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Oxygen isotopes of bovid teeth as archives of paleoclimatic variations in archaeological deposits of the Ganga plain, India

  • Shikha Sharma (a1) (a2), Michael M Joachimski (a1), Heinz J Tobschall (a1), Indra B Singh (a2), Devi P Tewari (a3) and Rakesh Tewari (a4)...


Oxygen isotope analysis was performed on enamel phosphate of mammalian teeth from archaeological sites Kalli Pachchhim and Dadupur in the central Ganga plain and Charda in the northern Ganga plain. The bulk oxygen isotopic compositions of enamel phosphate from third molars (M3) of Bos indicus individuals belonging to different cultural periods were used to understand the climatic changes during the past 3600 cal yr B.P. Oxygen isotope ratios indicate humid conditions around 3600 cal yr B.P., followed by a trend toward drier conditions until around 2800 cal yr B.P. Then from 2500 to 1500 cal yr B.P. there is a trend toward higher humidity, followed by the onset of a dry period around 1300 cal yr B.P. The study of intratooth δ18O variations in teeth from different periods demonstrates that the monsoon seasonality was prominent. Spatial changes in the amount of annual rainfall are also reflected in the δ18O values. Teeth derived from areas with intense rainfall have lighter isotope ratios compared to teeth from regions receiving less rain, but they show similar seasonal patterns. The long-term paleoclimatic variations reflected by fluctuations in bulk δ18Op values from M3 teeth match well with the regional paleoenvironmental records and show a good correlation to the cultural changes that took place during this time span in Ganga plain.


Corresponding author

*Corresponding author. Present address: Department of Geological and Atmospheric Sciences, 253 Science 1, Iowa State University, Ames, IA 50011, USA. E-mail address: Sharma).


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Balasse, M., (2002). Reconstructing dietary and environmental history from enamel isotopic analysis: time resolution of intra-tooth sequential sampling. International Journal of Osteoarchaeology 12, 155 165.
Balasse, M., (2003). Potential biases in sampling design and interpretation of intra-tooth isotope analysis. International Journal of Osteoarchaeology 13, 3 10.
Brown, W.A.B., Christofferson, P.V., Massler, M., Weiss, M.B., (1960). Post natal tooth development in cattle. American Journal of Veterinary Research 21, 7 34.
Bryant, J.D., Koch, P.L., Froelich, P.N., Showers, W.J., Genna, B.J., (1996). Oxygen isotope partitioning between phosphate and carbonate in mammalian apatite. Geochimica et Cosmochimica Acta 60, 5145 5148.
Bryant, J.D., Luz, B., Froelich, P.N., (1994). Oxygen isotopic composition of fossil horse tooth phosphate as a record of continental palaeoclimate. Palaeogeography, Palaeoclimatology, Palaeoecology 107, 303 316.
Clementz, M.T., Koch, P.L., (2001). Differentiating aquatic mammal habitat and foraging ecology with stable isotopes in tooth enamel. Oecologia 129, 461 472.
Crowson, R.A., Showers, W.J., Wright, E.K., Hoering, T.C., (1991). Preparation of phosphate samples for oxygen isotope analysis. Analytical Chemistry 63, 2397 2400.
Dansgaard, W., (1964). Stable isotopes in precipitation. Tellus 16, 436 468.
Denniston, R.F., González, L.U., Asmerom, Y., Sharma, R.H., Reagan, M.K., (2000). Speleothem evidence for changes in Indian summer monsoon precipitation over last ∼2300 years. Quaternary Research 53, 196 202.
Dhavalikar, M.K., (2001). Green imperialism: monsoon in antiquity and human response. Man and Environment XXXVI, 18 28.
Feranec, R.S., MacFadden, B.J., (2000). Evolution of the grazing niche in Pleistocene mammals from Florida: evidence from stable isotopes. Palaeogeography, Palaeoclimatology, Palaeoecology 162, 155 169.
Fricke, H.C., Clyde, W.C., O'Neil, J.R., (1998). Intra-tooth variations in δO18 (PO4) of mammalian tooth enamel as a record of seasonal variations in continental climate variables. Geochimica et Cosmochimica Acta 62, 1839 1850.
Fricke, H.C., O'Neil, J.R., (1996). Inter- and intratooth variation in the oxygen isotope composition of mammalian tooth enamel phosphate: implications for palaeoclimatological and palaeobiological research. Palaeogeography, Palaeoclimatology, Palaeoecology 126, 91 99.
Gadbury, C., Todd, L., Jahren, A.H., Amundson, R., (2000). Spatial and temporal variations in the isotopic composition of bison tooth enamel from the early Holocene Hudson–Meng bone bed, Nebraska. Palaeogeography, Palaeoclimatology, Palaeoecology 157, 79 93.
Iacumin, P., Bocherens, H., Mariotti, A., Longinelli, A., (1996). Oxygen isotope analyses of co-existing carbonate and phosphate in biogenic apatite: a way to monitor diagenetic alteration of bone phosphate?. Earth Planetary Science Letters 142, 1 6.
IAEA/WHO, , (2001). Global Network of Isotopes in Precipitation. The GNIP Database. International Atomic Energy Agency, Vienna, Austria.Accessible at
Kohn, M.J., (1996). Predicting animal δ18O: accounting for diet and physiological adaptation. Geochimica et Cosmochimica Acta 60, 4811 4829.
Kohn, M.J., Schoeninger, M.J., Valley, J.W., (1998). Variability in oxygen isotope compositions of herbivore teeth: reflections of seasonality or developmental physiology. Chemical Geology 152, 97 112.
Lécuyer, C., Grandjean, P., O'Neil, J.R., Capeta, H., Martineau, F., (1993). Thermal excursions in the ocean at the Cretaceous–Tertiary boundary (northern Morocco): δ18O record of phosphatic fish debris. Palaeogeography, Palaeoclimatology, Palaeoecology 105, 235 243.
Lee-Thorp, J., Sponheimer, M., (2003). Three case studies used to reassess the reliability of fossil bone and enamel isotope signals for paleodietary studies. Journal of Anthropological Archaeology 22, 208 216.
Liu, K.-B., Yao, Z., Thompson, L.G., (1998). A pollen record of Holocene climatic changes from the Dunde ice cap, Quinghai–Tibetan Plateau. Quaternary Research 26, 135 138.
O'Neil, J.R., Roe, J.L., Reinhardt, E., Blake, R.E., (1994). A rapid and precise method of oxygen isotope analysis of biogenic phosphate. Israel Journal of Earth Sciences 43, 203 212.
Rozanski, K., Araguas-Araguas, L., Gonfiantini, R., (1993). Isotopic patterns in modern global precipitation. Swart, P.K., Lohmann, K.C., McKenzie, J., Savin, S., Climate change in continental isotopic records, Geophysical Monograph vol. 78, American Geophysical Union, Washington, DC.1 36.
Sharma, S., Joachimski, M., Sharma, M., Tobschall, H.J., Singh, I.B., Sharma, C., Chauhan, M.S., Morgenroth, G., (2004). Late Glacial and Holocene environmental changes in Ganga plain, northern India. Quaternary Science Reviews 23, 139 153.
Sirocko, F., Garbe-Schonberg, D., McIntyre, A., Molfino, B., (1996). Teleconnections between the subtropical monsoons and high-latitude climates during the last deglaciation. Science 272, 526 529.
Sponheimer, M., Lee-Thorp, J.A., (1999). Oxygen isotopes in enamel carbonate and their ecological significance. Journal of Archaeological Science 120, 723 728.
Stuart-Williams, H., Le, Q., Schwarcz, H.P., (1997). Oxygen isotopic determination of climatic variation using phosphate from beaver bone, tooth enamel and dentine. Geochimica et Cosmochimica Acta 61, 2539 2550.
Stuiver, M., Reimer, P.J., Bard, E., Beck, J.W., Burr, G.S., Hughen, K.A., Kromer, B., McCormac, F.G., Plicht, J.v.d., Spurk, M., (1998). Intcal98 radiocarbon age calibration, 24,000–0 cal BP. Radiocarbon 40, 1041 1083.
Vennemann, T.W., Fricke, H.C., Blake, R.E., O'Neil, J.R., Colman, A., (2002). Oxygen isotope analysis of phosphates: a comparison of techniques for analysis of Ag3PO4 . Chemical Geology 185, 321 336.
Wei, K., Gasse, F., (1999). Oxygen isotopes in lacustrine carbonates of west China revisited: implications for post glacial changes in summer monsoon circulation. Quaternary Science Reviews 18, 1315 1334.
Wenzel, B., Lécuyer, C., Joachimski, M.M., (2000). Comparing oxygen isotope records of Silurian calcite and phosphate—δ18O compositions of brachiopods and conodonts. Geochimica et Cosmochimica Acta 64, 1859 1872.
Wiedemann, F.B., (2000). Experimental design on enamel deposition in sheep: implications for sampling strategies for stable analyses. Journal of Human Evolution 38, A34.
Zazzo, A., Mariotti, A., Lecuyer, C., Heintz, E., (2002). Intra-tooth isotope variations in late Miocene bovid enamel from Afghanistan: palaeobiological, taphonomic and climatic implications. Palaeogeography, Palaeoclimatology, Palaeoecology 186, 145 161.

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Oxygen isotopes of bovid teeth as archives of paleoclimatic variations in archaeological deposits of the Ganga plain, India

  • Shikha Sharma (a1) (a2), Michael M Joachimski (a1), Heinz J Tobschall (a1), Indra B Singh (a2), Devi P Tewari (a3) and Rakesh Tewari (a4)...


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