Craig Campbell Lundstrom

Contact Information

3026 Natural History Bldg.

+1.217.244.6293

lundstro@illinois.edu

Research Areas

Geochemistry

Petrology, Volcanology & Mineralogy

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Research Interests

I focus on understanding the processes and time scales of igneous rock formation through a combination of experimental simulation and geochemical observations. I co-manage a state-of-the-art mass spectrometry lab with Prof Tom Johnson.

Research Description

How does the Continental Crust form?

Earth is unique in our solar system having a bimodal distribution of crust: a basaltic oceanic crust and a more silicic continental crust. The buoyant continental crust, not found on planets of similar bulk composition (Mars, Venus), floats above the oceanic crust, providing an important aspect to plate tectonics and leading to the development of complex life on Earth. How this silicic crust form is not well understood but its clear that many of the chemical signatures of CC can be tied to the origin of convergent margin granitoids.

Over the past 5 years, our group has produced a number of papers which lead to a very different view of how convergent margin plutons like the Tuolumne Intrusive Suite (shown above) form. First, we performed laboratory experiments in which we placed andesite with 4 wt. % water into a large temperature gradient (950 down to 350°C in a 2 cm long capsule) at upper crustal pressures for 2 months; in a major discovery, granite formed at temperatures below 400°C (Huang et al. GCA 2009). By connecting this result to models of plutons forming incrementally, Lundstrom (GCA 2009) then hypothesized that plutons formed top down by a process termed thermal migration zone refining with a directly testable aspect related to isotopic signatures formed by temperature gradients (see Huang et al. Nature 2010, Lacks et al Phys Rev Lett 2012). Indeed further work has documented the incredible unrealized behavior of water dissolved in magma in a temperature gradient (Bindeman et al. EPSL 2013). Our most recent work has been testing for isotopic signatures in natural differentiation suites; Zambardi et al. (EPSL 2014) provide changes in Fe and Si isotope ratios consistent with a temperature gradient based differentiation process.

Future work seeks to understand the enigmatic relationship between granitoids and silicic volcanic rocks. Until we understand the origin of silicic magmas in general, our ability to predict how silicic volcanoes erupt is severely hampered. If you are passionate about solving geological problems through geochemistry, we welcome your application to our graduate program!

Education

PhD. University of California Santa Cruz

Courses Taught

GEOL 208: History of the Earth System
GEOL 415/515: Field Geology
GEOL 436: Petrology and Petrography
GEOL 510: Integrated Graduate Geology
GEOL 563: Analytical Geochemistry

Recent Publications

Basu, A., Wanner, C., Johnson, T. M., Lundstrom, C. C., Sanford, R. A., Sonnenthal, E. L., Boyanov, M. I., & Kemner, K. M. (2020). Microbial U Isotope Fractionation Depends on the U(VI) Reduction Rate. Environmental Science and Technology, 54(4), 2295-2303. https://doi.org/10.1021/acs.est.9b05935

Childress, T. M., Simon, A. C., Reich, M., Barra, F., Arce, M., Lundstrom, C. C., & Bindeman, I. N. (2020). Formation of the Mantoverde iron oxide-copper-gold (IOCG) deposit, Chile: insights from Fe and O stable isotopes and comparisons with iron oxide-apatite (IOA) deposits. Mineralium Deposita, 55(7), 1489-1504. https://doi.org/10.1007/s00126-019-00936-x

Lundstrom, C. C. (2020). Continuously Changing Quartz-Albite Saturated Melt Compositions to 330 °C With Application to Heat Flow and Geochemistry of the Ocean Crust. Journal of Geophysical Research: Solid Earth, 125(2), [e2019JB017654]. https://doi.org/10.1029/2019JB017654

Qi, Y. H., Cheng, W., Nan, X. Y., Yang, F., Li, J., Li, D. C., Lundstrom, C. C., Yu, H. M., Zhang, G. L., & Huang, F. (2020). Iron Stable Isotopes in Bulk Soil and Sequential Extracted Fractions Trace Fe Redox Cycling in Paddy Soils. Journal of Agricultural and Food Chemistry, 68(31), 8143-8150. https://doi.org/10.1021/acs.jafc.0c02515

Regan, L. A., Bower, N. W., Brown, S. J., Lundstrom, C. C., Bartov, G., & Cooney, M. D. (Accepted/In press). Forensic isoscapes based on intra-individual temporal variation of δ¹⁸O and ²⁰⁶Pb/²⁰⁷Pb in human teeth. Forensic Sciences Research. https://doi.org/10.1080/20961790.2020.1795377

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