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Problems in Radiocarbon Dating Human Remains from Arid Coastal Areas: An Example from the Cape Region of Baja California

Published online by Cambridge University Press:  20 January 2017

J. Eldon Molto ,
Joe D. Stewart  and
Paula J. Reimer
J. Eldon Molto
Affiliation:
Department of Anthropology, Lakehead University, Thunder Bay, Ontario P7B 5E1Canada
Joe D. Stewart
Affiliation:
Department of Anthropology, Lakehead University, Thunder Bay, Ontario P7B 5E1Canada
Paula J. Reimer
Affiliation:
Quaternary Research Center AK-60, University of Washington, Seattle, WA 98195
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Abstract

Three AMS radiocarbon dates on bone collagen from Las Palmas culture human skeletons from the cape region of Baja California are analyzed. Carbon derived from both terrestrial and marine sources necessitates correcting the radiocarbon ages for reservoir effects. Complicating this, however, are (a) the uncertain percentage of carbon of marine origin in the samples and (b) the convergence of the Pacific Ocean and the Gulf of California, which differ markedly in reservoir values. Computer program CALIB 3.0.3c is used to correct and calibrate the conventional radiocarbon dates in a simulation using varied values for marine carbon and reservoir effects for each sample. This produces substantial variance in the results and, therefore, difficulties for chronological interpretation. For example, reasonable input values for dR and percent marine carbon yield dates that overlap the first European contact (A.D. 1533), despite the absence of historic documentation of the Las Palmas mortuary complex. Further research on reservoir effects and paleodiet is needed in order to interpret radiocarbon determinations on cape region human remains. Moreover, our findings have serious implications for the proper application of radiocarbon dating to samples from other regions subject to reservoir effects.

Se analizan tres fechamientos de radiocarbono de AMS en colàgeno de hueso de esqueletos de la cultura de Las Palmas de la región del cabo de Baja California. Carbón derivado de fuentes terrestres y fuentes marinas requiére corregir las edades de radiocarbono para corregir los efectos de depósito. Complicando esto, sin embargo, son (a) el porcentaje incierto de carbón de origen marine en las muestras y (b) la convergencia del Océano Pacífico y del Golfo de California, que difieren muchísimo en sus valores de depósito. Se usa el programa de computadora CALIB 3.0.3c para corregir y calibrar los fechamientos convencionales de radiocarbono en una simulación que emplea valores variados para el carbón marinoy efectos de depósito para cada muestra. Esto produce variación substancial en los resultados y, por lo tanto, dificultades para la interpretatión cronológica. Por ejemplo, valores razonables de entrada para ΔR y porcentaje de carbón marino producen fechamientos que remontan más alla del primer contacte europeo (d.C. 1533), a pesar de la ausencia de documentatión histórica de los complejos mortuorios de Las Palmas. Se necesita más investigatión sobre los efectos de depósito y paleodieta para interpretar determinaciones radiocarbónicas en los restos humanos de la region del cabo. Además, nuestros resultados tienen implicaciones sérias para la correcta aplicación de fechamiento a las muestras de otras regiones sujeta a efectos de depósito.

Type
Reports
Information
American Antiquity , Volume 62 , Issue 3 , July 1997 , pp. 489 - 507
Copyright
Copyright © The Society for American Archaeology 1997

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References

References Cited

Aitken, M. J. 1990 Science-Based Dating in Archaeology. Longman, New York.Google Scholar
Aitken, M. J. 1987 Identification of the Use of Marine Plant Material as Animal Fodder by Stable Isotope Ratios, PACT 29, Proceedings of the Second International Symposium on C and Archaeology, edited by Mook, W. G. and Waterbolk, H.T. pp. 251–258. Council of Europe, Strasbourg, France.Google Scholar
Ambrose, S. H. 1993 Isotopic Analysis of Paleodiets: Methodological and Interpretive Considerations. In Elemental and Isotopic Analyses: Understanding Diet and Disease in Past Populations, edited by Stanford, M. K., pp. 59–130. Gordon and Breach Scientific Publishers, Langhorne, Pennsylvania.Google Scholar
Ambrose, S. H., and Norr, L. 1992 On Stable Isotope Data and Prehistoric Subsistence in the Soconusco Region. Current Anthropology 33: 401–404.CrossRefGoogle Scholar
Ambrose, S. H., and Norr, L. 1993 Experimental Evidence for the Relationship of the Carbon Isotope Ratios of Whole Diet and Dietary Protein to Those of Bone Collagen and Carbonate. In Prehistoric Human Bone Archaeology at the Molecular Level, edited by Lambert, J. B. and Grupe, G., pp. 1–37. Springer-Verlag, Berlin.Google Scholar
Arundale, W. H. 1981 Radiocarbon Dating in Eastern Arctic Archaeology: A Flexible Approach. American Antiquity 46: 244–271.Google Scholar
Aschmann, H. 1956 Historical Sources for a Contact Ethnography of Baja California. California Historical Society Quarterly 44: 99–121.CrossRefGoogle Scholar
Aschmann, H. 1966 The Natural and Human History of Baja California. Dawson's Book Shop, Los Angeles.Google Scholar
Aschmann, H. 1967 The Central Desert of Baja California: Demography and Ecology. Manessier Publishing, Riverside, California.Google Scholar
Berger, R., Taylor, R. E., and Libby, W. F. 1966 Radiocarbon Content of Marine Shells from the California and Mexican West Coast. Science 153: 864–866.Google Scholar
Beukens, R. 1994 Procedures and Precision in C AMS. Nuclear Instruments and Methods in Physics Research B 92: 182–187.Google Scholar
Beukens, R. 1986 Progress at the IsoTrace Radiocarbon Facility. Radiocarbon 28(2A): 229–236.Google Scholar
Bowman, S. 1990 Radiocarbon Dating: Interpreting the Past. British Museum, London.Google Scholar
Browman, D. L. 1981 Isotopic Discrimination and Correction Factors in Radiocarbon Dating. In Advances in Archaeological Method and Theory, vol. 4, edited by Schiffer, M. B., pp. 241–295. Academic Press, New York.Google Scholar
Burleigh, R., Matthews, K., and Leese, M. 1984 Consensus 813C Values. Radiocarbon 26: 46–53.Google Scholar
Carmean, K., and Molto, J. E. 1991 The Las Palmas Burial Tradition of the Cape Region, Baja California Sur: Some New Research Questions. Pacific Coast Archaeological Society Quarterly 27(4): 23–38.Google Scholar
Chisholm, B. S., Nelson, D. E., Hobson, K. A., Schwarcz, H. P., 1983 Carbon Isotope Measurement Techniques for Bone Collagen: Notes for the Archaeologist. Journal of Archaeological Science 10: 355–360.CrossRefGoogle Scholar
Chisholm, B. S., Nelson, D. E., and Schwarcz, H. B. 1982 Stable-Carbon Isotope Ratios as a Measure of Marine Versus Terrestrial Protein in Ancient Diets. Science 216: 1131–1132.CrossRefGoogle ScholarPubMed
Cook, S. F. 1937 The Extent and Significance of Disease Among the Indians of Baja California 1697-1773. Ibero-Americana 12: 1–39.Google Scholar
Craig, H. 1954 Carbon 13 in Plants and the Relationships between Carbon 13 and Carbon 14 Variations in Nature. Journal of Geology 62: 115–149.Google Scholar
Creel, D., and Long, A. 1986 Radiocarbon Dating of Corn. American Antiquity 51: 826–837.CrossRefGoogle Scholar
Dean, J. S. 1978 Independent Dating in Archaeological Analysis. In Advances in Archaeological Method and Theory, vol. 1, edited by Schiffer, M. B., pp. 223–255. Academic Press, New York.Google Scholar
Deines, S. H. 1980 The Isotopic Composition of Reduced Organic Carbon. In Handbook of Environmental Isotope Geochemistry, vol. 1, edited by Fritz, P. and Fontes, J.C. pp. 329-06. Elsevier, Amsterdam.Google Scholar
de la Luz, J. L. L., and Coria, R. 1992 Flora Iconogrdfica de Baja California Sur. Publicacion No. 3. Centra de Investigaciones Biologicas de Baja California Sur, La Paz.Google Scholar
DeNiro, M. J. 1987 Stable Isotopy and Archaeology. American Scientist 75: 182–192.Google Scholar
DeNiro, M. J., and Epstein, S. 1978 Influence of Diet on the Distribution of Carbon Isotopes in Animals. Geochimica et Cosmochimica Acta 42: 495–506.Google Scholar
Druffel, E. R. M., and Williams, P. M. 1991 Radiocarbon in Seawater and Organisms from the Pacific Coast of Baja California. Radiocarbon 33: 291–296.Google Scholar
Evin, J. 1983 Materials of Terrestrial Origin Used for Radiocarbon Dating. In PACT 8, Proceedings of the First International Symposium ,4C and Archaeology, edited by Mook, W. K. and Waterbolk, H.T. pp. 235–276. Council of Europe, Strasbourg, France.Google Scholar
Freeman, T. A. 1991 Chronometric Determinations for the Northern Del Rey Hills, Los Angeles County, California. Pacific Coast Archaeological Society Quarterly 27(1): 1–11.Google Scholar
Fujita, H. 1985 Recoleccion de moluscos entre los indigenas de Baja California: Andlisis etnohistorico y arquelogico. Unpublished Master's thesis, Escuela Nacional de Antropologi'a e Historia, Mexico City.Google Scholar
Fujita, H. 1995 Prehistoric Coastal Adaptations in the Cape Region, Baja California Sur. Pacific Coast Archaeological Society Quarterly 3l(l-2): 4-\9.Google Scholar
Gerlach, C, and Mason, O. K. 1992 Calibrated Radiocarbon Dates and Cultural Interaction in the Western Arctic. Arctic Anthropology 29: 54–81.Google Scholar
Gieskes, J. M., Simoneit, B. R. T., Brown, T., Shaw, T., Wang, Y.-C., and Magenheim, A. 1988 Hydrothermal Fluids and Petroleum in Surface Sediments of Guaymas Basin, Gulf of California: A Case Study. Canadian Mineralogist 26: 589–602.Google Scholar
Gillespie, R., and Polach, H. A. 1979 The Suitability of Marine Shells for Radiocarbon Dating. In Radiocarbon Dating: Proceedings of the Ninth International Conference, Los Angeles and La Jolla, edited by Berger, R. and Suess, H.E. pp. 404^21. University of California Press, Berkeley.Google Scholar
Gillespie, R., Hedges, R. E. M., and Wand, J. O. 1984 Radiocarbon Dating of Bone by Accelerator Mass Spectrometry. Journal of Archaeological Science 11: 165–170.Google Scholar
Hare, P. E., Fogel, M. L., Stafford, T. W. Jr., Mitchell, A. D., 1991 The Isotopic Composition of Carbon and Nitrogen in Individual Amino Acids Isolated from Modern and Fossil Proteins. Journal of Archaeological Science 18: 277–292.Google Scholar
Hubbs, C. L., and Roden, G. I. 1964 Oceanography and Marine Life along the Pacific Coast of Middle America. In Natural Environment and Early Cultures, edited by West, R. F., pp. 143–186. Handbook of Middle American Indians, vol. 1, edited by R. Wauchope. University of Texas Press, Austin.Google Scholar
Kroeber, A. L. 1931 The Seri. Papers No. 6. Southwest Museum, Los Angeles.Google Scholar
Laylander, D. 1987 Sources and Strategies for a Prehistory of Baja California. Unpublished Master's thesis, Department of Anthropology, San Diego State University, San Diego.Google Scholar
Linick, T. W. 1980 La Jolla Natural Radiocarbon Measurements IX. Radiocarbon 22: 1034–1044.Google Scholar
Little, E. A. 1993 Radiocarbon Age Calibration at Archaeological Sites of Coastal Massachusetts and Vicinity. Journal of Archaeological Science 20: 457–171.Google Scholar
Longin, R. 1970 Extraction du collagene des os fossiles pour leur dotation par la methode du carbone 14. Unpublished Ph.D. dissertation, Universite de Lyon, Lyon, France.Google Scholar
Massey, W. 1955 Culture History in the Cape Region of Baja California. Unpublished Ph.D. dissertation, Department of Anthropology, University of California, Berkeley.Google Scholar
Massey, W. 1966 Archaeology and Ethnohistory of Lower California. In Archaeological Frontiers and External Connections, edited by Ekholm, G. F. and Willey, G.R. pp. 38–58. Handbook of Middle American Indians, vol. 4, edited by R. Wauchope. University of Texas Press, Austin.Google Scholar
Mathes, W. M. 1989 Baja California: A Special Area of Contact and Colonization, 1535-1697. In Archaeological and Historical Perspectives on the Spanish Borderlands West, edited by Thomas, D. H., pp. 407-120. Columbian Consequences, vol. 1. Smithsonian Institution Press, Washington, D.C. Google Scholar
McGee, W. J. 1898 The Seri Indians. Bureau of American Ethnology Annual Report 17(1895-1896): l-344. Smithsonian Institution, Washington, D.C. Google Scholar
McGhee, R., and Tuck, J. A. 1976 Undating the Canadian Arctic. In Eastern Arctic Prehistory: Paleoeskimo Problems, edited by Maxwell, M. S., pp. 6–14. Memoirs No. 31. Society for American Archaeology, Washington, D.C. Google Scholar
Molto, J. E., and Fujita, H. 1995 La Matancita: A Las Palmas Mortuary Site from the Cape Region of Baja California. Pacific Coast Archaeological Society Quarterly 31(1-2): 20–55.Google Scholar
Molto, J. E., and Kennedy, B. 1991 Diet of the Las Palmas Culture of the Cape Region, Baja California Sur. Pacific Coast Archaeological Society Quarterly 27(4): 47–59.Google Scholar
Mook, W. G., and Streurman, H. J. 1983 Physical and Chemical Aspects of Radiocarbon Dating. In PACT 8, Proceedings of the First International Symposium C and Archaeology, edited by Mook, W. G. and Waterbolk, H.T. pp. 31–56. Council of Europe, Strasbourg, France.Google Scholar
Moriarty, J. R. III 1970 A Synthesis of the Pre-history of Baja California. Pacific Coast Archaeological Society Quarterly 6(1): 3–12.Google Scholar
Moriarty, J. R. III, and Moriarty, N. C. 1971 Prehistoric Subsistence Modes in Baja California. Pacific Coast Archaeological Society Quarterly 1(7): 15–23.Google Scholar
Olsson, I. U. 1983 Dating of Non-terrestrial Materials. In PACT 8, Proceedings of the First International Symposium C and Archaeology, edited by Mook, W. G. and Waterbolk, H.T. pp. 277–294. Council of Europe, Strasbourg, France.Google Scholar
O'Leary, M. H. 1988 Carbon Isotopes in Photosynthesis. Bioscience 38: 328–336.Google Scholar
Ovando, R. J., and Rodriguez, Z. L. 1989 Los entierros humanos de “El Conchalito”, La Paz, Baja California Sur. In Estudios de antropologia biologica (IV Coloquio de Antropologia Fisica Juan Comas,Google Scholar
Ovando, R. J., and Rodriguez, Z. L. 1986), pp. 500–530. Antropologia Fisica, Serie Antropologica 100. Instituto de Investigaciones Antropologicas, Universidad Nacional Autonoma de Mexico, Instituto Nacional de Antropologia e Historia, Mexico City.Google Scholar
Parkington, J. 1991 Approaches to Dietary Reconstruction in the Western Cape: Are You What You Have Eaten? Journal of Archaeological Science 18: 331–342.Google Scholar
Protsch, R. 1991 Dating of Bones in Archaeology and Anthropology. In Scientific Dating Methods, edited by Goksu, H. Y., M. Oberhofer, and D. Regulla, pp. 271–300. Kluwei Academic Publishers, Dodrecht, Boston, and London.’Google Scholar
Rau, G. H. 1979 Carbon Sources for Aquatic Insect Production in a Subalpine Lake. Unpublished Ph.D. dissertation, College of Forest Resources, University of Washington, Seattle.Google Scholar
Regadas, F., and Velazquez, G. 1990 Extraccion de moluscos por grupos indfgenas en la region austral de Baja California. In Etnoarqueologia Coloquio Bosch-Gimpera, edited by Y. Sugiura Y. and M. C. Serra P., pp. 241–262. Instituto de Investigaciones Antropologicas, Universidad Nacional Autonoma de Mexico, Mexico City.Google Scholar
Robinson, S. W., and Thompson, G. 1981 Radiocarbon Corrections for Marine Shell Dates with Application to Southern Northwest Coast Prehistory. Syesis 14: 45–57.Google Scholar
Schober, T. M., Molto, J. E., and Kennedy, B. 1995 Aboriginal Diets of the Baja Peninsula: An Isotopic Evaluation. Manuscript on file, Department of Anthropology, Lakehead University, Thunder Bay, Ontario, Canada.Google Scholar
Schoeninger, M. J., and Moore, K. 1992 Bone Stable Isotope Studies in Archaeology. Journal of World Prehistory 6: 247–296.Google Scholar
Schoeninger, M. J., and Moore, K. 1991 Some Theoretical Aspects of Isotope Paleodiet Studies. Journal of Archaeological Science 18: 261–276.Google Scholar
Sealy, J. C, van der Merwe, N. J., Thorp, J. A., and Lahman, J. L. 1987 Nitrogen Isotope Ecology in Southern Africa: Implications for Environmental and Dietary Tracing. Geochimica et Cosmochimica Acta 48: 625–639.Google Scholar
Sillen, A., Sealy, J. C., and van der Merwe, N. J. 1989 Chemistry and Paleodietary Research: No More Easy Answers. American Antiquity 54: 504–512.Google Scholar
Stuiver, M., and Braziunas, T. F. 1985 Compilation of Isotopic Dates from Antarctica. Radiocarbon 27: 117–304.CrossRefGoogle Scholar
Stuiver, M., and Braziunas, T. F. 1993 Modelling Atmospheric C Influences and C Ages of Marine Samples to 10,000 BC. Radiocarbon 35: 137–189.Google Scholar
Stuiver, M., and Pearson, G. W. 1993 High-precision Bidecadal Calibration of the Radiocarbon Time Scale, AD 1950-500 and 2500-6000 BC. Radiocarbon 35: 1–23.CrossRefGoogle Scholar
Stuiver, M., Pearson, G. W., and Braziunas, T. F. 1986 Radiocarbon Age Calibration of Marine Samples Back to 9000 Cal Yr BP. Radiocarbon 28: 980–1021.Google Scholar
Stuiver, M., and Polach, H. A. 1977 Discussion: Reporting of C Data. Radiocarbon 19: 355–363.Google Scholar
Stuiver, M., and Reimer, P. J. 1993a Extended ,4C Data Base and Revised CALIB 3.0 14C Age Calibration Program. Radiocarbon 35: 215–230.Google Scholar
Stuiver, M., and Reimer, P. J. 1993b CALIB User's Guide Rev. 3.0.3. Quaternary Research Center AK-60, University of Washington, Seattle.Google Scholar
Stuiver, M., and Robinson, S. W. 1974 University of Washington Geosecs North Atlantic Carbon-14 Results. Earth and Planetary Science Letters 23: 87–90.Google Scholar
Tauber, H. 1979 ,4C Activity of Arctic Marine Mammals. In Radiocarbon Dating: Proceedings of the Ninth International Conference, Los Angeles and La Jolla, edited by Berger, R. and Suess, H.E. pp. 447–452. University of California Press, Berkeley.CrossRefGoogle Scholar
Tauber, H. 1983 ‘ C Dating of Human Beings in Relation to Dietary Habits. In PACTS, Proceedings of the First International Symposium C and Archaeology, edited by Mook, W. K. and Waterbolk, H.T. pp. 365–375. Council of Europe, Strasbourg, France.Google Scholar
Taylor, R. E. 1987 Radiocarbon Dating: An Archaeological Perspective. Academic Press, Orlando, Florida.Google Scholar
Taylor, R. E. 1992 Radiocarbon Dating of Bone: To Collagen and Beyond. In Radiocarbon Dating after Four Decades: An Interdisciplinary Perspective, edited by Taylor, R. E. and Kra, R.S. pp. 375^02. Springer-Verlag, New York.Google Scholar
Taylor, R. E. and Slota, P. S. 1979 Fraction Studies on Marine Shell and Bone Samples for Radiocarbon Analyses. In Radiocarbon Dating: Proceedings of the Ninth International Conference, Los Angeles and La Jolla, edited by Berger, R. and Suess, H.E. pp. 422^-32. University of California Press, Berkeley.Google Scholar
Taylor, R. E., Stuiver, M., and Reimer, P. I. 1996 Development and Extension of the Calibration of the Radiocarbon Time Scale: Archaeological Applications. Quaternary Science Reviews 15: 1–14.Google Scholar
Tieszen, L. L. 1991 Natural Variations in the Carbon Isotopes of Plants: Implications for Archaeology, Ecology and Paleoecology. Journal of Archaeological Science 18: 227–248.Google Scholar
Tieszen, L. L., and Fagre, T. 1993 Effect of Diet Quality and Composition on the Isotopic Composition of Respiratory C02, Bone Collagen, Bioapatite, and Soft Tissues. In Prehistoric Human Bone-Archaeology at the Molecular Level, edited by Lambert, J. B. and Grupe, G.. Springer-Verlag, Berlin.Google Scholar
Tyson, R. 1977 Human Skeletal Material from the Cape Region of Baja California, Mexico. The American Collections. Journal de la Societe des Americanistes 64: 167–174.Google Scholar
van der Merwe, N. J. 1982 Carbon Isotopes Photosynthesis and Archaeology. American Scientist 70: 596–606.Google Scholar