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

Sierra Anseeuw, Lab Manager

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I manage the day-to-day lab operations in the Rooney Lab. I received my BS in Environmental Geology from Beloit College and my MS in Geology from the University of Buffalo. My research background is in isotope geochemistry and contaminant hydrogeology

Contact Sierra: sierra.anseeuw@yale.edu