Neotectonics of coastal Chile

Work on this project involves study of marine terrace sequences along the north central coast of Chile, with the aim of elucidating the effects of subduction characteristics on upper plate deformation. Methods employed in developing terrace chronologies include amino acid geochronology, Th/U dating of coral, and Sr isotopic analysis of molluscs.

  

Marine terraces, Caleta los Hornos, Chile
Publications:( * denotes Colorado College student co-author)

  • Paskoff, R., Leonard, E.M., Novoa, J.E., Ortlieb, L., Radtke, U., and Wehmiller, J., 1995, Field Meeting in the La Serena-Coquimbo Bay area (Chile) – Guidebook for IGCP Project 367 Fieldtrip: 69p.
  • Leonard, E.M. and Wehmiller, J.F., 1992, Low net uplift rates and terrace reoccupation inferred from mollusk aminostratigraphy, Coquimbo Bay area, Chile: Quaternary Research 37, 246-259
  • Leonard, E.M. and Wehmiller, J.F., 1991, Holocene uplift at Caleta Michilla, northern Chilean coast: Revista Geologia de Chile 18, 81-86.
  • Hsu, J.T., Leonard, E.M., and Wehmiller, J.F. 1989, Aminostratigraphy of Peruvian and Chilean marine terraces: Quaternary Science Reviews 8, 255-262.
Abstracts:

  • Leonard, E.M., Paces, J.B., Wehmiller, J.F., Muhs, D.R., Simmons, K.R., 2014, Multiple geochronometer study of a high-elevation Pleistocene marine terrace in northern Chile – Implications for coastal uplift rates. Geological Society of America Abstracts with Programs.
  • Leonard, E.M., Muhs, D.R, Ludwig, K.R., and Wehmiller, J.F., 1994, Coral Uranium-series ages and mollusc amino-acid ratios from uplifted marine terrace deposits, Morro de Copiapo, north-central Chile: American Quaternary Association Program and Abstracts, 13th biennial meeting, 223.
  • Wehmiller, J.F., Hsu, J.T., and Leonard, E.M., 1988, Latitudinal isochrons of amino acid enantiometric ratios in Quaternary molluscs: implications of North and South American Pacific coast data for aminostratigraphy and effective Quaternary temperatures: Geological Society of America Abstract with Programs 20, A53.
  • Leonard, E., Wehmiller, J., and *Ferguson, D., 1988, Rates of Quaternary uplift along the north central coast of Chile: results of amino acid dating of marine terrace faunas: Una Revista de Geologia Andena 39, 21.
  • Leonard, E.M., Merecki, J.E., and Wehmiller, J.F., 1987, Amino acid age estimates for late Pleistocene terraces in northern Chile: implications for uplift rates: Geological Society of America Abstract with Programs 19, 744.

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