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Isotopic Evidence of Holocene Climatic Change in the San Juan Mountains, Colorado

Published online by Cambridge University Press:  20 January 2017

Irving Friedman ,
Paul Carrara  and
Jim Gleason
Irving Friedman
Affiliation:
U.S. Geological Survey, DFC, MS 963, Denver, Colorado 80225, USA
Paul Carrara
Affiliation:
U.S. Geological Survey, DFC, MS 913, Denver, Colorado 80225 USA
Jim Gleason
Affiliation:
U.S. Geological Survey, DFC, MS 963, Denver, Colorado 80225, USA
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Abstract

The δD of cellulose from 14C-dated wood, collected in the San Juan Mountains of southwestern Colorado, decreased by about 45‰ from 9600 to 3100 yr B.P. and an additional 25‰ to the present. The wood samples are from trees that grew above present-day tree line and reflect a time of warmer average summer temperatures. These changes in δD are interpreted to indicate a major change during the Holocene in the sources of moisture, in the seasonality of precipitation, or in both.

Type
Short Paper
Information
Quaternary Research , Volume 30 , Issue 3 , November 1988 , pp. 350 - 353
Copyright
University of Washington

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References

Carrara, P.E., Mode, W.N., Rubin, M., Robinson, S.W., (1984). Deglaciation and postglacial timberline in the San Juan Mountains, Colorado. Quaternary Research. 21, 42-55.Google Scholar
Craig, H., (1961). Standard for reporting concentrations of deuterium and oxygen-18 in natural waters. Science. 133, 1833-1834.Google Scholar
Dansgaard, W., (1961). The isotopic composition of natural waters. Medd. om Groenland. 165, 1-120.Google Scholar
Edwards, T.W.D., Aravena, R.O., Fritz, P., Morgan, A.V., (1985). Interpreting paleoclimate from 18O and 2H in plant cellulose: Comparison with evidence from fossil insects and relict permafrost in southwestern Ontario. Canadian Journal of Earth Sciences. 22, 1720-1726.CrossRefGoogle Scholar
Epstein, S., Yapp, C.J., (1976). Climatic implications of the D H ratio of hydrogen in C-H groups in tree cellulose. Earth and Planetary Science Letters. 30, 252-261.Google Scholar
Friedman, I., Redfield, A.C., Schoen, B., Harris, J., (1964). The variation of the deuterium content of natural waters in the hydrologic cycle. Reviews of Geophysics. 2, 177-224.Google Scholar
Friedman, I., Gleason, J.D., (1980). Deuterium content of lignin and of the methyl and OH hydrogen of cellulose. Proceedings, International Meeting on Stable Isotopes in Tree Ring Research. New Paltz, N.Y. May 22–25, , 1979Lamont-Doherty Geological Observatory of Columbia University, 50-55.Google Scholar
Gonfiantini, R., (1978). Standards for stable isotope measurements in natural compounds. Nature (London). 271, 534-536.Google Scholar
Kutzbach, J.E., Guetter, P.J., (1986). The influence of changing orbital parameters and surface boundary conditions on climatic simulations for the past 18,000 years. Journal Atmospheric Science. 43, 1726-1759.Google Scholar
Libby, L.M., Pandolfi, L.J., (1974). Temperature dependence of isotope ratios in tree rings. Proceedings of the National Academy of Sciences (USA). 71, 2482-2486.Google Scholar
Markgraf, V., Scott, L., (1981). Lower timberline in central Colorado during the past 15,000 yr. Geology. 9, 231-234.Google Scholar
Schiegl, W.E., Vogel, J.C., (1970). Deuterium content of organic matter. Earth and Planetary Science Letters. 7, 307.Google Scholar
White, J.W.C., Cook, E.R., Lawrence, J.R., Broecker, W.S., (1985). The D H ratios of sap in trees: Implications for water sources and tree ring D H ratios. Geochimica et Cosmochimica Acta. 49, 237-246.Google Scholar
Wilson, A.T., Grinsted, M.J., (1975). The D H ratio of cellulose as a biochemical thermometer of use to study past climates. Nature (London). 257, 287-288.Google Scholar
Yapp, C.J., Epstein, S., (1977). Climatic implications of D H ratios of meteroic water over North America (9500-22,000 B.P.) as inferred from ancient wood cellulose C-H hydrogen. Earth and Planetary Science Letters. 34, 333-350.Google Scholar