baker, E. T., and G. J. Massoth, Characteristics of hydrothermal plumes from two vent fields on the Juan de Fuca Ridge, northeast Pacific Ocean, Earth Planet. Sci. Lett., 85, 59–73, 1987.";
var baker_milburn97 = "Baker, E. T., and H. B. Milburn, MAPR: A new instrument for hydrothermal plume mapping, RIDGE Events, 8, 23–25, 1997.";
var baker_urabe96 = "Baker, E. T., and T. Urabe, Extensive distribution of hydrothermal plumes along the superfast-spreading East Pacific Rise, 13°50'–18°40'S, J. Geophys. Res., 101, 8685–8695, 1996.";
var baker_etal85 = "Baker, E. T., J. W. Lavelle, and G. J. Massoth, Hydrothermal particle plumes over the southern Juan de Fuca Ridge, Nature, 316, 342–344, 1985.";
var baker_etal94 = "Baker, E. T., R. A. Feely, M. J. Mottl, F. J. Sansone, C. G. Wheat, J. A. Resing, and J. E. Lupton, Hydrothermal plumes along the East Pacific Rise, 8°40' to 11°50'N: Plume distribution and relationship to the apparent magmatic budget, Earth Planet. Sci. Lett., 128, 1–17, 1994.";
var baker_etal95 = "Baker, E. T., C. R. German, and H. Elderfield, Hydrothermal plumes over spreading-center axes: Global distributions and geological inferences, in Seafloor Hydrothermal Systems: Physical, Chemical, Biological, and Geological Interactions, Geophys. Monogr. Ser., 91, edited by S. Humphris, R. Zierenberg, L. S. Mullineaux, and R. Thomson, pp. 47–71, AGU, Washington D.C., 1995.";
var baker_etal96 = "Baker, E. T., Y. J. Chen, and J. Phipps Morgan, The relationship between near-axis hydrothermal cooling and the spreading rate of midocean ridges, Earth Planet. Sci. Lett., 142, 137–145, 1996.";
var baker_etal01b = "Baker, E. T., M.-H. Cormier, C. H. Langmuir, and K. Zavala, Hydrothermal plumes along segments of contrasting magmatic influence, 15°20'–18°30'N, East Pacific Rise: Influence of axial faulting, Geochem. Geophys. Geosyst., 2, doi:2000GC000165, 2001b.";
var baker_etal01a = "Baker, E. T., D. A. Tennant, R. A. Feely, G. T. Lebon, and S. L. Walker, Field and laboratory studies on the effect of particle size and composition on optical backscattering measurements in hydrothermal plumes, Deep-Sea Res. I, 48, 593–604, 2001a.";
var baker_etal02 = "Baker, E. T., R. N. Hey, J. E. Lupton, J. A. Resing, R. A. Feely, J. J. Gharib, G. J. Massoth, F. J. Sansone, M. Kleinrock, F. Martinez, D. F. Naar, C. Rodrigo, D. Bohnenstiehl, and D. Pardee, Hydrothermal venting along Earth’s fastest spreading center: East Pacific Rise, 27.5°–32.3°S, J. Geophys. Res., 107, doi:10.1029/2001JB000651, 2002.";
var baker_etal04 = "Baker, E. T., H. N. Edmonds, P. J. Michael, W. Bach. H. J. B. Dick, J. E. Snow, S. L. Walker, N. R. Banerjee, and C. H. Langmuir, Hydrothermal venting in magma deserts: The ultraslow-spreading Gakkel and South West Indian Ridges, Geochem., Geophys., Geosyst., 5(8), Q08002, doi:10.1029/2004GC000712, 2004.";
var barriga_etal98 = "Barriga, F. J. A. S., Y. Fouquet, A. Almeida, M. Biscoito, J.-L. Charlou, R. L. P. Costa, A. Dias, A. M. S. F. Marques, J. M. A. Miranda, K. Olu, F. Porteiro, M. G. P. S. Queiroz, Discovery of the Saldanha Hydrothermal Field on the FAMOUS Segment of the MAR (36°30'N), Eos Trans. AGU, 79(45), Fall Meet. Suppl., F67, 1998.";
var bird03 = "Bird, P., An updated digital model of plate boundaries, Geochem. Geophys. Geosyst., 4, 1027, doi:10.1029/2001GC000252, 2003.";
var bostrom_etal69 = "Boström, K., M. N. A. Peterson, O. Joensuu, and D. E. Fisher, Aluminum-poor ferromangoan sediments on active ocean ridges, J. Geophys. Res., 74, 3261–3270, 1969.";
var bougault_etal90 = "Bougault, H., J. L. Charlou, Y. Fouquet, and H. D. Needham, Activité hydrothermale et structure axiale des dorsales Est-Pacifique et médio-Atlantique, Oceanol. Acta, vol. special 10, 199–207, 1990."
var bougault_etal98 = "Bougault, H., M. Aballéa, J. Radford-Knoery, J. L. Charlou, P. Jean Baptiste, P. Appriou, H. D. Needham, C. German, and M. Miranda, FAMOUS and AMAR segments on the Mid-Atlantic Ridge: ubiquitous hydrothermal Mn, CH4, delta3He signals along the rift valley walls and rift offsets, Earth Planet. Sci. Lett., 161, 1–17, 1998.";
var cannat_etal99 = "Cannat, M., A. Briais, C. Deplus, J. Escartín, J. Georgen, J. Lin, S. Mercouriev, C. Meyzen, M. Muller, G. Pouliquen, A. Rabain, and P. da Silva, Mid-Atlantic Ridge-Azores hotspot interactions: along-axis migration of a hotspot-derived event of enhanced magmatism 10 to 3 Ma ago, Earth Planet. Sci. Lett., 173, 257–269, 1999.";
var cannat_etal03 = "Cannat, M., C. Rommevaux-Jestin, and H. Fujimoto, Melt supply variations to a magma-poor ultra-slow spreading ridge (Southwest Indian Ridge 61° to 69°E), Geochem. Geophys. Geosyst., 4, 9104, doi:10.1029/2002GC000480, 2003.";
var cannat_etal04 = "Cannat, M., J. Cann, and J. Maclennan, Some hard rock constraints on the supply of heat to mid-ocean ridges, in Mid-ocean ridges: Hydrothermal interactions between the lithosphere and oceans, Geophys. Monogr. Ser., vol. 148, edited by C. German, J. Lin, and L. Parson, AGU, Washington, D.C., 111-150, 2004.";
var charlou_donval93 = "Charlou, J. L., and J.-P. Donval, Hydrothermal methane venting between 12°N and 26°N along the Mid-Atlantic Ridge, J. Geophys. Res., 98, 9625–9642, 1993.";
var charlou_etal91 = "Charlou, J. L., H. Bougault, P. Appriou, T. Nelsen, and P. Rona, Different TDM/CH4 hydrothermal plume signatures: TAG site at 26°N and serpentinized ultrabasic daipir at 15°05'N on the Mid-Atlantic Ridge, Geochim. Cosmochim. Acta, 55, 3209–3222, 1991.";
var charlou_etal02 = "Charlou, J. L., J. P. Donval, Y. Fouquet, P. Jean-Baptiste, and N. Holm, Geochemistry of high H2 and CH4 vent fluids issuing from ultramafic rocks at the Rainbow hydrothermal field (36°14'N, MAR), Chem. Geol., 191, 345–359, 2002.";
var chen03 = "Chen Y. J., Influence of the Iceland mantle plume on crustal accretion at the inflated Reykjanes Ridge: Magma lens and low hydrothermal activity?, J. Geophys. Res., 108(B11), 2524, doi:10.1029/2001JB000816, 2003.";
var chin_etal98 = "Chin, C. S., G. P. Klinkhammer, and C. Wilson, Detection of hydrothermal plumes on the Northern Mid-Atlantic Ridge: results from optical measurements, Earth Planet. Sci. Lett., 162, 1–13, 1998.";
var corliss_etal79 = "Corliss, J. B., J. Dymond, L. I. Gordon, J. M. Edmond, R. P. von Herzen, R. D. Ballard, K. Green, D. Williams, A. Bainbridge, K. Crane, and T. H. van Andel, Submarine thermal springs on the Galápagos Rift, Science, 203, 1073–1083, 1979.";
var craig_lupton81 = "Craig, H., and J. E. Lupton, Helium-3 and mantle volatiles in the ocean and the oceanic crust, in The Sea, edited by C. Emiliani, New York, Wiley, 7, 391–428, 1981.";
var crane_etal85 = "Crane, K., F.A. Aikman III, R. Embley, S. Hammond, A. Malahoff, and J. Lupton, The distribution of geothermal fields on the Juan de Fuca Ridge, J. Geophys. Res., 90, 727–744, 1985.";
var demets_etal90 = "DeMets, C., R. G. Gordon, D. F. Argus, and S. Stein, Current plate motions, Geophys. J. Int., 101, 425–478, 1990.";
var deronde_etal03 = "de Ronde, C. E. J., G. J. Massoth, E. T. Baker, and J. E. Lupton, Submarine hydrothermal venting related to volcanic arcs, Giggenbach Memorial Volume, in Volcanic, geothermal and ore-forming fluids: Rulers and witnesses of processes within the Earth, edited by S. F. Simmons and I. Graham, Soc. of Econ. Geolog., 10, 91–110, 2003.";
var dick_etal03 = "Dick, H. J. B., J. Lin, and H. Schouten, An ultraslow-spreading class of ocean ridge, Nature, 426, 405–412, 2003.";
var douville_etal02 = "Douville, E., J. L. Charlou, E. H. Oelkers, P. Bienvenu, C. F. J. Colon, J. P. Donval, Y. Fouquet, D. Prieur, and P. Appriou, The rainbow vent fluids (36°14 N, MAR): the influence of ultramafic rocks and phase separation on trace metal content in Mid-Atlantic Ridge hydrothermal fluids, Chem. Geol., 184, 37–48, 2002.";
var edmonds_etal03 = "Edmonds, H. N., P. J. Michael, E. T. Baker, D. P. Connelly, J. E. Snow, C. H. Langmuir, H. J. B. Dick, R. Mühe, C. R. German, and D. W. Graham, Discovery of abundant hydrothermal venting on the ultraslow-spreading Gakkel Ridge, Arctic Ocean, Nature, 421, 252–256, 2003.";
var embley_etal98 = "Embley, R. W., J. E. Lupton, G. Massoth, T. Urabe, V. Tunnicliffe, D. A. Butterfield, T. Shibata, O. Okano, M. Kinoshita, and K. Fujioka, Geological, chemical, and biological evidence for recent volcanism at 17.5°S: East Pacific Rise, Earth Planet. Sci. Lett., 163, 131–147, 1998.";
var embley_etal04 = "Embley, R. W., E. T. Baker, W. W. Chadwick, Jr., J. E. Lupton, J. A. Resing, G. J. Massoth, and K. Nakamura, Explorations of Mariana Arc volcanoes reveal new hydrothermal systems, Eos Trans. AGU, 85(4), 37, 40, 2004.";
var escartin_etal01 = "Escartín, J., M. Cannat, G. Pouliquen, and A. Rabain, Crustal thickness of V-shaped ridges south of the Azores: Interaction of the Mid-Atlantic Ridge (36°–39°N) and the Azores hot spot, J. Geophys. Res., 106, 21,719–21,735, 2001.";
var farley_etal95 = "Farley, K. A., E. Maier-Reimer, P. Schlosser, and W. S. Broecker, Constraints on mantle 3He fluxes and deep-sea circulation from an oceanic general circulation model, J. Geophys. Res., 100, 3829–3839, 1995.";
var fisher98 = "Fisher, A. T., Permeability within basaltic oceanic crust, Rev. Geophys., 36, 143–182, 1998.";
var fouquet_etal95 = "Fouquet, Y., H. Ondréas, J.-L. Charlou, J.-P. Donval, J. Radford-Knoery, I. Costa, N. Lourenço, and M. K. Tivey, Atlantic lava lakes and hot vents, Nature, 377, 201, 1995.";
var fouquet_etal97 = "Fouquet, Y., J. L. Charlou, H. Ondréas, J. Radford-Knoery, J. P. Donval, E. Douville, R. Apprioual, P. Cambon, H. Pell, J. Y. Landur, and A. Normand, Discovery and first submersible investigations on the Rainbow hydrothermal field on the MAR (36°14'N), Eos Trans. AGU, 78(46), Fall Meet. Suppl., F832, 1997.";
var fouquet_etal02 = "Fouquet, Y., J. L. Charlou, and F. Barriga, Modern seafloor hydrothermal deposits hosted in ultramafic rocks, Geol. Soc. Am. Abstracts with Programs, 34(6), A 194–7, 2002.";
var francheteau_ballard83 = "Francheteau, J., and R. Ballard, The East Pacific Rise near 21°N, 13°N and 20°S: inferences for along-strike variability of axial processes of the Mid-Ocean Ridge, Earth Planet. Sci. Lett., 64, 93–116, 1983.";
var geosecs87 = "Geosecs Atlantic, Pacific, and Indian Ocean Expeditions, 7, Shorebased Data and Graphics, National Science Foundation, U.S. Govt. Print. Office, Washington, D.C., 1987.";
var german03 = "German, C. R., Hydrothermal activity on the eastern SWIR (50°-70°E): Evidence from core-top geochemistry, 1887 and 1998, Geochem. Geophys. Geosyst., 4(7), 9102 doi:10.1029/2003GC000522, 2003.";
var german_parson98 = "German, C. R., and L. M. Parson, Distributions of hydrothermal activity along the Mid-Atlantic Ridge: Interplay of magmatic and tectonic controls, Earth. Planet. Sci. Lett., 160, 327–341, 1998.";
var german_etal94 = "German, C. R., J. Briem, C. Chin, M. Danielsen, S. Holland, R. James, A. Jónsdóttir, E. Ludford, C. Moser, J. Olafsson, M. R. Palmer, and M. D. Rudnicki, Hydrothermal activity on the Reykjanes Ridge: The Steinahóll Vent-field at 63°06'N, Earth Planet. Sci. Lett., 121, 647–654, 1994.";
var german_etal95 = "German, C. R., E. T. Baker, and G. Klinkhammer, The regional setting of hydrothermal activity, in Hydrothermal Vents and Processes, edited by L. M. Parson, C. L. Walker, and D. R. Dixon, Geol. Soc. Spec. Pub. No. 87, 3–15, 1995.";
var german_etal96a = "German, C. R., L. M. Parson, and HEAT Scientific Team, Hydrothermal exploration at the Azores Triple-Junction: Tectonic control of venting at slow-spreading ridges?, Earth Planet. Sci. Lett., 138, 93–104, 1996a.";
var german_etal96b = "German C. R., G. P. Klinkhammer, and M. D. Rudnicki, The Rainbow hydrothermal plume, 36°15'N, MAR, Geophys. Res. Lett., 23, 2979–2982, 1996b.";
var german_etal96c = "German, C. R., L. M. Parson, B. J. Murton, and H. D. Needham, Hydrothermal activity and ridge segmentation on the Mid-Atlantic Ridge: A tale of two hot-spots? in Ridge Segmentation, edited by C. McLeod, C. L. Walker and P. Tyler, Geol. Soc. Spec. Pub. 118, 169–184, 1996c.";
var german_etal98a = "German, C. R., E. T. Baker, C. Mevel, K. Tamaki, and the FUJI Scientific Team, Hydrothermal activity along the southwest Indian Ridge, Nature, 395, 490–493, 1998a.";
var german_etal98b = "German, C. R., K. J. Richards, M. D. Rudnicki, M. M. Lam, J. L. Charlou, and FLAME Scientific Party, Topographic control of a dispersing hydrothermal plume, Earth Planet. Sci. Lett., 156, 267–273, 1998b.";
var german_etal99 = "German, C. R., M. D. Rudnicki, and G. P. Klinkhammer, A segment-scale survey of the Broken Spur hydrothermal plume, Deep-Sea Res. I, 46, 701–714, 1999.";
var german_etal02 = "German, C. R., D. P. Connelly, A. J. Evans, L. M. Parson, Hydrothermal activity on the southern Mid-Atlantic Ridge, Eos Trans. AGU, 83(47), Fall Meet. Suppl., Abstract V61B–1361, 2002.";
var gracia_etal00 = "Gràcia, E., J. L. Charlou, J. Radford-Knoery, and L. M. Parson, Non-transform offsets along the Mid-Atlantic Ridge south of the Azores (38°N–34°N): ultramafic exposures and hosting of hydrothermal vents, Earth Planet. Sci. Lett., 177, 89–103, 2000.";
var grindlay_etal98 = "Grindlay, N. R., J. A. Madsen, C. Rommevaux-Jestin, and J. Sclater, A different pattern of ridge segmentation and mantle Bouguer gravity anomalies along the ultra-slow spreading Southwest Indian Ridge (15°30'E to 25°E), Earth Planet. Sci. Lett., 161, 243–253, 1998.";
var haymon96 = "Haymon, R.M., The response of ridge-crest hydrothermal systems to segmented, episodic magma supply, in Tectonic, Magmatic, Hydrothermal, and Biological Segmentation of Mid-Ocean Ridges, edited by C. J. MacLeod, P. A. Tyler, and C. L. Walker, Geol. Soc. Spec. Pub. 118, 157–168, 1996.";
var haymon_etal91 = "Haymon, R. M., D. J. Fornari, M. H. Edwards, S. Carbotte, D. Wright, and K. C. Macdonald, Hydrothermal vent distribution along the East Pacific Rise crest (9°09'–54'N) and its relationship to magmatic and tectonic processes on fast-spreading mid-ocean ridges, Earth Planet. Sci. Lett., 104, 513–534, 1991.";
var haymon_etal97 = "Haymon, R. M. et al., Distribution of fine-scale hydrothermal, volcanic, and tectonic features along the EPR crest, 17°15'–18°30'S: Results of near-bottom acoustic and optical surveys, Eos Trans. AGU, 78(46), Fall Meet. Suppl., Abstract F705, 1997.";
var holm_charlou01 = "Holm, N. G., and J.-L. Charlou, Initial indications of abiotic formation of hydrocarbons in the Rainbow ultramafic hydrothermal system, Mid-Atlantic, Earth Planet. Sci. Lett., 191, 1–8, 2001.";
var ishibashi_urabe95 = "Ishibashi, J., and T. Urabe, Hydrothermal activity related to arc-backarc magmatism in the western Pacific, in Backarc Basins: Tectonics and Magmatism, edited by B. Taylor, pp. 451–495, Plenum Press, New York, 1995.";
var ito_lin95 = "Ito, G., and J. Lin, Oceanic spreading center-hotspot interactions: Constraints from along-isochron bathymetric and gravity anomalies, Geology, 23, 657–660, 1995.";
var jamous_etal92 = "Jamous, D., L. Mémery, C. Andrié, P. Jean-Baptiste, and L. Merlivat, The distribution of helium 3 in the deep western and southern Indian Ocean, J. Geophys. Res., 97, 2243–2250, 1992.";
var jokat_etal03 = "Jokat, W., O. Ritzmann, M. C. Schmidt-Aursch, S. Drachev, S. Gauger, and J. Snow, Geophysical evidence for reduced melt production on the Arctic ultraslow Gakkel mid-ocean ridge, Nature, 423, 962–965, 2003.";
var kadko_etal95 = "Kadko, D., J. Baross, and J. Alt, The magnitude and global implications of hydrothermal flux, in Seafloor Hydrothermal Systems: Physical, Chemical, Biological, and Geological Interactions, Geophys. Monogr. Ser., 91, edited by S. Humphris, R. Zierenberg, L. S. Mullineaux, and R. Thomson, pp. 446–466, AGU, Washington D.C., 1995.";
var kelemen03 = "Kelemen, P., Igneous crystallization beginning at 20 km beneath the Mid-Atlantic Ridge, 14°–16°N, Eos Trans. AGU, 84(46), Fall Meet. Suppl., Abstract V22H-03, 2003.";
var kelley_etal01 = "Kelley, D. S., J. A. Karson, D. K. Blackman, G. Fruh-Green, J. Gee, D. A. Butterfield, M. D. Lilley, E. J. Olson, M. O. Schrenk, K. K. Roe, G. Lebon, P. Rizzigno, J. Cann, B. John, D. K. Ross, S. Hurst, and G. Sasagawa, An off-axis hydrothermal vent field near the Mid-Atlantic Ridge at 30°N, Nature, 412, 145–149, 2001.";
var klinkhammer_etal85 = "Klinkhammer, G., P. Rona, M. Greaves, and H. Elderfield, Hydrothermal manganese plumes in the mid-Atlantic Ridge rift valley, Nature, 314, 727–731, 1985.";
var klinkhammer_etal86 = "Klinkhammer, G., H. Elderfield, M. Greaves, P. Rona, and T. Nelsen, Manganese geochemistry near high-temperature vents in the Mid-Atlantic rift valley, Earth Planet. Sci. Lett., 80, 230–240, 1986.";
var krasnov_etal95 = "Krasnov, S. G., G. A. Cherkashev, T. V. Stepanova, B. N. Batuyev, A. G. Krotov, B. V. Malin, M. N. Maslov, V. F. Markov, I. M. Poroshina, M. S. Samovarov, A. M. Ashadze, and I. K. Eromlayev, Detailed geographical studies of hydrothermal fields in the North Atlantic, in Hydrothermal Vents and Processes, edited by L. M. Parson, C. L. Walker, and D. R. Dixon, Geol. Soc. Spec. Pub. 87, 43–64, 1995.";
var langmuir_etal93 = "Langmuir, C. H., D. Fornari, D. Colodner, J.-L. Charlou, I. Costa, D. Desbruyeres, D. Desonie, T. Emerson, A. Fiala-Medioni, Y. Fouquet, S. Humphris, L. Saldanha, R. Sours-Page, M. Thatcher, M. Tivey, C. Van Dover, K. Von Damm, K. Weiss, and C. Wilson, Geological setting and characteristics of the Lucky Strike Vent Field at 37°17'N on the Mid-Atlantic Ridge, Eos, Trans. AGU, 74 (Fall Supplement), 99, 1993.";
var lowell_rona02 = "Lowell, R. P., and P. A. Rona, Seafloor hydrothermal systems driven by the serpentinization of peridotite, Geophys. Res. Lett., 29, doi:10.1029/2001GL014411, 2002.";
var lupton95 = "Lupton, J. E., Hydrothermal plumes: Near and far field, in Seafloor Hydrothermal Systems: Physical, Chemical, Biological, and Geological Interactions, Geophys. Monogr. Ser., 91, edited by S. Humphris, R. Zierenberg, L. S. Mullineaux, and R. Thomson, pp. 317–346, AGU, Washington D.C., 1995.";
var lupton98 = "Lupton, J. E., Hydrothermal helium plumes in the Pacific Ocean, J. Geophys. Res., 103, 15,853–15,868, 1998.";
var lupton_etal97 = "Lupton, J. E., J.-I. Ishibashi, and D. A. Butterfield, Gas chemistry of hydrothermal fluids along the southern East Pacific Rise, 13.5°–18.5°S, Eos Trans. AGU, 78(46), Fall Meet. Suppl., F706, 1997.";
var lupton_etal99 = "Lupton, J. E., D. Butterfield, M. Lilley, J.-I. Ishibashi, D. Hey, and L. Evans, Gas chemistry of hydrothermal fluids along the East Pacific Rise, 5°S to 32°S, Eos Trans. AGU, 80(46), Fall Meet. Suppl., F1099, 1999.";
var michael_etal03 = "Michael, P. J., C. H. Langmuir, H. J. B. Dick, J. E. Snow, S. L. Goldstein, D. W. Graham, K. Lehnert, G. Kurras, W. Jokat, R. Mühe, and H. N. Edmonds, Magmatic and amagmatic seafloor generation at the ultraslow-spreading Gakkel Ridge, Arctic Ocean, Nature, 423, 956–961, 2003.";
var muller_etal99 = "Muller, M. R., T. A. Minshull, and R. S. White, Segmentation and melt supply at the Southwest Indian Ridge, Geology, 27, 867–870, 1999.";
var munch_etal01 = "Münch, U., C. Lalou, P. Halbach, and H. Fujimoto, Relict hydrothermal events along the super-slow Southwest Indian spreading ridge near 63°56'E—mineralogy, chemistry and chronology of sulfide samples, Chem. Geol., 177, 341–349, 2001.";
var murton_etal94 = "Murton, B. J., G. Klinkhammer, K. Becker, A. Briais, D. Edge, N. Hayward, N. Millard, I. Mitchell, I. Rouse, M. Rudnicki, K. Sayanagi, H. Sloan, and L. Parson, Direct evidence for the distribution and occurrence of hydrothermal activity between 27°N–30°N on the Mid-Atlantic Ridge, Earth Planet. Sci. Lett., 125, 119–128, 1994.";
var nelsen_etal87 = "Nelsen, T. A., G. P. Klinkhammer, J. H. Trefrey, and R. P. Trocine, Real-time observations of dispersed hydrothermal plumes using nephelometry: examples from the Mid-Atlantic Ridge, Earth. Planet. Sci. Lett., 81, 245–252, 1986/87.";
var odp86 = "ODP (Ocean Drilling Program) Leg 106 Scientific Party, Drilling the Snake Pit hydrothermal sulfide deposit on the Mid-Atlantic Ridge, Lat. 23°N, Geology, 14, 1004–1007, 1986.";
var parson_etal93 = "Parson, L. M., B. J. Murton, R. C. Searle, D. Booth, J. Evans, P. Field, J. Keeton, A. Laughton, E. McAllister, N. Millard, L. Redbourne, I. Rouse, A. Shor, D. Smith, S. Spencer, C. Summerhayes, and C. Walker, En-echelon axial volcanic ridges at the Reykjanes Ridge—A life-cycle of volcanism and tectonics, Earth Planet. Sci. Lett., 117, 73–87, 1993.";
var parson_etal00 = "Parson L., E. Gràcia, D. Coller, C. German, and D. Needham, Second-order segmentation; the relationship between volcanism and tectonism at the MAR, 38°N–35°40'N, Earth Planet. Sci. Lett., 178, 231–251, 2000.";
var phipps_chen93 = "Phipps Morgan, J., and Y. J. Chen, The genesis of oceanic crust: Magma injection, hydrothermal circulation, and crustal flow, J. Geophys. Res., 98, 6283–6297, 1993.";
var reid_jackson81 = "Reid, I., and H. R. Jackson, Oceanic spreading rate and crustal thickness, Mar. Geophys. Res., 5, 165–172, 1981.";
var renard_etal85 = "Renard, V., R. Hekinian, J. Francheteau, R. D. Ballard, and H. Backer, Submersible observations at the axis of the ultra-fast-spreading East Pacific Rise (17°30' to 21°30'S), Earth Planet. Sci. Lett., 75, 339–353, 1985.";
var richards_etal88 = "Richards, M. A., B. H. Hager, and N. H. Sleep, Dynamically supported geoid highs over hotspots: Observation and theory, J. Geophys. Res., 93, 7690–7708, 1988.";
var rona_etal86 = "Rona, P. A., G. Klinkhammer, T. A. Nelsen, J. H. Trefry, and H. Elderfield, Black smokers, massive sulfides and vent biota at the mid-Atlantic Ridge, Nature, 321, 33–37, 1986.";
var ruth_etal00 = "Rüth, C., R. Well, and W. Roether, Primordial 3He in South Atlantic deep waters from sources on the Mid-Atlantic Ridge, Deep-Sea Res. I, 47, 1059–1075, 2000.";
var sauter_etal02 = "Sauter, D., L. Parson, V. Mendel, C. Rommevaux-Jestin, O. Gomez, A. Briais, C. Mevel, and K. Tamaki, TOBI sidescan sonar imagery of the very slow-spreading Southwest Indian Ridge: evidence for along-axis magma distribution, Earth Planet. Sci. Lett., 202, 511–512, 2002.";
var scheirer_etal98 = "Scheirer, D. S., E. T. Baker, and K. T. M. Johnson, Detection of hydrothermal plumes along the Southeast Indian Ridge near the Amsterdam-St. Paul hotspot, Geophys. Res. Lett., 25, 97–100, 1998.";
var scheirer_etal00 = "Scheirer, D. S., D. W. Forsyth, J. A. Conder, M. A. Eberle, S.-H. Hung, K. T. M. Johnson, and D. W. Graham, Anomalous seafloor spreading of the Southeast Indian Ridge near the Amsterdam-St. Paul Plateau, J. Geophys. Res., 105, 8243–8262, 2000.";
var schroeder_etal02 = "Schroeder, T., B. John, and B. R. Frost, Geologic implications of seawater circulation through peridotite exposed at slow-spreading ridges, Geology, 30, 367–370, 2002.";
var sinha_etal97 = "Sinha, M. C., D. A. Navin, L. M. MacGregor, S. Constable, C. Peirce, A. White, G. Heinson, and M. A. Inglis, Evidence for accumulated melt beneath the slow-spreading Mid-Atlantic ridge, Phil. Trans. R. Soc. Lond. A, 355, 233–253, 1997.";
var smallwood_white98 = "Smallwood, J. R., and R. S. White, Crustal accretion at the Reykjanes Ridge, 61°–62°N, J. Geophys. Res., 103, 5185–5201, 1998.";
var thurnherr_etal02 = "Thurnherr, A. M., K. J. Richards, C. R. German, G. F. Lane-Serff, and K. G. Speer, Flow and mixing in the rift valley of the Mid-Atlantic Ridge, J. Phys. Oceanog., 32, 1763–1778, 2002.";
var urabe_etal95 = "Urabe, T., E. T. Baker, J. Ishibashi, R. A. Feely, K. Marumo, G. J. Massoth, A. Maruyama, K. Shitashima, K. Okamura, J. E. Lupton, A. Sonada, T. Yamazaki, M. Aoki, J. Gendron, R. Green, Y. Kaiho, K. Kisimoto, G. Lebon, T. Matsumoto, K. Nakamura, A. Nishizawa, O. Okano, G. Paradis, K. Roe, T. Shibata, D. Tennant, T. Vance, S. L. Walker, T. Yabuki, and N. Ytow, The effect of magmatic activity on hydrothermal venting along the superfast-spreading East Pacific Rise, Science, 269, 1092–1095, 1995.";
var vondamm_etal99 = "Von Damm, K. L., M. K. Brockington, A. M. Bray, K. M. O’Grady, and SouEPR Science Party, SouEOR 98: Extraordinary phase separation and segregation in vent fluids from the Southern East Pacific Rise, Eos Trans. AGU, 80(46), Fall Meet. Suppl., F1098–F1099, 1999.";
var white_etal92 = "White, R. S., D. McKenzie, and R. K. O’Nions, Oceanic crustal thickness from seismic measurements and rare earth element inversions, J. Geophys. Res., 97, 19,683–19,715, 1992.";
var white_etal01 = "White, R. S., T. A. Minshull, M. J. Bickle, and C. J. Robinson, Melt generation at very slow-spreading oceanic ridges: Constraints from geochemical and geophysical data, J. Petrology, 42, 1171–1196, 2001.";
var wright_etal02 = "Wright, D. J., R. M. Haymon, S. M. White, and K. Macdonald, Crustal fissuring on the crest of the southern East Pacific Rise at 17º15'–40'S, J. Geophys. Res., 107, doi:10.1029/2001JB000544, 2002.";