Leg 168

Initial Reports volume citation

Initial Reports chapter citations

Scientific Results volume citation

    Fisher, A.T., Davis, E.E., and Escutia, C. (Eds.), 2000. Proc. ODP, Sci. Results, 168: College Station, TX (Ocean Drilling Program). doi:10.2973/odp.proc.sr.168.2000

Scientific Results chapter citations

    Cavin, A., Underwood, M., Fisher, A., and Johnston-Karas, A., 2000. Relations between textural characteristics and physical properties of sediments in northwestern Cascadia Basin. In Fisher, A.T., Davis, E.E., and Escutia, C. (Eds.), Proc. ODP, Sci. Results, 168: College Station, TX (Ocean Drilling Program), 67–84. doi:10.2973/odp.proc.sr.168.013.2000

    Fisher, A.T., and Davis, E.E., 2000. An introduction to the scientific results of Leg 168. In Fisher, A.T., Davis, E.E., and Escutia, C. (Eds.), Proc. ODP, Sci. Results, 168: College Station, TX (Ocean Drilling Program), 3–5. doi:10.2973/odp.proc.sr.168.001.2000

    Fisk, M.R., Thorseth, I.H., Urbach, E., and Giovannoni, S.J., 2000. Investigation of microorganisms and DNA from subsurface thermal water and rock from the east flank of Juan de Fuca Ridge. In Fisher, A.T., Davis, E.E., and Escutia, C. (Eds.), Proc. ODP, Sci. Results, 168: College Station, TX (Ocean Drilling Program), 167–174. doi:10.2973/odp.proc.sr.168.021.2000

    Inoue, A., 2000. Data report: exchangeable cation composition of terrigeneous hemipelagic sediments in the eastern flank of the Juan de Fuca Ridge. In Fisher, A.T., Davis, E.E., and Escutia, C. (Eds.), Proc. ODP, Sci. Results, 168: College Station, TX (Ocean Drilling Program), 87–94. doi:10.2973/odp.proc.sr.168.014.2000

    Marescotti, P., Vanko, D.A., and Cabella, R., 2000. From oxidizing to reducing alteration: mineralogical variations in pillow basalts from the east flank, Juan de Fuca Ridge. In Fisher, A.T., Davis, E.E., and Escutia, C. (Eds.), Proc. ODP, Sci. Results, 168: College Station, TX (Ocean Drilling Program), 119–136. doi:10.2973/odp.proc.sr.168.006.2000

    Mather, I.D., and Parkes, R.J., 2000. Bacterial profiles in sediments of the eastern flank of the Juan de Fuca Ridge, Sites 1026 and 1027. In Fisher, A.T., Davis, E.E., and Escutia, C. (Eds.), Proc. ODP, Sci. Results, 168: College Station, TX (Ocean Drilling Program), 161–165. doi:10.2973/odp.proc.sr.168.023.2000

    Monnin, C., Karpoff, A.-M., and Buatier, M., 2000. Calcium carbonate stability in the sediments of the eastern flank of the Juan de Fuca Ridge. In Fisher, A.T., Davis, E.E., and Escutia, C. (Eds.), Proc. ODP, Sci. Results, 168: College Station, TX (Ocean Drilling Program), 95–103. doi:10.2973/odp.proc.sr.168.017.2000

    Mottl, M.J., Wheat, C.G., Monnin, C., and Elderfield, H., 2000. Data report: trace elements and isotopes in pore water from Sites 1023 through 1032, eastern flank of the Juan de Fuca Ridge. In Fisher, A.T., Davis, E.E., and Escutia, C. (Eds.), Proc. ODP, Sci. Results, 168: College Station, TX (Ocean Drilling Program), 105–115. doi:10.2973/odp.proc.sr.168.019.2000

    Porter, S., Vanko, D.A., and Ghazi, A.M., 2000. Major and trace element compositions of secondary clays in basalts altered at low temperature, eastern flank of the Juan de Fuca Ridge. In Fisher, A.T., Davis, E.E., and Escutia, C. (Eds.), Proc. ODP, Sci. Results, 168: College Station, TX (Ocean Drilling Program), 149–157. doi:10.2973/odp.proc.sr.168.004.2000

    Rosenberger, A., Davis, E.E., and Villinger, H., 2000. Data report: hydrocell-95 and -96 single-channel seismic data on the eastern Juan de Fuca Ridge flank. In Fisher, A.T., Davis, E.E., and Escutia, C. (Eds.), Proc. ODP, Sci. Results, 168: College Station, TX (Ocean Drilling Program), 9–19. doi:10.2973/odp.proc.sr.168.021.2000

    Su, X., Baumann, K.-H., and Thiede, J., 2000. Calcareous nannofossils from Leg 168: biochronology and diagenesis. In Fisher, A.T., Davis, E.E., and Escutia, C. (Eds.), Proc. ODP, Sci. Results, 168: College Station, TX (Ocean Drilling Program), 39–49. doi:10.2973/odp.proc.sr.168.015.2000

    Sun, Y.F., 2000. Core-log-seismic integration in hemipelagic marine sediments on the eastern flank of the Juan de Fuca Ridge. In Fisher, A.T., Davis, E.E., and Escutia, C. (Eds.), Proc. ODP, Sci. Results, 168: College Station, TX (Ocean Drilling Program), 21–35. doi:10.2973/odp.proc.sr.168.009.2000

    Underwood, M.B., and Hoke, K.D., 2000. Composition and provenance of turbidite sand and hemipelagic mud in northwestern Cascadia Basin. In Fisher, A.T., Davis, E.E., and Escutia, C. (Eds.), Proc. ODP, Sci. Results, 168: College Station, TX (Ocean Drilling Program), 51–65. doi:10.2973/odp.proc.sr.168.012.2000

    Yatabe, A., Vanko, D.A., and Ghazi, A.M., 2000. Petrography and chemical compositions of secondary calcite and aragonite in Juan de Fuca Ridge basalts altered at low temperature. In Fisher, A.T., Davis, E.E., and Escutia, C. (Eds.), Proc. ODP, Sci. Results, 168: College Station, TX (Ocean Drilling Program), 137–148. doi:10.2973/odp.proc.sr.168.003.2000

Journals/Books (notify us)

    Amend, J.P., and Teske, A., 2005. Expanding frontiers in deep subsurface microbiology. Palaeogeogr., Palaeoclimatol., Palaeoecol., 219(1–2):131–135. doi:10.1016/j.palaeo.2004.10.018

    Andersson, E., Simoneit, B.R.T., and Holm, N.G., 2000. Amino acid abundances and stereochemistry in hydrothermally altered sediments from the Juan de Fuca Ridge, northeastern Pacific Ocean. App. Geochem, 15:1169–1190. doi:10.1016/S0883-2927(99)00110-9

    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

    Becker, K., and Fisher, A.T., 2000. Permeability of upper oceanic basement on the eastern flank of the Juan de Fuca Ridge determined with drill-string packer experiments. J. Geophys. Res., 105:897–912. doi:10.1029/1999JB900250

    Bonifacie, M., Monnin, C., Jendrzejewski, N., Agrinier, P., and Javoy, M., 2007. Chlorine stable isotopic composition of basement fluids of the eastern flank of the Juan de Fuca Ridge (ODP Leg 168). Earth Planet. Sci. Lett., 260:10–22. doi:10.1016/j.epsl.2007.05.011

    Buatier, M.D., Karpoff, A.M., and Charpentier, D., 2002. Clays and zeolite authigenesis in sediments from the flank of the Juan de Fuca Ridge. Clay Mineral., 37(1):143–155. doi:10.1180/0009855023710024

    Buatier, M.D., Monnin, C., Früh-Green, G.L., and Karpoff, A.-M., 2001. Fluid-sediment interactions related to hydrothermal circulation in the Eastern Flank of the Juan de Fuca Ridge. Chem. Geol., 175:343–360. doi:10.1016/S0009-2541(00)00327-2

    Coggon, R.M., and Teagle, D.A.H., 2011. Hydrothermal calcium-carbonate veins reveal past ocean chemistry. TrAC, Trends Anal. Chem., 30(8):1252–1268. doi:10.1016/j.trac.2011.02.011

    Coggon, R.M., Teagle, D.A.H., Cooper, M.J., and Vanko, D.A., 2004. Linking basement carbonate vein compositions to porewater geochemistry across the eastern flank of the Juan de Fuca Ridge, ODP Leg 168. Earth Planet. Sci. Lett., 219:111–128. doi:10.1016/S0012-821X(03)00697-6

    Davis, E., and Becker, K., 1998. Borehole observatories record driving forces for hydrothermal circulation in young oceanic crust. Eos, Trans. Am. Geophys. Union, 79:369, 377–378. doi:10.1029/98EO00275

    Davis, E.E., and Becker, K., 1999. Tidal pumping of fluids within and from the oceanic crust: new observations and opportunities for sampling the crustal hydrosphere. Earth Planet. Sci. Lett., 172:141–149. doi:10.1016/S0012-821X(99)00197-1

    Davis, E.E., and Becker, K., 2001. Using ODP boreholes for studying sub-seafloor hydrogeology: results from the first decade of CORK observations. Geoscience Canada, 28:171–178. http://journals.hil.unb.ca/index.php/GC/article/view/4099

    Davis, E.E., Chapman, D.S., Mottl, M.J., Bentkowski, W.J., Dadey, K., Forster, C., Harris, R., Nagihara, S., Rohr, K., Wheat, G., and Whiticar, M., 1992. FlankFlux: an experiment to study the nature of hydrothermal circulation in young oceanic crust. Can. J. Earth Sci., 29(5):925–952. doi:10.1139/e92-078

    Davis, E.E., Chapman, D.S., Wang, K., Villinger, H., Fisher, A.T., Robinson, S.W., Grigel, J., Pribnow, D., Stein, J., and Becker, K., 1999. Regional heat flow variations across the sedimented Juan de Fuca Ridge eastern flank: constraints on lithospheric cooling and lateral hydrothermal heat transport. J. Geophys. Res.,104:17675–17688. doi:10.1029/1999JB900124

    Davis, E., Fisher, A., Firth, J., and the ODP Leg 168 Shipboard Scientific Party, 1997. Hydrogeology of the upper oceanic crust. JOIDES J., 23(1):6–7, 10. http://www-odp.tamu.edu/publications/citations/joides_j/joides_j_23_1.pdf#page=6

    Davis, E.E., Fisher, A.T., Firth, J.V., and Shipboard Scientific Party, 1997. Drilling program traces fluid circulation through Juan de Fuca Ridge crust. Eos, Trans. Am. Geophys. Union, 78(18):187–189. doi:10.1029/97EO00125

    Davis, E.E., LaBonte, A., He, J., Becker, K., and Fisher, A., 2010. Thermally stimulated "runaway" downhole flow in a superhydrostatic ocean crustal borehole: observations, simulations, and inferences regarding crustal permeability. J. Geophys. Res.: Solid Earth, 115(B7):B07102. doi:10.1029/2009JB006986

    Davis, E.E., Villinger, H., MacDonald, R.D., Meldrum, R.D., and Grigel, J., 1997. A robust rapid-response probe for measuring bottom-hole temperatures in deep-ocean boreholes. Mar. Geophys. Res., 19(3):267–281. doi:10.1023/A:1004292930361

    Davis, E.E., Wang, K., Becker, K., and Thomson, R.E., 2000. Formation scale hydraulic and mechanical properties of oceanic crust inferred from pore-pressure response to periodic seafloor loading. J. Geophys. Res., 105:13423–13436. doi:10.1029/2000JB900084

    Davis, E.E., Wang, K., Becker, K., Thomson, R.E., and Yashayaev, I., 2003. Deep-ocean temperature variations and implications for errors in seafloor heat flow determinations. J. Geophys. Res., 108. doi:10.1029/2001JB001695

    Davis, E.E., Wang, K., Thomson, R.E., Becker, K., and J.F., Cassidy, 2001. An episode of seafloor spreading and associated plate deformation inferred from crustal fluid pressure transients. J. Geophys. Res., 106:21953–21963. doi:10.1029/2000JB000040

    D'Hondt, S., Rutherford, S., and Spivack., A.J., 2002. Metabolic activity of the subsurface life in deep-sea sediments. Science, 295(5562):2067–2070. doi:10.1126/science.1064878

    Elderfield, H., Wheat, C.G., Mottl, M.J., Monnin, C., and Spiro, B., 1999. Fluid and geochemical transport through oceanic crust: a transect across the eastern flank of the Juan de Fuca Ridge. Earth Planet. Sci. Lett., 172:151–165. doi:10.1016/S0012-821X(99)00191-0

    Fisher, A.T., 2005. Marine hydrogeology: recent accomplishments and future opportunities. Hydrogeol. J., 13(1):69–97. doi:10.1007/s10040-004-0400-y

    Fisher, A.T., and Becker, K., 2000. Channelized fluid flow in oceanic crust reconciles heat-flow and permeability data. Nature, 403:71–74. doi:10.1038/47463

    Fisher, A.T., Becker, K., and Davis, E.E., 1997. The permeability of young oceanic crust east of Juan de Fuca Ridge determined using borehole thermal measurements. Geophys. Res. Lett., 24:1311–1314. doi:10.1029/97GL01286

    Fisher, A.T., Davis, E.E., Hutnak, M., Spiess, V., Zühlsdorff, L., Cherkaoui, A., Christiansen, L., Edwards, K., Macdonald, R., Villinger, H., Mottl, M.J., Wheat, C.G., and Becker, K., 2003. Hydrothermal recharge and discharge across 50 km guided by seamounts on a young ridge flank. Nature, 421:618–621. doi:10.1038/nature01352

    Fisk, M.R., Giovannoni, S.J., and Thorseth, I.H., 1998. Alteration of oceanic volcanic glass: textural evidence of microbial activity. Science, 281(5379):978–980. doi:10.1126/science.281.5379.978

    Giambalvo, E.R., Fisher, A.T., Martin, J.T., Darty, L., and Lowell, R.P., 2000. Origin of elevated sediment permeability in a hydrothermal seepage zone, eastern flank of the Juan de Fuca Ridge, and implications for transport of fluid and heat. J. Geophys. Res.,105:913–928. doi:10.1029/1999JB900360

    Giorgetti, G., Marescotti, P., Cabella, R., and Lucchetti, G., 2001. Clay mineral mixtures as alteration products in pillow basalts from the eastern flank of Juan de Fuca Ridge: a TEM-AEM study. Clay Miner., 36:75–91. http://claymin.geoscienceworld.org/content/36/1/75.short

    Grevemeyer, I., Kaul, N., Villinger, H., and Weigel, W., 1999. Hydrothermal activity and the evolution of the seismic properties of upper oceanic crust. J. Geophys. Res.: Solid Earth, 104(B3):5069–5079. doi:10.1029/1998JB900096

    Harris, R.N., Fisher, A.T., and Chapman, D.S., 2004. Fluid flow through seamounts and implications for global mass fluxes. Geology, 32(8):725–728. doi:10.1130/G20387.1

    Huber, J.A., Johnson, H.P., Butterfield, D.A., and Baross, J.A., 2006. Microbial life in ridge flank crustal fluids. Environ. Microbiol., 88(1):88–99. doi:10.1111/j.1462-2920.2005.00872.x

    Hunter A.G., and ODP Leg 168 Scientific Party, 1998. Petrological investigations of low temperature hydrothermal alteration of the upper crust, Juan de Fuca Ridge, ODP Leg 168. In Mill, R.A., and Harrison, K. (Eds), Modern Ocean Floor Processes and the Geological Record, Geol. Soc. Spec. Publ. London, 148:99–125. doi:10.1144/GSL.SP.1998.148.01.07

    Hunter, A.G., Kempton, P.D., and Greenwood, P., 1999. Low-temperature fluid-rock interaction—an isotopic and mineralogical perspective of upper crustal evolution, eastern flank of the Juan de Fuca Ridge, ODP Leg 168. Chem. Geol., 155:3–28. doi:10.1016/S0009-2541(98)00138-7

    Inoue, A., 2000. Two-dimensional variations of exchangeable cation composition in the terrigenous sediment, eastern flank of the Juan de Fuca Ridge. Mar. Geol., 162:501–528. doi:10.1016/S0025-3227(99)00084-5

    Kameo, K., and Sato, T., 2000. Biogeography of Neogene calcareous nannofossils in the Caribbean and the eastern equatorial Pacific—floral response to the emergence of the Isthmus of Panama. Mar. Micropaleontol., 39(1–4):201–218. doi:10.1016/S0377-8398(00)00021-9

    Karsten, J.L., Becker, N., Mottl., M.J., and Wheat, C.G., 2012. Petrology of Baby Bare and Mama Bare lavas. Geophys. Res. Lett., 25(1):117–120. doi:10.1029/97GL53564

    Kenig, F., Simons, D.-J.H., Crich, D., Cowen, J.P., Ventura, G.T., Rehbein-Khalily, T., Brown, T.C., and Anderson, K.B., 2003. Branched aliphatic alkanes with Quaternary substituted carbon atoms in modern and ancient geologic samples. Proc. Natl. Acad. Sci. U. S. A., 100(22):12554–12558. doi:10.1073/pnas.1735581100

    Lund, S., Stoner, J.S., Channell, J.E.T., and Acton, G., 2006. A summary of Brunhes paleomagnetic field variability recorded in Ocean Drilling Program cores. Phys. Earth Planet. Inter., 156(3–4):194–204. doi:10.1016/j.pepi.2005.10.009

    Meldrum, R.D. Davis, E.E., Jones, G., and Macdonald, R.D., 1998. A Two-Way Acoustic Communication Link for Deep-Ocean Observatories, Mar. Technol. Soc. Journal, 32:24–31.

    Mottl, M.J., and Wheat, C.G., 1994. Hydrothermal circulation through mid-ocean ridge flanks: fluxes of heat and magnesium. Geochim. Cosmochim. Acta, 58(10):2225–2237. doi:10.1016/0016-7037(94)90007-8

    Mottl, M.J., Wheat, C.G., Baker, E., Becker, N., Davis, E., Feely, R., Grehan, A., Kadko, D., Lilley, M., Massoth, G., Moyer, C., and Sansone, F., 1998. Warm springs discovered on 3.5 Ma oceanic crust, eastern flank of the Juan de Fuca Ridge. Geology, 26:51–54. doi:10.1130/0091-7613(1998)026<0051:WSDOMO>2.3.CO;2

    Monnin, C., Wheat, C.G., Dupre, B., Elderfield, H., and Mottl, M., 2001. Barium geochemistry in sediment pore waters and formation waters of the oceanic crust on the eastern flank of the Juan de Fuca Ridge (ODP Leg 168). Geochem. Geophys. Geosyst., 2. doi:10.1029/2000GC000073

    Parkes, R.J., Cragg, B.A., and Wellsbury, P., 2000. Recent studies on bacterial populations and processes in subseafloor sediments: a review. Hydrogeol. J., 8(1):11–28. doi:10.1007/PL00010971

    Pribnow, D.F.C., Davis, E.E., and Fisher, A.T., 2000. Borehole heat flow along the eastern flank of the Juan de Fuca Ridge, including effects of anisotropy and temperature dependence of sediment thermal conductivity. J. Geophys. Res., 105:13449–13456. doi:10.1029/2000JB900005

    Rudnicki, M.D., Elderfield, H., and Mottl, M.J., 2001. Pore fluid advection and reaction in sediments of the eastern flank, Juan de Fuca Ridge, 48°N. Earth Planet. Sci. Lett., 187:173–189. doi:10.1016/S0012-821X(01)00287-4

    Rudnicki, M.D., Elderfield, H., and Spiro, B., 2001. Fractionation of sulfur isotopes during bacterial sulfate reduction in deep ocean sediments at elevated temperatures. Geochim. Cosmochim. Acta, 65:777–789. doi:10.1016/S0016-7037(00)00579-2

    Saettler, K., 1998. Composition, prov enance, and depositional patterns of turbidites and hemipelagic muds, northwestern Cascadia Basin [Ph.D. dissertation]. Univ. Missouri, Columbia.

    Schmidt, D.N., Thierstein, H.R., Bollmann, J., and Schiebel, R., 2004. Abiotic forcing of plankton evolution in the Cenozoic. Science, 303(5655):207–210. doi:10.1126/science.1090592

    Stein, J.S., and Fisher, A.T., 2003. Observations and models of lateral hydrothermal circulation on a young ridge flank: numerical evaluation of thermal and chemical constraints. Geochem., Geophys., Geosyst., 4(3):1026. doi:10.1029/2002GC000415

    Teichert, B.M.A., Gussone, N., and Torres, M.E., 2009. Controls on calcium isotope fractionation in sedimentary porewaters. Earth Planet. Sci. Lett., 279(3–4):373–382. doi:10.1016/j.epsl.2009.01.011

    Villinger, H., Grevemeyer, I., Kaul, N., Hauschild, J., and Pfender, M., 2002. Hydrothermal heat flux through aged oceanic crust: where does the heat escape? Earth Planet. Sci. Lett., 202(1):159–170. doi:10.1016/S0012-821X(02)00759-8

    Walker, B.D., McCarthy, M.D., Fisher, A.T., and Guilderson, T.P., 2007. Dissolved inorganic carbon isotopic composition of low-temperature axial and ridge-flank hydrothermal fluids of the Juan de Fuca Ridge. Mar. Chem., 108(1–2):123–136. doi:10.1016/j.marchem.2007.11.002

    Wheat, C.G., Elderfield, H., Mottl, M.J., and Monnin, C., 2000. Chemical composition of basement fluids within an oceanic ridge flank: implications for along-strike and across-strike hydrothermal circulation. J. Geophys. Res., 105:13437–13448. doi:10.1029/2000JB900070

    Wheat, C.G., and Fisher, A.T., 2007. Seawater recharge along an eastern bounding fault in Middle Valley, northern Juan de Fuca Ridge. Geophys. Res. Lett., 34(20):L20602. doi:10.1029/2007GL031347

    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., 216:549–564. doi:10.1016/S0012-821X(03)00549-1

    Wheat, C.G., Jannasch, H.W., Kastner, M., Plant, J.N., DeCarlo, E.H., and Lebon, G., 2004. Venting formation fluids from deep-sea boreholes in a ridge flank setting: ODP Sites 1025 and 1026. Geochem., Geophys., Geosyst., 5. doi:10.1029/2004GC000710

    Zühlsdorff, L., and Spiess, V., 2001. Modeling seismic reflection patterns from Ocean Drilling Program Leg 168 core density logs: insight into lateral variations in physical properties and sediment input at the eastern flank of the Juan de Fuca Ridge. J. Geophys. Res., 106B:16119–16134. doi:10.1029/2001JB900005

    Zühlsdorff, L., Spiess, V., Huebscher, C., and Breitzke, M., 1999. Seismic reflectivity anomalies in sediments a the eastern flank of the Juan de Fuca Ridge: evidence for fluid migration? J. Geophys. Res., 104:15351–15364. doi:10.1029/1999JB900061

Conferences (notify us)

    American Geophysical Union (AGU) Fall Meeting 2011

    Cowen, J.P., Lin, H., Jungbluth, S., Hsieh, C., Rappe, M., Glazer, B.T., Matzinger, M., Becker, K., Fisher, A.T., Amend, J.P., and Johnson, H.P., 2011. 1997 to Present: quality and versatile access to the deep biosphere with coupled advanced CORKs and fluid pumping systems [presented at the 2011 American Geophysical Union Fall Meeting, San Francisco, CA, 5–9 December 2011]. (Abstract OS11A-1460) http://www.agu.org/meetings/fm11/waisfm11.html

    Robador, A., and Cowen, J.P., 2011. Microbial sulfate reduction in basaltic fluids on the flanks of Juan de Fuca Ridge [presented at the 2011 American Geophysical Union Fall Meeting, San Francisco, CA, 5–9 December 2011]. (Abstract B51K-0554) http://www.agu.org/meetings/fm11/waisfm11.html

*Please send updates to PubCrd@iodp.tamu.edu.