- Dr. Peter LetourneauAdjunct Associate Research ScientistLamont-Doherty Earth ObservatoryBiology and Paleo Environment206F Geoscience61 Route 9W - PO Box 1000PalisadesNY10964-8000USPhone:(845) 365-8621letour@ldeo.columbia.eduFields of interest:Sedimentology, stratigraphy, basin analysis, paleoenvironments, environmental planning

