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Marine Reservoir Correction for the Cocos (Keeling) Islands, Indian Ocean

  • Quan Hua (a1), Colin D Woodroffe (a2), Mike Barbetti (a3), Scott G Smithers (a4), Ugo Zoppi (a1) and David Fink (a1)...

Abstract

Known-age corals from the Cocos (Keeling) Islands, Indian Ocean, have been analyzed by accelerator mass spectrometry (AMS) for radiocarbon to determine marine reservoir age corrections. The ΔR value for the Cocos (Keeling) Islands is 66 ± 12 yr based on the analyses undertaken for this study. When our AMS and previously published dates for Cocos are averaged, they yield a ΔR of 64 ± 15 yr. This is a significant revision of an earlier estimate of the ΔR value for the Cocos (Keeling) Islands of 186 ± 66 yr (Toggweiler et al. 1991). The (revised) lower ΔR for the Cocos (Keeling) Islands is consistent with GEOSECS 14C data for the Indian Ocean, and previously published bomb 14C data for the Red Sea, Gulf of Aden, and Cocos Islands. The revised ΔR is also close to values for the eastern Indian Ocean and adjacent seas. These suggest surface waters that reach the Cocos Islands might be partly derived from the far western Pacific, via the Indonesian throughflow, and might not be influenced by the southeast flow from the Arabian Sea.

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Copyright

Corresponding author

Corresponding author. Email: qhx@ansto.gov.au.

References

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Bowman, GM. 1985. Revised radiocarbon oceanic reservoir correction for southern Australia. Search 16:164–5.
Bowman, GM, Harvey, N. 1983. Radiocarbon dating marine shells in South Australia. Australian Archaeology 17:113–23.
Cember, RP. 1989. Bomb radiocarbon in the Red Sea: a medium scale gas exchange experiment. Journal of Geophysical Research 94:2111–23.
Fieux, M, Andrie, C, Delecluse, P, Ilahude, AG, Kartavtseff, A, Mantisi, F, Molcard, R, Swallow, JC. 1994. Measurements within the Pacific-Indian oceans flowthrough region. Deep Sea Research 41:1091–130.
Fink, D, Hotchkis, MAC, Hua, Q, Jacobsen, GE, Smith, AM, Zoppi, U, Child, D, Mifsud, C, van der Gaast, HA, Williams, AA, Williams, M. Forthcoming. The ANTARES AMS Facility at ANSTO. Nuclear Instruments and Methods in Physics Research B.
Gillespie, R. 1977. Sydney University natural radiocarbon measurements IV. Radiocarbon 19:101–10.
Gillespie, R, Polach, HA. 1979. The suitability of marine shells for radiocarbon dating of Australian prehistory. In: Berger, R, Suess, HE, editors. Radiocarbon Dating. Proceedings of the 9th International 14C Conference. Berkeley: University of California Press. p 404–21.
Hua, Q, Jacobsen, GE, Zoppi, U, Lawson, EM, Williams, AA, Smith, AM, McGann, MJ. 2001. Progress in radiocarbon target preparation at the ANTARES AMS Centre. Radiocarbon 43(2A):275–82.
Kench, P. 1994. Hydrodynamic observations of the Cocos (Keeling) Islands Lagoon. Atoll Research Bulletin 408:121.
Lawson, EM, Elliott, G, Fallon, J, Fink, D, Hotchkis, MAC, Hua, Q, Jacobsen, GE, Lee, P, Smith, AM, Tuniz, C, Zoppi, U. 2000. AMS at ANTARES—the first 10 years. Nuclear Instruments and Methods in Physics Research B 172:95–9.
Moore, MD, Schrag, DP, Kashgarian, M. 1997. Coral radiocarbon constraints on the source of the Indonesian throughflow. Journal of Geophysical Research 102(C6):12,35965.
Reimer, PJ, Reimer, RW. 2001. A marine reservoir correction database and on-line interface. Radiocarbon 43(2A):461–3. URL: http://www.calib.org/.
Smithers, SG, Woodroffe, CD. 2000. Microatolls as sea-level indicators on a mid-ocean atoll. Marine Geology 168:6178.
Smithers, SG, Woodroffe, CD. 2001. Coral microatolls and 20th century sea level in the eastern Indian Ocean. Earth and Planetary Science Letters 191:173–84.
Southon, J, Kashgarian, M, Fontugne, M, Metivier, B, Yim, W. 2002. Marine reservoir corrections for the Indian Ocean and Southeast Asia. Radiocarbon 44(1):167–80.
Stuiver, M, Braziunas, TF. 1993. Modelling atmospheric 14C influences and 14C ages of marine samples to 10,000 BC. Radiocarbon 35(2):137–89.
Stuiver, M, Östlund, HG. 1983. GEOSECS Indian Ocean and Mediterranean radiocarbon. Radiocarbon 25(1): 129.
Stuiver, M, Polach, HA. 1977. Discussion: reporting of 14C data. Radiocarbon 19(3):353–63.
Stuiver, M, Reimer, PJ. 1986. A computer program for radiocarbon age calibration. Radiocarbon 28(2B): 1022–30.
Stuiver, M, Reimer, PJ, Braziunas, TF. 1998. High-precision radiocarbon age calibration for terrestrial and marine samples. Radiocarbon 40(3):1127–51.
Toggweiler, JR, Dixon, K, Broecker, WS. 1991. The Peru upwelling and the ventilation of the South Pacific thermocline. Journal of Geophysical Research 96(C11):20,46797.
Wells, JW. 1950. Reef corals from the Cocos-Keeling Atoll. Bulletin of Raffles Museum 22:2952.
Woodroffe, CD, McLean, RF, Wallensky, E. 1994. Geomorphology of the Cocos (Keeling) Islands. Atoll Research Bulletin 402:133.
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Radiocarbon
  • ISSN: 0033-8222
  • EISSN: 1945-5755
  • URL: /core/journals/radiocarbon
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