News - 2016 - 2016
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
Monday, Dec 19, 2016Microorganisms in the energy-limiting environment kilometers below the land surface are found to work together as a team to overcome the limitation...
Monday, Dec 19, 2016With deep sadness, the department has learned of the passing of Dr. Atholl Sutherland-Brown *54. His son Brian has informed the department that his...
Monday, Dec 12, 2016AGU Fall Meeting 2016 master list of Geosciences presentation titles during their attendance in San Francisco. This is an Earth and space science...
Monday, Dec 12, 2016Geosciences undergraduate Katherine Begland ’17 was honored at the Gulf Coast Undergraduate Research Symposium (GCURS) with an award for "Best...
Wednesday, Nov 30, 2016By now the picture of lost plates is precise enough for scientists to try rewinding the clock, reconstructing vanished worlds. In earlier tomography...
Wednesday, Nov 30, 2016The Department of Geosciences and Princeton University congratulates Dr. Pathikrit Bhattacharya on successfully defending his Ph.D. thesis: "...
Wednesday, Nov 30, 2016The Department of Geosciences and Princeton University congratulates Dr. Ryan T. Modrak on successfully defending his Ph.D. thesis: "Acoustic and...
Monday, Nov 21, 2016The Department of Geosciences and Princeton University congratulates Dr. Qixing (Jimmy) Ji on successfully defending his Ph.D. thesis: "Nitrous Oxide...
Friday, Nov 18, 2016The waters of the Southern Ocean have absorbed much of the excess heat and carbon generated by humanity. The hostile conditions have kept...