Changes in Caribbean surface hydrography during the Pliocene shoaling of the Central American Seaway

Paleoceanography

Volumn 21, Issue 4, 2006, Pages

  Steph, Silke ^a,b   Tiedemann, Ralf ^b   Prange, Matthias ^c   Groeneveld, Jeroen ^a,c   Nürnberg, Dirk ^a   Reuning, Lars ^a,d   Schulz, Michael ^c   Haug, Gerald H ^e  

^a GEOMAR HELMHOLTZ CENTRE FOR OCEAN RESEARCH KIEL   (Germany)

^b ALFRED WEGENER INSTITUTE FOR POLAR AND MARINE RESEARCH   (Germany)

^c UNIVERSITY OF BREMEN   (Germany)

^d RWTH AACHEN UNIVERSITY   (Germany)

^e GFZ GERMAN RESEARCH CENTRE FOR GEOSCIENCES   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

EL NINO-SOUTHERN OSCILLATION; GYRE; HYDROGRAPHY; OCEAN DRILLING PROGRAM; PLANKTONIC FORAMINIFERA; PLIOCENE; SALINITY; WATER MASS;

ATLANTIC OCEAN; CARIBBEAN SEA; PACIFIC OCEAN; PACIFIC OCEAN (TROPICAL);

FORAMINIFERA;

EID: 34547203645     PISSN: 08838305     EISSN: None     Source Type: Journal    
DOI: 10.1029/2004PA001092     Document Type: Article

References (131)

1. Backman, J., and 1. Raffi (1997), Calibration of Miocene nannofossil events to orbital tuned cyclostratigraphy from Ceara Rise, Proc. Ocean Drill. Program Sci. Results, 154, 83-100.
2. Barker, S., M. Greaves, and H. Elderfield (2003), A study of cleaning procedures used for foraminiferal. Mg/Ca paleothermometry, Geochem. Geophys. Geosyst., 4(9), 8407, doi:10.1029/2003GC000559.
3. Berger, W. H., and G. Wefer (1996), Expeditions into the past: Paleoceanographic studies in the South Atlantic, in The South Atlantic: Present and Past Circulation, edited by G. Wefer et al., pp. 363-410, Springer, New York.
4. Berggren, W. A., and C. D. Hollister (1974), Paleogeography, paleobiogeography, and the history of circulation of the Atlantic Ocean, in Studies in Paleoceanography, edited by W. W Hay, Spec. Publ. Soc. Econ. Paleontol. Mineral., 20, 126-186.
5. Bickert, T., W. B. Curry, and G. Wefer (1997), Late Pliocene to Holocene (2.6-0 Ma) western equatorial Atlantic deep-water circulation: Inferences from benthic stable isotopes, Leg 154, Proc. Ocean Drill. Program Sci. Results, 154, 239-254.
6. Billups, K. (2002), Late Miocene through early Pliocene deep water circulation and climate change viewed from the subantarctic Southern Ocean, Palaeogeogr. Palaeoclimatol. Palaeoecol., 185, 287-307.
7. Billups, K., A. C. Ravelo, and J. C. Zachos (1997), Early Pliocene deep-water circulation: Stable isotope evidence for enhanced Northern Component Deep Water, Proc. Ocean Drill. Program Sci. Results, 154, 319-330.
8. Billups, K., A. C. Ravelo, and J. C. Zachos (1998), Early Pliocene deep water circulation in the western equatorial Atlantic: Implications for high-latitude climate change, Paleoceanography, 13, 84-95.
9. Billups, K., A. C. Ravelo, J. C. Zachos, and R. D. Norris (1999), Link between oceanic heat transport, thermolialine circulation, and the Intertropical Convergence Zone in the early Pliocene Atlantic, Geology, 27, 319-322.
10. Broecker, W S. (1989), The salinity contrast between the Atlantic and Pacific oceans during glacial time, Paleoceanography, 4, 207-212.
11. Broecker, W. S., and G. H. Denton (1999), The role of ocean-atmosphere reorganizations in glacial cycles, Geochim. Cosmochim. Acta, 53, 2465-2501.
12. Bryan, K. (1988), Efficient methods for finding the equilibrium climate of coupled ocean-atmosphere models, in Physically-Based Modelling and Simulation of Climate and Climatic Change-Part I, edited by M. E. Schlesinger, pp. 567-582, Springer, New York.
13. Bryan, K., and L. J. Lewis (1979), A water mass model of the world ocean, J. Geophys. Res., 84, 2503-2517.
14. Cannariato, K. G., and A. C. Ravelo (1997), Pliocene-Pleistocene evolution of eastern tropical Pacific surface water circulation and thermocline depth, Paleoceanography, 12, 805-820.
15. Chaisson, W. P., and A. C. Ravelo (1997), Changes in upper water-colurrin structure at site 925, Late Miocene-Pleistocene: Planktonic foraminifer assemblage and isotopic evidence, Proc. Ocean Drill. Program Sci. Results, 154 255-268.
16. Clement, A. C., R. Seager, and M. A. Cane (1999), Orbital controls on the El Niño/Southern Oscillation and the tropical climate, Paleoceanography, 14, 441-456.
17. Clement, A. C., R. Seager, and M. A. Cane (2000), Suppression of El Niño during the mid-Holocene by changes in the Earth's orbit, Paleoceanography, 15, 731-737.
18. Coates, A. G., J. B. C. Jackson, L. S. Collins, T. M. Cronin, H. J. Dowsett, L. M. Bybell, P. Jung, and J. A. Obando (1992), Closure of the Isthmus of Panama: The near-shore marine record of Costa Rica and western Panama, Geol. Soc. Am. Bull., 104, 814-828.
19. Collins, L. S., A. G. Coates, W. A. Berggren, M.-P. Aubry, and J. Zhang (1996), The late Miocene Panama Isthmian Strait, Geology, 24, 687-690.
20. Conkright, M. E., R. A. Locamini, H. E. Garcia, T. D. O'Brien, T. P. Boyer, C. Stephens, and J. I. Antonov (2002), World Ocean Atlas 2001: Objective analyses, data statistics, and figures [CD-ROM], documentation, 17 pp., Natl. Oceanogr. Data Cent., Silver Spring, Md. (Available at http://www.nodc.noaa.gov)
21. 2 changes and tropical sea surface temperatures, Paleoceanography, 6, 387-394.
22. Crowley, T. J. (1992), North Atlantic Deep Water cools the Southern Hemisphere, Paleoceanography, 7, 489-497.
23. Curry, W. B., et al. (1995), Proceedings of the Ocean Drilling Program Initial Report, vol. 154, Ocean Drill. Program, College Station, Tex.
24. Danabasoglu, G. (2004), A comparison of global ocean general circulation model solutions obtained with synchronous and accelerated integration methods, Ocean Modell., 7, 323-341.
25. Danabasoglu, G., J. C. McWilliams, and P. R. Gent (1996), Approach to equilibrium in accelerated global oceanic models, J. Clim., 9, 1092-1110.
26. Delaney, M. L. (1990), Miocene benthic foraminiferal Cd/Ca records: South Atlantic and western equatorial Pacific, Paleoceanography, 5, 743-760.
27. Dessier, A., and J. R. Donguy (1994), The sea-surface salinity in the tropical Atlantic between 10°S and 30°N: Seasonal and interannual variations (1977-1989), Deep Sea Res., Part I, 41, 81-100.
28. Dobson, M. D., G. R. Dickens, and D. K. Rea (1997), Terrigenous sedimentation at Ceara Rise, Proc. Ocean Drill. Program Sci. Results, 154, 465-473.
29. Dowsett, H. J., J. Barron, and R. Z. Poore (1996), Middle Pliocene sea surface temperatures: A global reconstruction, Mar. Micropaleontol., 27(114), 13-25.
30. Driscoll, N. W., and G. H. Haug (1998), A short circuit in the thermohaline circulation: A cause for Northern Hemisphere glaciation?, Science, 282, 436-438.
31. 18O-enrichment of planktonic foraminifera due to gametogenetic calcification below the euphotic zone, Science, 213, 1247-1250.
32. Duque-Caro, H. (1990), Neogene stratigraphy, paleoceanography and paleobiogeography in northwest South America and the evolution of the Panama Seaway, Palaeogeogr. Palaeoclimatol. Palaeoecol., 77, 203-234.
33. Fairbanks, R. G. M., and R. K. Matthews (1978), The marine oxygen isotope record in Pleistocene coral, Barbados, West Indies, Quat. Res., 10, 181-196.
34. Fairbanks, R. G., M. Sverdlove, R. Free, P. H. Wiebe, and A. W. H. Bé (1982), Vertical distribution and isotopic fractionation of living planktonic foraminifera from the Panama Basin, Nature, 298, 841-844.
35. Farrell, J. W., I. Raffi, T. R. Janecek, D. W. Murray, M. Levitan, K. A. Dadey, K. C. Emeis, M. Lyle, J. A. Flores, and S. Hovan (1995), Late Neogene sedimentation patterns in the eastern equatorial Pacific Ocean, Proc. Ocean Drill. Program Sci. Results, 138, 717-756.
36. Flohn, H. (1981), A hemispheric circulation asymmetry during late Tertiary, Geol. Rundsch., 70, 725-736.
37. Frank, M., N. Whiteley, S. Kasten, J. R. Hein, and K. O'Nions (2002), North Atlantic Deep Water export to the Southern Ocean over the past 14 Myr: Evidence from Nd and Ph isotopes in ferromanganese crusts, Paleoceanography, 17(2), 1022, doi:10.1029/2000PA000606.
38. Gagan, M., L. Ayliffe, D. Hopley, J. Cale, G. Mortimer, J. Chappell, M. McCulloch, and M. Head (1998), Temperature and surface ocean water balance of the mid-Holocene tropical western Pacific, Science, 279, 1014-1018.
39. Gregory-Wodzicki, K. M. (2000), Uplift history of the central and northern Andes: A review, Geol. Soc. Am. Bull., 112, 1091-1105.
40. Harris, S., and A. C. Mix (2002), Climate and tectonic influences on continental erosion in tropical South America, Geology, 30, 447-450.
41. Haug, G. H., and R. Tiedemann (1998), Effect of the formation of the Isthmus of Panama on Atlantic Ocean thermohaline circulation, Nature, 393, 673-676.
42. Haug, G. H., R. Tiedemann, R. Zahn, and A. C. Ravelo (2001a), Role of Panama uplift on oceanic freshwater balance, Geology, 29, 207-210.
43. Haug, G. H., K. A. Hughen, D. M. Sigman, L. C. Peterson, and U. Röhl (2001b), Southward migration of the Intertropical Convergence Zone through the Holocene, Science, 293, 1304-1308.
44. Hay, W. W. (1996), Tectonics and climate, Geol. Rundsch., 85, 409-437.
45. Hellweger, F. L., and A. L. Gordon (2002), Tracing Amazon River water into the Caribbean Sea, J. Mar. Res., 60(4), 537-549.
46. Hemleben, C., and M. Spindler (1983), Recent advances in research on living planktonic foraminifera, in Reconstruction of Marine Paleoenvironments, edited by J. E. Meulenkamp, Utrecht Micropaleontol. Bull., 30, 141-170.
47. Hoorn, C., J. Guerrero, G. A. Sarmiento, and M. A. Lorente (1995), Andean tectonics as a cause for changing drainage patterns in Miocene South America, Geology, 23, 237-240.
48. Hovan, S. A. (1995), Late Cenozoic atmospheric circulation intensity and climatic history recorded by aeolian deposition in the eastern equatorial Pacific, Leg 138, Proc. Ocean Drill. Prog,ram Sci. Results, 138, 615-625.
49. Huber, M., and R. Caballero (2003), Eocene El Niño: Evidence for robust tropical dynamics in the "hothouse", Science, 299, 877-881.
50. Huber, M., and L. C. Sloan (2001), Heat transport, deep waters, and thermal gradients: Coupled simulation of an Eocene greenhouse climate, Geophys. Res. Lett., 28, 3481-3484.
51. Huber, M., L. C. Sloan, and C. Shellito (2003), Early Paleogene oceans and climate: A fully coupled modelling approach using NCAR's CSM, in Causes and Consequences of Globally Warm Climates in the Early Paleogene, edited by S. L. Wing et al., Spec. Pap. Geol. Soc. Am., 369, 25-47.
52. Hut, G. (1987), Stable isotope reference samples for geochemical and hydrological investigations, report to the Director General, 42 pp., Int. At. Energy Agency, Vienna.
53. Johns, W. E., T. L. Townsend, D. M. Fratantoni, and W. D. Wilson (2002), On the Atlantic inflow to the Caribbean Sea, Deep Sea Res., Part I, 49, 211-243.
54. Jousaumme, S., R. Sadourny, and C. Vignal (1986), Origin of precipitating water in a numerical simulation of the July climate, Ocean Air Interact., 1, 43-56.
55. Kameo, K., and T. J. Bralower (2000), Neogene calcareous nannofossil biostratigraphy of sites 998, 999, and 1000, Caribbean Sea, Proc. Ocean Drill. Program Sci. Results, 165, 3-17.
56. Keigwin, L. D. (1982), Isotopic paleoceanography of the Caribbean and east Pacific: Role of Panama uplift in late Neogene time, Science, 217, 350-352.
57. Keller, G., and J. A. Barron (1983), Paleoceanographic implications of Miocene deep-sea hiatuses, Geol. Soc. Am. Bull., 94, 590-613.
58. Kemle-von-Mücke, S., and H. Oberhänsli (1999), The distribution of living planktic foraminifera in relation to southeast Atlantic oceanography, in Use of Proxies in Paleoceanography: Examples From the South Atlantic, edited by G. Fischer and G. Wefer, pp. 91-115, Springer, New York.
59. King, T. A., W. G. Ellis Jr., D. W. Murray, N. J. Shackleton, and S. Harris (1997), Miocene evolution of carbonate sedimentation at the Ceara Rise: A multivariate data/proxy approach, Proc. Ocean Drill. Program Sci. Results, 154, 349-365.
60. Klocker, A., M. Prange, and M. Schulz (2005), Testing the influence of the Central American Seaway on orbitally forced Northern Hemisphere glaciation, Geophys. Res. Lett., 32, L03703, doi:10.1029/ 2004GL021564.
61. Kroon, D., T. V. Williams, C. Pirmez, S. Spezaferri, T. Sato, and J. D. Wright (2000), Coupled bio-cyclostratigraphy of site 1006: Evidence for orbitally induced carbonate platform production during the Mio- and Pliocene, Proc. Ocean Drill. Program Sci. Results, 166, 155-166.
62. Kutzbach, J. E., and P. J. Guetter (1986), The influence of changing orbital parameters and surface boundary conditions on climate simulations for the past 18,000 years, J. Atmos. Sci., 43(16), 1726-1759.
63. Larsen, J. C. (1992), Transport and heat flux of the Florida Current at 27°N derived from the cross-steam voltages and profiling data: Theory and observation, Philos. Trans. R. Soc. London, 338, 169-236.
64. Laskar, J., F. Joutel, and F. Boudin (1993), Orbital, precessional, and insolation quantities for the Earth from -20 Myr to +10 Myr, Astron. Astrophys., 270, 522-533.
65. Leaman, K. D., P. S. Vertes, L. P. Atkinson, T. N. Lee, P. Hamilton, and E. Waddell (1995), Transport, potential vorticity, and current/ temperature structures across Northwest Providence and Santaren Channels and the Florida Current off Cay Sal Bank, J. Geophys. Res., 100, 8561-8570.
66. Lear, C. H., Y. Rosenthal, and J. D. Wright (2003), The closing of a seaway: Ocean water masses and global climate change, Earth Planet. Sci. Lett., 210, 425-437.
67. Levitus, S., and T. P. Boyer (1994), World Ocean Atlas 1994, vol. 4, Temperature, NOAA Atlas NESDIS, vol. 4, 99 pp., NOAA, Silver Spring, Md.
68. Levitus, S., R. Burgett, and T. P. Boyer (1994), World Ocean Atlas 1994, vol. 3, Salinity, NOAA Atlas NESDIS, vol. 3, 99 pp., NOAA, Silver Spring, Md.
69. 18O records, Paleoceanography, 20, PA 1003, doi:10.1029/2004PA001071.
70. Lohmann, G. P. (1995), A model for variations in the chemistry of planktonic foraminifera due to secondary calcification and selective dissolution, Paleoceanography, 10, 445-457.
71. Maier-Reimer, E., U. Mikolajewicz, and K. Hasselmann (1990), Ocean general circulation model sensitivity experiments with an open Central American Isthmus, Paleoceanography, 5, 349-366.
72. Marshall, L. G. (1988), Land mammals and the great American interchange, Am. Sci., 76, 380-388.
73. McGlone, M., A. P. Kirshaw, and V. Margraf (1992), El Niño/Southern Oscillation climatic variability in Australasian and South American paleoenvironmental records, in El Niño: Historical and Paleoclimatic Aspects of the Southern Oscillation, edited by H. Diaz and V. Margraf, pp. 435-462, Cambridge Univ. Press, New York.
74. McIntyre, A., W. Ruddiman, K. Karlin, and A. C. Mix (1989), Glacial North Atlantic 18,000 years ago: A CLIMAT reconstruction, in Investigations of Late Quaternary Paleoceanography and Paleoclimatology, edited by H. J. Cline et al., pp. 43-76, Geol. Soc. of Am., Boulder, Colo.
75. Mikolajewicz, U., and T. J. Crowley (1997), Response of a coupled ocean/ energy balance model to restricted flow through the Central American Isthmus, Paleoceanography, 12, 429-441.
76. Mix, A. C., and W. F. Ruddiman (1984), Oxygen-isotope analyses and Pleistocene ice volumes, Quat. Res., 21, 1-20.
77. Mix, A. C., N. G. Pisias, W. Rugh, J. Wilson, A. Morey, and T. K. Hagelberg (1995), Benthic foraminifer stable isotope record from site 849 (0-5 Ma): Local and global climate changes, Proc. Ocean Drill. Program Sci. Results, 138, 371-412.
78. Mix, A. C., et al. (2003), Proceedings of the Ocean Drilling Program Initial Report, vol. 202, Ocean Drill. Program, College Station, Tex.
79. Molinari, R., E. Johns, and J. F. Festa (1990), The annual cycle of meridional heat flux in the Atlantic Ocean at 26.5°N, J. Phys. Oceanogr., 20, 476-482.
80. Molnar, P., and M. A. Cane (2002), El Niño's tropical climate and teleconnections as a blue-print for pre-Ice Age climates, Paleoceanography, 17(2), 1021, doi:10.1029/2001PA000663.
81. Montgomery, D. R., G. Balco, and S. D. Willett (2001), Climate, tectonics, and the morphology of the Andes, Geology, 29, 579-582.
82. Mulitza, S., B. Donner, G. Fischer, A. Paul, J. Pätzold, C. Rühlemann, and M. Segl (2004), The South Atlantic oxygen-isotope record of planktic foraminifera, in The South Atlantic in the Late Quaternary: Reconstruction of Mass Budget and Current Systems, edited by G. Fischer and G. Wefer, pp. 121-142, Springer, New York.
83. Müller-Karger, F. E., C. R. McClain, T. R. Fisher, W. E. Esaias, and R. Varela (1989), Pigment distribution in the Caribbean Sea: Observations from space, Prog. Oceanogr, 23, 23-64.
84. Niebler, H.-S., H.-W. Hubberten, and R. Gersonde (1999), Oxygen isotope values of planktic foraminifera: A tool for the reconstruction of surface water stratification, in Use of Proxies in Paleoceanography, edited by G. Fischer and G. Wefer, pp. 165-189, Springer, New York.
85. Nisancioglu, K. H., M. E. Raymo, and P. H. Stone (2003), Reorganization of Miocene deep water circulation in response to the shoaling of the Central American Seaway, Paleoceanography, 18(1), 1006, doi:10.1029/2002PA000767.
86. Not, D., and S. van Gorder (2003), Did an open Panama Isthmus correspond to an invasion of Pacific water into the Atlantic?, J. Phys. Oceanogr., 33, 1324-1336.
87. Norris, R. D. (1998), Miocene-Pliocene surface water hydrography of the eastern equatorial Atlantic, Proc. Ocean Drill. Program Sci. Results, 159, 539-555.
88. Nürnberg, D. (2000), Taking the temperature of past ocean surfaces, Science, 289, 1698-1699.
89. Nürnberg, D., J. Bijma, and C. Hemleben (1996), Assessing the reliability of magnesium in foraminiferal calcite as a proxy for water mass temperatures, Geochim. Cosmochim. Acta, 60, 803-814.
90. K′ oxygen isotopes, and foraminiferal transfer function, Paleoceanography, 15, 124-134.
91. Nürnberg, D., et al. (2002), Rapid climate changes in the western tropical Atlantic - Assessment of the biogenous and sedimentary record, R/V Sonne Cruise Rep. SO 164, 151 pp., GEOMAR, Kiel, Germany.
92. O'Neil, J. R., R. N. Clayton, and T. K. Mayeda (1969), Oxygen isotope fractionation in divalent metal carbonates, J. Chem. Phys., 51, 5547-5559.
93. Ottens, J. J. (1992), Spatial dynamics of planktic foraminifera in the northeast Atlantic, in Planktonic Foraminifera as Indicators of Ocean Environments in the Northeastern Atlantic, edited by J. J. Ottens, pp. 109-147, Acad. Proefschr., Vrije Univ. Amsterdam, Amsterdam.
94. Paillard, D., L. Labeyrie, and P. Yiou (1996), Macintosh program performs time-series analysis, Eos Trans. AGU, 77, 379.
95. Peltier, W. R., and L. P. Solheim (2004), The climate of the Earth at Last Glacial Maximum: Statistical equilibrium state and a mode of internal variability, Quat. Sci. Rev., 23, 335-357.
96. Philander, S. G. H. (1990), El Niño, La Niña and the Southern Oscillation, 293 pp., Academic, Elsevier, New York.
97. Philander, S. G. H., and A. V. Fedorov (2003), Role of tropics in changing the response to Milankovich forcing some three million years ago, Paleoceanography, 18(2), 1045, doi:10.1029/2002PA000837.
98. Philander, S. G. H., and R. C. Pacanowski (1986), A model of the seasonal cycle in the tropical Atlantic, J. Geophys. Res., 91, 14,192-14,206.
99. Philander, S. G. H., D. Gu, D. Halpern, G. Lambert, N. C. Lau, T. Li, and R. C. Pacanowski (1996), Why the ITCZ is mostly north of the equator, J. Clim., 9, 2958-2972.
100. Prange, M. (2006), The low-resolution CCSM2 revisited: Adjustments and a present-day control run, Ocean Sci. Discuss., 3, 1293-1348.
101. Prange, M., and M. Schulz (2004), A coastal upwelling seesaw in the Atlantic Ocean as a result of the closure of the Central American Seaway, Geophys. Res. Lett., 31, L17207, doi:10.1029/2004GL020073.
102. Raffi, I., and J. A. Flores (1995), Pleistocene through Miocene calcareous nannofossils from the eastern equatorial Pacific Ocean (Leg 138), Proc. Ocean Drill. Program Sci. Results, 138, 233-282.
103. Raymo, M. E., B. Grant, M. Horowitz, and G. H. Rau (1996), Mid-Pliocene warmth: Stronger greenhouse and stronger conveyor, Mar. Micropaleontol., 27, 313-326.
104. Reuning, L. (2005), The origin of sub-Milankovitch cycles in early Pliocene carbonate platform sediment: Bahamas vs. Maldives, Ph.D. thesis, 114 pp., Univ. of Kiel, Kiel, Germany.
105. Reuning, L., J. J. G. Reijmer, C. Betzler, P. Swart, and T. Bauch (2005), The use of paleoccanographic proxies in carbonate periplatform settings - Opportunities and pitfalls, Sediment. Geol., 175, 131-152.
106. Reuning, L., J. J. G. Reijmer, C. Betzler, A. Timmermann, and S. Steph (2006), Sub-Milankovitch cycles in periplatform carbonates from the early Pliocene Great Bahama Bank, Paleoceanography, 21, PA1017, doi:10.1029/2004PA001075.
107. Rodbell, D. T., G. O. Seltzer, D. M. Andreson, M. A. Abbott, D. B. Enfield, and J. H. Newman (1999), An ∼15,000 year record of El Niño-driven alluviation in southwestern Ecuador, Science, 283, 516-520.
108. Savin, S. M., and R. G. Douglas (1985), Sea level, climate, and the Central American Land Bridge, in The Central American Land Bridge, edited by F. G. Stehli and S. D. Webb, pp. 303-324, Springer, New York.
109. Schmuker, B., and R. Schiebel (2002), Planktic foraminifers and hydrography of the eastern and northern Caribbean Sea, Mar. Micropaleontol., 46, 387-403.
110. Schott, F. A., T. N. Lee, and R. Zantopp (1988), Variability of structure and transport of the Florida Current in the period range of days to seasonal, J. Phys. Oceanogr., 18, 1209-1230.
111. Shackleton, N. J. (1974), Attainment of isotopic equilibrium between ocean water and the benthonic foraminifera genus Uvigerina: Isotopic changes in the ocean during the last glacial, Colloq. Int. C. N. R. S, 219, 203-210.
112. Shackleton, N. J., and M. A. Hall (1984), Oxygen and carbon isotope stratigraphy of Deep Sea Drilling Project Hole 552A: Plio-Pleistocene glacial history, Initial. Rep. Deep Sea Drill. Proj., 8, 599-629.
113. Shackleton, N. J., and M. A. Hall (1997), The late Miocene stable isotope record, site 926, Proc. Ocean Drill. Program Sci. Results, 154, 367-373.
114. Shackleton, N. J., M. A. Hall, and D. Pate (1995), Pliocene stable isotope stratigraphy of site 846, Proc. Ocean Drill. Program Sci. Results, 138, 337-353.
115. Sigurdsson, H., et al. (1997), Proceedings of the Ocean Drilling Program Initial Report, vol. 165, Ocean Drill. Program, College Station, Tex.
116. Spero, H. J., K. M. Mielke, E. M. Kalve, D. W. Lea, and D. K. Pak (2003), Multispecies approach to reconstructing eastern equatorial Pacific thermocline hydrography during the past 360 kyr, Paleoceanography, 18(1), 1022, doi:10.1029/2002PA000814.
117. Steph, S. (2005), Pliocene stratigraphy and the impact of Panama uplift on changes in Caribbean and tropical east Pacific upper ocean stratification (6-2.5 Ma), Ph.D. thesis, 158 pp., Univ. of Kiel, Kiel, Germany.
118. Steph, S., R. Tiedemann, J. Groeneveld, A. Sturm, and D. Nürnberg (2006), Pliocene changes in tropical east Pacific upper ocean stratification: Response to tropical gateways?, Proc. Ocean Drill. Program Sci. Results, 202, 1-51, doi:10.2973/ odp.proc.sr.202.211.2006.
119. Tiedemann, R., and S. O. Franz (1997), Deep-water circulation, 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, 299-318.
120. Tiedemann, R., M. Sarnthein, and R. Stein (1989), Climatic changes in the western Sahara: Paleo-marine sediment record of the last 8 million years (sites 657-661), Proc. Ocean Drill. Program Sci. Results, 108, 241-277.
121. 18O and dust flux records of Ocean Drilling Program site 659, Paleoceanography, 9, 619-638.
122. Tiedemann, R., et al. (2006), Astronomically calibrated timescales from 6 to 2.5 Ma, and benthic isotope stratigraphies of sites 1236, 1237, 1239, and 1241, Ocean Drill. Program Sci. Results, in press.
123. Tudhope, A. W., C. P. Chilcott, M. T. McCulloch, E. R. Cook, J. Chappell, R. M. Ellarn, D. W. Lea, J. M. Lough, and G. B. Shimmield (2001), Variability in the El Niño-Southern Oscillation through a glacial-interglacial cycle, Science, 291, 1511-1516.
124. Von der Heydt, A., and H. A. Dijkstra (2006), Effect of ocean gateways on the global ocean circulation in the late Oligocene and early Miocene, Paleoceanography, 21, PA1011, doi:10.1029/2005PA001149.
125. Wang, D. (2001), A note on using the accelerated convergence method in climate models, Tellus, Ser. A, 53, 27-34.
126. Webb, S. D. (1985), Late Cenozoic mammal dispersals between the Americas, in The Great American Biotic Interchange, edited by F. G. Stehli and S. D. Webb, pp. 357-386, Springer, New York.
127. Whitehead, J. M., and S. M. Bohaty (2003), Pliocene summer sea surface temperature reconstruction using silicoflagellates from Southern Ocean ODP Site 1165, Paleoceanography, 18(3), 1075, doi:10.1029/ 2002PA000829.
128. Woodruff, F., and S. Savin (1989), Miocene deepwater oceanography, Paleoceanography, 4, 87-140.
129. Wright, J. D., and K. G. Miller (1996), Control of North Atlantic Deep Water circulation by the Greenland-Scotland Ridge, Paleoceanography, 11, 157-170.
130. Wüst, G. (1964), Stratification and Circulation in the Antillean-Caribbean Basins, Part 1: Spreading and Mixing ofthe Water Types With an Oceanographic Atlas, Columbia Univ. Press, New York.
131. Yoshimori, M., T. F. Stocker, C. C. Raible, and M. Renold (2005), Externally forced and internal variability in ensemble climate simulations of the Maunder Minimum, J. Clim., 18, 4253-4270.