People

Dr. Alan Rooney, Assistant Professor

I am interested in understanding the interactions between tectonics, climate processes and geochemical cycles on a range of time scales. I use radiogenic isotope geochemistry, in particular the rhenium-osmium (Re-Os) geochronometer, Sr and Nd isotopes combined with field-based mapping, sedimentology, stratigraphy and mineralogy to interrogate the rock record of critical transitions in Earth History.

Contact Alan: alan.rooney@yale.edu

Dr. Jonathan Toma, Postdoctoral researcher
Gryphen Goss, Graduate student

I want to understand how past ice sheets behaved during major climatic shifts. My research involves the application of radiogenic isotope techniques to pinpoint how deglaciation occurred (pulsed/linear), timing, and rate. Major climatic shifts of interests include Mid-Pliocene Warming Period (~ 3 million years ago) and the Mid-Pleistocene Transition (~0.8 million years ago). Specific geochemical techniques I employ include the Re-Os and Sm-Nd isotope systems, with a view to combining these with cosmogenic nuclide dating.

Contact: gryphen.goss@yale.edu

Website: www.gryphengoss.com

Sam Shipman, graduate student

Contact: samuel.shipman@yale.edu

carey Ciaburri, graduate student

Contact: carey.ciaburri@yale.edu