B.A., 1999: Colgate University
Professor Glotch’s research interests are currently focused on two broad subjects: (1) understanding the role of water in shaping the surface of Mars in terms of both mineralogy and geomorphology, and (2) comparing laboratory spectroscopic and remotely acquired spectroscopic data and the application of these methods for solving various problems in Earth, planetary, and space science.
Remote Sensing of Martian Mineralogy
Professor Glotch uses several remote sensing instruments to determine the mineralogy of the Martian surface. The composition of a planet’s surface is an important indicator of past geological processes including primary formation of the crust and subsequent aqueous weathering. Below is a map of the mineral hematite (a-Fe2O3) in a region of Mars called Aram Chaos. Hematite is an important mineral because it often forms in the presence of liquid water. The map was created using data from the Mars Global Surveyor Thermal Emission Spectrometer (MGS-TES) and the Mars Odyssey Thermal Emission Imaging System (THEMIS). The large crater is about 300 km across and may have once been a lake.
Fundamental Mineral Spectroscopy
Professor Glotch is currently working on a project to determine the fundamental optical properties (the real and imaginary indices of refraction) of rock-forming and weathering product minerals at infrared wavelengths. These data are used as inputs into radiative transfer models to investigate the composition and scattering properties of the Martian atmospheric and surface dust. This work will contribute to studies of Martian and terrestrial atmospheric processes, mineralogy of other planetary bodies, cosmic dust, and protoplanetary disks, and the basic physics of small particulate scattering processes.
* denotes a student author
Glotch, T. D., B. T. Greenhagen, J. L. Bandfield, and D. A. Paige (2011) Observations of lunar swirls by the Diviner Lunar Radiometer Experiment: Evidence for formation by solar wind standoff due to magnetic fields, Icarus, manuscript in preparation.
Glotch, T. D., and A. D. Rogers (2011), Remnants of CO2-rich magmatism on Mars, Earth Planet. Sci. Lett., manuscript in preparation.
Yang, B., P. Lucey, and T. D. Glotch (2011) The salty surfaces of Trojan asteroids, Icarus, in review.
Smith, A. and 60 others (including T. D. Glotch) (2011), Lunar Net – A proposal in response to an ESA M3 call in 2010 for a medium sized mission, Experiment. Astron., in review.
Che, C.*, and T. D. Glotch (2011), The effect of high temperatures on the mid-to-far-infrared emission and near-infrared reflectance spectra of phyllosilicates and natural zeolites: Implications for Martian exploration, Icarus, in review.
Wilson, J. H.*, S. M. McLennan, T. D. Glotch, and E. R. Rasbury (2011), Pedogenic hematitic concretions from the Mesozoic New Haven Arkose, Connecticut: Implications for understanding Martian diagenetic processes, Chem. Geol., in review.
Jensen, H. B.*, and T. D. Glotch (2011), Investigation of the near infrared spectral character of putative Martian chloride deposits, J. Geophys. Res., in press.
Glotch, T. D., J. J. Hagerty, P. G. Lucey, B. R. Hawke, T. A. Giguere, J. A. Arnold*, J.-P. Williams, B. L. Jolliff, and D. A. Paige (2011), The Mairan Domes: Silicic volcanic constructs on the Moon, Geophys. Res. Lett., 38, L21204, doi:10.1029/2011GL049548.
Lane, M. D., T. D. Glotch, M. D. Dyar, C. M. Pieters, R. Klima, T. Hiroi, J. L. Bishop, and J. Sunshine (2011), Midinfrared spectroscopy of synthetic olivines: Thermal emission, attenuated total reflectance, and spectral and diffuse reflectance studies of forsterite to fayalite, J. Geophys. Res., 116, E08010, doi:10.1029/2010JE003588.
Jolliff, B. L., S. A. Wiseman, S. J. Lawrence, T. N. Tran, M. S. Robinson, B. R. Hawke, F. Scholten, J. Oberst, H. Hiesinger, C. van der Bogert, B. T. Greenhagen, T. D. Glotch, and D. A. Paige (2011), Non-mare silicic volcanism on the lunar farside at Compton-Belkovich, Nature Geosciences , 4, 566-571.
Che, C.*, T. D. Glotch, D. L. Bish, J. R. Michalski, and W. Xu (2011), Spectroscopic study of the dehydration and dehydroxylation of phyllosilicate and zeolite minerals, J. Geophys. Res., 116, E05007, doi:10.1029/2010JE003740.
Dyar, M. D., T. D. Glotch, M. D. Lane, B. Wopenka, J. M. Tucker, S. J. Seaman, G. J. Marchand, R. Klima, T. Hiroi, J. L. Bishop, C. Pieters, and J. Sunshine (2010), Spectroscopy of Yamato 984028, Polar Science, 4, 530-549.
Glotch, T. D. (2010), News and Views: Hidden Martian Carbonates, Nature Geoscience, 3, 745-746.
Paige, D. A., M. A. Siegler, J. A. Zhang, P. O. Hayne, B. T. Greenhagen, E. J. Foote, A. R. Vasavada, J. T. Schofield, D. J. McCleese, M. C. Foote, E. DeJong, B. M. Murray, C. C. Allen, K. Snook, L. A. Soderblom, F. W. Taylor, N. E. Bowles, J. L. Bandfield, R. C. Elphic, R. Ghent, T. D. Glotch, M. B. Wyatt, P. G. Lucey and W. Hartford (2010), Diviner observations of cold traps in the lunar south polar region: Spatial distribution and temperature, Science, 330, 479-482.
Glotch, T. D., P. G. Lucey, J. L. Bandfield, B. T. Greenhagen, I. R. Thomas, R. C. Elphic, N. Bowles, M. B. Wyatt, C. C. Allen, K. Donaldson-Hanna, and D. A. Paige (2010), Highly silicic compositions on the Moon, Science, 329, 1510-1513.
Greenhagen, B. T., P. G. Lucey, M. B. Wyatt, T. D. Glotch, C. C. Allen, J. A. Arnold*, J. L. Bandfield, N. E. Bowles, K. L. Donaldson Hanna, P. O. Hayne, I. R. Thomas, and D. A. Paige (2010), Global silicate mineralogy of the Moon from the Diviner Lunar Radiometer, Science, 329, 1507-1509.
Glotch, T. D., J. L. Bandfield, L. L. Tornabene, H. B. Jensen*, and F. P. Seelos (2010), Distribution and formation of chlorides and phyllosilicates in Terra Sirenum, Mars, Geophys. Res. Lett., 37, L16202, doi:10.1029/2010GL044557.
Lichtenberg, K. A., R. E. Arvidson, R. V. Morris, S. L. Murchie, J. L. Bishop, D. Fernandez-Remolar, T. D. Glotch, E. N. Dobrea, J. F. Mustard, J. Andrews-Hanna, and L. H. Roach (2010), Stratigraphy of hydrated sulfates in the sedimentary deposits of Aram Chaos, Mars, J. Geophys. Res., 115, E00D17, doi:10.1029/2009JE0003353.
Farrand, W. H., T. D. Glotch, J. W. Rice, J. Hurowitz, and G. Swayze (2009), Discovery of jarosite-bearing surfaces within the Mawrth Vallis region of Mars: Implications for the geologic history of the region, Icarus, 204, 478-488.
Glotch, T. D., and G. R. Rossman (2009), Mid-infrared spectra and optical constants of six iron oxide/oxyhydroxide phases, Icarus, 204, 663-671.
Bleacher, J. E., L. S. Glaze, R. Greeley, E. Hauber, S. M. Baloga, S. E. H. Sakimoto, D. A. Williams, and T. D. Glotch (2009), Spatial and alignment analyses for a field of small volcanic vents south of Pavonis Mons and implications for the Tharsis province, Mars, J. Volc. Geotherm. Res., 185, 96-102.
Dyar, M. D., E. C. Sklute, O. N. Menzies, P. A. Bland, D. Lindsley, T. Glotch, M. D. Lane, M. W. Schaeffer, B. Wopenka, R. Klima, J. L. Bishop, T. Hiroi, C. Pieters, and J. Sunshine (2009), Spectroscopic characteristics of synthetic olivine: An integrated multi-wavelength and multi-technique approach, Am. Miner., 94, 883-898.
Calvin, W. M. and 18 others (including T. D. Glotch) (2008), Hematite spherules at Meridiani: Results from MI, Mini-TES and Pancam, J. Geophys. Res., 113, E12S37.
Glotch, T. D., and M. D. Kraft (2008), Thermal transformations of akaganéite and lepidocrocite to hematite: Assessment of possible precursors to Martian crystalline hematite, Phys. Chem. Min., 35, 569-581.
Osterloo, M. M., V. E. Hamilton, J. L. Bandfield, T. D. Glotch, A. M. Baldridge, P. R. Christensen, L. L. Tornabene, and F. S. Anderson (2008), Chloride-bearing materials in the southern highlands of Mars, Science, 319, 1651-1654.
Grant, J.A. and 10 others (including T. D. Glotch) (2008), HiRISE imaging of impact megabreccia and sub-meter aqueous strata in Holden Crater, Mars, Geology, 36, 195-198.
Glotch, T. D., G. R. Rossman, and O. Aharonson (2007), Mid-infrared (5-100 µm) reflectance spectra and optical constants of 10 phyllosilicate minerals, Icarus, 192, 605-62.
Glotch, T. D., and A. D. Rogers (2007), Aqueous deposition of hematite and sulfate-rich light-toned layered deposits in Aureum and Iani Chaos, Mars, J. Geophys. Res., 112, E06001, doi:10.1029/2006JE00286.
Squyres, S. W. and 38 others (including T. D. Glotch) (2006), Overview of the Opportunity Mars Exploration Rover mission to Meridiani Planum: Eagle Crater to Purgatory Ripple, J. Geophys. Res., 111, E12S12, doi:10.1029/2006JE002771.
Glotch, T. D., and J. L. Bandfield (2006), Determination and interpretation of surface and atmospheric Mini-TES spectral endmembers at the Meridiani Planum landing site, J. Geophys. Res., 111, E12S06, doi:10.1029/ 2005JE002671.
Glotch, T. D., J. L. Bandfield, P. R. Christensen, W. M. Calvin, S. M. McLennan, B. C. Clark, A. D. Rogers, and S. W. Squyres (2006), The mineralogy of the light-toned outcrop at Meridiani Planum as seen by the Miniature Thermal Emission Spectrometer and implications for its formation, J. Geophys. Res., 111, E12S03, doi:10.1029/ 2005JE002672.
Squyres, S. W. and 17 others (including T. D. Glotch) (2006), Two years at Meridiani Planum: Results from the Opportunity Rover, Science, 313, 1403-1407.
Squyres, S. W. and 20 others (including T. D. Glotch) (2006), Bedrock formation at Meridiani Planum, Nature, 443, E1-E2.
Glotch, T. D., P. R. Christensen, and T. G. Sharp (2006), Fresnel modeling of hematite crystal surfaces and application to martian hematite spherules, Icarus, 181, 408-418.
McLennan, S. M. and 31 others (including T. D. Glotch) (2005), Provenance and diagenesis of the evaporate-bearing Burns formation, Meridiani Planum, Mars, Earth Planet. Sci. Lett., 240, 95-121.
Glotch, T. D. and P. R. Christensen (2005), Geologic and mineralogic mapping of Aram Chaos: Evidence for a water-rich history, J. Geophys. Res., 110, E09006, doi:10.1029/ 2004JE002389.
Soderblom, L. A. and 42 others (including T. D. Glotch) (2004), Soils of Eagle Crater and Meridiani Planum at the Opportunity Rover Landing Site, Science, 306, 1723-1726.
Christensen, P. R., M.B. Wyatt, T. D. Glotch, and 24 others (2004), Initial Results from the Miniature Thermal Emission Spectrometer Experiment at the Opportunity Landing Site on Meridiani Planum, Science, 306, 1733-1739.
Christensen, P. R. and 24 others (including T. D. Glotch) (2004), Initial Results from the Miniature Thermal Emission Spectrometer Experiment at the Spirit Landing Site in Gusev Crater, Science, 305, 837-842.
Glotch, T. D., R. V. Morris, P. R. Christensen, and T. G. Sharp (2004), Effects of precursor mineralogy on the thermal infrared emission spectra of hematite: Application to martian hematite mineralization, J. Geophys. Res., 109, E07003, doi:10.1029/2003JE002224.
Bandfield, J. L., T. D. Glotch, and P. R. Christensen (2003), Spectroscopic identification of carbonates in the martian dust, Science, 301, 1084-1087.
Bottke, W. F. Jr., S. G. Love, D. Tytell, and T. Glotch (2000), Interpreting the elliptical crater populations on Mars, Venus, and the Moon, Icarus, 145, 108-121.
News & Announcements
Geosciences Department Newsletter
PhD Student Yuyan (Sara) Zhao selected for Prestigious Dwornik Award
Professor Timothy Glotch to lead NASA funded research team
Professor Martin Schoonen named Chairman of the Environmental Sciences Department at BNL
Professors John Parise and Artem Oganov pursue Materials Genome Initiative
Professor Deanne Rogers finds evidence for past groundwater on Mars
Professor Robert Liebermann accepts Edward A. Flinn Award
Professor Scott McLennan selected for NASA's Mars Science Laboratory Team