Purdue Climate Change Research Center

Nathaniel Lifton

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My research interests focus on developing methods for using in situ cosmogenic nuclides (CNs) to derive surface exposure ages and/or erosion rates for process-oriented geomorphic studies. I have developed reliable methods for extracting in situ cosmogenic 14C (in situ 14C) from quartz, and continue to advance those techniques. Recently, I have been using in situ 14C to calibrate variations of in situ CN production rates with altitude and latitude. As an outgrowth of that work, I am also investigating the effects of millennial-scale geomagnetic variability on CN production rates in time and space. I am also applying in situ 14C in concert with long-lived CNs such as 10Be, 26Al, and 36Cl to investigate complex exposure scenarios, particularly involving glacial advance and retreat.



1997 Ph.D., Geosciences, University of Arizona

1985 B.S., Geological Sciences, University of California at Santa Barbara

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