Recognized by the Chronicle of Higher Education as one of America's best universities to work for, the University of Delaware is located in Newark, Delaware, a vibrant college town within two hours of New York, Philadelphia, Baltimore, and Washington, D.C. State-assisted, privately governed, UD is a Carnegie R1 Doctoral University and a Land Grant, Sea Grant, and Space Grant institution. The Department of Earth Sciences at the University of Delaware houses a state-of-the-art stable isotope laboratory ( https://sites.udel.edu/eis-lab/ ) equipped with advanced instrumentation capable of measuring isotope ratios and concentrations of hydrogen (H), carbon (C), nitrogen (N), oxygen (O), sulfur (S), and chlorine (Cl).