David A. Crown's research includes NASA-supported projects in planetary geology, physical volcanology, and remote sensing. Current investigations treat a series of issues regarding the geologic evolution of the Martian surface, including a) geologic history of the Martian highlands in the Hellas region and along the highland-lowland boundary; b) formation of Martian canyon systems, chasmata, and chaotic terrains; c) emplacement of debris aprons and other ice-rich flow features; d) geomorphic characteristics and statistical analyses of impact craters; and e) eruption styles and erosional histories of Martian volcanoes. As part of the NASA/USGS Geologic Mapping Program, Crown is involved in the compilation of geologic maps of quadrangles on Mars (1:500,000-scale) and Venus (1:5M- and 1:15M-scales). Crown is working with colleagues at Arizona State University and the U.S. Geological Survey to produce a global geologic map of Io that provides a synthesis of Voyager and Galileo analyses. Additional projects combine field investigations (Hawaii, western U.S., Mexico), remote sensing, statistical analyses, and models of lava transport to understand lava flow field development on Earth and to develop methodologies for interpreting volcanic terrains on Mars, Venus, and Io. Current research is supported by grants from NASA's Planetary Geology and Geophysics Program (PGG), Mars Data Analysis Program (MDAP), and Outer Planets Research Program (OPR).
Crown, D.A., and Greeley, R., 2007, Geologic map of MTM -30262 and -30267 quadrangles, Hadriaca Patera region of Mars, U.S. Geological Survey Scientific Investigations Series Map 2936, scale 1:1,004,000.
Williams, D.A., Greeley, R., Zuschneid, W., Werner, S.C., Neukum, G., Crown, D.A., Gregg, T.K.P., Gwinner, K., and Raitala, J., 2007, Hadriaca Patera: Insights into its volcanic history from Mars Express High Resolution Stereo Camera, J. Geophys. Res., 112, E10004, doi:10.1029/2007JE002924.
Berman, D.C., Crown, D.A., and Bleamaster, L.F., 2007, Degradational morphologies of mid-latitude craters on Mars, Lunar and Planetary Science Conference XXXVIII, Abstract 1400, Lunar and Planetary Institute, Houston (CD-ROM).
Bleamaster, L.F., and Crown, D.A., 2007, Geology of MTM quadrangles -40277, -40272, -45277, and -45272, Eastern Hellas Planitia, Mars, Abstracts of the Annual Meeting of Planetary Geologic Mappers, Tucson, AZ, 2007, USGS Open-File Report 2007-1233.
Chuang, F.C., and Crown, D.A., 2007, Modification of the ancient highland plateau along the dichotomy boundary, Deuteronilus Mensae, Mars, Lunar and Planetary Science Conference XXXVIII, Abstract 1455, Lunar and Planetary Institute, Houston (CD-ROM).
Chuang, F.C., and Crown, D.A., 2007, Geologic map of MTM 35337, 40337, and 45337 quadrangles, Deuteronilus Mensae region of Mars, Abstracts of the Annual Meeting of Planetary Geologic Mappers, Tucson, AZ, 2007, USGS Open-File Report 2007-1233.
Crown, D.A., Berman, D.C., and Bleamaster, L.F., 2007, Contemporary gully activity on Mars: Insights from regional geology, Lunar and Planetary Science Conference XXXVIII, Abstract 1726, Lunar and Planetary Institute, Houston (CD-ROM).
Crown, D.A., Berman, D.C., and Gregg, T.K.P., 2007, Geologic diversity and chronology of Hesperia Planum, Mars, Lunar and Planetary Science Conference XXXVIII, Abstract 1169, Lunar and Planetary Institute, Houston (CD-ROM).
Crown, D.A., Bleamaster, L.F., Mest, S.C., and Mustard, J.F., 2007, Geology of the NW Rim of the Hellas Basin, EOS Trans. AGU 88(52), Fall Meet. Suppl., Abstract P41A-0189.
Gregg, T.K.P., and Crown, D.A., 2007, Redefining Hesperia Planum, Mars, through geologic mapping, Lunar and Planetary Science Conference XXXVIII, Abstract 1190, Lunar and Planetary Institute, Houston (CD-ROM).
Gregg, T.K.P., and Crown, D.A., 2007, Mapping Hesperia Planum, Mars, Abstracts of the Annual Meeting of Planetary Geologic Mappers, Tucson, AZ, 2007, USGS Open-File Report 2007-1233.
Grier, J.A., Pierazzo, E., Chuang, F.C., Osinski, G., and Crown, D.A., 2007, Exploring impact craters using interactive web tools and rock samples, Lunar and Planetary Science Conference XXXVIII, Abstract 2011, Lunar and Planetary Institute, Houston (CD-ROM).
Jones, T.K., Gregg, T.K.P., and Crown, D.A., 2007, A quantitative investigation of fluvial activity in the Hesperia Planum region, Mars, Lunar and Planetary Science Conference XXXVIII, Abstract 2156, Lunar and Planetary Institute, Houston (CD-ROM).
Mandt, K.E., de Silva, S., Zimbelman, J.R., and Crown, D.A., 2007, A synoptic approach to evaluating the origin of the Medusae Fossae Formation, Mars, Lunar and Planetary Science Conference XXXVIII, Abstract 1823, Lunar and Planetary Institute, Houston (CD-ROM).
Peet, V.M., Ramsey, M.S., and Crown, D.A., 2007, Remote sensing analyses of small terrestrial volcanic and impact craters: A Mars analog for formation, morphology, and erosional processes, Lunar and Planetary Science Conference XXXVIII, Abstract 2330, Lunar and Planetary Institute, Houston (CD-ROM).
Peet, V.M., Ramsey, M.S., and Crown, D.A., Evaluating laboratory and satellite data of small terrestrial impact and volcanic craters as Mars analogs, EOS Trans. AGU 88(52), Fall Meet. Suppl., Abstract P21A-0218.
Rodriguez, J.A.P., Kargel, J., Crown, D., and Tanaka, K.L., Secondary chaotic terrain in Simud and Tiu Valles, Mars: Remnanats of intra-cryolithospheric taliks?, abstract submitted to 9th International Permafrost Conference.
Williams, D.A., Keszthelyi, L., Geissler, P., Jaeger, W., Becker, T., Crown, D., and Schenk, P., 2007, Geologic mapping of the polar regions of Io, Lunar and Planetary Science Conference XXXVIII, Abstract 1124, Lunar and Planetary Institute, Houston (CD-ROM).
Williams, D.A., Keszthelyi, L.P., Geissler, P.E., Jaeger, W.L., Becker, T.L., Crown, D.A., Schenk, P.M., and Rathbun, J.A., 2007, Global geologic mapping of Io: Data and techniques, ISPRS WG IV/9: Extraterrestrial Mapping Workshop-Advances in Planetary Mapping 2007.
Williams, D.A., Keszthelyi, L.P., Geissler, P.E., Jaeger, W.L., Becker, T.L., Crown, D.A., Schenk, P.M., and Rathbun, J.A., 2007, The global geologic map of Io: Approach and mapping status, Abstracts of the Annual Meeting of Planetary Geologic Mappers, Tucson, AZ, 2007, USGS Open-File Report 2007-1233.
Williams, D.A., Keszthelyi, L.P., Geissler, P.E., Jaeger, W.L., Becker, T.L., Crown, D.A., Schenk, P.M., and Rathbun, J.A., 2007, The global geologic map of Io: Approach and mapping status, submitted to Workshop on Ices, Oceans, and Fire: Satellites of the Outer Solar System, Boulder, CO.