Professor John A. Higgins
Title: Associate Professor of Geosciences
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.
Higgins Research Laboratory
Upcoming Semester - SPRING 2021
GEO 360 / ENV 356 - Geochemistry of the Human Environment
Humans have profoundly altered the chemistry of Earth's air, water, and soil. This course explores these changes with an emphasis on the analytical techniques used to measure the human impact. Topics include the accumulation of greenhouse gases (CO2 and CH4) in Earth's atmosphere and the contamination of drinking water at the tap and in the ground. Students will get hands on training in mass spectrometry and spectroscopy to determine the chemical composition of air, water, and soil and will participate in an outreach project aimed at providing chemical analyses of urban tap waters to residents of Trenton, NJ.
In The News
Wednesday, Jun 16, 2021This fellowship will fund Dr. Pincus’ research "EAR-PF: Microplastics and Nanoplastics as Vectors for Inorganic Pollution: Examining the Effect of...
Tuesday, Jun 15, 2021Eleven Princeton University graduate students have been named 2021 recipients of the Mary and Randall Hack ’69 Graduate Awards for Water and the...
Tuesday, May 25, 2021GEO Seniors Stacey Edmonson and Wesley Wiggins (et al) named certificate recipients from High Meadows Environmental Institute for outstanding thesis...
Monday, May 24, 2021
The department could not let the year go by without a traditional photograph of "class seniors by the globe" with academic coordinator Sheryl...
Monday, May 17, 2021These awards and honors were presented at The Department of Geosciences Class Day on Friday, May 14, 2021.
Monday, May 17, 2021Congratulations to the Class of 2021 and to the 2020-2021 Ph.D. Recipients.
Thursday, May 13, 2021The Department of Geosciences and Princeton University congratulates Dr. Alliya Amir Akhtar on successfully defending her Ph.D. thesis "Ca Cycling in...
Wednesday, May 5, 2021Extreme heat is among the most concerning and potentially deadly effects of climate change, especially for the rapidly growing and urbanizing...
Thursday, Apr 8, 2021
BBC "Science in Action" Roland Pease interviews graduate student Katie Maloney (University of Toronto) about her discovery of multicellular...