A Pliocene‐Pleistocene stack of 57 globally distributed benthic δ18O records

Paleoceanography - Tập 20 Số 1 - 2005
L. E. Lisiecki1, Maureen E. Raymo2
1Department of Geological Sciences, Brown University, Providence, Rhode Island, USA
2Department of Earth Sciences Boston University Boston Massachusetts USA

Tóm tắt

We present a 5.3‐Myr stack (the “LR04” stack) of benthic δ18O records from 57 globally distributed sites aligned by an automated graphic correlation algorithm. This is the first benthic δ18O stack composed of more than three records to extend beyond 850 ka, and we use its improved signal quality to identify 24 new marine isotope stages in the early Pliocene. We also present a new LR04 age model for the Pliocene‐Pleistocene derived from tuning the δ18O stack to a simple ice model based on 21 June insolation at 65°N. Stacked sedimentation rates provide additional age model constraints to prevent overtuning. Despite a conservative tuning strategy, the LR04 benthic stack exhibits significant coherency with insolation in the obliquity band throughout the entire 5.3 Myr and in the precession band for more than half of the record. The LR04 stack contains significantly more variance in benthic δ18O than previously published stacks of the late Pleistocene as the result of higher‐resolution records, a better alignment technique, and a greater percentage of records from the Atlantic. Finally, the relative phases of the stack's 41‐ and 23‐kyr components suggest that the precession component of δ18O from 2.7–1.6 Ma is primarily a deep‐water temperature signal and that the phase of δ18O precession response changed suddenly at 1.6 Ma.

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Tài liệu tham khảo

10.1029/2003PA000942

10.1016/S0031-0182(01)00494-1

10.1038/346456a0

10.1016/0012-821X(94)90244-5

10.1016/0277-3791(91)90033-Q

Berger W. H., 1993, Quaternary oxygen isotope record of pelagic foraminifers: Site 806, Ontong Java Plateau, Proc. Ocean Drill. Program Sci. Results, 130, 381

10.1007/978-3-642-80353-6_30

Bickert T., 1997, Late Pliocene to Holocene (2.6–0 Ma) western equatorial Atlantic deep‐water circulation: Inferences from benthic stable isotopes, Proc. Ocean Drill. Program Sci. Results, 154, 239

10.1029/97PA02995

10.1029/2003PA000974

10.1029/94JB03098

10.1029/94PA02290

10.1126/science.274.5289.943

Curry W. B., 1989, Oxygen and carbon isotopic variation in Pliocene benthic foraminifers in, Proc. Ocean Drill. Program Sci. Results, 138, 157

10.1029/92PA00420

10.1038/nature02599

10.1029/1999PA000430

Franz S.‐O.(1999) Pliozäne Zeitreihen zur Rekonstruktion der Tiefenwasserzirkulation und der siliziklastischen Amazonasfracht im äquatorialen Westatlantik (Ceara Schwelle ODP Leg 154) Rep. 84 Geomar Kiel Germany.

10.1038/366552a0

10.1007/978-3-642-58646-0_2

10.1038/35090552

Harris S. E., 2002, Data report: Late Pliocene‐Pleistocene carbon and oxygen stable isotopes from benthic foraminifers at Ocean Drilling Program Site 1123 in the southwest Pacific, Proc. Ocean Drill. Program Sci. Results, 181, 1

10.1038/31447

10.1126/science.1059209

10.1029/AR056p0265

10.1016/S0012-821X(01)00430-7

Hodell D. A., 2003, Data report: Oxygen isotope stratigraphy of ODP Leg 177 Sites 1088, 1089, 1090, 1093, and 1094, Proc. Ocean Drill. Program Sci. Results, 177, 1

10.1029/91PA00559

10.1029/2002PA000857

10.1126/science.207.4434.943

Imbrie J., 1984, Milankovitch and Climate, Part 1, 269

10.1029/92PA02253

G. M. Jenkins D. G. Watts 1968 Holden‐Day Boca Raton Fla.

10.1016/S0031-0182(03)00259-1

Johnsen S. J., 1992, Irregular glacial interstadials recorded in a new Greenland ice core, Nature, 364, 218

10.1029/2001PA000667

10.1029/2001GC000283

Laskar J., 1993, Orbital, precessional and insolation quantities for the Earth from −20 Myr to +10 Myr, Astron. d Astrophys., 270, 522

10.1029/2001PA000733

10.1029/96PA01125

10.1016/S0921-8181(02)00186-8

10.1029/1998PA900005

10.1029/2000PA000526

10.1126/science.283.5404.971

10.1029/90PA02303

Mix A. C., 1995, Benthic foraminiferal stable isotope stratigraphy from Site 846: 0–1.8 Ma, Proc. Ocean Drill. Program Sci. Results, 138, 839

Mix A. C., 1995, Benthic foraminifer stable isotope record from Site 849 (0–5 Ma): Local and global climate changes, Proc. Ocean Drill. Program Sci. Results, 138, 371

10.1029/1999PA000457

10.1016/0012-821X(75)90156-9

10.1029/PA005i001p00043

10.1126/science.279.5355.1335

Pierre C., 2001, Stable isotope record of the last 500 k.y. at Site 1087 (Southern Cape Basin), Proc. Ocean Drill. Program Sci. Results, 175, 1

10.1016/0025-3227(84)90009-4

10.1029/PA005i002p00147

10.1029/PA001i002p00137

10.1029/97PA01169

Raymo M. E., 1986, Plio‐Pleistocene paleoceanography of the North Atlantic at Deep Sea Drilling Project Site 609, Initial Rep. Deep Sea Drill. Proj., 94, 895

10.1029/PA004i004p00413

10.1016/0012-821X(90)90051-X

10.1029/92PA01609

10.1029/97PA01019

10.1029/2003PA000921

10.1029/PA004i004p00353

10.1029/93PA03301

Shackleton N. J., 1995, Paleoclimate and Evolution, With Emphasis on Human Origins, 242

Shackleton N. J., 1984, Oxygen and carbon isotope stratigraphy of DSDP Hole 552A: Plio‐Pleistocene glacial history, Initial Rep. Deep Sea Drill. Project, 81, 599

10.1029/GM032p0303

10.1017/S0263593300020782

Shackleton N. J., 1995, Pliocene stable isotope stratigraphy of ODP Site 846, Proc. Ocean Drill. Program Sci. Results, 138, 337

Shackleton N. J., 1995, A new late Neogene time scale: Application to Leg 138 sites, Proc. Ocean Drill. Program Sci. Results, 138, 73

10.1029/2000PA000513

10.1016/S0025-3227(03)00127-0

10.1016/0016-7037(93)90416-T

10.1016/S0012-821X(02)00923-8

Tiedemann R.(1991) Acht Millionen Jahre Klimageschichte von Nordwest Afrika und Paläo‐Ozeanographie des angrenzenden Atlantiks Ber. Rep. 46 190 pp. Geol.‐Paläontol. Inst. und Mus. Christian‐Albrechts‐Univ. Kiel Germany.

Tiedemann R., 1997, Deep‐water cicurlation, chemistry, and terrigenous sediment supply in the equatorial Atlantic during the Pliocene, 3.3–2.6 Ma and 5–4.5 Ma, Proc. Ocean Drill. Program Sci. Results, 154, 299

10.1029/94PA00208

10.1016/S0031-0182(01)00496-5

10.1029/1998PA900013

10.1038/35089060

10.1016/0031-0182(88)90008-9

10.1029/1999PA900027

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Paleoceanography

Tập 20 Số 1

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