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Obsidian-Hydration Dating: Its Past, Present, and Future Application in Mesoamerica

Published online by Cambridge University Press:  10 October 2008

AnnCorinne Freter
Affiliation:
Department of Sociology and Anthropology, Ohio University, Athens, OH 45701, USA

Abstract

The reconstruction of time is a central concern all archaeologists must address in their research; few, however, are fully aware of the potential of all the dating methods at their disposal. For this reason, this paper summarizes the developmental history and current level of field application of obsidian-hydration dating. It (1) reviews how this dating technique was first discovered and applied, (2) details our current knowledge of the process of hydration and which variables affect its rate, (3) discusses the relative advantages and limitations of the three primary approaches employed to construct hydration chronologies, and (4) presents a protocol for its future application in Mesoamerica. The synthesis of this body of hydration-dating research may help archaeologists more constructively decide how and when to apply this unique and versatile dating technique to their specific research questions by providing the information and guidelines necessary for recovering pertinent field data.

Type
Special Section: Recent Research on Obsidian in Mesoamerica
Copyright
Copyright © Cambridge University Press 1993

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References

REFERENCES

Ambrose, Walter R. 1976 Intrinsic Hydration Rate Dating of Obsidian, in Advances in Obsidian Glass Studies, edited by Taylor, R.E., pp. 81105. Noyes, Park Ridge, NJ.Google Scholar
Ambrose, Walter R. 1984 Soil Temperature Monitoring at Lake Mungo: Implications for Racemisation Dating. Australian Archaeology 19: 6474.CrossRefGoogle Scholar
Andrews, E. Wyllys V, and Fash, Barbara W. 1992 Continuity and Change in a Royal Maya Residential Complex at Copan. Ancient Mesoamerica 3: 6388.CrossRefGoogle Scholar
Aoyama, K., and Freter, A. 1991 Fechamiento de los artefactos de obsidiana de La Entrada por medio del método de hidratación. In Investigaciones arqueológicas en la región de La Entrada, edited by Nakamura, S., Aoyama, K., and Uratsuji, E., pp. 8285. Instituto Hondureño de Antropología e Historia, San Pedro Sula, Honduras.Google Scholar
Aoyama, K., and Glascock, M. 1991 Análisis de activación neutrónica (AAN) para identificar las fuentes de obsidiana-prueba ciega de los resultados de análisis visual. In Investigaciones arqueológicas en la región de La Entrada, edited by Nakamura, S., Aoyama, K., and Uratsuji, E., pp. 8082. Instituto Hondureño de Antropología e Historia, San Pedro Sula, Honduras.Google Scholar
Ashmore, Wendy 1991 Site-Planning Principles and Concepts of Directionality Among the Ancient Maya. Latin American Antiquity 2: 199226.CrossRefGoogle Scholar
Brady, J. 1988 Analysis of Obsidian from Naj Tunich, Peten, Guatemala. In Obsidian Dates IV: A Compendium of the Obsidian Hydration Determinations Made at the UCLA Obsidian Hydration Laboratory, edited by Meighan, Clement W. and Scalise, Janet L., pp. 120127. Monograph No. XXIX. Institute of Archaeology, University of California, Los Angeles.Google Scholar
Braswell, G. 1992 Obsidian-Hydration Dating, the Coner Phase, and Revisionist Chronology at Copan, Honduras. Latin American Antiquity 3: 130147.CrossRefGoogle Scholar
Clark, D.L. 1961a The Application of the Obsidian Dating Method to the Archaeology of Central California. Unpublished Ph.D. dissertation, Department of Anthropology, Stanford University, Stanford, CA.Google Scholar
Clark, D.L. 1961b The Obsidian Dating Method. Current Anthropology 2: 111114.CrossRefGoogle Scholar
Cleland, J. 1990 Induced Hydration Dating at Coso: Part III. Paper presented at the 24th Annual Meeting of the Society for California Archaeology,Foster City.Google Scholar
Cobean, Robert H., Vogt, James R., Glascock, Michael D., and Stocker, Terrance L. 1991 High-precision Trace-Element Characterization of Major Mesoamerican Obsidian Sources and Further Analyses of Artifacts from San Lorenzo Tenochtitlán, Mexico. Latin American Antiquity 2: 6991.CrossRefGoogle Scholar
Dillon, B., Graham, J.A., Scalise, J.L., and Wood, F. 1988 Preliminary Obsidian Hydration Results from Pacific Piedmont, Guatemala: Abaj Takalik, Retalhuleu. In Obsidian Dates IV: A Compendium of the Obsidian Hydration Determinations Made at the UCLA Obsidian Hydration Laboratory, edited by Meighan, Clement W. and Scalise, Janet L., pp. 128129. Monograph No. XXIX. Institute of Archaeology, University of California, Los Angeles.Google Scholar
Dillon, Brian D., and Wood, Frank 1988 Lowland Maya Obsidian Hydration: Results from Salinas de los Nueve Cerros, Guatemala. In Obsidian Dates IV: A Compendium of the Obsidian Hydrations Determinations Made at the UCLA Obsidian Hydration Laboratory, edited by Meighan, Clement W. and Scalise, Janet L., pp. 113119. Monograph No. XXIX. Institute of Archaeology, University of California, Los Angeles.Google Scholar
Dixon, Keith A. 1966 Obsidian Dates from Temesco, Valley of Mexico. American Antiquity 31: 640643.CrossRefGoogle Scholar
Drennan, Robert D. 1984 Long-Distance Movement of Goods in the Mesoamerican Formative and Classic. American Antiquity 49: 2743.CrossRefGoogle Scholar
Elam, J.M., Glascock, M.D., and Neff, H. 1992 Source Identification and Hydration Dating of Obsidian Artifacts from Oaxaca, Mexico: Preliminary Results. Paper presented at the 28th International Symposium on Archaeometry, Los Angeles.Google Scholar
Ericson, Jonathan 1975 New Results in Obsidian Hydration Dating. World Archaeology 7: 151159.CrossRefGoogle Scholar
Ericson, Jonathan 1977 Evolution of Prehistoric Exchange Systems: Results of Obsidian Dating and Tracing. Unpublished Ph.D. dissertation, Department of Anthropology, University of California, Los Angeles.Google Scholar
Evans, Clifford, and Meggers, Betty J. 1960 A New Dating Method Using Obsidian: Part II. American Antiquity 25: 523537.CrossRefGoogle Scholar
Evans, Susan, and Freter, AnnCorinne 1989 Hydration Analysis of Obsidian from Cihuatecpan, an Aztec Period Village in Mexico. Paper presented at the 54th Annual Meeting of the Society for American Archaeology, Atlanta.Google Scholar
Fash, William 1983 Maya State Formation: A Case Study and Its Implications. Unpublished Ph.D. dissertation, Department of Anthropology, Harvard University, Cambridge, MA.Google Scholar
Findlow, Frank J., and Bennett, Victoria C. 1978 A Note on the West Mexican Obsidian Hydration Rates. In Obsidian Dates II: A Compendium of the Obsidian Hydration Determinations Made at the UCLA Obsidian Hydration Laboratory, edited by Meighan, Clement W. and Vanderhoeven, P.I., pp. 127132. Monograph No. VI. Institute of Archaeology, University of California, Los Angeles.Google Scholar
Findlow, Frank J., Bennett, Victoria C., Ericson, Jonathan E., and De Alley, Suzanne P. 1975 A New Obsidian Hydration Rate for Certain Obsidians in the American Southwest. American Antiquity 40: 344348.CrossRefGoogle Scholar
Ford, A. 1988 Report of the Obsidian Hydration Measurements on the Tikal-Yaxha Collection. In Obsidian Dates IV: A Compendium of the Obsidian Hydration Determinations Made at the UCLA Obsidian Hydration Laboratory, edited by Meighan, Clement W. and Scalise, Janet L., pp. 142143. Monograph No. XXIX. Institute of Archaeology, University of California, Los Angeles.Google Scholar
Freter, AnnCorinne 1988 The Classic Maya Collapse at Copan, Honduras: A Regional Settlement Perspective. Unpublished Ph.D. dissertation, Department of Anthropology, Pennsylvania State University, University Park.Google Scholar
Freter, AnnCorinne 1992a The Copan Obsidian Sourcing Project. Proposal submitted to the Missouri University Research Reactor, University of Missouri, Columbia.Google Scholar
Freter, AnnCorinne 1992b Chronological Research at Copan: Methods and Implications. Ancient Mesoamerica 3: 117134.CrossRefGoogle Scholar
Freter, AnnCorinne 1994 The Classic Maya Collapse at Copan, Honduras: An Analysis of Maya Rural Settlement Trends. In Village Communities in Early Complex Societies, edited by Schwartz, G. and Falconer, S.. Smithsonian Institution Press, Washington, DC, in press.Google Scholar
Friedman, Irving, and Evans, Clifford 1968 Obsidian Dating Revisited. Science 152: 813814.CrossRefGoogle Scholar
Friedman, Irving, and Long, William 1976 Hydration Rate of Obsidian. Science 191: 327352.CrossRefGoogle ScholarPubMed
Friedman, Irving, and Smith, Robert L. 1958 The Deuterium Content of Water in Some Volcanic Glasses. Geochimica et Cosmochimica Acta 15: 218228.CrossRefGoogle Scholar
Friedman, Irving, and Smith, Robert L. 1960 A New Method Using Obsidian Dating: Part I. American Antiquity 25: 476522.CrossRefGoogle Scholar
Friedman, Irving, Smith, Robert L., and Long, William D. 1966 The Hydration of Natural Glass and the Formation of Perlite. Bulletin of the Geological Society of America 77: 323330.CrossRefGoogle Scholar
Friedman, Irving, and Trembour, Fred 1983 Obsidian Hydration Dating Update. American Antiquity 48: 544547.CrossRefGoogle Scholar
Gibbon, D.L., and Michels, J.W. 1967 Electron Microscope and Optical Observations of Obsidian Hydration. Proceedings of the Electron Microscopy Society of America 25: 2527.Google Scholar
Glascock, M.D., Elam, J., and Cobean, R. 1988 Differentiation of Obsidian Sources in Mesoamerica. Archaeometry '88, pp. 245251. Proceedings of the 26th International Symposium on Archaeometry, Toronto.Google Scholar
Glascock, M.D., Neff, H., Stryker, K.S., and Johnson, T.N. 1993 Sourcing Archaeological Obsidian by an Abbreviated NAA Procedure. Journal of Radioanalytical and Nuclear Chemistry, Articles, in press.CrossRefGoogle Scholar
Gordus, A.A., Fink, W.C., Hill, M.E., Purdy, J.C., and Wilcox, T.R. 1967 Identification of the Geologic Origins of Archaeological Artifacts: An Automated Method of Na and Mn Neutron Activation Analysis. Archaeomerry 10: 8796.CrossRefGoogle Scholar
Graham, Elizabeth, and Pendergast, David M. 1989 Obsidian Hydration Dates From Tipu and Lamanai, Belize: Implications for the Assessment of Spanish Impact on Sixteenth-Century Maya Trade Networks. Manuscript on file, Department of Anthropology, York University, York, Ontario.Google Scholar
Green, R.C., Brooks, R.R., and Reeves, R.D. 1967 Characterization of New Zealand Obsidians by Emission Spectroscopy. New Zealand Journal of Science 10: 675682.Google Scholar
Hatch, James W., Michels, Joseph W., Stevenson, Christopher M., Scheetz, Barry E., and Geidel, Richard A. 1990 Hopewell Obsidian Studies: Behavioral Implications of Recent Sourcing and Dating Research. American Antiquity 55: 461479.CrossRefGoogle Scholar
Hammond, Norman 1989 Obsidian Hydration Dating of Tecep Phase Occupation at Nohmul, Belize. American Antiquity 54: 513521.CrossRefGoogle Scholar
Hench, Larry L., and Clark, D.E. 1978 Physical Chemistry of Surface Glasses. Journal Of Non-Crystal Solids 28: 83105.CrossRefGoogle Scholar
Hurtado de Mendoza, Luis 1977 Obsidian Studies and the Archaeology of the Valley of Gua temala. Unpublished Ph.D. dissertation, Department of Anthropology, Pennsylvania State University, University Park.Google Scholar
Hurtado de Mendoza, Luis, and Jester, William A. 1978 Obsidian Sources in Guatemala: A Regional Approach. American Antiquity 43: 424435.CrossRefGoogle Scholar
Kimberlin, J. 1976 Obsidian Hydration Rate Determinations on Chemically Characterized Samples. In Advances in Obsidian Glass Studies, edited by Taylor, R.E., pp. 6380. Noyes, Park Ridge, NJ.Google Scholar
Lanford, W.A. 1978 N-15 Hydration Profiling: Scientific Implications. Nuclear Instrument Methods 149: 17.CrossRefGoogle Scholar
Laursen, T., and Lanford, W.A. 1978 Hydration of Obsidian. Nature 276: 153156.CrossRefGoogle Scholar
Layton, T.N. 1972 A 12,000 Year Obsidian Hydration Record of Occupation, Abandonment and Lithic Change from the Northwestern Great Basin. Tebiwa 15: 2228.Google Scholar
Leach, B.F., and Hamel, G. 1984 The Influence of Archaeological Soil Temperatures on Obsidian Dating In New Zealand. New Zealand Journal of Science 27: 399408.Google Scholar
Lee, Richard 1969 Chemical Temperature Integration. Journal Of Applied Meteorology 8: 423430.2.0.CO;2>CrossRefGoogle Scholar
Mahood, Gail 1988 Obsidian Source Heterogeneity and Uniqueness: An Example from Western Mexico. In Obsidian Dates IV: A Compendium of the Obsidian Hydration Determinations Made at the UCLA Obsidian Hydration Laboratory, edited by Meighan, Clement W. and Scalise, Janet L., pp. 105112. Monograph No. XXIX. Institute of Archaeology, University of California, Los Angeles.Google Scholar
Linda, Manzanilla (editor) 1986 Cobá, Quintana Roo: Análisis de dos unidades mayas del horizonte clásico, México. Instituto de Investigaciones, Universidad Autónoma de México, Mexico.Google Scholar
Mazer, James J., Stevenson, Christopher, Elbert, William L., and Bates, John K. 1991 The Experimental Hydration of Obsidian as a Function of Relative Humidity and Temperature. American Antiquity 56: 504513.CrossRefGoogle Scholar
McKillop, Heather, and Jackson, L.J. 1988 Ancient Maya Obsidian Sources and Trade Routes. In Obsidian Dates IV: A Compendium of the Obsidian Hydration Determinations Made at the UCLA Obsidian Hydration Laboratory, edited by Meighan, Clement W. and Scalise, Janet L., pp. 130141. Monograph No. XXIX. Institute of Archaeology, University of California, Los Angeles.Google Scholar
Meighan, Clement W. 1976 Empirical Determination of Obsidian Hydration Rates from Archaeological Evidence. In Advances in Obsidian Glass Studies, edited by Taylor, R.E., pp. 106119. Noyes Press, Park Ridge, NJ.Google Scholar
Meighan, Clement W, Foote, Leonard J., and Aiello, Paul V. 1968a Obsidian Dating in West Mexican Archaeology. Science 160: 10691075.CrossRefGoogle Scholar
Meighan, Clement W, Foote, Leonard J., and Aiello, Paul V. 1968b Obsidian Dating Revisited. Science 162: 814.CrossRefGoogle Scholar
Meighan, Clement W., and Russell, G. (editors) 1981 Obsidian Dates III: A Compendium of the Obsidian Hydration Determinations Made at the UCLA Obsidian Hydration Laboratory. Monograph No. XVI. Institute of Archaeology, University of California, Los Angeles.Google Scholar
Meighan, Clement W., and Scalise, Janet L. (editors) 1988 Obsidian Dates IV: A Compendium of the Obsidian Hydration Determinations Made at the UCLA Obsidian Hydration Laboratory. Monograph No. XXIX. Institute of Archaeology, University of California, Los Angeles.Google Scholar
Meighan, Clement W., and Vanderhoeven, P.I. (editors) 1978 Obsidian Dates II: A Compendium of the Obsidian Hydration Determinations Made at the UCLA Obsidian Hydration Laboratory. Monograph No. VI. Institute of Archaeology, University of California, Los Angeles.Google Scholar
Michels, Joseph 1965 Lithic Serial Chronology Through Obsidian Hydration Dating. Unpublished Ph.D. dissertation, Department of Anthropology, University of California, Los Angeles.Google Scholar
Michels, Joseph 1967 Archaeology and Dating by Hydration of Obsidian. Science 158: 211214.CrossRefGoogle Scholar
Michels, Joseph 1969 Testing Stratigraphy and Artifact Reuse Through Obsidian Hydration Dating. American Antiquity 34: 1522.CrossRefGoogle Scholar
Michels, Joseph 1971 The Colonial Obsidian Industry of the Valley of Mexico, in Science and Archaeology, edited by Brill, R.H., pp. 251271. MIT Press, Boston.Google Scholar
Michels, Joseph 1973 Radiocarbon and Obsidian Dating: A Chronometric Framework for Kaminaljuyu. In The Pennsylvania State University Kaminaljuyu Project -1969–1970 Seasons, Part I: Mound Excavations, edited by Michels, Joseph and Sanders, William T., pp. 2165. Occasional Papers in Anthropology No. 9. Pennsylvania State University, University Park.Google Scholar
Michels, Joseph 1975 Archaeological Survey of the Axumite Kingdom, Tigre Province, Ethiopia. Paper presented at the Society of Africanist Archaeologists of America meeting, Boston.Google Scholar
Michels, Joseph 1982a Bulk Element Composition Versus Trace Element Composition in the Reconstruction of an Obsidian Source System. Journal of Archaeological Science 9: 113123.CrossRefGoogle Scholar
Michels, Joseph 1982b Hydration Rate Constants for Ixtepeque Obsidian, Jutiapa, Guatemala. MOHLAB Technical Report No. 7. MOHLAB, State College, PA.Google Scholar
Michels, Joseph 1986a Obsidian Hydration Dating. Endeavor (n.s.) 10: 97100.CrossRefGoogle Scholar
Michels, Joseph 1986b Hydration Rate Constants for Cerro de Las Navajas Obsidian Hidalgo, Mexico. MOHLAB Technical Report No. 6. MOHLAB, State College, PA.Google Scholar
Michels, J., and Bebrich, C. 1971 Obsidian Hydration Dating. In Dating Techniques for the Archaeologist, edited by Michael, H.N. and Han, E.K., pp. 164221. MIT Press, Boston.Google Scholar
Michels, Joseph, and Tsong, Ignatius S.T. 1980 Obsidian Hydration Dating: A Coming of Age. In Advances in Archaeological Method And Theory, vol. 3, edited by Schiffer, Michael B., pp. 405444. Academic Press, New York.CrossRefGoogle Scholar
Michels, Joseph, Tsong, Ignatius S.T., and Smith, George A. 1983 Experimentally Derived Hydration Rates in Obsidian Dating. Archaeometry 25: 107117.CrossRefGoogle Scholar
Michels, Joseph W., and Wetherington, Ronald 1979 The Kaminaljuyu Test Trenches: Component Assemblage Definition and Phasing. In Settlement Pattern Excavations at Kaminaljuyu, Guatemala, edited by Michels, Jospeh W., pp. 248265. Pennsylvania State University Monograph Series on Kaminaljuyu. Pennsylvania State University, University Park.Google Scholar
Murdy, Carson 1984 Prehistoric Man-Land Relationships through Time in the Valley Of Guatemala. Unpublished Ph.D. dissertation, Department of Anthropology, Pennsylvania State University, University Park.Google Scholar
Neff, Hector, Bove, Frederick J., Johnson, Taryn N., and Arroyo, Barbara 1993 Fechamiento a través de hidratación de obsidiana en la costa sur de Guatemala. Apuntes Arqueológicos 2(2), in press.Google Scholar
Nye, P.H., and Greenland, D.J. 1960 The Soil Under Shifting Cultivation. Commonwealth Agricultural Bureaux, Farnham Royal, England.Google Scholar
Oeschger, H. 1982 The Contribution of Radioactive and Chemical Dating to the Understanding of the Environmental System. In Nuclear and Chemical Dating Techniques, Interpreting the Environmental Record, edited by Currie, Lloyd A., pp. 542. American Chemical Society, Washington, DC.CrossRefGoogle Scholar
Paine, Richard 1993 Population Dynamics at Copan, Honduras, A.D. 450–1250: A Study In Archaeological Demography. Unpublished Ph.D. dissertation, Department of Anthropology, Pennsylvania State University, University Park.Google Scholar
Paine, R., and Freter, A. 1992 Late Classic Environmental Degradation in the Copan Valley: Impact on Household Survival. Paper presented at the 57th Annual Meeting of the Society for American Archaeology, Pittsburgh.Google Scholar
Person, D., and Widmer, R. 1992 Soil Chemistry and Archaeological Preservation at Copan. Paper presented at the 57th Annual Meeting of the Society for American Archaeology, Pittsburgh.Google Scholar
Renfrew, C., Dixon, J.E., and Cann, J.R. 1966 Obsidian and Early Cultural Contact in the Near East. Proceedings of the Prehistoric Society 32: 3072.CrossRefGoogle Scholar
Rice, Prudence M. 1986 An Obsidian Hydration Sequence in the Southern Maya Lowlands. Manuscript on file, Department of Anthropology, Southern Illinois University, Carbondale.Google Scholar
Rice, Prudence M., Michel, Helen V., Asaro, Frank, and Stross, Fred 1985 Provenience Analysis of Obsidians from the Central Peten Lakes Region, Guatemala. American Antiquity 50: 591604.CrossRefGoogle Scholar
Ridings, Rosanna 1991 Obsidian Hydration Dating: The Effects of Mean Exponential Ground Temperature and Depth of Artifact Recovery. Journal of Field Archaeology 18: 7785.Google Scholar
Ross, C.S., and Smith, R.L. 1955 Water and Other Volatiles in Volcanic Glasses. American Mineralogist 40: 10711089.Google Scholar
Rue, David 1986 A Palynological Analysis of Prehispanic Human Impact in the Copan Valley, Honduras. Unpublished Ph.D. dissertation, Depart ment of Anthropology, Pennsylvania State University, University Park.Google Scholar
Rue, David 1987 Early Agriculture and Early Postclassic Occupation in Western Honduras. Nature 326: 285286.CrossRefGoogle Scholar
Sanchez, Pedro A. 1976 Properties and Management of Soils in the Tropics. John Wiley and Sons, New York.Google Scholar
Santley, Robert S. 1984 Obsidian Exchange, Economic Stratification and the Evolution of Complex Society in the Basin of Mexico. In Trade and Exchange in Early Mesoamerica. edited by Hirth, Kenneth G., pp. 4385. University of New Mexico Press, Albuquerque.Google Scholar
Scheetz, Barry E., and Stevenson, Christopher M. 1988 The Role of Resolution and Sample Preparation in Hydration Rim Measurement: Implications for Experimentally Determined Hydration Rates. American Antiquity 53: 110117.CrossRefGoogle Scholar
Sheehy, James J. 1991 Structure and Change in a Late Classic Maya Domestic Group at Copan, Honduras. Ancient Mesoamerica 2: 119.CrossRefGoogle Scholar
Smith, M., and Doershuk, J. 1991 Late Postclassic Chronology in Western Morelos, Mexico. Latin American Antiquity 2: 291310.CrossRefGoogle Scholar
Spence, M. 1978a Comments on the Teotihuacan Obsidian Hydration Measurements. In Obsidian Dates II: A Compendium of the Obsidian Hydration Determinations Made at the UCLA Obsidian Hydration Laboratory, edited by Meighan, Clement M. and Vanderhoeven, P.I., pp. 161164. Monograph No. VI. Institute of Archaeology, University of California, Los Angeles.Google Scholar
Spence, M. 1978b Comments on Hydration Readings from Atiquipaque, Guatemala. In Obsidian Dates II: A Compendium of the Obsidian Hydration Determinations Made at the UCLA Obsidian Hydration Laboratory, edited by Meighan, Clement M. and Vanderhoeven, P.I., pp. 165169. Monograph No. VI. Institute of Archaeology, University of California, Los Angeles.Google Scholar
Spence, M. 1984 Craft Production and Polity in Early Teotihuacan. In Trade and Exchange in Early Mesoamerica, edited by Hirth, Kenneth G., pp. 87114. University of New Mexico Press, Albuquerque.Google Scholar
Stevenson, Christopher M., Carpenter, J., and Scheetz, Barry E. 1989 Obsidian Dating: Recent Advances in the Experimental Determination and Application of Hydration Rates. Archaeometry 31: 193206.CrossRefGoogle Scholar
Stuart, D. 1992 Hieroglyphs and Archaeology at Copan. Ancient Mesoamerica 3: 169184.CrossRefGoogle Scholar
Taylor, R.E. 1976 Advances In Obsidian Glass Studies. Noyes Press, Park Ridge, NJ.Google Scholar
Tremaine, KimTaylor, R.E. 1989 Obsidian as a Time Keeper: An Investigation in Absolute and Relative Dating. Unpublished Master's thesis, Department of Anthropology, Sonoma State University, Sonoma, CA.CrossRefGoogle Scholar
Tsong, Ignatius S., Houser, C., Yusuf, N., Messier, R., White, W., and Michels, Joseph 1978 Obsidian Hydration Profiles Measured By Sputter-Inducted Optical Emission. Science 201: 339341.CrossRefGoogle ScholarPubMed
Upham, S., MacNeish, R., Galinat, W., and Stevenson, C. 1987 Evidence Concerning the Origin of Maiz de Ocho. American Anthropologist 89: 410419.CrossRefGoogle Scholar
Walters, Gary Rex 1978 Comments on Hydration Readings from Atiquipaque, Guatemala. In Obsidian Dates II: A Compendium of the Obsidian Hydration Determinations Made at the UCLA Obsidian Hydration Laboratory, edited by Meighan, Clement W and Vanderhoeven, P.I., pp. 170173. Monograph No. VI. Institute of Archaeology, University of California, Los Angeles.Google Scholar
Walters, Gary Rex 1981 Further Interpretations of Guatemala Hydration Readings. In Obsidian Dates III: A Compendium of the Obsidian Hydration Determinations Made at the UCLA Obsidian Hydration Laboratory, edited by Meighan, Clement W. and Russell, G., pp. 152154. Monograph No. XVI. Institute of Archaeology, University of California, Los Angeles.Google Scholar
Weaver, J.R., and Stross, F.H. 1965 Analysis by X-Ray Fluorescence of Some American Obsidians. Contributions of the University of California Archaeological Research Facility 1: 8993.Google Scholar
Webster, David L., and Freter, AnnCorinne 1990a Settlement History and the Classic Collapse at Copan: A Refined Chronological Perspective. Latin American Antiquity 1: 6685.CrossRefGoogle Scholar
Webster, David L., and Freter, AnnCorinne 1990b The Demography of Late Classic Copan. In Precolumbian Population History in the Maya Lowlands, edited by Culbert, T. Patrick and Rice, Don S., pp. 3762. University of New Mexico Press, Albuquerque.Google Scholar
Webster, David, Freter, AnnCorinne, and Rue, David 1993 The Obsidian Hydration Dating Project at Copan: A Regional Application and Why It Works. Latin American Antiquity 4, in press.CrossRefGoogle Scholar
Webster, David, and Gonlin, Nancy 1988 Household Remains of the Humblest Maya. Journal of Field Archaeology 15: 169190.Google Scholar
Webster, David, Sanders, William T., and Rossum, Peter van 1992 A Simulation of Copan Population History and Its Implications. Ancient Mesoamerica 3: 185198.CrossRefGoogle Scholar
Wingard, John 1993 The Role of Soils in the Development and Collapse of Classic Maya Civilization at Copan, Honduras. Unpublished Ph.D. dissertation, Department of Anthropology, Pennsylvania State University, University Park.Google Scholar
Wolfman, Daniel 1990 Mesoamerican Chronology and Archaeomagnetic Dating, A.D. 1–1200. In Archaeomagnetic Dating, edited by Eighmy, J.L. and Sternberg, R.S., pp. 261308. University of Arizona Press, Tucson.Google Scholar