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Radiocarbon Dates on Deglaciation, Cordillera Central, Northern Peruvian Andes

Published online by Cambridge University Press:  20 January 2017

P.W. Birkeland ,
D.T. Rodbell  and
S.K. Short
P.W. Birkeland
Affiliation:
Department of Geological Sciences, University of Colorado, Boulder, Colorado 80309 Department of Anthropology, University of Colorado, Boulder, Colorado 80309
D.T. Rodbell
Affiliation:
Department of Geological Sciences, University of Colorado, Boulder, Colorado 80309 Department of Anthropology, University of Colorado, Boulder, Colorado 80309
S.K. Short
Affiliation:
Department of Anthropology, University of Colorado, Boulder, Colorado 80309 Institute of Arctic and Alpine Research, University of Colorado, Boulder, Colorado 80309
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Abstract

Three radiocarbon dates along with relative-dating criteria place limits on the deglaciation history of Manachaque Valley, Cordillera Central. Ice retreated from the late-glacial maximum by at least 12,100 yr B.P. During ice retreat numerous moraines were deposited throughout the valley. Glacier cover was reduced to about half that of the last glacial maximum by at least 9700 yr B.P. and to less than a tenth by at least 6450 yr B.P. Because all dates are minimum, the dates and field data are consistent with little or no ice remaining by early Holocene. No unambiguous Younger Dryas moraines are present.

Type
Short Paper
Information
Quaternary Research , Volume 32 , Issue 1 , July 1989 , pp. 111 - 113
Copyright
University of Washington

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References

Andrews, J.T., (1975). Radiocarbon date list II from Cumberland Peninsula, Baffin Island, N.W.T., Canada Arctic and Alpine Research 7, 77–91 CrossRefGoogle Scholar
Birkeland, P.W. Colman, S.M. Burke, R.M. Shroba, R.R. Meierding, T.C., (1979). Nomenclature of alpine glacial deposits, or, what's in a name? Geology 7, 532–536 Google Scholar
Clapperton, C.M., (1983). The glaciation of the Andes Quaternary Science Reviews 2, 83–155 CrossRefGoogle Scholar
Clapperton, C.M. McEwan, C., (1985). Late Quaternary moraines in the Chimborazo area, Ecuador Arctic and Alpine Research 17, 135–142 CrossRefGoogle Scholar
Mangerud, J. Larsen, E. Longva, O. Sønstegaard, E., (1979). Glacial history of western Norway 15,000–10,000 B.P. Boreas 8, 179–187 Google Scholar
Mercer, J.H., (1983). Cenozoic glaciation in the southern Hemisphere Annual Review of Earth and Planetary Science 11, 99–132 Google Scholar
Mercer, J.H. Palacios, M.O., (1977). Radiocarbon dating of the last glaciation in Peru Geology 5, 600–604 Google Scholar
Tosi, J.A. Jr. Zonas de vida natural en el Peru Zona Andina Boletin Technico No. 5 (1960). Instituto Interamericano de Cienas Agricolas de la OEA Lima Google Scholar
Weberbauer, A., (1945). El Mundo Vegetal del los Andes Peruanos. Lima Estacion Experimental de la Molina Lima Google Scholar
Wright, H.E. Jr. Late-Pleistocene glaciation and climate around the Junín Plain, central Peruvian highlands Geografiska Annaler 65A, (1983). 35–43 CrossRefGoogle Scholar
Wright, H.E. Jr. Late glacial and late Holocene moraines in the Cerros Cuchpanga, central Peru Quaternary Research 21, (1984). 275–285 Google Scholar