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Calibration of Radiocarbon Ages and the Interpretation of Paleoenvironmental Records

Published online by Cambridge University Press:  20 January 2017

Patrick J. Bartlein ,
Mary E. Edwards ,
Sarah L. Shafer  and
Edward D. Barker Jr.
Patrick J. Bartlein
Affiliation:
Department of Geography, University of Oregon, Eugene, Oregon 97403-1251
Mary E. Edwards
Affiliation:
Departments of Geology and Geophysics, and Biology and Wildlife, University of Alaska, Fairbanks, Alaska 99775-0760
Sarah L. Shafer
Affiliation:
Department of Geography, University of Oregon, Eugene, Oregon 97403-1251
Edward D. Barker Jr.
Affiliation:
College of Community and Continuing Education, University of Alaska, Fairbanks, Alaska 99775
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Abstract

Calibration of the radiocarbon timescale of paleoecological records is essential if they are to be explained correctly in terms of their governing ecological or climatological controls. The differences between calendar ages and radiocarbon ages that arise from variations in 14C production through time can distort the chronologies of individual records and the interpretations based on them. Misleading impressions of synchrony or diachrony of events among multiple records can result, and estimates of the apparent duration of episodes and rates of sedimentation and local population changes can be biased. Displays of the temporal patterns of migration or extinction may also be affected. Spurious correlations may arise between records with radiocarbon-controlled chronologies and time series of potential controls that are expressed on a calendar time scale. Support for particular explanations of features in a paleoecological record may vary depending on whether radiocarbon ages are calibrated or not. This situation is illustrated using the eastern Beringian Populus subzone as an example. When the radiocarbon ages that control the timing of the Populus subzone are calibrated, the contemporaneous decrease in ice volume and increase in summer insolation are implicated as the ultimate controls of the occurrence of the subzone.

Type
Research Article
Information
Quaternary Research , Volume 44 , Issue 3 , November 1995 , pp. 417 - 424
Copyright
University of Washington

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References

Ager, T. A. (1983). Holocene vegetational history of Alaska. In “Late-Quaternary Environments of the United States” (Wright, H. E. Jr., Ed.), Vol. 2, pp. 128–141. University of Minnesota Press, Minneapolis.Google Scholar
Anderson, P. M. (1988). Late Quaternary pollen records from the Kobuk and Noatak River drainages, northwestern Alaska. Quaternary Research 29 , 263–276.Google Scholar
Anderson, P. M.. Bartlein, P. J., and Brubaker, L. B. (1994). Late Quaternary history of tundra vegetation in northwestern Alaska. Quaternary Research 41, 306–315.Google Scholar
Anderson, P.M., and Brubaker, L. B. (1986). Modem pollen assemblages from northern Alaska. Review of Paleobotany and Palynology 46 , 273–291.Google Scholar
Anderson, P. M., and Brubaker, L. B. (1994). Vegetation history of northcentral Alaska: A mapped summary of late-Quaternary pollen data. Quaternary Science Reviews 13, 71–92.Google Scholar
Anderson, P. M. Reanier, R. E., and Brubaker, L. B. (1988). Late Quaternary vegetational history of the Black River region in northeastern Alaska. Canadian Journal of Earth Sciences 25, 84–94.Google Scholar
Anderson, P. M. Reanier, R. E., and Brubaker, L. B. (1990). A 14,000-year pollen record from Sithylemenkat Lake, north-central Alaska. Quaternary Research 33 , 400–404.Google Scholar
Bard, E. Arnold, M. Fairbanks, R. G., and Hamelin, B. (1993). 230Th-234U and 14C ages obtained by mass spectrometry on corals. Radiocarbon 35 , 191–199.Google Scholar
Bard, E. Hamelin, B. Fairbanks, R., and Zindler, A, (1990). Calibration of the 14C timescale over the past 30,000 yr using mass spectrometric U-Th ages from Barbados corals. Nature 345 , 405–410.Google Scholar
Barnosky, C. W. Anderson, P. M., and Bartlein, P. J. (1987). The northwestern U.S. (during deglaciation; Vegetational history and paleoclimatic implications. In “North America and Adjacent Oceans during the Last Deglaciation” (Ruddiman, W. F. and Wright, H. E. Jr., Eds.), Vol. K-3, pp. 289–321. Geological Society of America, Boulder, CO.Google Scholar
Bartlein, P. J. Anderson, P. M. Edwards, M. E., and McDowell, P. F. (1991). A framework for interpreting paleoclimatic variations in eastern Beringia. Quaternary International 10-12, 73–83.Google Scholar
Bartlein, P. J., and Whitlock, C. (1993). Paleoclimatic interpretation of the Elk Lake pollen record. In “Elk Lake, Minnesota: Evidence for Rapid Climate Change in the North-Central United States” (Bradbury, I. P. and Dean, W. E., Eds.), pp. 275–293. Geological Society of America, Boulder, CO.Google Scholar
Bennett, K. D. (1986). The rate of spread and population increase of forest trees during the postglacial. Philosophical Transactions of the Royal Society B 314, 523–531.Google Scholar
Berger, A. (1978). Long-term variations of caloric insolation resulting from the Earth’s orbital elements. Quaternary Research 9 , 139–167.Google Scholar
Brubaker, L. B. Garfinkel, H. L., and Edwards, M. E. (1983). A late Wisconsin and Holocene vegetation history from the central Brooks Range; Implications for Alaskan palaeoecology. Quaternary Research 20 , 194–214.Google Scholar
Cwynar, L. C. (1988). Late Quaternary vegetation history of Kettlehole Pond, southwestern Yukon. Canadian Journal of Forest Research 18, 1270–1279.Google Scholar
Cwynar, L. C., and Spear, R. W. (1991). Reversion of forest to tundra in the central Yukon. Ecology 72, 202–212.Google Scholar
Edwards, M. E. Anderson, P. M. Garfinkel, H. L., and Brubaker, L. B. (1985). Late Wisconsin and Holocene vegetation history of the upper Koyukuk region, Brooks Range, Alaska. Canadian Journal of Botany 63, 616–646.Google Scholar
Edwards, M. E., and Barker, E. D. Jr. (1994). Climate and vegetation in northeastern Alaska. Palaeogeography, Palaeoclimatology, Palaeoecology 109 , 127–135.Google Scholar
Edwards, M. E., and Brubaker, L. B. (1986). Late Quaternary vegetation history of the Fishhook Bend area, Porcupine River, Alaska. Canadian Journal of Earth Sciences 23 , 1765–1773.Google Scholar
Edwards, M. E., and Dunwiddie, P. W. (1985). Dendrochronological and palynological observations on Populus balsamifera in northern Alaska. Arctic and Alpine Research 17 , 271–278.Google Scholar
Fairbanks, R. G. (1989). A 17,000-year glacio-eustatic sea level record: Influence of glacial melting rates on the Younger Dryas event and deep-ocean circulation. Nature 342 , 637–642.Google Scholar
Hu, F. S. Brubaker, L. B., and Anderson, P. M. (1993). A 12,000 year record of vegetation change and soil development from Wien Lake, Central Alaska. Canadian Journal of Botany 71 , 1133–1142.Google Scholar
Huntley, B. (1988). Europe. In “Vegetation History” (Huntley, B. and Webb, T. III, Eds.), pp. 341–383. Kluwer Academic, Amsterdam.CrossRefGoogle ScholarPubMed
Jacobson, G. L. Webb, T. III, and Grimm, E. C. (1987). Patterns and rates of vegetation change during the deglaciation of eastern North America. In “North America and Adjacent Oceans During the Last Deglaciation” (Ruddiman, W. F. and Wright, H. E. Jr., Eds.), pp. 277–288. Geological Society of America, Boulder, CO.Google Scholar
Keenan, R. J., and Cwynar, L. C. (1992). Late Quaternary history of black spruce and grasslands in southwest Yukon Territory. Canadian Journal of Botany 70, 1336–1345.Google Scholar
Klein, J. Lerman, J. C. Damon, P. E., and Ralph, E. K. (1982). Calibration of radiocarbon dates. Radiocarbon 23 , 103–150.Google Scholar
Kutzbach, J. E. Bartlein, P. J. Prentice, I. C. Ruddiman, W. F. Street-Perrott, F. A. Webb, T. III, and Wright, H. E. Jr. (1993). Epilogue. In “Global Climates Since the Last Glacial Maximum” (Wright, H. E. Jr. Kutzbach, J. E. Webb, T. III Ruddiman, W. F. Street-Perrott, F. A., and Bartlein, P. J., Eds.), pp. 536–542. Univ. Minnesota Press, Minneapolis.Google Scholar
Lamb, H. F., and Edwards, M. E. (1988). The Arctic. In “Vegetation History” (Huntley, B. and Webb, T. III, Eds.), pp. 519–555. Kluwer Academic, Amsterdam.CrossRefGoogle Scholar
MacDonald, G. M., and Cwynar, L. C. (1991). Postglacial population history of Pinus Contorta ssp. latifolia in the western interior of Canada. Journal of Ecology 79 , 417–29.Google Scholar
Meltzer, D. I., and Mead, D. E. (1983). The timing of Late Pleistocene mammalian extinctions in North America. Quaternary Research 19 , 130–135.Google Scholar
Mix, A. C., and Ruddiman, W. F. (1985). Structure and timing of the last deglaciation. Quaternary Science Reviews 4 , 59–108.Google Scholar
Mott, R. J. (1978). Populus in late-Pleistocene pollen spectra. Canadian Journal of Botany 56 , 1021–1031.Google Scholar
Overpeck, J. T. Bartlein, P. J., and Webb, T. III (1991). Potential magnitude of future vegetation change in Eastern North America: comparisons with the past. Science 25 , 692–695.Google ScholarPubMed
Ritchie, J. C. (1977). The modern and late Quaternary vegetation of the Campbell-Dolomite uplands near Inuvik, N.W.T. Canada. Ecological Monographs 47 , 401–423.Google Scholar
Ritchie, I. C, (1985). Late-Quatemary climatic and vegetational change in the lower Mackenzie basin, northwest Canada. Ecology 66 , 612–621.Google Scholar
Ritchie, J. C. Cwynar, L. C., and Spear, R. W. (1983). Evidence from northwest Canada for an early Holocene Milankovitch thermal maximum. Nature 305, 126–128.Google Scholar
Ritchie, J. C., and MacDonald, G. M. (1986). The patterns of post-glacial spread of white spruce. Journal of Biogeography 13 , 527–540.Google Scholar
Stuiver, M., and Braziunas, T. F. (1993). Sun, ocean, climate and atmospheric 14CO2: an evaluation of causal and spectral relationships. The Holocene 3 , 289–305.Google Scholar
Stuiver, M. Braziunas, T. F. Becker, B., and Kromer, B. (1991). Climatic, solar, oceanic and geomagnetic influences on Late-Glacial and Holocene atmospheric 14C/12C change. Quaternary Research 38, 1–24.Google Scholar
Stuiver, M. Kromer, B. Becker, B., and Ferguson, C. W. (1986). Radiocarbon age calibration back to 13,300 years B,P, and the l4C age matching of the German oak and US Bristlecone pine chronologies. Radiocarbon 28, 980–1021.Google Scholar
Stuiver, M., and Reimer, P. J. (1986). A computer program for radiocarbon age calibration. Radiocarbon 31, 817–823.Google Scholar
Stuiver, M., and Reimer, P. J. (1993). Extended 14C data base and revised CALIB 3.0 l4C age calibration program. Radiocarbon 35, 215–230.Google Scholar
Stuiver, M., and Suess, H. E. (1966). On the relationship between radiocarbon dates and true sample ages. Radiocarbon 8 , 534–540.Google Scholar
Tsukada, M. (1982). Pseudotsuga menziesii (Mirb.) Franco: Its pollen dispersal and late Quaternary history in the Pacific Northwest. Japanese Journal of Ecology 32, 159–187.Google Scholar
Tushingham, A. M, and Peltier, W. R. (1993). Implications of the radiocarbon timescale for ice-sheet chronology and sea-level change. Quaternary Research 39, 125–129.Google Scholar
Webb, R. S., and Webb, T. III (1988). Rates of sediment accumulation in pollen cores from small lakes and mires of eastern North America. Quaternary Research 30, 284–297.Google Scholar
Webb, T. III (1988). Eastern North America. In “Vegetation History” (Huntley, B. and Webb, T. III, Eds.), Vol. 7, pp. 385–414. Kluwer Academic, Amsterdam.CrossRefGoogle Scholar
Wendland, W. M, and Bryson, R. A. (1974). Dating climatic episodes of the Holocene. Quaternary Research 4, 9–24.Google Scholar
Wendland, W. M., and Donley, D. L. (1971). Radiocarbon/calendar age relationship. Earth and Planetary Science Letters 11 , 135–139.Google Scholar
Whitlock, C. Bartlein, P. J., and Watts, W. A, (1993). Vegetation history of Elk Lake. In “Elk Lake, Minnesota: Evidence for rapid climate change in the North-Central United States” (Bradbury, J. P. and Dean, W. E., Eds.), Geological Society of America Special Paper 276, pp. 251–274. Geological Society of America, Boulder, CO.Google Scholar