John A. Higgins

Position
Associate Professor of Geosciences
Role
Higgins Research Laboratory
Title
Geology, Paleoclimate
Office Phone
Assistant
Office
212 Guyot Hall
Advisee(s):
Bio/Description

Title: Associate Professor of Geosciences

Position: Faculty, Department of Geosciences

Group: Higgins Research Laboratory

Area(s): Geology, Paleoclimate

Research Summary:  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.