News - 2014 - 2014
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 22, 2014Jeroen Tromp, the Blair Professor of Geology and professor of geosciences and applied and computational mathematics, is part of a group to receive 50...
Thursday, Dec 18, 2014A team of scientists led by the University of Toronto’s Barbara Sherwood Lollar, Chris Ballentine of Oxford University, and Tulis Onstott at...
Thursday, Dec 18, 2014A definitive geological timeline shows that a series of massive volcanic explosions 66 million years ago spewed enormous amounts of climate-altering...
Tuesday, Dec 16, 2014At the start of the 1980s, the question of what forced dinosaurs and huge numbers of other creatures to become extinct 65 million years ago was still...
Friday, Dec 12, 2014Online this week in Science (http://scim.ag/BSchoene), volcanism gets a big boost, and so does one of the most...
Wednesday, Dec 3, 2014Geosciences Professor Michael Oppenheimer talks with PBS Newshour Gwen Ifill about the U.S.-China partnership regarding climate change and what other...
Wednesday, Dec 3, 2014Hollister added, in reference to the controversy surrounding planned, postponed and completed seismic studies off the New Jersey coast this past...
Monday, Dec 1, 2014This December, Hannah Zanowski, a graduate student at Princeton University, will travel to Cape Town, South Africa, bundle up in something warm, and...
Monday, Nov 24, 2014What if you have so much to do that you feel overwhelmed and lose motivation? Or if you’ve been working on a project for so long that you begin to...