Catherine A. Macris

PI of the High P-T Experimental Geochemistry Lab at IUPUI
Assistant Professor of Earth Sciences at IUPUI
Caltech Postdoc (2012-2015)
Ph.D. and M.S. in Geochemistry, UCLA (2012)
B.S. in Geology, LSU (2002)

My research interests involve geological and planetary processes at extreme conditions (temperature and/or pressure). I like to develop creative experiments that test our hypotheses of natural phenomena and contribute to the field of planetary geochemistry. I am currently working on several projects ranging from crustal melting caused by giant impacts on Earth to mineral/melt interactions beneath Earth’s crust.

Ruiguan Pan

Ph.D. student at IUPUI (2016-present)
M.S. Florida State University (2015)
M.S. China University of Geosciences, Beijing (2013)
B.S. Northeastern University, Shenyang (2010)

My research interest is mainly focused on high-temperature and pressure geochemistry. My current project is concerned with searching for deep fluid signature in subducted continental crust, particularly, interpreting the processes of metamorphism and water-rock interaction of the ultrahigh-pressure (UHP) units in Tso Morari, NW India. The main techniques applied to my research include metamorphic geochemistry, stable isotopes (e. g., Fe, O, N, B), experimental geochemistry, and thermodynamic modeling. The primary research goals are to determine the pressure-temperature-time (P-T-t) path, to search for evidence of metasomatism, and to model the process of water-rock interaction in UHP terranes.

Emilee Darling

MS student at IUPUI (2017-present) 
Lab Instructor and Teaching Assistant of Earth Sciences at IUPUI
B.A. in Geological Sciences, Albion College (2017)

My research is focused around the field of planetary geochemistry and involves the analysis of tektites, glasses formed during a meteorite impact, and meteorites. I am currently working on experiments analyzing tektite isotope compositions and formation conditions. I have also contributed to the analysis of meteorite formation and composition pre- and post-impact through high temperature experiments.

Tom zur Loye

BSMS student at IUPUI (2016 – present)

I research the methodology of creating synthetic glass materials with the compositions of mantle minerals using aerodynamic levitation combined with laser heating. These glasses are the perfect starting material for high pressure diamond anvil cell experiments, which can simulate lower mantle conditions. I also write apps in the R programming language, including LaserPlot and RockR.

Alexander Kern

MS student at IUPUI (2018-present) 
Lab Instructor and Teaching Assistant of Earth Sciences at IUPUI
B.S. in Geology, BGSU (2018)

 I am attempting to explain why the oxygen isotope content in most tektites is 4.0-4.5 permil lower than that of the suggested protolith, opposite in what one would expect from vaporization induced fractionation. Using IUPUI’s High-Temperature Conical Nozzle Levitation (HT-CNL) system, I am investigating the effect of partial vaporization on different tektite starting materials. I am also studying the thermal histories of tektites by mapping diffusion of silica from lechatelierite into the surrounding felsic glass.   

Lindsey Powell

Undergraduate student at IUPUI (2015-present) 
UROP researcher

My research interests involve studying geological events that ended the reign of Dinosauria. I like to analyze impact debris from the Chixculub Impact to better understand the events that took place leading to their demise, and the environmental processes that occur after a bolide impact. I am currently working on identifying new spherule alteration textures from a new Western Interior Cretaceous-Paleogene boundary locality, the Tanis site in SW North Dakota. 

Ian Marrs

M.S. student at IUPUI (2020-present)
B.S. in Technical Communications (2019); B.S. in Geology (2020)

My research aims to explore tektites – natural glasses formed during meteorite impacts. My work chiefly involves the creation of synthetic glasses using an aerodynamic levitation laser heating furnace conducting geochemical analyses using a scanning electron microscope. I also analyze the relationships of various tektite groups using the R programming language. I hope to use my knowledge of high temperature/pressure geochemistry, statistical analysis, and computer programming to aid in the colonization efforts of the Moon, Mars, and the Solar System.