Dr. Timothy Filley
 Dr. Timothy Filley

Associate Professor

E-mail: filley@purdue.edu

Curriculum Vitae <pdf>

Associated Website(s):Filley Biogeochemistry Research Group, Purdue Climate Change Research Center, Purdue Stable Isotope (PSI) Facility, Atmospheric-Surface Interactions (ASI)

 

Education

Ph.D.- Pennsylvania State University.

Research Interests

Molecular stable-isotope biogeochemistry, microbial cycling of carbon and nitrogen, formation of high sulfur sediments, preservation of lipids and macromolecules.

Teaching Interests

EAS 109 The Dynamic Earth

Awards and Honors

  • National Chair and Program Chair -Geochemistry Division of the American Chemical Society 2007-2009

  • Purdue University Seeds for Success Award, 2004

  • Carnegie Institution of Washington Post Doctoral Research Fellow, 1997-1999

Professional Experience

  • Associate Professor, Department of Earth and Atmospheric Sciences, Purdue University (2006)

  • Assistant Professor, Department of Earth and Atmospheric Sciences, Purdue University (2000- 2006).

  • NASA/CIW Astrobiology Post Doctoral Fellow (1998-2000).

  • Carnegie Post Doctoral Fellow : (1997- 1998) Geophysical Laboratory, Carnegie Institution of Washington.

Selected Publications

  • Crow, S.E., Filley, T.R., McCormick, M., Conyers, G., Gamblin D., (2008) Invasive earthworms and forest successional stage interact to impact soil organic matter formation and chemistry through selective feeding of plant litter. Biogeochemistry-(available on-line. print date not yet set)

  • Nierop, K.G.J., and Filley, T.R. (2008) Simultaneous analysis of tannin and lignin signatures in soils by thermally assisted hydrolysis and methylation using 13Clabeled TMAH. Journal of Applied and Analytical Pyrolysis. 83 (2008) pp. 227-231.

  • Filley, T.R., Boutton T.W., Liao, J.D., Jastrow D. (2008) Chemical Changes to non-aggregated particulate soil organic matter following grassland-to-woodland transition in a subtropical savanna. Journal of Geophysical Research: Biogeosciences, 113 Issue: G3: G03009.

  • Lockwood, A.L., Filley, T.R., Rhodes, D., Shepson, P.B. (2008) Foliar uptake of atmospheric organic nitrates Geophysical Research Letter 35, Issue: 15: L15809.

  • Geib, S.M. Filley, T.R., Hatcher, P.G., Hoover, K., Nakagawa-Izumi, A., Sleighter, R., Tien, R., (2008) Lignin degradation in wood-feeding insects. Proceedings of the National Academy of Sciences-USA, 105 no. 35, 12932-12937.

  • Filley, T.R., McCormick, M.K., Crow, S.E., Szlavecz, K.E. Whigham, D.F., Johnston, C.T., van den Heuvel, R. (2008). Comparison of the chemical alteration trajectory of Liriodendron tulipifera L. leaf litter among forests with different earthworm abundance. Journal of Geophysical Research:Biogeosciences 113, G01027, doi:10.1029/2007JG000542.

  • Wysocki, LA., Filley T.R. and Bianchi, TS. (2008) Comparison of two methods for lignin analysis in natural samples: cupric oxide oxidation versus tetramethylammonium hydroxide thermochemolysis. Organic Geochemistry 39, 1454-1461.

  • Tokarz, JA. III., Ahn, MY., Leng, J., Filley, T.R. and Nies, L. (2008) Reductive debromination of polybrominated diphenyl ethers in anaerobic sediment and a biomimetic system. Environmental Science and Technology42, (4), pp 1157–1164.

  • Olchin, GP., Ogle, S., Frey, SD. Filley, T.R., Paustian, K.and Six J; (2008) Residue carbon incorporation into soil aggregates of no-tillage and full-inversion tillage dryland cropping systems. Soil Sci Soc Am J.; 72: 507-513.

  • Nierop, K.G.L. and Filley, T.R., (2007). Assessment of lignin and (poly-)phenol transformations in oak ( Quercus robur ) dominated soils by 13 C-TMAH thermochemolysis. Organic Geochemistry, 38, 551-565.

  • Dalzell, B.J., Filley, T.R., Harbor, J.M. (2007) The role of hydrology in annual organic carbon loads and terrestrial organic matter export from a midwestern agricultural watershed. Geochim. Cosmochim. Acta (2007), doi:10.1016/j.gca.2006.12.009.

  • Bianchi, T.S., Wysocki, L.A., Stewart, M., Filley, T.R. (2007) Temporal variability in terrestrially-derived sources of particulate organic carbon in the lower Mississippi River and its upper tributaries. Geochimica et Cosmochimica Acta 71, 4425-4437.

  • Sollins, P., Swanston, C., Kleber, M., Filley, T., Kramer, M., Crow, S., Caldwell, B., Lajtha,K., and Bowden, R. (2006) Organic C and N stabilization in a forest soil: evidence from sequential density fractionation. Soil Biology and Biochemistry, 38, 3313–33244.

  • Filley, T.R., Wang, Y., Nierop, K.G.L. (2006). The contribution of polyhydroxyl aromatic compounds to tetramethylammonium hydroxide lignin-based proxies. Organic Geochemistry, 36, 711-727.

  • Ahn, M.Y., Filley, T.R., Jafvert, C.T., (2006) Birnessite mediated debromination of decabromodiphenyl ether. Chemosphere 64 (11): 1801-1807

  • Ahn, M.Y., Filley, T.R., Jafvert C.T. (2006) Photodegradation of decabromodiphenyl ether adsorbed onto clay minerals, metal oxides, and sediment. Environmental Science and Technology 40 (1): 215-220.

  • Filley, T.R., Boutton, T.W. (2006) Ecosystems in flux: Molecular and stable isotope assessments of soil organic matter storage and dynamics. Soil Biology and Biochemistry 38 (11): 3181-3183 (commentary).

  • Dalzell, B.J., Filley, T.R., Harbor, J.M. (2005) Flood pulse influences on terrestrial organic matter export from an agricultural watershed. Journal of Geophysical Research: Biogeosciences,

  • Grannas, A. M., Shepson, P.B., Filley, T.R. (2004) The Photochemistry and Nature of Organic Matter in Arctic and Antarctic Snow. Global Biogeochemical Cycles 18, No. 1, GB1006

  • Bianchi T. S., Filley. T.R., Dria K. and Hatcher P.G. (2004) Temporal Variability in Sources of Dissolved Organic Carbon in the Lower Mississippi River . Geochimica et Cosmochimica Acta. 68, .

  • Cody, .D., Boctor, N.Z., Brandes, J.J., Filley, T.R., Hazen, R.M., Yoder H.S.Jr. (2004) Assaying the Catalytic Potential of Transition Metal Sulfides for Geochemical Carbon Fixation. Geochimica et Cosmochimica Acta.

  • Filley T.R., (2003) A ssessment of Fungal W ood Decay by Lignin Analysis using Tetramethylammonium Hydroxide (TMAH) and 13C-Labelled TMAH thermochemolysis ACS Series 845, Wood Deterioration and Preservation: Advances in Our changing World (Goodell, Nicholas and Schultz, eds) Chp. 7 , pgs. 119 - 139.

  • Filley T.R., Freeman K.H., Hatcher P.G. (2002). Biogeochemical controls on reaction of sedimentary organicmatter and aqueous sulfides in Holocene sediments of Mud Lake, Florida. Geochimica et Cosmochimica Acta 66 , 937-954 .

  • Filley T. R., Freeman K. H., Hatcher P.G., Bianchi T.S., Baskaran M., Colarusso, L.A. and Hatcher P.G. (2001). An isotopic biogeochemical assessment of shifts in organic matter input to Holocene sediments from Mud Lake, Florida. Organic Geochemistry 32, 1152-1167.

  • Filley T. R., Freeman K. H., Hatcher P.G., Wilkin, R. (2001). Biogeochemical controls On reaction of sedimentary organic matter and aqueous sulfides in Holocene sediments of Mud Lake, Flor-ida. Geochimica et Cosmochimica Acta, (In Press).

  • Filley T. R., Blanchette R.A., Simpson, E, Fogel, M. Nitrogen cycling by wood decomposing soft-rot fungi in the "King Midas tomb", Gordion, Turkey. decay fungi in the King Midas tomb, Gor-dion, Turkey. Proceedings of the National Academy of Sciences, (In Press).

  • Hazen R.M., Filley T.R., Goodfriend G. (2001). Selective adsorption of L- and D- amino acids on calcite: Implications for biochemical homochirality. Proceedings of the National Academy of Sci-ences, 98, no. 10, 5487-5490.

  • Session Chair, American Chemical Society, April, 2001, San Diego, CA. "The Biogeochemistry of Ter-restrial Organic Matter."

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