Faculty Spotlight

Professor John A. Higgins

Title: Associate Professor of Geosciences
Research Areas:

Professor John Higgins' primary research interest is the evolution of the carbon cycle and the global climate system over Earth history.  One focus has been on processes that control the chemical composition of seawater, and how those processes have changed on geologic timescales.  Another is how on the chemistry of carbonate sediments is affected by processes that occur post-deposition.  These include early diagenetic recrystallization, dolomitization and hydrothermal alteration.  The tools Prof. Higgins has employed to study these include numerical models of chemical and isotopic biogeochemical cycles, as well as analysis of traditional stable isotopes of oxygen and carbon, and new isotope systems such as magnesium, calcium, and potassium.

John A. Higgns, Associate Professor of Geosciences


In The News



More recent articles

Thursday, Jan 30, 2020
Congratulations to AOS Graduate Student Yi Zhang who recently won an Outstanding Student Presentation Award (OSPA) at AGU's 2019 Fall Meeting for her presentation entitled "Extreme wet-bulb temperature constrained by mean surface warming in the tropics."
Wednesday, Jan 29, 2020
The Department of Geosciences and Princeton University congratulates Dr. Leah Langer on successfully defending her Ph.D. thesis: "Impact of Topography on Coseismic Modeling and Earthquake Static Slip Inversion" on Tuesday, January 28, 2020.
Monday, Jan 13, 2020
On Nov. 8, Emily Geyman ’19, had one chapter of her senior thesis: “How do Shallow Carbonates Record Sea Level and Seawater Chemistry?” published in the Proceedings of the National Academy of Sciences of the United States of America (PNAS) journal. Geyman graduated from the University with an A.B. degree in geosciences. Geyman’s thesis focused on...
Monday, Jan 13, 2020
Floodwaters are rising higher and more frequently in Venice because of global climate change. Princeton’s Michael Oppenheimer speaks with CBS reporter John Dickerson on 60 Minutes about the major reason we will see more floods for the ages across the globe.
Tuesday, Dec 17, 2019

Xinning Zhang, and her laboratory, studies the role that wetlands play in generating methane, a significant greenhouse gas.