- Contents
- Title page
- Publisher's notes
- Abstract
- Schedule for Expedition 323
- Introduction
- Background
- Scientific objectives
- Coring and drilling strategy
- Logging/downhole measurements
strategy
- Research plan proposals (samples and data sharing)
- Acknowledgments
- References
- Tables
- Figures
- Site summaries
- Appendix figures
- AF1. Specific navigation map, Site BOW-12B.
- AF2. Close-up navigation map, Site BOW-12B.
- AF3. Swath bathymetric map, Site BOW-12B.
- AF4. Seismic profile, Site BOW-12B.
- AF5. Close-up seismic profile, Site BOW-12B.
- AF6. Seismic profile, Site BOW-12B.
- AF7. Seismic line, Site BOW-12B.
- AF8. 3.5 kHz subbottom profile survey, Site BOW-12B.
- AF9. Specific navigation map, Site BOW-14B.
- AF10. Close-up navigation map, Site BOW-14B.
- AF11. Swath bathymetric map, Site BOW-14B.
- AF12. 3.5 kHz subbottom profile survey, Site BOW-14B.
- AF13. Seismic profile, Site BOW-14B.
- AF14. Close-up seismic profile, Site BOW-14B.
- AF15. Seismic profile, Site BOW-14B.
- AF16. Close-up seismic profile, Site BOW-14B.
- AF17. Specific navigation map, Site BOW-15A.
- AF18. Close-up navigation map, Site BOW-15A.
- AF19. Seismic profile, Site BOW-15A.
- AF20. Close-up seismic profile, Site BOW-15A.
- AF21. Seismic profile, Site BOW-15A.
- AF22. Close-up seismic profile, Site BOW-15A.
- AF23. 3.5 kHz subbottom profile survey, Site BOW-15A.
- AF24. Swath bathymetric map, Site BOW-15A.
- AF25. Regional overview map, Sites GAT-3C and GAT-4C.
- AF26. Specific navigation map, Site GAT-4C.
- AF27. Close-up navigation map, Site GAT-4C.
- AF28. Seismic profile, Site GAT-4C.
- AF29. Close-up seismic profile, Site GAT-4C.
- AF30. Seismic profile, Site GAT-4C.
- AF31. Close-up seismic profile, Site GAT-4C.
- AF32. 3.5 kHz subbottom profile survey, Site GAT-4C.
- AF33. Swath bathymetric map, Site GAT-4C.
- AF34. Specific navigation map, Site GAT-3C.
- AF35. Close-up navigation map, Site GAT-3C.
- AF36. Seismic profile, Site GAT-3C.
- AF37. Seismic profile, Site GAT-3C.
- AF38. Close-up seismic profile, Site GAT-3C.
- AF39. Close-up seismic profile, Site GAT-3C.
- AF40. 3.5 kHz subbottom profile survey, Site GAT-3C.
- AF41. Swath bathymetric map, Site GAT-3C.
- AF42. Regional overview map, Site KST-1B.
- AF43. Seismic profile, Site KST-1B.
- AF44. Close-up seismic profile, Site KST-1B.
- AF45. Regional overview map, Sites SHR-3B and SHR-1B.
- AF46. Map of study area, Site SHR-1B.
- AF47. Map of study area, Site SHR-3B.
- AF48. Seismic profile, Site SHR-3B.
- AF49. Close-up seismic profile, Site SHR-3B.
- AF50. Seismic profile, Site SHR-1B.
- AF51. Close-up seismic profile, Site SHR-1B.
- AF52. Single-channel seismic profile, Sites UMK-3B and UMK-4D.
- AF53. Close-up seismic profile, Site UMK-4D.
- AF54. Single-channel seismic profile, Site UMK-4D.
- AF55. Track chart, Sites UMK-4D and UMK-3B.
- AF56. 3.5 kHz subbottom profile survey, Sites UMK-4D and UMK-3B.
- AF57. Swath bathymetric map, Sites UMK-4D and UMK-3B.
- AF58. Single-channel seismic profile, Site UMK-3B.
- AF59. Close-up seismic profile, Site UMK-3B.
- AF60. Track chart, Site NAV-1B.
- AF61. Seismic profile of CDP1139.
- AF62. Seismic profile of 1550Z.
- AF63. Minisparker profile.
- Expedition scientists and scientific participants
- PDF file
- Errata
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doi:10.2204/iodp.sp.323.2009
Site summaries (continued)
Site UMK-3B (Umnak Plateau): Pliocene–Pleistocene
Priority:
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Alternate
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Position:
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54°25.1′N 170°14.6′W (WGS 84)
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Water depth (m)
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1898
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Target drilling depth (mbsf):
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200
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Approved maximum penetration (mbsf):
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200
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Previous drilling in area:
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DSDP Site 185
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Comments:
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Relocated from Site UMK-3A to shot point 2617 on the Line 2 of Cruise L6-80 of USGS R/V Lee (EPSP December 2005)
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Survey coverage (track map, seismic profile); sediment cores:
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USGS R/V Lee Cruise L6-80 (1980):
• Single channel seismic: Line 2 and crossing Line 6, Shotpoint 721 (Figs. AF52, AF58, AF59)
• Seismic velocity: DSDP Site 185 measurement; ref. interval velocity by USGS R/V Lee Cruise L6-80, Line 6
R/V Hakuhou-maru Cruise KH99-3 Leg 3 (1999):
• Regional overview map with track line (Fig. AF55)
• 3.5 kHz
• Swath bathymetry (Fig. AF57)
• Piston core (9.6 m)
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Objective (see text for complete details):
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Monitor surface water exchange from the Pacific into the Bering Sea and surface conditions in the easternmost part of the Bering Sea.
Reconstruct Pliocene–Pleistocene high-resolution paleoceanography and investigate Bering/Arctic Gateway history and sea ice and water mass distribution, distal to Pacific water
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Drilling/coring program:
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Holes A, B, and D: APC with core orientation to 200 mbsf, Hole C to 25 mbsf
Temperature measurements: 3 APCT-3
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Downhole logging program:
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Wireline logging: triple combo, FMS-sonic
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Anticipated lithology:
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Hemipelagic silty clay with siliceous and calcareous microfossils. Estimated bottom age = Pliocene.
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