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doi:10.2204/iodp.proc.330.104.2012

Background and objectives

• Objectives
• Operations
• Sedimentology
• Unit I
• Unit II
• Unit III
• Sediment in underlying volcanic sequence
• Interpretation of lithologies and lithofacies at Site U1373
• Paleontology
• Calcareous nannofossils
• Planktonic foraminifers
• Macrofossils
• Igneous petrology and volcanology
• Basaltic clasts in sedimentary Units I and III
• Lithologic and stratigraphic igneous units
• Interpretation of the igneous succession
• Alteration petrology
• Alteration phases
• Overall alteration characteristics
• Vesicle infillings
• Vein infillings
• Olivine alteration
• Glass and groundmass alteration
• Interpretation of alteration
• Structural geology
• Summary
• Geochemistry
• Igneous rocks
• Carbon, organic carbon, nitrogen, and carbonate
• Physical properties
• Whole-Round Multisensor Logger measurements
• Natural Gamma Radiation Logger
• Section Half Multisensor Logger measurements
• Moisture and density
• Compressional wave (P-wave) velocity
• Thermal conductivity
• Paleomagnetism
• Archive-half core remanent magnetization data
• Discrete sample remanent magnetization data
• Anisotropy of magnetic susceptibility
• Discussion
• Summary
• Microbiology
• Cell counts
• Culturing experiments
• Contamination testing
• Stable isotope addition bioassays
• References
• Figures
• F1. Bathymetric map of Louisville Seamount Trail.
• F2. Detailed bathymetric map of Site U1373.
• F3. Operation time vs. penetration depth.
• F4. Sedimentary stratigraphic summary.
• F5. Representative lithologies and lithofacies
• F6. Cement types and dissolution features.
• F7. Multicolor basalt breccia and fine-grained sediment.
• F8. Calcareous nannofossil and planktonic foraminiferal biozonation.
• F9. Close-up photographs of Flemingostrea sp.
• F10. Thin section photomicrographs of Flemingostrea sp.
• F11. Igneous stratigraphic summary.
• F12. Highly olivine-titanaugite-plagioclase-phyric basalt in Type 7 clast.
• F13. Strained olivine crystal.
• F14. Basaltic clast in conglomerate.
• F15. Jigsaw-fit clasts in basaltic breccia.
• F16. Highly olivine-titanaugite-phyric basalt from lava flow.
• F17. Peperitic top of Unit VII lava flow.
• F18. Groundmass alteration.
• F19. Secondary minerals.
• F20. Partly altered olivine.
• F21. Completely altered olivine.
• F22. XRD spectra for altered olivine phenocrysts.
• F23. XRD spectra for vugs, vesicles, and veins.
• F24. XRD spectra for composite banded veins.
• F25. XRD spectra for partially filled vugs.
• F26. XRD spectra for filled vugs.
• F27. Main alteration colors.
• F28. Alteration color distribution.
• F29. Secondary mineral distribution.
• F30. Vesicles.
• F31. Vesicles.
• F32. Veins.
• F33. Vein mineral distribution.
• F34. Number of structural features.
• F35. Geopetals.
• F36. Distribution of fractures.
• F37. Distribution of veins.
• F38. Flow alignment.
• F39. Dip angles of fractures, veins, and magmatic foliations.
• F40. Total alkalis vs. silica.
• F41. MgO vs. Al₂O₃, Na₂O, and CaO/Al₂O₃.
• F42. TiO₂ vs. P₂O₅, Y, Sr, and Ba.
• F43. Mg#, Ni, Fe₂O₃^T, and Zr/Ti.
• F44. Magnetic susceptibility.
• F45. Magnetic susceptibility for 35–50 mbsf.
• F46. Magnetite habit variations.
• F47. Bulk density and P-wave velocity.
• F48. NGR.
• F49. L*a*b* color reflectance.
• F50. MAD-C bulk density vs. porosity.
• F51. GRA bulk density vs. MAD-C bulk density.
• F52. Porosity and thermal conductivity.
• F53. MAD-C bulk density vs. P-wave velocity.
• F54. GRA bulk density vs. thermal conductivity.
• F55. Archive-half paleomagnetic data.
• F56. Downhole inclination and Zijderveld plots.
• F57. Bulk magnetic susceptibility vs. Königsberger ratio.
• F58. AF and thermal demagnetization results.
• F59. Inclination.
• F60. ChRM inclination.
• F61. Microbiology sample locations.
• F62. Microbiology whole-rounds samples.
• F63. Whole-round rock section cuts.
• Tables
• T1. Coring summary.
• T2. Basalt clast types.
• T3. Nannofossils.
• T4. Planktonic foraminifers.
• T5. ISCI.
• T6. Fresh olivine and glass.
• T7. Flow alignment textures.
• T8. Element compositions.
• T9. Moisture and density.
• T10. P-wave velocity.
• T11. Thermal conductivity.
• T12. Magnetic properties.
• T13. Anisotropy of magnetic susceptibility.
• T14. Inclination-only averages.

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