Peter Buck Postdoctoral Fellow  Mineral Sciences Department, National Museum of Natural History Smithsonian Institution e-mail: hinklem at si dot edu phone:  202-633-1815   soon to be Assistant Professor of Geology at Washington & Lee University (starting Fall 2017)  the twitter:  twitter.com/mag_hinkle

Peter Buck Postdoctoral Fellow
Mineral Sciences Department, National Museum of Natural History
Smithsonian Institution
e-mail: hinklem at si dot edu
phone: 202-633-1815

soon to be Assistant Professor of Geology at Washington & Lee University (starting Fall 2017)

the twitter: twitter.com/mag_hinkle

News

New article out in ES&T --investigated the effects of Mn(II) on Ni & Zn binding to Mn oxides of varying vacancy & Mn(III) contents! Explored the role of pH (acidic v. neutral pH) & of aging. That officially rounds out the papers related to my PhD work. DOI: 10.1021/acs.est.6b04347

Research

I study how trace metals common in natural systems (many of which are micronutrients and contaminants) and mineral structures are affected during iron and manganese biogeochemical cycling, with the goal of understanding how biogeochemical processes at the mineral-water interface affect the compositions of natural waters in present day and geologic systems. I study both abiotic and biotic factors contributing to changes in mineral structures and trace metal speciation and uptake. My research combines my interests in inorganic chemistry, aqueous geochemistry, and biomineralization. I am currently studying fungal manganese oxides with my postdoctoral fellowship -- fungi are intimately linked to several geologic and environmental processes, such as element cycling, mineral formation and dissolution, rock weathering, soil formation, and the mobility of trace metals. I use wet chemistry techniques and bulk characterization methods, such as X-ray diffraction, Fourier transform infrared spectroscopy, and synchrotron-based X-ray absorption spectroscopy, in my research.

Education

Washington University in St. Louis
Ph.D. Earth & Planetary Sciences (2010-2015)
A.M. Earth & Planetary Sciences (2010-2012)
Research Advisor: Jeffrey G. Catalano
Thesis: Ion Interactions at the Mineral-Water Interface During Biogeochemical Iron and Manganese Cycling

Sewanee: The University of the South
B.S. Chemistry (2005-2009)
Research Advisor: Robert E. Bachman