In The News - 2018 - 2018

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.

John A. Higgns, Associate Professor of Geosciences

 


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More recent articles

Thursday, Mar 29, 2018
The Department of Geosciences and Princeton University congratulates Dr. Yajun Peng on successfully defending his Ph.D. thesis: "Seismological Observations and Numerical Modeling of Slow Earthquakes" on Monday, March 26, 2018.
Thursday, Mar 29, 2018
In new shock-compression experiments at an x-ray synchrotron, Sally June Tracy and colleagues, observed that SiO2 transforms from an amorphous material to a tetragonal crystal at a pressure of 36 GPa.
Thursday, Mar 8, 2018
The 2015 Paris climate agreement sought to stabilize global temperatures by limiting warming to “well below 2.0 degrees Celsius above pre-industrial levels,” but a recent literature review found the 2 degree limitation “inadequate” and concluded that limiting global warming to no more than 1.5 degrees would “come with several advantages.”
Tuesday, Feb 27, 2018
Have you ever wished you could travel inside a rock? It may sound more like the Magic School Bus than science, but Princeton scientists have found a way to make it (almost) true. With an industrial grinder and a super-high-resolution camera, Princeton geoscientists Adam Maloof and Akshay Mehra can deconstruct rock samples and create three-...
Monday, Feb 26, 2018
The Witwatersrand Basin in southern Africa began as a shallow sea about 3 billion years ago. Scientists analyze this water to learn how microbes make a living when trapped kilometers beneath the surface. DCO Deep Energy and Deep Life Community members: Thomas Kieft (NMT), Verena Heuer (UNI-Bremen), Esta van Heerden (UFS), Barbara Sherwood Lollar (...

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