Dear Colleagues,

Two postdoctoral positions are available for collaborative research in - a) soil organic matter dynamics and b) aqueous geochemistry of metals in rivers that is to be conducted in the Arequipa region of Peru.  Purdue University and the Universidad Nacional de San Agustin (UNSA) in Arequipa, Peru have partnered to form the Arequipa Nexus Institute for Food, Energy, Water, and the Environment (Nexus Institute), which, over the course of this multi-year, multi-disciplinary partnership, will investigate key environmental, land use, agroeconomic, and social challenges limiting the development of adaptive, profitable, and sustainable food-energy-water systems in the Arequipa Region of Peru. 


            The two successful candidates, part of a cohort of 23 new postdoctoral researchers to be hired within the Nexus Institute in 2018-2019, will investigate soil and river sediment dynamics from the Andean terraced region to the desert lower elevation environments that are under intensive irrigation.  The research will emphasize the following:  a) the biogeochemical controls on soil organic matter stabilization/destabilization in desert, flood plain, and terraced systems, b) measurement and modelling of the speciation and transport of metals from legacy mines and naturally eroded ore deposits, and c) metal organic matter interactions in water, soil, and sediment.  Experience in stable isotope tracers and organic geochemistry will be necessary for this position. 


            Candidates for this position should have completed their PhD, or should expect to complete their degree by the start date, in geochemistry, biogeochemistry, soil science, environmental engineering, or a related relevant program.  Scientific or technical fields providing training in geospatial data analysis are desired.  Candidates interested in this position should have a record of scientific achievement, excellent verbal and written communication skills, and an interest in working in an international and interdisciplinary environment geared toward investigating problems related to environmental sustainability. Spanish language skills are highly desirable. While the postdoctoral positions are based at Purdue University, West Lafayette, IN, USA the successful candidates will be expected to engage in field and laboratory work in Peru, primarily in the Arequipa region, for extended, multi-week periods of time.  Initial appointments are for 1-year starting as early as mid-January, 2019 with potential renewal for a second year upon review. 


Applicants should supply (a) a curriculum vitae (b) a statement of research interests and goals (maximum 2 pages) and (c) e-mail address of three references to: Timothy Filley - [log in to unmask].   Application review will begin immediately.


Note:  I will be at the Fall AGU meeting in Washington D.C. and can set up interview times there.


Arequipa Nexus Institute (Twitter - arequipa_nexus)

Center for the Environment -

PSI-Lab -

Soilexplorer -





Timothy Filley, PhD

Director, Discovery Park Center for the Environment

Professor-Dept. of Earth, Atmospheric and Planetary Sciences,

Dept. of Agronomy

Purdue University

phone: 7654946581