Alexander P Wolfe

Summary

Affiliation: University of Alberta
Country: Canada

Publications

  1. pmc Pristine Early Eocene wood buried deeply in kimberlite from northern Canada
    Alexander P Wolfe
    Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Canada
    PLoS ONE 7:e45537. 2012
  2. ncbi request reprint Spectrofluorescence of sediment humic substances and historical changes of lacustrine organic matter provenance in response to atmospheric nutrient enrichment
    Alexander P Wolfe
    Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Canada
    Environ Sci Technol 36:3217-23. 2002
  3. pmc A new proposal concerning the botanical origin of Baltic amber
    Alexander P Wolfe
    Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G 2E3, Canada
    Proc Biol Sci 276:3403-12. 2009
  4. pmc Insect outbreaks produce distinctive carbon isotope signatures in defensive resins and fossiliferous ambers
    Ryan C McKellar
    Department of Earth and Atmospheric Sciences, University of Alberta, 1 26 Earth Sciences Building, Edmonton, Alberta, Canada
    Proc Biol Sci 278:3219-24. 2011
  5. pmc Over three millennia of mercury pollution in the Peruvian Andes
    Colin A Cooke
    Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB, Canada T6G 2E3
    Proc Natl Acad Sci U S A 106:8830-4. 2009
  6. ncbi request reprint A millennium of metallurgy recorded by lake sediments from Morococha, Peruvian Andes
    Colin A Cooke
    Department of Geology and Planetary Science, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
    Environ Sci Technol 41:3469-74. 2007
  7. doi request reprint Reliance on (210)Pb chronology can compromise the inference of preindustrial Hg flux to lake sediments
    Colin A Cooke
    Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta T6G 2E3, Canada
    Environ Sci Technol 44:1998-2003. 2010
  8. pmc Quantifying recent ecological changes in remote lakes of North America and Greenland using sediment diatom assemblages
    William O Hobbs
    Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta, Canada
    PLoS ONE 5:e10026. 2010
  9. ncbi request reprint Response to comment on "a diverse assemblage of late cretaceous dinosaur and bird feathers from canadian amber"
    Ryan C McKellar
    Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta, T6G 2E3, Canada
    Science 335:796. 2012
  10. doi request reprint A diverse assemblage of Late Cretaceous dinosaur and bird feathers from Canadian amber
    Ryan C McKellar
    Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta T6G 2E3, Canada
    Science 333:1619-22. 2011

Collaborators

Detail Information

Publications12

  1. pmc Pristine Early Eocene wood buried deeply in kimberlite from northern Canada
    Alexander P Wolfe
    Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Canada
    PLoS ONE 7:e45537. 2012
    ..Canadian kimberlites offer Lagerstätte-quality preservation of wood from a region with limited alternate sources of paleobotanical information...
  2. ncbi request reprint Spectrofluorescence of sediment humic substances and historical changes of lacustrine organic matter provenance in response to atmospheric nutrient enrichment
    Alexander P Wolfe
    Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Canada
    Environ Sci Technol 36:3217-23. 2002
    ....
  3. pmc A new proposal concerning the botanical origin of Baltic amber
    Alexander P Wolfe
    Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G 2E3, Canada
    Proc Biol Sci 276:3403-12. 2009
    ....
  4. pmc Insect outbreaks produce distinctive carbon isotope signatures in defensive resins and fossiliferous ambers
    Ryan C McKellar
    Department of Earth and Atmospheric Sciences, University of Alberta, 1 26 Earth Sciences Building, Edmonton, Alberta, Canada
    Proc Biol Sci 278:3219-24. 2011
    ..Plant exudate δ(13)C values constitute a sensitive monitor of ecological stress in both modern and ancient forest ecosystems, and provide considerable insight concerning the genesis of amber in the geological record...
  5. pmc Over three millennia of mercury pollution in the Peruvian Andes
    Colin A Cooke
    Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB, Canada T6G 2E3
    Proc Natl Acad Sci U S A 106:8830-4. 2009
    ..Our results demonstrate the existence of a major Hg mining industry at Huancavelica spanning the past 3,500 years, and place recent Hg enrichment in the Andes in a broader historical context...
  6. ncbi request reprint A millennium of metallurgy recorded by lake sediments from Morococha, Peruvian Andes
    Colin A Cooke
    Department of Geology and Planetary Science, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
    Environ Sci Technol 41:3469-74. 2007
    ..Our results represent the first evidence for pre-Colonial smelting in the central Peruvian Andes, and corroborate the sensitivity of lake sediments to pre-Colonial metallurgical activity suggested by earlier findings from Bolivia...
  7. doi request reprint Reliance on (210)Pb chronology can compromise the inference of preindustrial Hg flux to lake sediments
    Colin A Cooke
    Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta T6G 2E3, Canada
    Environ Sci Technol 44:1998-2003. 2010
    ..The incorporation of (14)C dates may therefore be necessary if accurate Hg flux histories are sought from oligotrophic lake sediments...
  8. pmc Quantifying recent ecological changes in remote lakes of North America and Greenland using sediment diatom assemblages
    William O Hobbs
    Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta, Canada
    PLoS ONE 5:e10026. 2010
    ..Diatom-based paleolimnological syntheses offer an effective tool for retrospective assessments of past and ongoing changes in remote lake ecosystems...
  9. ncbi request reprint Response to comment on "a diverse assemblage of late cretaceous dinosaur and bird feathers from canadian amber"
    Ryan C McKellar
    Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta, T6G 2E3, Canada
    Science 335:796. 2012
    ..However, reported observations and their further refinement herein are insufficient to falsify the hypothesized dinosaurian origin for protofeathers...
  10. doi request reprint A diverse assemblage of Late Cretaceous dinosaur and bird feathers from Canadian amber
    Ryan C McKellar
    Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta T6G 2E3, Canada
    Science 333:1619-22. 2011
    ..Because amber preserves feather structure and pigmentation in unmatched detail, these fossils provide novel insights regarding feather evolution...
  11. pmc Mid-Miocene cooling and the extinction of tundra in continental Antarctica
    Adam R Lewis
    Department of Earth Sciences, Boston University, Boston, MA 02215, USA
    Proc Natl Acad Sci U S A 105:10676-80. 2008
    ..07 +/- 0.05 Ma and 13.85 +/- 0.03 Ma. These results provide novel constraints for the timing and amplitude of middle-Miocene cooling in Antarctica and reveal the ecological legacy of this global climate transition...
  12. doi request reprint Atmospheric science. Sprucing up Greenland
    Eric J Steig
    Department of Earth and Space Sciences, University of Washington, Seattle, WA 98195, USA
    Science 320:1595-6. 2008