Skip to main content
Zunli Lu

Zunli Lu

Associate Professor and Director of Graduate Studies
Earth Sciences


310 Heroy Geology Laboratory

In the news

Reduced Oxygen During Ice Age Sheds Light on ‘Missing’ Carbon Dioxide

Microfossils Reveal Warm Oceans Had Less Oxygen, Syracuse Geologists Say

Geologists Confirm Oxygen Levels of Ancient Oceans

Researchers work to fingerprint hydrofracking water quality

Scientists use rare mineral to correlate past climate events in Europe, Antarctica

Excellence in graduate education faculty recognition award

Research Interests

The lower solubility at higher temperatures could lead to a decrease in dissolved oxygen (deoxygenation) in seawater. This would severely impact ocean life (including valuable fisheries) because oxygen is critical for eukaryotic organisms, and plays an important role in biogeochemical cycling of carbon, nitrogen and other biochemically important elements. Forecasting ocean chemistry changes during perturbation of the climate system relies on the development of computer models and their calibrations with proxy data. I'm interested in developing new and sensitive proxies for oxygenation changes through Earth history.


EAR 419/619 Environmental Aqueous Geochemistry
EAR 400/600 Chemical and Paleo Oceanography
EAR 111 Climate Change Past and Present
EAR 205 Water and the Environment


  • Kristina Gutchess (PhD)
  • Wanyi Lu (PhD)
  • Shannon Garvin (MS)

Former graduate students

  • Xiaoli Zhou  (PhD)
  • Sunshyne Hummel  (MS)


Lab spaces include a general chemistry lab, a clean lab, and also instrument room.
A new generation quadrupole ICP-MS, Bruker Aurora M90

Low Temperature Geochemistry Facilities


*student authors

41. Z. Levy, C. T. Mills, Z. Lu, M. B. Goldhaber, D. O. Rosenberry, D. M. Mushet, L. K. Lautz, *X. Zhou, and D. I. Siegel., 2018, “Using halogens (Cl, Br, I) to understand the hydrogeochemical evolution of drought-derived saline porewater beneath a prairie wetland”. Chemical Geology

40. Edwards, C., Fike, D.A., Saltzman, M.R., *Lu, W., and Lu, Z., 2018, “Evidence for local and global redox conditions at an Early Ordovician (Tremadocian) mass extinction”. Earth and Planetary Science Letters 481, 125-135.

39. *Lu, W., Wörndle, S., Halverson, G.P., *Zhou, X., Bekker, A., Rainbird, R.H., Hardisty, D.S., Lyons, T.W., and Lu, Z., 2017, “Iodine proxy evidence for increased ocean oxygenation during the Bitter Springs Anomaly”. Geochemical Perspectives Letters

38. *Zhou, X., Jenkyns, H. C., *Lu, W., Hardisty, D. S., Owens, J. D., Lyons, T. W., and Lu, Z., 2017, “Organically bound iodine as a bottom-water redox proxy: preliminary validation and application”. Chemical Geology, 457, 95-106.

37. Hardisty, D.S., Lu, Z., Bekker, A., Diamond, C.W., Gill, B.C., Jiang, G., Kah, L.C., Knoll, A.H., Loyd, S.J., Osburn, M.R., Planavsky, N.J., Wang, C., *Zhou, X., Lyons, T.W., 2017. "Perspectives on Proterozoic surface ocean redox from iodine contents in ancient and recent carbonate". Earth and Planetary Science Letters 463, 159-170.

36. Owens, J.D., Lyons, T.W., Hardisty, D.S., Lowery, C., Lu, Z., Lee, B., and Jenkyns H.C., 2017. “Patterns of local and global redox variability during the Cenomanian–Turonian Boundary Event (OAE 2) recorded in carbonates and shales from central Italy”. Sedimentology. doi:10.1111/sed.12352.

35. *Zhou, X., Thomas, E., Winguth, A., Ridgwell, A., Scher, H., Rickaby, REM, and Lu, Z., 2016. “Expanded oxygen minimum zones during the late Paleocene - early Eocene: hints from multi-proxy comparison and ocean modeling”. Paleoceanography, 31, doi:10.1002/2016PA003020.

34. *Gutchess, K.M., Jin, L., Lautz, L.K., Shaw, S.B., *Zhou, X., Lu, Z., 2016, “Chloride sources in urban and rural headwater catchments, central New York”. Science of the Total Environment, 565, 462–472.

33. Lu, Z., Hoogakker, B.A.A., Hillenbrand C.D., *Zhou, X., Thomas, E., *Gutchess, K., *Lu, W., Jones, L., Rickaby, R.E.M., 2016, “Oxygen depletion recorded in upper waters of the glacial Southern Ocean”. Nature Communications, 7:11146 doi: 10.1038/ncomms11146.

32. Christian, K.M., Lautz, L.K., Hoke, G.D., Siegel, D.I., Lu, Z., Kessler, J., 2015 “Methane occurrence is associated with sodium-rich valley waters in domestic wells overlying the Marcellus Shale in New York State”. Water Resources Research, 52, 206–226, doi:10.1002/2015WR017805.

31. Jin, L., Edmunds, M.W., Lu, Z., Ma, J., 2015, “Geochemistry of sediment moisture in the Badain Jaran desert: Insights into palaeo-environmental changes and water rock interaction”.  Applied Geochemistry, 63, 235-247.

30. *Zhou, X., Jenkyns, H.C., Owens, J.D., Junium, C.K., Zheng, X., Sageman, B.B., Hardisty, D.S., Lyons, T.W., Ridgwell, A., and Lu. Z., 2015, The I/Ca proxy and upper ocean oxygenation dynamics across the Cenomanian–Turonian OAE 2. Paleoceanography, 30, 510–526. doi:10.1002/2014PA002741.

29. *Zhou, X., Lu, Z., Rickaby, R.E.M., Domack, E., and Wellner, J., "Ikaite abundance controlled by porewater phosphorus level: potential links to dust and productivity". Journal of Geology, Vol. 123, No. 3, pp. 269-281.

28. Lu, Z., *Hummel, S.T., Lautz, L.K., Hoke, G.D., Zhou, X., Leone, J., and Siegel, D.I., 2015, “Iodine as a sensitive tracer for detecting influence of organic-rich shale in shallow groundwater”. Applied Geochemistry, Vol. 60, pp. 29–36.

27. *Zhou, X., Thomas, E., Rickaby, R.E.M., Winguth, A.M.E., and Lu, Z., 2014, “I/Ca evidence for upper ocean deoxygenation during the Paleocene‐Eocene Thermal Maximum (PETM)”. Paleoceanography, DOI: 10.1002/2014PA002702.

26. Lautz, L.K., Hoke, G.D., Lu, Z., Siegel, D.I., Christian, K., Kessler, J.D., and Teale, N.G., 2014, “Using Discriminant Analysis to Determine Sources of Salinity in Shallow Groundwater Prior to Hydraulic Fracturing”. Environmental Science & Technology, 48 (16), 9061-9069.

25. Hardisty, D.S., Lu, Z., Planavsky, N.J., Bekker, A., Philippot, P., Zhou, X. and Lyons T.W., 2014, “An iodine record of Paleoproterozoic surface ocean oxygenation”. Geology, G35439. 1.

24. Limburg, K.E., Walther, B.D., Lu, Z., Jackman, G., Mohan, J., Weber, P.K., Schmitt, A.K., 2015, “In search of the dead zone: use of otoliths for tracking fish exposure to hypoxia”. Journal of Marine Systems, 141, 167-178.

23. Lu, Z., 2013, Comment on “Iodine-129 and Iodine-127 Speciation in Groundwater at the Hanford Site, U.S.: Iodate Incorporation into Calcite”. Environmental Science & Technology, 47 (22), pp.13203–13204. DOI: 10.1021/es404049s

22. Jin, L., Whitehead, P.G., Futter, M.N. and Lu, Z., 2012, Modeling the impacts of climate change on flow and nitrate of the River Thames: Assessing potential adaption strategies. Hydrology Research, vol. 43, pp.902-916. doi: 10.2166/nh.2011.080

21. Jin, L., Siegel, D.I., Lautz, L.K., and Lu, Z., 2012, Identifying streamflow sources during spring snowmelt using water chemistry and isotopic composition in semi-arid mountain streams. Journal of Hydrology, vol. 470–471, pp. 289–301

20. Lu, Z., Rickaby, R.E.M., Kennedy H., Kennedy, P., Shaw S., Lennie, A., Pancost, R.D., Wellner, J., and Anderson, J.B., 2012, An ikaite record of late Holocene climate at the Antarctic Peninsula. Earth and Planetary Science Letters, vol.325-326, pp. 108-115, doi:10.1016/j.epsl.2012.01.036 

19. Küpper, F. C., Feiters, M. C., Olofsson, B., Kaiho, T., Yanagida, S., Zimmermann, M. B., Carpenter, L. J., Luther, G. W., Lu, Z., Jonsson, M. and Kloo, L. (2011), Commemorating Two Centuries of Iodine Research: An Interdisciplinary Overview of Current Research. Angewandte Chemie International Edition, 50: 11598–11620. doi: 10.1002/anie.201100028

18. Lu, Z., Tomaru, H., and Fehn, U., 2011, Comparison of iodine dates from mud volcanoes and gas hydrate occurrences: relevance for the movement of fluids and methane in active margins. American Journal of Science. Vol. 311, (632–650), DOI 10.2475/07.2011.03

17. Lu, Z., Jenkyns, H.C., and Rickaby, R.E.M., 2010, Iodine to calcium ratios in marine carbonate as a paleo-redox proxy during oceanic anoxic events. Geology, 38(12), 1107–1110.

16. Lu, Z., Rickaby, R.E.M., Wellner, J., Georg, B., Charnley, N., Anderson, J.B. and Hensen C., 2010. Pore fluid modeling approach to identify recent meltwater signals on the west Antarctic Peninsula. Geochem. Geophys. Geosyst., 11, Q06017, Doi 10.1029/2009gc002949.

15. Scholz, F., Hensen, C., Lu, Z., and Fehn, U., 2010. Controls on the I-129/I ratio of deep-seated marine interstitial fluids: 'Old' organic versus fissiogenic 129-iodine. Earth and Planetary Science Letters, 294(1-2), 27-36.

14. Lu, Z., Fehn U., Zhao X., Kieser W.E. and Tomaru H., 2010, Comparison of three chemical extraction methods for I-129 determinations: Nuclear Instruments and Methods in Physics Research B, 268, 952–955.

13. Tomaru, H., Fehn, U., Lu, Z., Takeuchi, R., Inagaki, F., Imachi, H., Kotani, R., Matsumoto R., and Aoike, R., 2009, Dating of Dissolved Iodine in Pore Waters from the Gas Hydrate Occurrence Offshore Shimokita Peninsula, Japan: 129I Results from the D/V Chikyu Shakedown Cruise. Resource Geology, 59(4), 359-373.

12. Tomaru, H., Lu, Z., Fehn, U., and Muramatsu Y., 2009, Origin of hydrocarbons in the Green Tuff region of Japan: 129I results from oil field brines and hot springs in the Akita and Niigata Basins : Chemical Geology, v. 264, p. 221-231.

11. Lu, Z., Hensen, C., Fehn, U., and Wallmann, K., 2008, Halogen and 129I systematics in gas hydrate fields at the northern Cascadia margin (IODP Expedition 311): Insights from numerical modeling: Geochem. Geophys. Geosyst., 9, Q10006, doi:10.1029/2008GC002156.

10. Lu, Z., Tomaru, H., and Fehn, U., 2008, Iodine ages of pore waters at Hydrate Ridge (ODP Leg 204), Cascadia Margin: implications for sources of methane in gas hydrates: Earth and Planetary Science Letters, v. 267, p. 654-665.

9. Lu, Z., Hensen, C., Fehn, U., and Wallmann, K., 2007, Old iodine in fluids venting along the Central American convergent margin: Geophysical Research Letters 34, L22604, doi: 22610.21029/22007GL031864.

8. Lu, Z., Fehn, U., Tomaru, H., Elmore, D., and Ma, X., 2007, Reliability of 129I/I ratios produced from small sample masses: Nuclear Instruments and Methods in Physics Research B, v. 259, p. 359-364.

7. Tomaru, H., Lu, Z., Fehn, U., Muramatsu, Y., and Matsumoto, R., 2007 Age variation of pore water iodine in the eastern Nankai Trough, Japan: evidence for different methane sources in a large gas hydrate field: Geology, v.35, p.1015-1018.

6. Tomaru, H., Lu, Z., Snyder, G.T., Fehn, U., Hiruta, A., and Matsumoto, R., 2007, Origin and age of pore waters in an actively venting gas hydrate field near Sado Island, Japan Sea: interpretation of halogen and 129I distributions: Chemical Geology, v. 236, p. 350-366.

5. Tomaru, H., Fehn, U., Lu, Z.L., and Matsumoto, R., 2007, Halogen systematics in the Mallik 5L-38 gas hydrate production research well, Northwest Territories, Canada: Implications for the origin of gas hydrates under terrestrial permafrost conditions: Applied Geochemistry, v. 22, p. 656-675.

4. Tomaru, H., Ohsawa, S., Amita, K., Lu, Z.L., and Fehn, U., 2007, Influence of subduction zone settings on the origin of forearc fluids: Halogen concentrations and I-129/I ratios in waters from Kyushu, Japan: Applied Geochemistry, v. 22, p. 676-691.

3. Fehn, U., Lu, Z., and Tomaru, H., 2006, Data Report: 129I/I ratios and halogen concentrations in pore water of Hydrate Ridge and their relevance for the origin of gas hydrates: A progress report: Proceedings of the Ocean Drilling Program, Scientific Results, v. 204.

2. Lu, Z., Ling, H.F., Zhou, F., Jiang, S., Chen, X., and Zhou, H., 2005, Variation of the Fe/Mn ratio of ferromanganese crusts from the Central North Pacific: implication for paleoclimate changes: Progress in Natural Science, v. 15, p. 530-537.

1. Ling, H.F., Jiang, S.Y., Frank, M., Zhou, H.Y., Zhou, F., Lu, Z.L., Chen, X.M., Jiang, Y.H., and Ge, C.D., 2005, Differing controls over the Cenozoic Pb and Nd isotope evolution of deepwater in the central North Pacific Ocean: Earth and Planetary Science Letters, v. 232, p. 345-361.