Intense CH4 plumes generated by serpentinization of ultramafic rocks at the intersection of the 15°20'N fracture zone and the Mid-Atlantic Ridge

Geochimica et Cosmochimica Acta

Volumn 62, Issue 13, 1998, Pages 2323-2333

  Charlou, Jean Luc ^a   Fouquet, Yves ^a   Bougault, Henri ^a   Donval, Jean P ^a   Etoubleau, Joel ^a   Jean Baptiste, Philippe ^b   Dapoigny, Arnaud ^b   Appriou, Pierre ^c   Rona, Peter A ^d  

^a IFREMER   (France)

^b CEA SACLAY   (France)

^c UNIVERSITÉ DE BRETAGNE OCCIDENTALE   (France)

^d RUTGERS UNIVERSITY   (United States)

Author keywords

Atlantic ocean; Methane; Mid atlantic ridge; Serpentinization; Ultramafic rocks

Indexed keywords

METHANE; SERPENTINIZATION; ULTRAMAFIC ROCK;

ATLANTIC OCEAN; MID-ATLANTIC RIDGE;

EID: 0032448403     PISSN: 00167037     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0016-7037(98)00138-0     Document Type: Article

References (75)

1. Abrajano T.A., Sturchio N.C., Bohlke J.K., Lyon G.L., Poreda R.J., Stevens C.M. Methane-hydrogen gas seeps, Zambales Ophiolite, Philippines Deep or shallow origin? Chem. Geol. 71:1988;211-222.
2. Apps J. A. (1985) Methane formation during hydrolysis by mafic rocks. Lawrence Berkeley Lab. Annu. Rept., 13-17.
3. 2 during serpentinization of olivine at 300°C and 500 bar. Geology 24, 4, 351-354.
4. Bideau D., et al. Submersible investigation of highly contrasted magmatic Activities recorded on two segments of the Mid-Atlantic Ridge near 34°52′N and 33°55′N. InterRidge News. 5:1996;9-14.
5. Bogdanov Y., et al. A study of the hydrothermal field at 14°45′N on the Mid-Atlantic Ridge using the MIR submersibles. Bridge Newsl. 9:1995;9-13.
6. Bougault H., Charlou J.L., Fouquet Y., Needham H.D. Activité hydrothermale et structure axiale des dorsales Est-Pacifique et médio-Atlantique. Oceanol. Acta. 10:1990;199-207.
7. Bougault H., et al. Campagne RIDELENTE Structure de la dorsale Atlantique - Hétérogénéité du manteau et hydrothermalisme . Oceanol. Acta. 10:1990;366-381.
8. 4 output . J. Geophys. Res. 98:1993;9643-9651.
9. Cannat M., Casey J.F. An ultramafic lift at the Mid-Atlantic Ridge Successive stages of magmatism in serpentinized peridotites from the 15°N region . Vissers R., Nicolas A. Mantle and Lower Crust Exposed in Oceanic Ridges and in Ophiolites. 1995;5-34 Kluwer Academic.
10. Cannat M., Bideau D., Bougault H. Serpentinized peridotites and gabbros in the Mid- Atlantic Ridge axial valley at 15°37′N and 16°52′N. Earth Planet. Sci. Lett. 109:1992;87-106.
11. Cannat M., et al. Thin crust, ultramafic exposures, and rugged faulting patterns at the Mid- Atlantic Ridge (22-24 N). Geology. 23:1995;49-52.
12. Cannat M., et al. Ultramafic and gabbroic exposures at the Mid-Atlantic Ridge Geological mapping in the 15°N region . Tectonophysics. 279:1997;193-213.
13. Casey J.F., et al. Crustal architecture and mechanisms of ultramafic and gabbroic exposure along rift valley walls of the Mid-Atlantic Ridge north and south of the Fifteen Twenty transform. Eos Trans. 73:1992;537. (abstr.).
14. Charlou J.L., Donval J.P. Hydrothermal venting between 12°N and 26°N along the Mid-Atlantic Ridge. J. Geophys. Res. 98:1993;9625-9642.
15. 4 between 12° and 15°N over the Mid-Atlantic Ridge. Deep Sea Res. 35:1988;121-131.
16. Charlou J.L., Bougault H., Appriou P., Jean-Baptiste P., Etoubleau J., Birolleau A. Water colum anomalies associated with hydrothermal activity between 11°40′N and 13°N on the East Pacific Rise: Discrepancies between tracers. Deep Sea Res. 38:1991;569-596.
17. 4 hydrothermal plume signatures TAG site at 26°N and serpentinized ultrabasic diapir at 15°05′N on the Mid-Atlantic Ridge . Geochim. Cosmochim. Acta. 55:1991;3209-3222.
18. Charlou J.L., et al. Mineral and gas geochemistry of hydrothermal fluids on an ultrafast spreading ridge East Pacific Rise, 17-19 S (Naudur cruise, 1993)-Phase separation processes controlled by volcanic and tectonic activity . J. Geophys. Res. 101:1996;15,899-15,919.
19. Charlou J.L., Donval J.P., Jean-Baptiste P., Dapoigny A., Rona P.A. Gases and helium isotopes in high temperarure solutions sampled before and after ODP Leg 158 drilling at TAG hydrothermal field (26°N, MAR). Geophys. Res. Lett. 23:1996;3491-3494.
20. Charlou J.L., et al. Methane degassing, hydrothermal activity and serpentinization between the Fifteen Twenty fracture zone area and the Azores Triple Junction area (Mid-Atlantic Ridge). J. Conf. Abstr. 1:1996;771-772.
21. Charlou J. L., et al. (1997) High methane flux between 15°N and the Azores Triple Junction, Mid-Atlantic Ridge. Hydrothermal and serpentinization processes. Eos Trans. 78, 46, F831 (abstr.).
22. Coveney R.M., Goebel E.D., Zeller E.J., Dreschoff G.A.M., Angino E.E. Serpentinization and the origin of hydrogen gas in Kansas. Amer. Assoc. Petrol. Geol. Bull. 71:1987;39-48.
23. 3He and methane in Sakurajima Caldera, Kagoshima Bay, Japan. Earth Planet. Sci. Lett. 123:1994;221-226.
24. 4 content in hydrothermal fluids from Rainbow site newly sampled at 36°14′N on the Amar segment, Mid-Atlantic Ridge (diving FLORES cruise, July 1997). Comparison with other MAR sites. Eos Trans. 78:1997;F832. (abstr.).
25. Evans W.C. A gold mine of methane. Nature. 381:1996;114-115.
26. Evans W.C., White L.D., Rapp J.B. Geochemistry of some gases in hydrothermal fluids from the southern Juan de Fuca Ridge. J. Geophys. Res. 93:1988;15,305-15,313.
27. Fornari D. and Humphris S. (1996) Mid-cruise report for Lucky Strike field Program with ROV Jason, ARGO II and 120 kHz Sonar - Multidisciplinary investigations of hydrothermal vents on Lucky Strike seamount and the tectonic and volcanic structure of the Mid-Atlantic Ridge rift valley between 37°10′N and 37°25′N. Cruise report.
28. Fouquet Y., et al. Comparison of sulfide mineralization related to slow spreading ridges with high magmatic budget (Lucky Strike and Menez Gwen sites) and low magmatic budget (15°N area). J. Conf. Abstr. 1:1996;789-790. (abstr).
29. Frueh-Green G.L., Kelley D.S. Methane-rich fluids during ocean-floor serpentinization and hydrothermal alteration of the lower oceanic crust. Eos Trans. 77:1996;F725. (abstr).
30. Gamo T., et al. Hydrothermal plumes in the eastern Manus Basin, Bismarck Sea CH4, Mn, Al and pH anomalies . Deep Sea Res. 40:1993;2335-2349.
31. Gamo T., et al. Hydrothermal plumes at the Rodriguez triple junction, Indian Ridge. Earth Planet. Sci. Lett. 142:1996;261-270.
32. German C.R., et al. Hydrothermal activity on the Reykjanes Ridhe The Steinaholl vent field at 63°06′N . Earth Planet. Sci. Lett. 121:1994;647-654.
33. Giardini A.A., Subrarayudu V., Melton C.E. The emission of occluded gas from rocks as a function of stress its possible use as a tool for predicting earthquakes . Geophys. Res. Lett. 3:1976;355-358.
34. Haggerty J.A. Evidence from fluid seeps atop serpentine seamounts in the Mariana Forearc Clues for emplacement of the seamounts and their relationship to forearc tectonics . Mar. Geol. 102:1991;293-309.
35. Horibe Y., Kim K.R., Craig H. Hydrothermal methane plumes in the Mariana back-arc spreading centre. Nature. 324:1986;131-133.
36. Ishibashi J.I., Sano Y., Wakita H., Gamo T., Tsutsumi M., Sakai H. Helium and carbon geochemistry of hydrothermal fluids from the Mid-Okinawa Trough Back Arc Basin, southwest of Japan. Chem. Geol. 123:1995;1-15.
37. Ishibashi J.I., et al. Hydrothermal methane and manganese variation in the plume over the superfast-spreading southern East Pacific Rise. Geochim. Cosmochim. Acta. 61:1997;485-500.
38. Janecky D.R., Seyfried W.E. Hydrothermal serpentinization of peridotite within the oceanic crust Experimental investigations of mineralogy and major element chemistry . Geochim. Cosmochim. Acta. 50:1986;1357-1378.
39. Jean-Baptiste P., Charlou J.L., Stievenard M., Donval J.P., Bougault H., Mevel C. Helium and methane measurements in hydrothermal fluids from the Mid-Atlantic Ridge The Snakepit site at 23°N . Earth Planet. Sci. Lett. 106:1991;17-28.
40. 3He ingrowth method. Intl. J. Radiat. Appl. Instrum. Part A. 43:1992;881-891.
41. 3He in the western Atlantic Ocean. Deep-Sea Res. 23:1976;481-494.
42. Karson J.A., et al. Along axis variations in seafloor spreading in the MARK area. Nature. 328:1987;681-685.
43. Kelley D.S. Methane-rich fluids in the oceanic crust. J. Geophys. Res. 101:1996;2943-2962.
44. Kelley D.S., Frueh-Green G. Methane concentrations and isotopic compositions in Layer-3 of the oceanic crust. Eos Trans. 76:1995;F675. (abstr.).
45. Kelley D.S., Frueh-Green G. What is the origin of methane in submarine hydrothermal systems? Eos Trans. 77:1996;F725. (abstr.).
46. Lancet H.S., Anders E. Carbon isotope fractionation in the Fischer-Tropsch synthesis of methane. Science. 170:1970;980-982.
47. Plumbing the Pacific sinks. Nature. 339:1989;427-428.
48. Lilley M.D., Baross J.A., Gordon L.I. Reduced gases and bacteria in hydrothermal fluids The Galapagos spreading center and 21°N East Pacific Rise . Rona P.A., et al. Hydrothermal Processes at Seafloor Spreading Centers. 1983;411-419 Plenum.
49. + concentrations at an unsedimented mid-ocean-ridge hydrothermal system. Nature. 364:1993;45-47.
50. Lupton J.E., et al. Chemical and physical diversity of hydrothermal plumes along the East Pacific Rise, 8°45′N to 11°50′N. Geophys. Res. Lett. 20:1993;2913-2916.
51. Michael P.J., Bonatti E. Peridotite composition from the North Atlantic Regional and tectonic variations and implications for partial melting . Earth Planet. Sci. Lett. 73:1985;91-104.
52. Mottl M.J., et al. Upwelling of Cl-poor, S-, and C-rich waters through a serpentinite seamount, Mariana Forearc ODP Leg 125 . Eos. 70:1989;1382. (abstr).
53. Mottl M.J., Sansone F.J., Wheat C.G., Resing J.A., Baker E.T., Lupton J.E. Manganese and methane in hydrothermal plumes along the East Pacific Rise, 8°40 to 11°50′N. Geochim. Cosmochim. Acta. 20:1995;4147-4165.
54. Neal C., Stanger G. Hydrogen generation from mantle source rocks in Oman. Earth Planet. Sci. Lett. 66:1983;315-320.
55. Nojiri Y., Ishibashi J.I., Kawai T., Otsuki A., Sakai H. Hydrothermal plumes along the North Fiji Basin spreading axis. Nature. 342:1989;667-670.
56. Palmer M.R., Ludford E.M., German C.R., Lilley M.D. Dissolved methane and hydrogen in the Steinaholl hydrothermal plume, Reykjanes Ridge. Geol. Soc. London Spec. Publ. 87:1995;111-120.
57. 12C ratios of rocks and inclusions in popping rocks of the Mid-Atlantic Ridge. Earth Planet. Sci. Lett. 29:1976;413-421.
58. Poreda R.J., Marti K., Craig H. Rare gases and hydrogen in native metals. Gopalan K., et al. From Mantle to Meteorites. 1990;153-172 Indian Acad. Sci.
59. Porfirev V.B. Inorganic origin of petroleum. Annu. Assoc. Petrol. Geol. Bull. 58:1974;3-33.
60. Rona P.A., Widenfalk L., Bostrom K. Serpentinized ultramafics and hydrothermal activity at the Mid-Atlantic Ridge crest near 15°N. J. Geophys. Res. 92:1987;1427-1427.
61. Rona P.A., et al. Hydrothermal circulation, serpentinization, and degassing at a rift valley-fracture zone intersection Mid-Atlantic ridge near 15°N, 45°W . Geology. 20:1992;783-786.
62. Sakai H., et al. Unique chemistry of the hydrothermal solution in the Mid-Okinawa Trough backarc basin. Geophys. Res. Lett. 17:1990;2133-2136.
63. Sano Y., Wakita H. Helium isotopes and heat flow on the ocean floor. Chem. Geol. (Isot. Geosci.). 66:1987;217-226.
64. Sayles F.L., Jenkins W.J. Advection of pore fluids through sediments in the Equatorial East Pacific. Science. 217:1982;245-248.
65. Schoell M. Multiple origins of methane in the Earth. Chem. Geol. 71:1988;1-10.
66. Sempéré J., Purdy G.M., Schouten H. Segmentation of the Mid-Atlantic Ridge between 24°N and 30°40′N. Nature. 344:1990;427-431.
67. Silantiev S. H., et al. (1993) Cruise report of the 16th cruise of the R/V Akademik Boris Petrov, Vernadsky Inst. Geochem.
68. Silantiev S.A., et al. An examination of genetic conformity between co-existing basalt, gabbro and residual peridotites from 15°20′N Fracture Zone, Central Atlantic Evidence from isotope composition of Sr, Nd and Pb . InterRidge News. 4:1995;18-21.
69. Stuben D., Neumann T.H., Taibi N.E., Glasby G.P. Variations in hydrothermal activity at the Marianna Arc Backarc Spreading Centre at 18°13′N between 1987 and 1990. Chem. Erde. 55:1995;61-79.
70. Sugisaki P., et al. Origin of hydrogen and carbon dioxide in fault gases and its relation to fault activity. J. Geol. 91:1983;239-258.
71. 4 hydrocarbons in seawater by gas chromatography. Anal. Chem. 34:1967;483-485.
72. Szatmari P. Petroleum formation by Fischer-Tropsch synthesis in plate tectonics. Amer. Assoc. Petrol. Geol. Bull. 73:1989;989-998.
73. Welhan J.A. Origins of methane in hydrothermal systems. Chem. Geol. 71:1988;183-198.
74. Welhan J.A., Craig H. Abiogenic methane in mid-ocean ridge hydrothermal fluids. Gwillian W.J. Deep-Source-Gas Workshop Technical Proceedings. 1982;122-128 DOE- METC-82-50.
75. Welhan J.A., Craig H. Methane, hydrogen, and helium in hydrothermal fluids at 21°N on the East Pacific Rise. Rona P.A., et al. Hydrothermal Processes at Seafloor Spreading Centers. 1983;391-409 Plenum.