My research combines traditional and novel geochemical measurements from the sedimentary record with numerical modeling to study the interactions between climate, oceans, life, and biogeochemical cycles in the geologic past. Through a variety of analytical techniques including the isotopic and trace metal composition of sediments and microfossils, I reconstruct climatological and geochemical processes during periods of Earth History that provide geological points of comparison with our current changing climate.
January 16th, 202: Celli Hull’s paper on the K-Pg extinction (for which I contributed C-cycle modeling) is out in Science. Asteroid impact or Deccan volcanism? You be the judge. All sorts of press: New York Times, National Geographic, The Mirror, Newsweek.
October 10th, 2019: Lots of travel and speaking this month: the University of Hong Kong for the “Meeting of the Minds” Workshop October 14-15, and then Penn State’s colloquium on October 24th. Both on carbon-silica cycle coupling, including Snowball Earth events.
March 29th, 2019: Busy week of talks coming up: Snowball silica cycling at the Northeast Geobiology meeting (Amherst, MA, March 30th) followed by twin talks on the coupling of the carbon and silica cycles throughout Earth history at Yale’s Postdoc seminar series (Wednesday April 3rd) and the University of British Columbia in sunny Vancouver (Monday April 8th)!
March 5th, 2019: New paper in Geology on the coupled carbon and silica cycle perturbation in the aftermath of the Marinoan “Snowball Earth” glaciation using my brilliantly-named PreCOSCIOUS model: https://pubs.geoscienceworld.org/gsa/geology/article/569039/coupled-carbon-and-silica-cycle-perturbations
March 2nd, 2019: SoCal friends, come to my talk at Caltech (part of their Environmental Science and Engineering seminar series) on Wednesday, March 13th!
Feb 14th, 2019: If you happen to be in North/Central Texas, come check out my Valentine’s day talk at UT Arlington on the coupling of the carbon and silica cycles throughout Earth history.
January 30, 2019: My paper on the association between Lower Eocene Atlantic cherts and hyperthermal events has been published online in Paleoceanography & Paleoclimatology: https://doi.org/10.1029/2018PA003503. Thanks to co-authors Sandy, Celli, Simon, and Allison for all their help along the way!
January 25th, 2019: Heading to U South Carolina to do some boron isotope intercalibration work on Howie Scher’s Neptune (and give a talk while I’m at it).
January 5th, 2019: Happy birthday me! My paper exploring the coupling of the silica and carbon cycles during proposed Neoproterozoic “Snowball Earth” events has been accepted in Geology. I’ll post a link when it’s online.
December 5th, 2018: If you’re at AGU, come on down to my session (with co-conveners Celli Hull, Andy Ridgwell, and Kate Hendry) on the Evolution of the marine silica cycle. Also check out my poster presenting a new model of the coupled carbon and silica cycles).
September 10th, 2018: Just submitted a paper using my new model called PreCOSCIOUS (The PreCambrian Ocean Silica Carbon Inorganic Ocean Underwater Sediment model). Best acronym ever? We’ll see if Geology‘s editorial staff and reviewers agree.
June 2018: Fun-filled week in Germany: first an IODP meeting in Kiel, then hanging out with Michael Henehan in Berlin and giving a talk at GFZ Potsdam, where I’ll present (for the first time) my work on the silica cycle during “Snowball Earth” events.