Brett Tipple

Research Assistant Professor

Contact Information
Work Phone: (801) 581-3545
Office Address: 502D ASB


B.S. Geological Sciences, Indiana University
Ph.D. Geochemistry, Yale University

Research Interests

My research interests are in the fields of plant ecology, isotope geochemistry, paleoclimatology, and paleoecology. I utilize stable isotope ratios and abundances of organic molecules to constrain the physical and environmental conditions of modern and ancient oceans, terrestrial ecosystems, and atmospheres. In addition, I use trace element analysis and strontium isotope ratios of organic tissues and waters to trace material history, biogeochemical cycling, and environmental interactions.


Chesson, L.A., Tipple, B.J., Howa, J.D., Bowen, G.J., Barnette, J.E., Cerling, T.E., and Ehleringer, J.R. (2014) Stable Isotopes in Forensics Applications, Treatise on Geochemistry, 2nd Edition, Volume 14, pp. 285-317.

Bataille, C., Mastalerz, M. Tipple, B.J., and Bowen, G.J. (2013) Influence of organic provenance and preservation on the carbon isotope variations of dispersed organics in ancient floodplain sediments, Geochemistry, Geophysics, Geosystems, 14, 11, 4874-4891.

Tipple, B.J., Chau, T., Chesson, L.A., Fernandez, D., and Ehleringer, J.R. (2013) Isolation of the strontium pools and isotope ratios in modern human hair, Analytica Chimica Acta, 798, 1, 64-73.

Chesson, L.A., Tipple, B.J., Erkkila, B.R., and Ehleringer, J.R. (2013) Hydrogen and oxygen stable isotope analysis of pollen collected from honey, Grana, 52, 4, 305-315.

Tipple, B.J. and Pagani, M. (2013) Environmental control on eastern broadleaf forest species’ leaf wax distributions and D/H ratios, Geochimica et Cosmochimica Acta, 111, 1, 64-77.

Dirghangi, S.S., Pagani, M., Hren, M.T., and Tipple, B.J. (2013) Distribution of glycerol dialkyl glycerol tetraethers in soils from two environmental transects in the USA, Organic Geochemistry, 59, 1, 49-60.

Tipple, B.J., Berke, M.A., Doman, C.E., Khachaturyan, S. and Ehleringer, J.R. (2013) Leaf n-alkane record the plant-water environment at leaf flush, The Proceedings of the National Academy of Sciences, 110, 7, 2659-2664.

Chesson, L.A., Tipple, B.J., Mackey, G.N., Fernandez, D., and Ehleringer, J.R. (2012) Strontium isotope ratios of tap water from the coterminous USA, Ecosphere, 3, 7, Article 67.

Tipple, B.J., Chesson, L.A., Erkkila, B., Ehleringer, J.R., and Cerling, T.E. (2012) B-HIVE: Beeswax Hydrogen Isotopes as Validation of Environment Part II. Compound-specific hydrogen isotope analysis, Food Chemistry, 134, 1, 494-501.

Tipple, B.J., Pagani, M., Krishnan, S., Dirghangi, S.S., Galeotti, S., and Agnini, C. (2011) Coupled high-resolution marine and terrestrial records of carbon and hydrologic cycles variations during the Paleocene-Eocene Thermal Maximum (PETM), Earth and Planetary Science Letters, 311, 1-2, 82-92.

Chesson, L.A., Tipple, B.J., Erkkila, B., Ehleringer, J.R., and Cerling, T. (2011) B-HIVE: Beeswax Hydrogen Isotopes as Validation of Environment Part I. Bulk honey and honeycomb stable isotope analysis, Food Chemistry, 125, 2, 576-581.

Tipple, B.J. and Pagani, M. (2010) A 35 Myr terrestrial higher plant n-alkane stable carbon and hydrogen isotope record from the Gulf of Mexico: Implications for North American C4 grasslands and hydrologic cycle dynamics, Earth and Planetary Science Letters, 299, 1-2, 15, 250-262.

Tipple, B.J., Meyers, S.R., and Pagani, M. (2010) The carbon isotope ratio of Cenozoic CO2: a comparative evaluation of available geochemical proxies, Paleoceanography, doi:10.1029/2009PA001851.

Edwards, E.J., Osborne, C.P., Strömberg, C.A.E., Smith, S.A., Bond, W.J., Christin, P.-A., Cousins, A.B., Duvall, M.R., Fox, D.L., Freckleton, R.P., Ghannoum, O., Hartwell, J., Huang, Y., Janis, C.M., Keeley, J.E., Kellogg, E.A., Knapp, A.K., Leakey, A.D.B., Nelson, D.M., Saarela, J.M., Sage, R.F., Sala, O.E., Salamin, N., Still, C.J., and Tipple, B.J. (2010) The origins of C4 grasslands: Integrating evolutionary and ecosystem science, Science, 328, 5978, 587-591.

Pedentchouk, N., Sumner, W., Tipple, B.J., and Pagani, M. (2008) d13C and dD Composition of n-alkanes from modern angiosperms and conifers: An experimental set-up in central Washington state, USA, Organic Geochemistry, 39, 8, 1066-1071.

Tipple, B.J. and Pagani, M. (2007) The early origins of terrestrial C4 photosynthesis, Annual Review of Earth and Planetary Sciences, 35, 435-461.

Pagani, M., Zachos, J., Freeman, K.H., Tipple, B.J., and Bohaty, S. (2005) Marked change in atmospheric carbon dioxide concentrations during the Oligocene, Science, 309, 600-603.