Abstract
A comparison of late Neogene planktic foraminiferal biogeography and stable isotopic records of shallow dwelling and deep dwelling planktic foraminifera from DSDP sites 214 (Ninetyeast Ridge, northeast Indian Ocean) and 586B (Ontong-Java Plateau, western Equatorial Pacific) provides a clue to the nature of the ocean circulation in the tropical Indo-Pacific during early Pliocene.
The present study reveals that the late Neogene planktic foraminiferal data from the eastern and western sides of the Indonesian Seaway are very similar. The only distinct inter-ocean difference however is the absence of Pulleniatina spectabilis from the Indian Ocean. This species makes its first evolutionary appearance in the Equatorial Pacific at about 5.6 Ma (Early Gilbert reversed) and ranges up to 4.2 Ma (Top Cochiti subchron). The complete absence of Pulleniatina spectabilis from the Indian Ocean is attributed to blocking of westward flow of tropical waters of the Pacific to the Indian Ocean resulting in a major change in ocean circulation in the tropical Pacific and Indian oceans during 5.6 to 4.2 Ma.
In order to understand the nature of this blockage, isotopic depth ranking of selected planktic foraminifera was carried out which reveals that the Indonesian Seaway became an effective biogeographic barrier to deep dwelling planktic foraminifera and thus it may be interpreted that the shallow sills that mark the Seaway in modern times were present as early as 5.6 Ma.
The distribution of Pulleniatina spectabilis throughout the Equatorial Pacific reveals that Modern Equatorial Pacific Under Current (Cromwell Current) flowing towards east at a depth of 200–300 m (which is also the depth habitat of Pulleniatina spectabilis) was present at the beginning of the Pliocene (5.6 Ma).
As a sequel to the blocking of the Indonesian Seaway and the resultant interruption in the flow of central Equatorial Current System of the Pacific to the west there was an increase in the western Pacific Warm Pool Waters and strengthening of the gyral circulation in the Pacific and Indian Oceans. This eventually triggered the intensification of the Asian Monsoon System.
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References
Ali J R, Spencer J R and Hall R 1993 The closure of the Indo-Pacific Ocean Gateway: A new plate tectonic perspective; Proc. Int. Workshop on Neogene Evolution of Pacific Ocean Gateway, (Indonesia: Bandar Lampung) 10–20
Bandy O L 1968 Cycles in Neogene paleoceanography and eustatic changes; Paleogeography, Paleoclimatology and Paleoeology 5 63–73
Barton C E and Bloemendal J 1985 Paleomagnetism of sediments collected during Leg 90. Southwest Pacific In: Initial Repts. DSDP 90 1273–1316
Bé A W H 1977 An ecological, zoogeographic and taxonomic review of recent planktonic foraminifera; Oceanic Micropaleontology (ed) A T S Ramsay (London: Academic Press) 1 1–100
Berggren W A, Kent D V, Swisher C C III, Aubry M P 1995a A revised Cenozoic geochronology and chronostratigraphy; SEPM Special publication No. 54 129–212
Berggren W A, Hilgen F J, Lagereis C G, Obradovich J D, Raffi I, Raymao M E and Shacleton N J 1995b Late Neogene chronology: New perspective in high resolution stratigraphy; Geological Society of America Bull. 107(11) 1227–1287
Bradshaw J S 1959 Ecology of living planktonic foraminifera in the north and equatorial Pacific Ocean; Contributions to Cushman foundation for formniniferal research 10(2) 25–64
Bronnimann P and Resig J 1971 A Neogene globigerinacean biochronologic time scale for the southwest Pacific; Initial Reports of the Deep Sea Drilling Project 7(2) 1235–1469
Edwards A R 1975 Southwest Pacific Cenozoic paleogeography and integrated Neogene paleocirculation model; Initial Reports of the Deep Sea Drilling Project 30 667–684
Elmstorm K M and Kennett J P 1985 Late Neogene paleoceanographic evolution of site 590, Southwest Pacific; Initial Reports of the Deep Sea Drilling Project 90 1361–1381
Gasperi J T and Kennett J P 1992 Isotopic evidence for depth stratification and paleoecology of Miocene planktonic foraminifera: Western Equatorial Pacific DSDP site 289; Pacific Neogene, Environment, Evolution and Events (eds) Tsuchi and Ingle 117–147 (Tokyo University Press)
Gordon A L and Fine R A 1996 Pathways of water between the Pacific and Indian Oceans in the Indonesian Seas; Nature 379 146–149
Hays J D, Saito T, Opdyke N D and Burkle L H 1969 Pliocene and Pleistocene sediments of the equatorial Pacific: Their paleomagnetic, biostratigraphic and climatic record; Geological Society of America Bulletin 8 1481–1513
Ingle J C Jr 1967 Foraminiferal biofacies variation and the Miocene-Pliocene boundary in southern California; Bulletin of American Paleontology 52(236) 217–394
Jenkins D G and Gamson P 1994 Neogene planktonic foraminifera from Ocean Drilling Programme leg 121: Four sites on Broken ridge and Ninetyeast Ridge, Indian Ocean; Proc Int. Workshop on Neogene evolution of Pacific Ocean gateways 51–64 Bander Lampung Indonesia
Kaneps A G 1973 Cenozoic planktonic foraminifera from the eastern equatorial Pacific Ocean; Initial reports of the deep Sea drilling project 16 713–745
Keigwin L D Jr 1982 Neogene planktonic foraminifers from Deep sea Drilling Project Sites 502 and 503; Initial reports of the deep sea drilling project 68 269–288
Keigwin L D Jr 1976 Late Cenozoic planktonic foraminiferal biostratigraphy and paleoceanography of the Panama basin; Micmpaleontology 22 419–422
Keller G 1981a Planktonic foraminiferal fauna of the equatorial Pacific suggest Early Miocene origin of present ocean circulation; Marine Micropaleontology 6 269–295
Keller G 1981b Miocene bichronology and paleoceanography of the north Pacific; Marine Micropaleontology 6 535–551
Keller G 1985 Depth stratification of planktonic foraminifers in the Miocene ocean; The Miocene Ocean: Paleogeography and Biogeography; Geological Soc. Amer. Memoir 163 177–195
Kennett J P 1982 Marine Geology (Englewood Cliffs N J Prentice-Hall)
Kennett J P 1985 The Miocene Ocean: Paleogeography and Biogeography; Geological Society of America MemoiT 163
Kennett J P, Keller G and Srinivasan M S 1985 Miocene planktonic foraminiferal biogeography and paleoceanographic development of the Indo-Pacific region; The Miocene Ocean: Paleogeography and Biogeography; Geological Society of America Memoir 163 197–236
Kennett J P and Srinivasan M S 1983 Neogene Planktonic Foraminifera: A Phylogentic Atlas, (New York: Hutchinson Ross Publ. Co.)
Kennett J P and Vella P 1975 Late Cenozoic Planktonic Foraminifera and paleoceanography at DSDP site 284 in the cool subtropical southwest Pacific; Initial reports of the deep sea drilling project 29 769–800
Linthout K, Helmers H and Sopaheluwakan 1997 Late Miocene obduction and microplate migration around the southern Banda Sea and the closure of the Indonesian Seaway; Tectonophysics 281 17–30
Nishimura S and Suparka S 1997 Tectonic approach to the Neogene evolution of Pacific-India Ocean gateways; Tectonophyics 281 1–16
Orr W N and Jenkins D G 1980 Eastern equatorial pacific Pliocene-Pleistocene biostratigraphy; Memorial to O L Bandy (eds) Ingle et al Cushman Foundation Special Publ. 19, 278–286
Parker F L 1967 Late Tertiary biostratigraphy (Planktonic Foraminifera) of tropical Indo-Pacific deep sea cores; Bulletin of American paleontologists 52(235) 115–208
Romine K and Lombari G 1985 Evolution of the Pacific circulation in the Miocene: Radiolarian evidence from DSDP site 289; The Miocene Ocean: Paleogeography and Biogeography, Geological Society of America Memoir 163, 273–290
Saito T, Burkle L H and Hays J D 1975 Late Miocene to Pleistocene biostratigraphy of equatorial Pacific sediments Late Neogene Epoch boundaries (eels) Saito T and Burkle L H) 226–244 (New York: Micropaleontology Press)
Sinha D K and Srinivasan M S 1996 Late Neogene quantitative planktic foraminiferal biochronology and paleoceanography of DSDP site 588, Southwest Pacific; Contr. XV Indian Colloq. Micropal. and Strat. DehraDun 295–304
Srinivasan M S 1996 Oceanic Micropaleontology, Major advances since the beginning of DSDP Presidential Address, XV Indian Colloq. On Micropal. and Strat. Dehra Dun 34p
Srinivasan M S 1999 Paleoceanography: Evolution of oceans through the Cenozoic In: Ocean science trends and future directions (ed.) B L K Somayajulu INSA, Academia Books International 113–128
Srinivasan M S and Chaturvedi S N 1992 Neogene planktonic foraminiferal biochronology of the DSDP sites along Nine-tyeast Ridge, northern Indian Ocean In: Ishizaki and Saito (eels.) Centenary of Japanese Micropaleontology 175–178
Srinivasan M S and Singh A D 1991 Planktonic foraminiferal evidence for the Neogene paleoceanographic changes in the Indian Ocean 3rd Int. Symposium IGCP-246 Chiangmai Univ Thailand 179–205
Srinivasan M S and Sinha D K 1991 Improved correlation of the Late Neogene planktonic foraminiferal datums in the equatorial to cool subtropical DSDP sites, Southwest Pacific: Application of the Graphic correlation method; Mem. Geol. Soc. India No 20, pp 55–93
Srinivasan M S and Sinha D K 1992 Late Neogene planktonic foraminiferal events of the Southwest Pacific and Indian Oceans: A comparison; Pacific Neogene, Environment, Evolution and Events (eds) R Tsuchi and James C Ingle Jr (Japan: University of Tokyo Press) 203–220
Srinivasan M S and Sinha D K 1997 Ocean circulation changes in the tropical Indo-Pacific during 5.6-4.2 Ma: Paleobiogeographic and isotopic evidence Abst International Conference on Isotopes in the Solar System, PRL Ahmedabad 213
Srinivasan M S and Sinha D K 1998 Early pliocene closing of the Indonesian Seaway: Evidence from northeast Indian Ocean and Southwest Pacific deep sea cores; Journal of Asian Earth Sciences, Elsevier UK 16(1) 29–44
Vincent E and Berger W H 1981 Planktonic foraminifera and their use in paleoceanography in: (ed.) Emiliani C The oceanic lithosphere (New York: Wiley Interscience) 1025–1120
Wei Kuo Yen 1995 Southward shifting of the Tasman front at 4.4 Ma: paleobiogeographic and isotopic evidence Oji Seminar on “Neogene Evolution of Pacific ocean gateways” Kyoto, Japan, IGCP Project 355 (Abst.) 63
Zachariasse W J 1992 Neogene planktonic foraminifers from sites 761 and 762 off northwest Australia; Proc. Ocean Drilling Programme Scientific Results 122 665–675
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Srinivasan, M.S., Sinha, D.K. Ocean circulation in the tropical Indo-Pacific during early Pliocene (5.6-4.2 Ma): Paleobiogeographic and isotopic evidence. J Earth Syst Sci 109, 315–328 (2000). https://doi.org/10.1007/BF03549815
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DOI: https://doi.org/10.1007/BF03549815