In The News - 2017 - 2017

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

 

 


In The News

  


 

More recent articles

Wednesday, Sep 27, 2017
Why it’s so hard to compare contemporary tropical cyclones to those from the 19th century. The month was so powerful that it has assured certain records for the 2017 Atlantic hurricane season as a whole, which is already among the 10 strongest seasons ever measured. (Prof. Gabe Vecchi quoted)
Wednesday, Sep 27, 2017
The Department of Geosciences and Princeton University congratulates Dr. Xiangtao Xu on successfully defending his Ph.D. thesis: "Understanding Plant Water Stress and The Terrestrial Carbon Cycle in Tropical Ecosystems: The Roles of Plant Hydraulics, Phenology and Competition" on Tuesday, September 26, 2017.
Wednesday, Sep 20, 2017
That inward contraction of a hurricane’s eye can be one telltale indicator of what hurricane gurus technically call “rapid intensification,” although a more evocative word might simply be “explosion.” “One of the key issues is that it remains quite difficult to predict on a day-to-day basis. And of course, it’s something we would very much like to...
Tuesday, Sep 12, 2017
With the torrential rains of Hurricane Harvey, the historic winds of Irma, and Jose still meandering slowly through the Caribbean, the last few weeks have been full of powerful and frequent hurricanes. In the real world, the planet has gotten warmer, the oceans have gotten warmer, and here we have these intense storms — it all seems to add up. (...
Friday, Sep 8, 2017
Hurricanes Irma and Harvey have reignited discussions about the link between global warming and extreme weather, with climate scientists now saying they can show the connections between the two phenomena better than ever before. “A warmer ocean makes a warmer atmosphere, a warmer atmosphere can hold more moisture,” says Gabriel Vecchi, a professor...

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