In The News

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.

Labortory
Higgins Research Laboratory
Website:
carboncycle.princeton.edu

 
John A. Higgns, Associate Professor of Geosciences

Courses:

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.

Past Semesters

GEO 203 - Fundamentals of the solid Earth
GEO 360 / ENV 356 Geochemistry of the Human Environment Class
GEO 362 / ENV 362  Earth History
GEO 534 - Geological Constraints on the Global Carbon Cycle

 

 


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More recent articles

Friday, May 29, 2020
The Department of Geosciences and Princeton University congratulates Dr. Danielle Schlesinger on successfully defending her Ph.D. thesis: “Salting the Earth: Biogeochemical Cycling of Chlorinated and Brominated Natural Organic Compounds in Coastal Ecosystems" on Monday May 4, 2020.
Friday, May 29, 2020
The Department of Geosciences and Princeton University congratulates Dr. Rachel L. Harris on successfully defending her Ph.D. thesis: “Life on the Fringe: Surveying the Ecophysiological Tenacity of Methanogens and Anaerobic Methanotrophs in the Oligotrophic Deep Subsurface Biosphere" on Tuesday, January 28, 2020.
Friday, May 29, 2020
Congratulations to the Class of 2020 and Ph.D. Recipients from all of us at the Department of Geosciences.
Monday, May 18, 2020
Local variations in climate are not likely to dominate the first wave of the COVID-19 pandemic, according to a Princeton University study published May 18 in the journal Science.
Friday, May 15, 2020
Princeton sent the students home at the time of the spring semester break (13 March) and soon we were all working and teaching from home. Now that classes are over, and only finals and grading remain, we can evaluate our adaptation to the changed circumstances and start to look ahead.

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