Alexander Marr Mapping Geologist (970) 793-5750 aemarr@mines.edu Specialties Geologic Mapping, Mineral Resources
Publications Marr, A.E., 2025, Geochronology and geomorphic evolution of Beebe Draw: Insights into the ancestral South Platte River and the Colorado Piedmont: Mountain Geologist, v. 62, no. 3, p. 223-236 Lindsey, K.O., Marr, A.E., and Perman, E.A., 2025, Geologic map of the Fort Collins quadrangle, Larimer County, Colorado: Colorado Geological Survey Open-File Report 24-01, scale 1:24,000, https://doi.org/10.58783/cgs.of2401.tjil5933 Perman, E.A., Marr, A.E., and Lindsey, K.O., 2025, Geologic map of the Timnath quadrangle, Larimer and Weld Counties, Colorado: Colorado Geological Survey Open-File Report 24-02, scale 1:24,000, https://doi.org/10.58783/cgs.of2402.zbsg4967 Marr, A.E., Perman, E.A., and Lindsey, K.O., 2025, Geologic map of the Severance quadrangle, Weld County, Colorado: Colorado Geological Survey Open-File Report 24-03, scale 1:24,000, https://doi.org/10.58783/cgs.of2403.shre2846 Sebol, L.A., Perman, E.A., and Marr, A.E., 2024, Geologic map of El Paso County, Colorado: Colorado Geological Survey Open-File Report 24-07, scale 1:100,000, https://ngmdb.usgs.gov/Prodesc/proddesc_117108.htm Marr, A.E., 2024, Geologic map of the Milton Reservoir quadrangle, Weld County, Colorado: Colorado Geological Survey Open-File Report 23-04, scale 1:24,000, https://doi.org/10.58783/cgs.of2304.mcgn8961 Keller, S.M., and Marr, A.E., 2024, Geologic map of the Windsor quadrangle, Larimer and Weld Counties, Colorado: Colorado Geological Survey Open-File Report 22-08, scale 1:24,000, https://doi.org/10.58783/cgs.of2208.lfhf7370 Keller, S.M., and Marr, A.E., 2023, Geologic map of the Valley View School quadrangle, Weld County, Colorado: Colorado Geological Survey Open File-Report 21-02, scale 1:24,000, https://doi.org/10.58783/cgs.of2102.laoi7286 Morgan, M.L., O’Keeffe, M.K., and Marr, A.E., 2023. Geologic map of the Brighton quadrangle, Adams County, Colorado: Colorado Geological Survey Open-file Report 22-02, scale 1:24,000, https://doi.org/10.58783/cgs.of2202.dnna2821 Marr, A., and Gonzales, D.A., 2019, A petrologic and petrochemical investigation of alkaline rocks in the Powderhorn carbonatite complex, Gunnison, Colorado: Geological Society of America Abstracts with Programs, v. 51, n. 5, https://pubs.geoscienceworld.org/georef/record/6/4719320/A-petrologic-and-petrochemical-investigation-of
Education & Experience M.S., Geosciences, Colorado State University, 2019-2023 Thesis: Changes in water chemistry and fluvial geomorphology from arsenic contaminated floodplains of Whitewood Creek and Belle Fourche River, South Dakota B.S., (cum laude) Geology, Fort Lewis College, 2015-2019 Certification, GIS, Fort Lewis College, 2019 Senior thesis: Petrologic and petrochemical investigation of alkaline rocks in the Powderhorn Carbonatite Complex, Gunnison, Colorado