Proc. IODP, 334, Site U1379

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Chapter contents Background and objectives Operations Transit to Site U1379 Site U1379 Lithostratigraphy and petrology Description of units Basalt Tephra layers Carbonate fragments and concretions X-ray diffraction analysis Depositional environment Paleontology and biostratigraphy Calcareous nannofossils Foraminifers Structural geology Structures in slope sediments Structures in the basement Geochemistry and microbiology Geochemistry Microbiology Physical properties Density and porosity Magnetic susceptibility Natural gamma radiation P-wave velocity Thermal conductivity Downhole temperature Heat flow Vane shear Color spectroscopy Paleomagnetism Natural remanent magnetization Implications for core orientation Implication for magnetostratigraphy Paleomagnetic characterization of basement rocks Downhole logging Logging-while-drilling operations Gas monitoring with logging-while-drilling measurements Logging data quality Characterization of logging-while-drilling logs Logging units Borehole breakout analyses Core-log integration References Figures F1. Site location. F2. Seismic BGR99 Line 7. F3. Graphic summary log. F4. Core image, Unit I. F5. Core image, Subunit IIA. F6. Core image, Subunit IIB. F7. Core image, Subunit IIC. F8. Core image, Unit III. F9. Core image, Unit IV. F10. Unit IV/V boundary. F11. Moderately phyric plagioclase basalt. F12. Tephra layer. F13. X-ray diffractogram. F14. Biostratigraphic zonation. F15. Microfossil age-depth plot. F16. Bedding features vs. depth. F17. Bedding planes. F18. Slickensides. F19. Normal fault planes. F20. Healed normal fault. F21. Fractured and brecciated zones. F22. Sulfate, alkalinity, NH4, CH₄, and Ca. F23. Salinity, Cl, Ca, Mg, Na, K, alkalinity, and NH₄. F24. Ca vs. Mg. F25. Hydrocarbon concentration. F26. Hydrocarbon ratio. F27. Cell concentration, 0–250 mbsf. F28. Cell concentration, 0–45 mbsf. F29. Density and porosity. F30. Magnetic susceptibility. F31. Natural gamma radiation. F32. Compressional wave velocity. F33. Thermal data. F34. Temperature-time measurements. F35. Undrained shear strength. F36. Reflectance values. F37. Paleomagnetic measurements. F38. Declination variations. F39. Magnetization directions. F40. Declination and inclination. F41. Monitoring and control LWD logs. F42. LWD summary. F43. Narrow breakout borehole images. F44. LWD data and core measurements. F45. LWD data and core measurements. Tables T1. Operations summary. T2. Unit thickness. T3. Nannofossils. T4. Planktonic foraminifers. T5. Benthic foraminifers. T6. Interstitial water chemistry. T7. Gas geochemistry. T8. Carbon and nitrogen. T9. APCT-3 measurements. PDF file			Previous \| Next doi:10.2204/iodp.proc.334.104.2012 References Berggren, W.A, Hilgen, F.J., Langereis, C.G., Kent, D.V., Obradovich, J.D., Raffi, I., Raymo, M.E., and Shackelton, N.J., 1995a. Late Neogene chronology: new perspectives in high-resolution stratigraphy. Geol. Soc. Am. 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