Proc. IODP, 336, Expedition 336 summary

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Chapter contents Abstract Introduction Background Geological setting Site survey data: seismic, bathymetric, heat flow, and sediment coring Scientific objectives Where do deep-seated microbial communities come from? What is the nature of the microbial communities harbored in young ridge flanks, and what is their role in the ocean crust weathering? Operations plan Hydrologic (drill string packer) testing Logging/Downhole measurements Summary of operational achievements Site summaries Hole 395A Site U1382 Site U1383 Sediment and basement contact coring (Holes U1383D, U1383E, U1382B, and U1384A) Atmospheric and surface-water microbiology studies Education, outreach, and communication objectives Education, outreach, and communication summary References Figures F1. Location map. F2. Bathymetric map. F3. Hole 395A logging results. F4. CORK configuration, Hole 395A. F5. Hole U1382A logging results. F6. CORK configuration, Hole U1382A. F7. Reentry cone and casing, Hole U1383B. F8. Hole U1383C logging results. F9. CORK configuration, Hole U1383C. F10. Basement section, Hole U1383C. F11. Alteration and basement section, Hole U1383C. F12. Basement section, Hole U1382A. F13. JOIDES Resolution website visits. Table T1. Educational videoconferences. PDF file			Previous \| Next doi:10.2204/iodp.proc.336.101.2012 References Arai, S., and Fujii, T., 1979. Petrology of ultramafic rocks from Site 395. In Melson, W.G., Rabinowitz, P.D., et al., Init. Repts. DSDP, 45: Washington, DC (U.S. Govt. Printing Office), 587–594. doi:10.2973/dsdp.proc.45.134.1979 Bach, W., and Edwards, K.J., 2003. Iron and sulfide oxidation within the basaltic ocean crust: implications for chemolithoautotrophic microbial biomass production. Geochim. Cosmochim. Acta, 67(20):3871–3887. doi:10.1016/S0016-7037(03)00304-1 Bach, W., Humphris, S.E., and Fisher, A.T., 2004. Fluid flow and fluid-rock interaction within ocean crust: reconciling geochemical, geological, and geophysical observations. 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Long-range transatlantic transport of microorganisms in clouds of African desert dust: a study of atmospheric microbiology, chemistry, and the influence of desert dust on surface water microbial ecology aboard the R/V JOIDES Resolution, IODP Expedition 336, 16 September–16 November 2011. In Edwards, K.J., Bach, W., Klaus, A., and the Expedition 336 Scientists, Proc. IODP, 336: Tokyo (Integrated Ocean Drilling Program Management International, Inc.). doi:10.2204/iodp.proc.336.110.2012 Hickman, S.H., Langseth, M.G., and Svitek, J.F., 1984. In situ permeability and pore-pressure measurements near the Mid-Atlantic Ridge, Deep Sea Drilling Project Hole 395A. In Hyndman, R.D., Salisbury, M.H., et al., Init. Repts. DSDP, 78B: Washington, DC (U.S. Govt. Printing Office), 699–708. doi:10.2973/dsdp.proc.78b.106.1984 Hyndman, R.D., Salisbury, M.H., et al., 1984. Init. Repts. DSDP, 78B: Washington, DC (U.S. Govt. Printing Office). doi:10.2973/dsdp.proc.78b.1984 Knab, N., and Edwards, K.J., in press. Competition between kinetics of chemical and biological iron oxidation: environmental implications. Geobiology. Langseth, M.G., Becker, K., Von Herzen, R.P., and Schultheiss, P., 1992. Heat and fluid flux through the sediment on the western flank of the Mid-Atlantic Ridge: a hydrogeological study of North Pond. Geophys. Res. Lett., 19(5):517–520. doi:10.1029/92GL00079 Langseth, M.G., Hyndman, R., Becker, K., Hickman, S.H., and Salisbury, M., 1984. The hydrogeological regime of isolated sediment ponds in mid-oceanic ridges. In Hyndman, R.D., Salisbury, M.H., et al., Init. Repts. DSDP, 78B: Washington, DC (U.S. Govt. Printing Office), 825–837. doi:10.2973/dsdp.proc.78b.117.1984 Matthews, M., Salisbury, M.H., and Hyndman, R., 1984. Basement logging on the Mid-Atlantic Ridge, Deep Sea Drilling Project Hole 395A. In Hyndman, R.D., Salisbury, M.H., et al., Init. Repts. DSDP, 78B: Washington, DC (U.S. Govt. Printing Office, 717–730. doi:10.2973/dsdp.proc.78b.108.1984 McDuff, R.E., 1984. The chemistry of interstitial waters from the upper ocean crust, Site 395, Deep Sea Drilling Project Leg 78B. In Hyndman, R.D., Salisbury, M.H., et al., Init. Repts. DSDP, 78B: Washington, DC (U.S. Govt. Printing Office), 795–799. doi:10.2973/dsdp.proc.78b.114.1984 Melson, W.G., Rabinowitz, P.D., et al., 1979. Init. Repts. DSDP, 45: Washington, DC (U.S. Govt. Printing Office). doi:10.2973/dsdp.proc.45.1979 Orcutt, B., Wheat, C.G., and Edwards, K.J., 2010. Subseafloor ocean crust microbial observatories: development of FLOCS (Flow-Through Osmo Colonization System) and evaluation of borehole construction materials. Geomicrobiol. J., 27(2):143–157. doi:10.1080/01490450903456772 Orcutt, B.N., Bach, W., Becker, K., Fisher, A.T., Hentscher, M., Toner, B.M., Wheat, C.G., and Edwards, K.J., 2011a. Colonization of subsurface microbial observatories deployed in young ocean crust. ISME J., 5(4):692–703. doi:10.1038/ismej.2010.157 Orcutt, B.N., Bowman, D., Inderbitzen, K., Haddad, A., Fisher, A.T., and Peart, L., 2011b. The ‘Adopt-A-Microbe’ project: web-based interactive microbiology education connected with scientific ocean drilling. Curr.: J. Mar. Educ., 27(3):40–44. Rogers, D.R., Santelli, C.M., and Edwards, K.J., 2003. Geomicrobiology of deep-sea deposits: estimating community diversity from low-temperature seafloor rocks and minerals. Geobiology, 1(2):109–117. doi:10.1046/j.1472-4669.2003.00009.x Schmidt-Schierhorn, F., Kaul, N., Stephan, S., and Villinger, H., 2012. Geophysical site survey results from North Pond (Mid-Atlantic Ridge). In Edwards, K.J., Bach, W., Klaus, A., and the Expedition 336 Scientists, Proc. IODP, 336: Tokyo (Integrated Ocean Drilling Program Management International, Inc.). doi:10.2204/iodp.proc.336.107.2012 Shipboard Scientific Party, 1979. Site 395: 23°N, Mid-Atlantic Ridge. In Melson, W.G., Rabinowitz, P.D., et al., Init. Repts. DSDP, 45: Washington, DC (U.S. Govt. Printing Office), 131–264. doi:10.2973/dsdp.proc.45.107.1979 Sinton, J.M., 1979. Petrology of (alpine-type) peridotites from Site 395, DSDP Leg 45. In Melson, W.G., Rabinowitz, P.D., et al., Init. Repts. DSDP, 45: Washington, DC (U.S. Govt. Printing Office), 595–601. doi:10.2973/dsdp.proc.45.135.1979 Villinger, H., and Cruise Participants, 2010. Short cruise report: RV Maria S. Merian Cruise MSM11/1. http://www.ifm.zmaw.de/fileadmin/files/leitstelle/merian/MSM11/MSM11-1-SCR.pdf Wheat, C.G., Jannasch, H.W., Kastner, M., Plant, J.N., and DeCarlo, E.H., 2003. Seawater transport and reaction in upper oceanic basaltic basement: chemical data from continuous monitoring of sealed boreholes in a ridge flank environment. Earth Planet. Sci. Lett., 216(4):549–564. doi:10.1016/S0012-821X(03)00549-1 Wirsen, C.O., Brinkhoff, T., Kuever, J., Muyzer, G., Molyneaux, S., and Jannasch, H.W., 1998. Comparison of a new Thiomicrospira strain from the Mid-Atlantic Ridge with known hydrothermal vent isolates. Appl. Environ. Microbiol., 64(10):4057–4059. http://aem.asm.org/cgi/content/full/64/10/4057 Wirsen, C.O., Jannasch, H.W., and Molyneaux, S.J., 1993. Chemosynthetic microbial activity at Mid-Atlantic Ridge hydrothermal vent sites. J. Geophys. Res., [Solid Earth], 98(B6):9693–9703. doi:10.1029/92JB01556 Top of page \| Previous \| Next

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