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Problems and Possible Solutions Concerning Radiocarbon Dating of Surface Marine Sediments, Ross Sea, Antarctica

Published online by Cambridge University Press:  20 January 2017

John T. Andrews
Affiliation:
INSTAAR and Department of Geological Sciences, Box 450, University of Colorado, Boulder, Colorado, 80309
Eugene W. Domack
Affiliation:
Department of Geology, Hamilton College, Clinton, New York, 13323
Wendy L. Cunningham
Affiliation:
INSTAAR and Department of Geological Sciences, Box 450, University of Colorado, Boulder, Colorado, 80309
Amy Leventer
Affiliation:
Department of Geology, Colgate University, Hamilton, New York, 13346
Kathy J. Licht
Affiliation:
INSTAAR and Department of Geological Sciences, Box 450, University of Colorado, Boulder, Colorado, 80309
A. J. Timothy Jull
Affiliation:
NSF AMS Facility, University of Arizona, Tucson, Arizona, 85721
David J. DeMaster
Affiliation:
Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina, 27695-8208
Anne E. Jennings
Affiliation:
INSTAAR and Department of Geological Sciences, Box 450, University of Colorado, Boulder, Colorado, 80309

Abstract

Radiocarbon accelerator mass spectrometric (AMS) dates on the acid-insoluble fraction from 38 core tops from the western Ross Sea, Antarctica, are used to address these questions: (1) What are the apparent ages of sediments at or close to the present sediment/water interface? (2) Is there a statistically significant pattern to the spatial distribution of core top ages? and (3) Is there a “correction factor” that can be applied to these age determinations to obtain the best possible Holocene (downcore) chronologies? Ages of core top sediments range from 2000 to 21,000 14C yr B.P. Some “old” core top dates are from piston cores and probably represent the loss of sediment during the coring process, but some core top samples >6000 14C yr B.P. may represent little or no Holocene deposition. Four possible sources of variability in dates ≤6000 14C yr B.P. (n = 28) are associated with (1) different sample preparation methods, (2) different sediment recovery systems, (3) different geographic regions, and (4) within-sample lateral age variability. Statistical analysis on an a posteriori design indicates that geographic area is the major cause of variability; there is a difference in mean surface sediment age of nearly 2000 yr between sites in the western Ross Sea and sites east of Ross Bank in south-central Ross Sea. The systematic variability in surface age between areas may be attributed to: (a) variable sediment accumulation rates (SAR) (surface age is inversely related to SAR), (b) differences in the percentage of reworked (dead) carbon between each area, and/or (c) differences in the CO2 exchange between the ocean and the atmosphere.

Type
Research Article
Copyright
University of Washington

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References

Anderson, J.B., Kurtz, D.D., Domack, E.W., Balshaw, K.M. (1980). Glacial and glacial marine sediments of the Antarctic continental shelf. Journal of Geology. 88, 399414.CrossRefGoogle Scholar
Andrews, J. T, Jull, A. J. T and Leventer, A. in press, Replication of AMS 14C dates on the acid-insoluble fraction of Ross Sea surface sediments. Antarctic Journal of the US.Google Scholar
Bard, E., Arnold, M., Mangerud, J., Paterne, M., Labeyrie, L., Duprat, J., Melieres, M.-A., Sonstegaard, E., Duplessy, J.-C. (1994). The North Atlantic atmosphere-sea surface 14C gradient during the Younger Dryas climatic event. Earth and Planetary Science Letters. 126, 275287.CrossRefGoogle Scholar
Berkman, P.A., Forman, S.L. (1996). Pre-bomb radiocarbon and the reservoir correction for calcareous marine species in the Southern Ocean. Geophysical Research Letters. 23, 363366.CrossRefGoogle Scholar
Bindschadler, R. A.(Ed.) (1991). Western Antarctic Ice Sheet Initiative. Vol, 1, Science and Implementation Plan, Conference Publication 3115, National Aeronautic and Space Administration, Washington, DC.Google Scholar
Bindschadler, R. A.(Ed.) (1995). West Antarctic Ice Sheet Initiative Science and Implementation Plan. WAIS Working Group. Report to National Science Foundation, (available on request from R. A. Bindschadler, NASA, Goddard Space Flight Center, Greenbelt, MD., ).Google Scholar
Bradley, R.S. (1985). Quaternary Paleoclimatology: Methods of paleoclimate reconstruction. Allen and Unwin, Boston.Google Scholar
Cunningham, W.L. (1997). The Use of Modern and Fossil Diatom Assemblages as Climate Proxies in the Central and Western Ross Sea, Antarctica. University of Colorado, Boulder.Google Scholar
Cunningham, W.L., Leventer, A. (1998). Diatom assemblages in surface sediments of the Ross Sea: Relationship to present oceanographic conditions. Antarctic Science. 10, 134146.CrossRefGoogle Scholar
Cunningham, W.L., Leventer, A., Andrews, J.T., Jennings, A.E., Licht, K.J. (1999). Late Pleistocene-Holocene marine conditions in the Ross Sea, Antarctica: Evidence from the diatom record. The Holocene. 9, 129139.CrossRefGoogle Scholar
Davis, J.C. (1986). Statistics and Data Analysis in Geology. Wiley and Sons, New York.Google Scholar
DeMaster, D.J. (1981). The supply and accumulation of silica in the marine environment. Geochimica et Cosmochimica Acta. 45, 17151732.CrossRefGoogle Scholar
DeMaster, D.J., Ragueneau, O., Nittrouer, C.A. (1996). Preservation efficiencies and accumulation rates for biogenic silica and organic C, N, and P in high-latitude sediments: The Ross Sea. Journal of Geophysical Research. 101, .CrossRefGoogle Scholar
Domack, E.W., Anderson, J.B., Jull, A.J.T., Linick, T.W., Williams, C.R. (1989). Application of tandem accelerator mass-spectrometer dating to Late Pleistocene–Holocene sediments of the East Antarctic continental shelf. Quaternary Research. 31, 277287.CrossRefGoogle Scholar
Domack, E.W., Foss, D.J.P., Syvitski, J.P.M., McClennen, C.E. (1994). Transport of suspended particulate matter in an Antarctic fjord. Marine Geology. 121, 161170.CrossRefGoogle Scholar
Domack, E.W., Ishman, S.E., Stein, A.B., McClennen, C.E., Jull, A.J.T. (1995). Late Holocene advance of the Müller Ice Shelf, Antarctic Peninsula: Sedimentologic, geochemical, and paleontological evidence. Antarctic Science. 7, 159170.CrossRefGoogle Scholar
Domack, E. W, Jacobson, E. A, Shipp, S and Anderson, J. B. in press, Sedimentologic and stratigraphic signature of the late Pleistocene/Holocene fluctuations of the West Antarctic Ice Sheet in the Ross Sea: A New Perspective, Part 2.Google Scholar
Domack, E. W., Mashiotta, T. A. and Burkley, L. A.(1993). 300-year cyclicity in organic matter preservation in Antarctic Fjord sediments. InThe Antarctic Paleoenvironment: A perspective on global change. pp. 265272. American Geophysical Union, Washington, DC.Google Scholar
Domack, E.W., McClennen, C.E. (1996). Accumulation of glacial marine sediments in fjords of the Antarctic Peninsula and their use as late Holocene paleoenvironmental indicators. Ross, R., Hoffman, E., Quetin, L. Foundations for Ecosystem Research West of the Antarctic Peninsula. American Geophysical Union, Washington., 135154.CrossRefGoogle Scholar
Donahue, D.J., Jull, A.J.T., Linick, T.W. (1990). Some archaeological applications of accelerator radiocarbon analysis. Nuclear Instruments and Methods. B45, 561564.CrossRefGoogle Scholar
Donahue, D.J., Linick, T.W., Jull, A.J.T. (1990). Isotope-ratio and background corrections for accelerator mass spectrometry radiocarbon measurements. Radiocarbon. 32, 135142.CrossRefGoogle Scholar
Dunbar, R.B., Anderson, J.B., Domack, E.W. (1985). Oceanographic influences on sedimentation along the Anarctica Continental Shelf. Jacobs, S.S. Oceanology of the Antarctic Continental Shelf. American Geophysical Union, Washington., 291312.CrossRefGoogle Scholar
Eglinton, T.I., Benitez-Nelson, B.C., Pearson, A. (1997). Variability in radiocarbon ages of individual organic compounds from marine sediments. Science. 277, 796799.CrossRefGoogle Scholar
Gibson, J.A.E., Trull, T., Nichols, P.D., Summons, R.W., McMinn, A. (1999). Sedimentation of 13C-rich organic matter from Antarctic sea-ice algae: A potential indicator of past sea ice extent. Geology. 27, 331334.2.3.CO;2>CrossRefGoogle Scholar
Gordon, J.E., Harkness, D.D. (1992). Magnitude and geographic variation of the radiocarbon content in Antarctic marine life: Implications for reservoir corrections in radiocarbon dating. Quaternary Science Reviews. 11, 697708.CrossRefGoogle Scholar
Harden, S.L., DeMaster, D.J., Nittrouer, C.A. (1992). Developing sediment geochronologies for high-latitude continental shelf deposits: A radiochemical approach. Marine Geology. 103, 6997.CrossRefGoogle Scholar
Harris, P.T., O'Brien, P.E., Sedwick, P., Truswell, E.M. (1996). Late Quaternary history of sedimentation on the MacRobertson Shelf, East Antarctica: Problem with 14C dating of marine sediment cores. Papers and Proceedings of the Royal Society of Tasmania. 130, 4753.CrossRefGoogle Scholar
Hilfinger, M. (1995). Chronology of the Late Pleistocene–Holocene Deglaciation in the Ross Sea. Unpublished B. A. thesis, Hamilton College, Clinton, NY.Google Scholar
Jacobson, E. A. (1997). Ice shelf sedimentation and the Holocene climatic optimum in the Ross Sea, Antarctica. Unpublished B. A. honors thesis, Hamilton College, Clinton, NY.Google Scholar
Kellogg, T.B., Truesdale, R.S., Osterman, L.E. (1979). Late Quaternary extent of the West Antarctic ice sheet: New evidence form Ross Sea cores. Geology. 7, 249253.2.0.CO;2>CrossRefGoogle Scholar
Kihl, R. (1975). Physical preparation of organic matter samples for C-14 dating. Arctic and Alpine Research. 7, 9091.Google Scholar
Leventer, A., Dunbar, R.B., DeMaster, D.J. (1993). Diatom evidence for late Holocene climatic events in Granite Harbor, Antarctica. Paleoceanography. 8, 373386.CrossRefGoogle Scholar
Licht, K. J. (1995). Marine sedimentary record of ice extent and late Wisconsin deglaciation in the Western Ross Sea, Antarctica. Unpublished M.Sc. thesis, University of Colorado, Boulder.Google Scholar
Licht, K.J., Cunningham, W.L., Andrews, J.T., Domack, E.W., Jennings, A.E. (1998). Establishing chronologies from acid-insoluble organic 14C dates on Antarctic (Ross Sea) and Arctic (North Atlantic) marine sediments. Polar Research. 17, 203216.CrossRefGoogle Scholar
Licht, K.J., Dunbar, N.W., Andrews, J.T., Jennings, A.E. (1999). Distinguishing subglacial till and glacial marine diamictons in the western Ross Sea, Antarctica: Implications for last glacial maximum grounding line. Geological Society of America Bulletin. 111, .2.3.CO;2>CrossRefGoogle Scholar
Licht, K.M., Jennings, A.E., Andrews, J.T., Williams, K.M. (1996). Chronology of late Wisconsin ice retreat from the western Ross Sea, Antarctica. Geology. 24, 223226.2.3.CO;2>CrossRefGoogle Scholar
Mangerud, J., Gulliksen, S. (1975). Apparent radiocarbon ages of recent marine shells from Norway, Spitsbergen, and Arctic Canada. Quaternary Research. 5, 263273.CrossRefGoogle Scholar
McCoy, F.W. (1980). Photographic analysis of coring. Marine Geology. 38, 263282.CrossRefGoogle Scholar
McCoy, F.W., von Herzen, R.P. (1971). Deep-sea corehead camera photography and piston coring. Deep-Sea Research. 18, 361373.Google Scholar
Pudsey, C.J., Barker, P.F., Larter, R.D. (1994). Ice sheet retreat from the Antarctic Peninsula shelf. Continental Shelf Research. 14, 16471675.CrossRefGoogle Scholar
Sackett, W.M., Poag, C.W., Eadie, B.J. (1974). Kerogen recycling in the Ross Sea, Antarctica. Science. 185, 10451046.CrossRefGoogle ScholarPubMed
Shipp, S, Anderson, J. B and Domack, E. W. in press, Seismic signature of the late Pleistocene fluctuation of the West Antarctic Ice Sheet System in the Ross Sea: A New Perspective, Part 1, Geological Society of America Bulletin.Google Scholar
Stata, (1996). User's Guide. Release 5. Four volumes, Stata Press, College Station, TX.Google Scholar
Stuiver, M., Denton, G.H., Hughes, T.J., Fastook, J.L. (1981). History of the marine ice sheet in West Antarctica during the last glaciation: A working hypothesis. Denton, G.H., Hughes, T.J. The Last Great Ice Sheets. Wiley & Sons, New York., 319439.Google Scholar
Tortell, P.D., Reinfelder, J.R., Morel, F.M.M. (1997). Active uptake of bicarbonate by diatoms. Nature. 390, 243244.CrossRefGoogle Scholar
Truswell, E.M., Drewry, D.J. (1984). Distribution and provenance of recycled paynomorphs in surficial sediments of the Ross Sea. Marine Geology. 59, 187214.CrossRefGoogle Scholar
Velleman, P.F., Hoaglin, D.C. (1981). Applications, Basics, and Computing of Exploratory Data Analysis. Duxbury, Boston.Google Scholar
Venkatesan, M.I. (1988). Organic geochemistry of marine sediments in Antarctic region: Marine lipids in McMurdo Sound. Organic Geochemistry. 12, 1327.CrossRefGoogle Scholar
Walkley, A. (1947). A critical examination of a rapid method for determining organic carbon in soils—Effects of variation in digestion conditions of inorganic soil constituents. Soil Science. 63, 251264.CrossRefGoogle Scholar