Carbon release by off-axis magmatism in a young sedimented spreading centre (original) (raw)

References

1. Lerman, A., Wu, L. & Mackenzie, F. T. CO2 and H2SO4 consumption in weathering and material transport to the ocean, and their role in the global carbon balance. Mar. Chem. 106, 326–350 (2007).
   Article Google Scholar
2. Eyles, N. Glacio-epochs and the supercontinent cycle after ∼3.0Ga: Tectonic boundary conditions for glaciation. Palaeogeogr. Palaeoclimatol. Palaeoecol. 258, 89–129 (2008).
   Article Google Scholar
3. Yannick Donnadieu, Y., Goddéris, Y., Ramstein, G., Anne Nédélec, A. & Meert, J. A ‘snowball Earth’ climate triggered by continental break-up through changes in runoff. Nature 428, 303–307 (2004).
   Article Google Scholar
4. Macdonald, K.C. Mid-ocean ridges: Fine-scale tectonic, volcanic, and hydrothermal processes within the plate boundary zone. Annu. Rev. Earth Planet. Sci. 10, 155–190 (1982).
   Article Google Scholar
5. Stock, J. M. & Lee, J. Do microplates in subduction zones leave a geological record? Tectonics 13, 1472–1487 (1994).
   Article Google Scholar
6. Lizarralde, D. et al. Variation in styles of rifting in the Gulf of California. Nature 448, 466–469 (2007).
   Article Google Scholar
7. Einsele, G. et al. Intrusion of basaltic sills into highly porous sediments, and resulting hydrothermal activity. Nature 283, 441–445 (1980).
   Article Google Scholar
8. Davies, R., Bell, B. R., Cartwright, J. A. & Shoulders, S. Three-dimensional seismic imaging of Paleogene dike-fed submarine volcanoes from the northeast Atlantic margin. Geology 30, 223–226 (2002).
   Article Google Scholar
9. Schrader, H. in Init. Rep. DSDP 64 (eds Curray, J. & Moore, D.) 973–981 (US Government Printing Office, 1982).
   Google Scholar
10. Dixon, T. H. et al. New kinematic models for Pacific-North America motion from 3 Ma to present, II, Evidence for a ‘Baja California shear zone’. Geophys. Res. Lett. 26, 1921–1924 (2000).
    Google Scholar
11. Einsele, G. Basaltic sill-sediment complexes in young spreading centers: Genesis and significance. Geology 13, 249–252 (1985).
    Article Google Scholar
12. Hansen, D. M & Cartwright, J. A. The three-dimensional geometry and growth of forced folds above saucer-shaped igneous sills. J. Struct. Geol. 28, 1520–1535 (2006).
    Article Google Scholar
13. Svensen, H., Planke, S., Jamtveit, B. & Pedersen, T. Seep carbonate formation controlled by hydrothermal vent complexes: A case study from the Vøring Basin, the Norwegian Sea. Geo-Mar. Lett. 23, 351–358 (2004).
    Article Google Scholar
14. Trude, J., Cartwright, J. A., Davies, R. J. & Smallwood, J. New technique for dating igneous sills. Geology 31, 813–816 (2003).
    Article Google Scholar
15. Galimov, E. M. & Simoneit, B. R. T. in Init. Rep. DSDP 64 (eds Curray, J. & Moore, D.) 781–787 (US Government Printing Office, 1982).
    Google Scholar
16. Seewald, J. S., Seyfried, W. E. & Thornton, E. C. Organic-rich sediment alteration; an experimental and theoretical study at elevated temperatures and pressures. Appl. Geochem. 5, 193–209 (1990).
    Article Google Scholar
17. Kastner, M. in Init. Rep. DSDP 64 (eds Curray, J. & Moore, D.) 1143–1158 (US Government Printing Office, 1982).
    Google Scholar
18. Schoell, M. Multiple origins of methane in the earth. Chem. Geol. 71, 1–10 (1988).
    Article Google Scholar
19. Whitcar, M. J. Carbon and hydrogen isotope systematics of bacterial formation and oxidation of methane. Chem. Geol. 161, 291–314 (1999).
    Article Google Scholar
20. Glasby, G. P. & Notsu, K. Submarine hydrothermal mineralization in the Okinawa Trough, SW of Japan. Ore Geol. Rev. 23, 299–339 (2003).
    Article Google Scholar
21. Craig, H., Clarke, W. B. & Beg, M. A. Excess 3He in deep water on the East Pacific Rise. Earth Planet. Sci. Lett. 26, 125–132 (1975).
    Article Google Scholar
22. Lupton, J. E. Helium-3 in the Guaymas Basin: Evidence for injection of mantle volatiles in the Gulf of California. J. Geophys. Res. 84, 7446–7452 (1979).
    Article Google Scholar
23. Campbell, A. C., Gieskes, J. M., Lupton, J. E. & Lonsdale, P. F. Manganese geochemistry in the Guaymas Basin, Gulf of California. Geochim. Cosmochim. Acta 52, 345–357 (1988).
    Article Google Scholar
24. Gieskes, I., Kastner, M., Einsele, G., Kelts, K. & Niemitz, J. in Init. Rep. DSDP 64 (eds Curray, J. & Moore, D.) 1159–1168 (US Government Printing Office, 1982).
    Google Scholar
25. Thunell, R., Benitez-Nelson, C., Varela, R., Astor, Y. & Muller-Karger, F. Particulate organic carbon fluxes along upwelling-dominated continental margins: Rates and mechanisms. Glob. Biogeochem. Cycles 21, GB1022 (2007).
    Article Google Scholar
26. Sparks, D. W. & Parmentier, E. M. Melt extraction from the mantle beneath spreading centers. Earth Planet. Sci. Lett. 105, 368–377 (1991).
    Article Google Scholar
27. Rabinowicz, M. & Ceuleneer, G. The effect of sloped isotherms on melt migration in the shallow mantle: A physical and numerical model based on observations in the Oman ophiolite. Earth Planet. Sci. Lett. 229, 231–246 (2005).
    Article Google Scholar
28. Maclennan, J., Hulme, T. & Singh, S. C. Thermal models of oceanic crustal accretion: Linking geophysical, geological and petrological observations. Geochem. Geophys. Geosyst. 5, Q02F25 (2004).
    Article Google Scholar
29. Fisher, A. T. & Narasimhan, T. N. Numerical simulations of hydrothermal circulation resulting from basalt intrusion in a buried spreading center. Earth Planet. Sci. Lett. 103, 100–115 (1991).
    Article Google Scholar
30. Simoneit, B. R. T. & Bode, J. R. in Init. Rep. DSDP 64 (eds Curray, J. &Moore, D.) 1303–1305 (US Government Printing Office, 1982).
    Google Scholar

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