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14C Age of Glaciation in Estrecho De Magallanes–Bahía Inútil, Chile

Published online by Cambridge University Press:  18 July 2016

C J Heusser
C J Heusser*
Affiliation:
100 Clinton Road, Tuxedo, NY 10987 USA
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Abstract

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Basal 14C dates from a core of the mire at Puerto del Hambre (53°36'21″S, 70°55'53″W), located within the area of glaciation in Estrecho de Magallanes–Bahía Inútil, Chile, are no older than 14,455 ± 115 yr BP. The 14C dates are on samples from which screening isolated autochthonous plant remains. Previous 14C dates of 15,800 ± 200, 16,590 ± 320, and 16,290 ± 140 yr BP are from bulk samples collected from similar basal increments at the site during 3 separate, independent coring operations. The previous suite of 14C dates was suspected to be contaminated by older carbon in the light of chronological evidence, which indicates a 14C age of approximately 14,850 yr BP for glaciation elsewhere in southern Chile. Contamination by “infinitely old” carbon reworked from nearby Tertiary beds and redeposited at Puerto del Hambre is evidently the cause for the older 14C dates.

Type
Articles
Information
Radiocarbon , Volume 41 , Issue 3 , 1999 , pp. 287 - 293
Copyright
Copyright © 1999 by the Arizona Board of Regents on behalf of the University of Arizona 

References

Berglund, BE, editor. 1986. Handbook of Holocene palaeoecology and palaeohydrology. New York: John Wiley & Sons. 869 p.Google Scholar
Boulter, MC. 1994. An approach to a standard terminology for palynodebris. In: Traverse, A, editor. Sedimentation of organic particles. Cambridge: University of Cambridge Press. p 199–216.CrossRefGoogle Scholar
Clapperton, CM, Sugden, DE, Kaufman, DS, McCulloch, RD. 1995. The last glaciation in central Magellan Strait, southernmost Chile. Quaternary Research 44: 133–48.CrossRefGoogle Scholar
Denton, GH, Heusser, CJ, Lowell, TV, Moreno, PI, Andersen, BG, Heusser, LE, Schlüchter, C, Marchant, DR. 1999. Interhemispheric linkage of paleoclimate during the last glaciation. Geografiska Annaler 81A:107–53.Google Scholar
Faegri, K, Kaland, PE, Krzywinski, K. 1989. Textbook of pollen analysis. New York: John Wiley & Sons. 328 p.Google Scholar
Fasola, A. 1969. Estudio palinológico de la Formación Loreto (Terciario Medio), Provincia de Magallanes. Ameghiniana 6:3–49.Google Scholar
Geyh, MA, Schotterer, U, Grosjean, M. 1998. Temporal changes in the 14C reservoir effect in lakes. Radiocarbon 40(2):921–31.Google Scholar
Heusser, CJ. 1984. Late Quaternary climates of Chile. In: Vogel, JC, editor. Late Cainozoic palaeoclimates of the Southern Hemisphere. Rotterdam: Balkema. p 59–83.Google Scholar
Heusser, CJ. 1995. Three late Quaternary pollen diagrams from southern Patagonia and their palaeoecological implications. Palaeogeography, Palaeoclimatology, Palaeoecology 118:1–24.CrossRefGoogle Scholar
Heusser, CJ. 1998. Deglacial paleoclimate of the American sector of the Southern Ocean: Late glacial–Holocene records from the latitude of Canal Beagle (55°S), Argentine Tierra del Fuego. Palaeogeography, Palaeoclimatology, Palaeoecology 141:277–301.CrossRefGoogle Scholar
Heusser, CJ, Heusser, LE, Lowell, TV, Moreira, A, Moreira, S. 2000. Deglacial palaeoclimate at Puerto del Hambre, subantarctic Patagonia, Chile. Journal of Quaternary Science. Forthcoming.3.0.CO;2-Y>CrossRefGoogle Scholar
Lumley, SH, Switsur, R. 1993. Late Quaternary chronology of the Taitao Peninsula, southern Chile. Journal of Quaternary Science 8:161–65.CrossRefGoogle Scholar
McCulloch, RD, Bentley, MJ. 1998. Late glacial ice advances in the Strait of Magellan, southern Chile. Quaternary Science Reviews 17:775–87.CrossRefGoogle Scholar
Olsson, IU. 1979. Radiocarbon dating of material from different reservoirs. In: Suess, HE, Berger, R, editors. Radiocarbon Dating: Proceedings of the Ninth International Conference, Los Angeles and La Jolla, 1976. Berkeley: University of California Press. p 613–8.Google Scholar
Olsson, IU. 1986. Radiometric dating. In: Berglund, BE, editor. Handbook of Holocene palaeoecology and palaeohydrology. New York: John Wiley & Sons. p 273–312.Google Scholar
Olsson, IU, Erikkson, KG. 1965. Remarks on C14 dating of shell material in sea sediments. Progress in Oceanography 3:253–66.CrossRefGoogle Scholar
Pessenda, LCR, Gouveia, SEM, Aravena, R, Gomes, BM, Boulet, R, Ribeiro, AS. 1998. 14C dating and stable carbon isotopes of soil organic matter in forest-savanna boundary areas in the southern Brazilian Amazon area. Radiocarbon 40(2):1013–22.Google Scholar
Porter, SC, Clapperton, CM, Sugden, DE. 1992. Chronology and dynamics of deglaciation along and near the Strait of Magellan, southernmost South America. Sveriges Geologiska Undersökning 81:233–9.Google Scholar
Servicio Nacional de Geología y Minería. 1982. Hoja 6, 49°30′–56°30'S. In: Escobar, T. F, editor. Mapa Geológico de Chile. Santiago: Instituto Geográfico Militar. Scale 1:1,000,000.Google Scholar
Stuiver, M, Reimer, PJ, Bard, E, Beck, JW, Burr, GS, Hughen, KA, Kromer, B, McCormac, G, van der Plicht, J, Spurk, M. 1998. INTCAL98 radiocarbon age calibration, 24,000–0 cal BP. Radiocarbon 40(3): 1041–83.CrossRefGoogle Scholar
Wright, HE Jr. 1967. A square-rod piston sampler for lake sediments. Journal of Sedimentary Petrology 37: 975–6.CrossRefGoogle Scholar