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College of Science and Technology |
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College of Science and Technology |
| Associate Professor
of Geology Harte Research
Associate Texas A&M University
- Corpus Christi Voice: 361.825.2470 |
1996: Ph.D. Marine Geology. IFM-GEOMAR Leibniz Institute of Marine Sciences, Christian-Albrechts-University, Kiel, Germany
1993: Diplom (M.S.) Geology/Paleontology. Friedrich-Alexander-University, Erlangen, Germany
Much of my current work involves the study of fluid expulsion sites along the world's continental margins. Biogeochemical processes that control the formation of authigenic minerals (mostly carbonates and sulfates) are at the heart of this research. Together with my colleagues and students I am trying to understand some of the processes that are linked to the microbially mediated cycling of carbon, sulfur, and other elements in areas affected by the seepage of hydrocarbon-rich fluids and gases. By combining a variety of analytical techniques (sediment petrography, stable isotope analysis, and molecular biomarker approaches), we hope to decipher the complex biogeochemical reactions that govern these sites both in modern environments and in the fossil record. Some of the areas covered by my past or current research activities are listed below:
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Naehr, T.H., Eichhubl, P., Orphan, V.J., Hovland, M., Paull, C.K., Ussler III, W., Lorenson, T.D., and Greene, H.G. (2007): Authigenic carbonate formation at hydrocarbon seeps in continental margin sediments: A comparative study. Deep Sea Research Part II : Topical Studies in Oceanography, 54/11-13, 1268-1291.
Naehr, T.H., MacDonald, I.R., Bohrmann, G., and Escobar-Briones, E. (2007): Biogeochemistry of hydrocarbon seeps on the Campeche Escarpment, southern Gulf of Mexico. - Gulf Coast Association of Geological Societies Transactions, v. 57, 599-604.
Louchouarn, P., Naehr, T.H., Silliman, J., and Houel, S. (2006): Elemental, stable isotopic (∂13C), and molecular signatures of organic matter in late Pleistocene-Holocene sediments from the Peruvian margin (ODP Site 1229). In Jørgensen, B.B., D'Hondt, S.L., and Miller, D.J. (Eds.), Proc. ODP, Sci. Results, 201 [Online]. Available from World Wide Web: http://www-odp.tamu.edu/publications/201_SR/113/113.htm.
D’Hondt, S., Jørgensen, B.B., Miller, D.J., Batzke, A., Blake, R.. Cragg, B.A., Cypionka, H., Dickens, G.R., Ferdelman, T., Hinrichs, K.-U., Holm, N.G., Mitterer, R., Spivack, A., Wang, G., Bekins, B., Engelen, B., Ford, K., Gettemy, G., Rutherford, S., Sass, H., Skilbeck, C.G., Aiello, I.W., Guèrin, G., House, C, Inagaki, F., Meister, P., Naehr, T.H., Niitsuma, S., Parkes, R.J., Schippers, A., Smith, D.C., Teske, A., Wiegel, J., Padilla, C.N., Acosta, J.L.S., Wang, G., and Rutherford, S.D. (2004): Distributions of microbial activities in deep subseafloor sediments. – Science, 306/5705, 2216-2221.
MacDonald, I.R., Bohrmann, G., Escobar, E., Abegg, F., Blanchon, P., Blinova, V., Brückmann, W., Drews, M., Eisenhauer, A., Han, X.,Heeschen, K., Meier, F., Mortera, C., Naehr, T.H., Orcutt, B., Bernard, B., Brooks, J., and de Farágo, M. (2004): Asphalt volcanism and chemosynthetic life in the Campeche Knolls. - Science, 304/5673, 999-1002.
Orphan, V.J., Ussler III, W., Naehr, T.H., House, C.H., Hinrichs, K.-U., and Paull, C.K. (2004): Geological, geochemical, and microbiological heterogeneity of the seafloor around methane vents in the Eel River Basin, offshore California - Chemical Geology, 205/3-4, 265-289.
Ford, K.H., Naehr, T.H., Skilbeck, C.G., and the Leg 201 Scientific Party (2003): The use of infrared thermal imaging to identify gas hydrate in sediment cores. - In D’Hondt, S.L., Jørgensen, BB., Miller, D.J., et al., Proc. ODP, Init. Repts., 201, 1-20 [CD-ROM]. Available from: Ocean Drilling Program, Texas A&M University, College Station, TX 77845-9547, USA.
Stakes, D., Trehu, A.M., Goffredi, S.K., Naehr, T.H. and Duncan, R. (2002): Mass wasting, methane venting, and biological communities on the Mendocino transform fault. - Geology, 30/5, 407-410.
Naehr, T.H., Stakes, D.S., and Moore, W.S. (2000): Mass wasting, ephemeral fluid flow and barite deposition on the California Continental Margin. - Geology, 28/4, 315-318.
Naehr, T.H. & Bohrmann, G. (1999): Barium-rich authigenic clinoptilolite in sediments from the Japan Sea - A sink for dissolved barium? - Chemical Geology, 158/3-4, 227-244.
For a complete list of my publications, click here.
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| Contact me at thomas.naehr@tamucc.edu |
Last updated: 02/2009© TN |
