Reinhard Kozdon

(2012 - Recent)


Hupp, B.N., Kelly, D.C., Kozdon, R., Orland, I.J., Valley, J.W. (2023). Secondary controls on the stratigraphic signature of the carbon isotope excursion marking the Paleocene-Eocene thermal maximum at Ocean Drilling Program Site 1135. Chem. Geol., 632.


Poirier, R.K., Gaetano, M.Q., Acevedo, K., Schaller, M.F., Raymo, M.E., Kozdon, R. (2020). Quantifying Diagenesis, Contributing Factors, and Resulting Isotopic Bias in Benthic Foraminifera using the Foraminiferal Preservation Index: Implications for Geochemical Proxy Records. Paleoceanography and Paleoclimatology, e2020PA004110.

Quintero, R.R., Kitajima, K., Lackey, J.S., Kozdon, R., Strickland, A., Valley, J.W. (2021). Oxygen isotope ratios in zircon and garnet: A record of assimilation and fractional crystallization in the Dinkey Dome peraluminous granite, Sierra Nevada, California. Am. Mineral., 106(5): 715-729.


Livsey, C.M., Kozdon, R., Bauch, D., Brummer, G.-J.A., Jonkers, L., Orland, I., Hill, T.M., Spero, H.J. (2020). High-resolution Mg/Ca and δ18O patterns in modern Neogloboquadrina pachyderma from the Fram Strait and Irminger Sea. Paleoceanography and Paleoclimatology, 35(9): e2020PA003969.

Kozdon, R., Penman, D.E., Kelly, D.C., Zachos, J.C., Fournelle, J.H., Valley, J.W. (2020). Enhanced Poleward Flux of Atmospheric Moisture to the Weddell Sea Region (ODP Site 690) during the Paleocene‐Eocene Thermal Maximum. Paleoceanography and Paleoclimatology 35(6): e2019PA003811.

Wycech, J., Kelly, D.C., Fournelle, J.H., Kitajima, K., Kozdon, R., Orland, I. (2020). Reconstructing Pliocene west Pacific warm pool hydroclimate using in situ microanalyses on fossil planktic foraminifer shells. Paleoceanography and Paleoclimatology, 35(7): e2019PA003772.


Hollis, J., Tom Dunkley, J., Anagnostou, E., Bijl, P.K., Cramwinckel, M.J., Cui, Y., Dickens, G.R., Edgar, K.M., Eley, Y., Evans, D., Foster, G.L., Frieling, J., Inglis, G.N., Kennedy, E.M., Kozdon, R., Lauretano, V., Lear, C.H., Littler, K., Meckler, N., Naafs, B.D.A, Pälike, H., Pancost, R.D., Pearson, P., Royer, D.L., Salzmann, U., Schubert, B., Seebeck, H., Sluijs, A., Speijer, R., Stassen, P., Tierney, J., Tripati, A., Wade, B., Westerhold, T, Witkowski, C., Zachos, J.C., Zhang, Huber, M, Lunt, D.J. (2019). The DeepMIP contribution to PMIP4: methodologies for selection, compilation and analysis of latest Paleocene and early Eocene climate proxy data, incorporating version 0.1 of the DeepMIP database. Geoscientific Model Development Discussions: 1-98.


Cammack, J. N., Spicuzza, M. J., Cavosie, A. J., Van Kranendonk, M. J., Hickman, A. H., Kozdon, R., Orland, I. J., Kitajima, K. and Valley, J. W. (2018). SIMS microanalysis of the Strelley Pool Formation cherts and the implications for the secular-temporal oxygen-isotope trend of cherts: Precambrian Research 304: 125-139.

Domínguez-Villar, D., Lojen, S., Krklec, K., Kozdon, R., Edwards, R. L., and Cheng, H. (2018). Ion microprobe δ18O analyses to calibrate slow growth rate speleothem records with regional δ18O records of precipitation: Earth and Planetary Science Letters, v. 482, p. 367-376.

Helser, T. E., Kastelle, C.R., McKay, J.L., Orland, I.J., Kozdon, R., Valley, J.W. (2018). Evaluation of micromilling/conventional isotope ratio mass spectrometry and secondary ion mass spectrometry of δ18O values in fish otoliths for sclerochronology. Rapid Communications in Mass Spectrometry 32(20): 1781-1790.

Kozdon, R., Kelly, D. C. and Valley, J. W. (2018). Diagenetic Attenuation of Carbon Isotope Excursion Recorded by Planktic Foraminifers during the Paleocene-Eocene Thermal Maximum: Paleoceanography and Paleoclimatology,33(4): 367-380.

Linzmeier, B. J., Landman, N.H., Peters, S.H., Kozdon, R., Kitajima, K., Valley, J.W. (2018). Ion microprobe–measured stable isotope evidence for ammonite habitat and life mode during early ontogeny. Paleobiology 44(4): 684-708.

Raymo, M. E., Kozdon, R., Evans, D., Lisiecki, L., Ford, H.L. (2018). The accuracy of mid-Pliocene δ18O-based ice volume and sea level reconstructions. Earth-Science Reviews 177: 291-302.

Wycech, J.B., Kelly, D.C., Kitajima, K., Kozdon, R., Orland, I.J., Valley, J.W., 2018. Combined Effects of Gametogenic Calcification and Dissolution on δ18O Measurements of the Planktic Foraminifer Trilobatus sacculifer. Geochemistry, Geophysics, Geosystems,19(11): 4487-4501.

Wycech, J. B., Kelly, D. C., Kozdon, R., Orland, I. J., Spero, H. J, and Valley, J. W. (2018). Comparison of δ18O analyses on individual planktic foraminifer (Orbulina universa) shells by SIMS and gas-source mass spectrometry. Chemical Geology 483: 119-130.


Denny, A. C., Kozdon, R., Kitajima, K., and Valley, J. W. (2017). Isotopically zoned carbonate cements in Early Paleozoic sandstones of the Illinois Basin: δ18O and δ13C records of burial and fluid flow: Sedimentary Geology.

Helser, T., Kastelle, C., Crowell, A., Ushikubo, T., Orland, I. J., Kozdon, R., and Valley, J. W. (2017). A 200-year archaeozoological record of Pacific cod (Gadus macrocephalus) life history as revealed through ion microprobe oxygen isotope ratios in otoliths: Journal of Archaeological Science: Reports 21: 1236-1246.

Lembke-Jene, L., Tiedemann, R., Nürnberg, D., Kokfelt, U., Kozdon, R., Max, L., Röhl, U., and Gorbarenko, S. A. (2017). Deglacial variability in Okhotsk Sea Intermediate Water ventilation and biogeochemistry: Implications for North Pacific nutrient supply and productivity: Quaternary Science Reviews, v. 160, p. 116-137.

Louyakis, A. S., Mobberley, J. M., Vitek, B. E., Visscher, P. T., Hagan, P. D., Reid, R. P., Kozdon, R., Orland, I. J., Valley, J. W., and Planavsky, N. J. (2017). A study of the microbial spatial heterogeneity of Bahamian thrombolites using molecular, biochemical, and stable isotope analyses: Astrobiology, v. 17, no. 5, p. 413-430.

Raymo, M. E., Kozdon, R., Evans, D., Lisiecki, L., and Ford, H. L. (2017). The accuracy of mid-Pliocene δ 18 O-based ice volume and sea level reconstructions: Earth-Science Reviews.

Śliwiński, M. G., Kitajima, K., Kozdon, R., Spicuzza, M. J., Denny, A., and Valley, J. W. (2017). In situ δ13C and δ18O microanalysis by SIMS: A method for characterizing the carbonate components of natural and engineered CO2-reservoirs: International Journal of Greenhouse Gas Control, v. 57, p. 116-133.


Hogan, J., Kozdon, R., Blum, M., Gilliam, J., Valley, J., and McIntyre, P. (2016). Reconstructing larval growth and habitat use in an amphidromous goby using otolith increments and microchemistry: Journal of Fish Biology.

Linzmeier, B. J., Kozdon, R., Peters, S. E., and Valley, J. W. (2016). Oxygen Isotope Variability within Nautilus Shell Growth Bands: PLoS ONE, v. 11(4).

Lunt, D. J., Huber, M., Baatsen, M. L. J., Caballero, R., DeConto, R., Donnadieu, Y., Evans, D., Feng, R., Foster, G., Gasson, E., von der Heydt, A. S., Hollis, C. J., Kirtland Turner, S., Korty, R. L., Kozdon, R., Krishnan, S., Ladant, J. B., Langebroek, P., Lear, C. H., LeGrande, A. N., Littler, K., Markwick, P., Otto-Bliesner, B., Pearson, P., Poulsen, C., Salzmann, U., Shields, C., Snell, K., Starz, M., Super, J., Tabour, C., Tierney, J., Tourte, G. J. L., Upchurch, G. R., Wade, B., Wing, S. L., Winguth, A. M. E., Wright, N., Zachos, J. C., and Zeebe, R. (2016). DeepMIP: experimental design for model simulations of the EECO, PETM, and pre-PETM: Geosci. Model Dev. Discuss., v. 2016, p. 1-16.

Oerter, E.J., Sharp, W.D., Oster, J.L., Ebeling, A., Valley, J.W., Kozdon, R., Orland, I.J., Hellstrom, J., Woodhead, J.D., Hergt, J.M., Chadwick, O.A., Amundson, R. (2016). Pedothem carbonates reveal anomalous North American atmospheric circulation 70,000–55,000 years ago. Proceedings of the National Academy of Sciences, 113(4), 919-924.

Pollington, A.D., Kozdon, R., Anovitz, L.M., Georg, R.B., Spicuzza, M.J., Valley, J.W. (2016). Experimental calibration of silicon and oxygen isotope fractionations between quartz and water at 250°C by in situ microanalysis of experimental products and application to zoned low δ30Si quartz overgrowths. Chemical Geology 421, 127-142.

Sliwinski, M. G., Kozdon, R., Kitajima, K., Denny, A., and Valley, J. W., 2016, Microanalysis of carbonate cement delta O-18 in a CO2-storage system seal: Insights into the diagenetic history of the Eau Claire Formation (Upper Cambrian), Illinois Basin: AAPG Bulletin, v. 100, no. 6, p. 1003-1031.

Williford, K.H., Ushikubo, T., Lepot, K., Kitajima, K., Hallmann, C., Spicuzza, M.J., Kozdon, R., Eigenbrode, J.L., Summons, R.E., Valley, J.W. (2016). Carbon and sulfur isotopic signatures of ancient life and environment at the microbial scale: Neoarchean shales and carbonates. Geobiology, 14(2), 105-128.


Bonamici, C., Fanning, M., Kozdon, R., Fournelle, J.H., Valley, J.W. (2015). Combined oxygen-isotope and U-Pb zoning studies of titanite: New criteria for age preservation. Chemical Geology 398, 70-84.

Orland, I.J., Lawrence Edwards, R., Cheng, H., Kozdon, R., Cross, M., Valley, J.W. (2015). Direct measurements of deglacial monsoon strength in a Chinese stalagmite. Geology, 43(6): 555-558.

Schopf, J.W., Kudryavtsev, A.B., Walter, M.R., Van Kranendonk, M.J., Williford, K.H., Kozdon, R., Valley, J.W., Gallardo, V.A., Espinoza, C., Flannery, D.T. (2015). Sulfur-cycling fossil bacteria from the 1.8-Ga Duck Creek Formation provide promising evidence of evolution's null hypothesis. PNAS, 12(7) 2087-2092.

Śliwiński, M.G., Kitajima, K., Kozdon, R., Spicuzza, M.J., Fournelle, J.H., Denny, A., Valley, J.W. (2015). Secondary Ion Mass Spectrometry Bias on Isotope Ratios in Dolomite–Ankerite, Part I: δ18O Matrix Effects. Geostandards and Geoanalytical Research.

Śliwiński, M. G., Kitajima, K., Kozdon, R., Spicuzza, M. J., Fournelle, J. H., Denny, A., and Valley, J. W., 2015, Secondary Ion Mass Spectrometry Bias on Isotope Ratios in Dolomite–Ankerite, Part II: δ13C Matrix Effects: Geostandards and Geoanalytical Research.


Blumenthal, S.A., Cerling, T.E., Chritz, K.L., Bromage, T.G., Kozdon, R., Valley, J.W. (2014). Stable isotope time-series in mammalian teeth: In situ δ18O from the innermost enamel layer. Geochim. Cosmochim. Acta, 124(0), 223-236.

Bonamici, C.E., Kozdon, R., Ushikubo, T., Valley, J.W. (2014). Intragrain oxygen isotope zoning in titanite by SIMS: Cooling rates and fluid infiltration along the Carthage-Colton Mylonite Zone, Adirondack Mountains, NY, USA. Journal of Metamorphic Geology, 32(1), 71-92.

Hyodo A., Kozdon R., Pollington, A.D., Valley, J.W. (2014). Evolution of quartz cementation and burial history of the Eau Claire Formation based on in situ oxygen isotope analysis of quartz overgrowths. Chemical Geology 384, 168-180.

Orland, I.J., Burstyn, Y., Bar-Matthews, M., Kozdon, R., Ayalon, A., Matthews, A., Valley, J.W. (2014). Seasonal climate signals (1998–2008) in a modern Soreq Cave stalagmite as revealed by high-resolution geochemical analysis, Chem. Geol., 363(0), 322-333.

Vetter, L., Kozdon, R., Valley, J.W., Mora, C.I., Spero, H.J. (2014). SIMS measurements of intrashell δ13C in the cultured planktic foraminifer Orbulina universa. Geochim. Cosmochim. Acta 139, 527-539.


Grimes, C.B., Ushikubo, T., Kozdon, R., Valley, J.W. (2013). Perspectives on the origin of plagiogranite in ophiolites from oxygen isotopes in zircon. Lithos, 179(0): 48-66.

Harwood J., Aplin A.C., Fialips C.I., Iliffe J.E., Kozdon R., Ushikubo T., Valley J.W. (2013). Quartz cementation history of sandstones revealed by high resolution SIMS oxygen isotope analysis. J. Sedimentary Research, 83(7): 522-530.

Kozdon, R., Kelly, D.C., Kitajima, K., Strickland, A., Fournelle, J.H., Valley, J.W. (2013). In situ δ18O and Mg/Ca analyses of diagenetic and planktic foraminiferal calcite preserved in a deep-sea record of the Paleocene-Eocene thermal maximum. Paleoceanography, 28(3): 517-528.

Limburg, K.E., Hayden, T.A., Pine, W.E., III, Yard, M.D., Kozdon, R., Valley, J.W. (2013). Of Travertine and Time: Otolith Chemistry and Microstructure Detect Provenance and Demography of Endangered Humpback Chub in Grand Canyon (USA). PLOS ONE, 8(12).

Vetter, L., Kozdon, R., Mora, C.I., Eggins, S.M., Valley, J.W., Hönisch, B., Spero, H.J. (2013). Micron-scale intrashell oxygen isotope variation in cultured planktic foraminifers. Geochim. Cosmochim. Acta, 107(0): 267-278.


Bouvier, A.-S., Ushikubo, T., Kita, N., Cavosie, A., Kozdon, R., Valley, J.W. (2012). Li isotopes and trace elements as a petrogenetic tracer in zircon: insights from Archean TTGs and sanukitoids. Contrib. Mineral. Petrol., 163(5): 745-768.

Cunningham, L.C., Page, F.Z., Simonson, B.M., Kozdon, R., Valley, J.W. (2012). Ion microprobe analyses of δ18O in early quartz cements from 1.9 Ga granular iron formations (GIFs): A pilot study. Precambrian Res., 214–215(0): 258-268.

Gordon, S.M., Luffi, P., Hacker, B., Valley, J., Spicuzza, M., Kozdon, R., Kelemen, P., Rathsbacher, L., Minaev, V. (2012). The thermal structure of continental crust in active orogens: insight from Miocene eclogite and granulite xenoliths of the Pamir Mountains. Journal of Metamorphic Geology, 30(4): 413-434.

Olson, I.C., Kozdon, R., Valley, J.W., Gilbert, P.U.P.A. (2012). Mollusk Shell Nacre Ultrastructure Correlates with Environmental Temperature and Pressure. J. Am. Chem. Soc., 134(17): 7351-7358.

Orland, I.J., Bar-Matthews, M., Ayalon, A., Matthews, A., Kozdon, R., Ushikubo, T., Valley, J.W. (2012). Seasonal resolution of Eastern Mediterranean climate change since 34 ka from a Soreq Cave speleothem. Geochim. Cosmochim. Acta, 89(0): 240-255.