Ian J Orland
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My research explores high-resolution records of past climate change that are preserved in the geochemistry of carbonates including speleothems (cave formations, e.g. stalactites and stalagmites), foraminifera, otoliths, corals, stromatolites and pedothems. Ultimately, these records will help to calibrate our understanding of: 1) seasonal climate patterns in the past, and 2) atmospheric and oceanic circulation during rapid climate change events. I use a combination of micro-imaging and analytical techniques, but the anchor of my work has been the WiscSIMS CAMECA ims-1280 ion microprobe (link) at the University of Wisconsin-Madison. The WiscSIMS ion microprobe can make high-precision measurements of oxygen isotope ratios and trace element concentrations from 10-micron-diameter (or smaller) spots. The 10 micron spatial-resolution represents an order of magnitude improvement over conventional drill-sampling techniques and allows me to build seasonal-resolution interpretations of past environmental change.



  Education

University of Wisconsin - Madison, PhD, 2012 (dissertation)
University of Wisconsin - Madison, MSc, 2008 (thesis)
Washington University in St. Louis, AB, 2006



  Contact     orland [at] wisc [dot] edu