Education
PhD Environmental Earth System Science, Stanford University
M.S. Environmental Engineering, The University of Iowa
B.S. Civil Engineering, The University of Iowa
 
Courses I teach
HYD 507 Hydrogeochemistry (every Fall)
HYD 546 Contaminant Hydrology (Spring of odd years)
EARTH 340 Climate Change (co-taught in Spring)
HYD 589 GeoJustice (co-taught Fall 2021)
 
Research Areas
 
Mineral redox chemistry
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Schaefer, M.V., R.M. Handler, M.M. Scherer. (2017) Fe(II) reduction of pyrolusite (β-MnO2) and secondary mineral evolution. Geochemical Transactions. 18 (7). DOI: 10.1186/s12932-017-0045-0

Schaefer, M.V., C. A. Gorski, M. M. Scherer. (2011) Spectroscopic evidence for interfacial Fe(II)-Fe(III) electron transfer in a clay mineral. Environmental Science & Technology. 45 (2), 540-545, DOI: 10.1021/es102560m.

 
 
Surface-groundwater interactions and metal(loid) contamination

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Schaefer, M.V., M. Plaganas, M. Abernathy, M. Aiken, A. Garniwan, I. Lee, S.C. Ying.  (2020) Manganese, arsenic, and carbonate interactions in model oxic groundwater systems. Environmental Science & Technology. 54 (17), 10621-10629. DOI: 10.1021/acs.est.0c02084

Schaefer, M.V., X. Guo, S. Benner, A.M. Griffin, C.A. Gorski, Y. Wang, S. Fendorf. (2017) Redox controls on arsenic enrichment and release from aquifer sediments in the Yangtze River Basin. Geochimica et Cosmochimica Acta. 204, 104-119, DOI: 10.1016/j.gca.2017.01.035

Schaefer, M.V., S.C. Ying, S.G. Benner, Y. Duan, Y. Wang, S. Fendorf. (2016) Aquifer arsenic cycling induced by seasonal hydrologic changes within the Yangtze River Basin. Environmental Science & Technology. 50 (7), 3521-3529, DOI: 10.1021/acs.est.5b04986.

Stuckey, J.W., M.V. Schaefer, B.D. Kocar, S.G. Benner, S. Fendorf. (2016) Arsenic release metabolically limited to permanently water-saturated soil in Mekong Delta. Nature Geoscience. 9, 70-76. DOI: 10.1038/ngeo2589

 
Chemical safety of point-of-use ceramic water filters
 
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Schaefer, M.V., M. Abernathy, D. Nguyen, T. Cornell, S.C. Ying. (2021) Firing increases arsenic leaching from ceramic water filters via arsenic and iron phase transformations. Environmental Science & Technology. In Press. DOI: 10.1021/acs.est.1c00169

Schaefer, M.V., A. Shantz, S. Fendorf, S.C. Ying. (2018) Arsenic leaching from ceramic water filters. Environmental Science: Water Research & Technology. 4, 234-240. DOI: 10.1039/c7ew00176b

 
 
Soil carbon cycling
20130808_183618.jpgSchaefer
 

Schaefer, M.V., N.A. Bogie, D. Rath, A. Garniwan, T. Haensel, Y. Lin, C.C. Avila, P.S. Nico, K. Scow, E. Brodie, W. Riley, M. L. Fogel, A. Marklein, A.A. Berhe, T. A. Ghezzehei, S. Parikh, M. Keiluweit, S.C. Ying. (2020) Effect of cover crop on carbon distribution in size and density separated soil aggregates. Soil Systems. 4 (1), 6. DOI: 10.3390/soilsystems4010006

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