David A. Crown | www.psi.edu

2010 Annual Research Report

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). 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) and Mars Data Analysis Program (MDAP). Crown is also leading PSI efforts in education and public outreach, including the Planets Are Places Too series of professional development workshops as part of Project WISER and a collaboration with the Arizona-Sonora Desert Museum and Arizona Project WET to revise curriculum and expand the ASDM’s Laurel Clark Earth Camp Experience.

Papers

Mest, S.C., Crown, D.A., and Harbert, W., 2010, Watershed modeling in the Tyrrhena Terra region of Mars, J. Geophys. Res., 115, E09001, doi:10.1029/2009JE003429.

Rodriguez, J.A.P., Kargel, J.S., Tanaka, K.L., Crown, D.A., Berman, D.C., Fairen, A.G., Baker, V.R., Furfaro, R., Candelaria, P., and Sasaki, S., 2010, Secondary chaotic terrain formation in the higher outflow channels of southern circum-Chryse, Mars, Icarus, doi:10.1016/j.icarus.2010.09.027.

Maps

Bleamaster, L.F., and Crown, D.A., 2010, Geologic Map of MTM -40277, -45277, -40272, and -45272 Quadrangles, Eastern Hellas Planitia Region of Mars, U.S. Geological Survey Scientific Investigations Series Map 3096.

Williams, D.A., Keszthelyi, L.P., Crown, D.A., Yff, J.A., Jaeger, W.L., Schenk, P.M., Geissler, P.E., and Becker, T.L., 2010, Geologic Map of Io, U.S. Geological Survey, scale 1:15,000,000, in review.

Abstracts

Berman, D.C., Crown, D.A., Joseph, E.C.S., and Chuang, F.C., 2010, Impact craters as stratigraphic markers using CTX-based size-frequency distributions, Lunar and Planetary Science Conference XLI, Abstract 1163, Lunar and Planetary Institute, Houston (CD-ROM).

Berman, D.C., Crown, D.A., Joseph, E.C.S., and Chuang, F.C., 2010, Refining the geologic history of Deuteronilus Mensae, Mars using CTX-based size-frequency distributions, Abstract P51A-1416, presented at 2010 Fall Meeting, AGU, San Francisco, Calif., 13-17 Dec.

Bleamaster, L.F., and Crown, D.A., 2010, Geologic mapping of the Nili Fossae region of Mars: MTM quadrangles 20287, 20282, 25287, 25282, 30287, and 30282, Abstracts of the Annual Meeting of Planetary Geologic Mappers, Flagstaff, AZ, 2010, NASA/CP-2010-217041.

Canizo, T.L., Anderson, S.W., Bleamaster, L.F., Crown, D.A., and Lebofsky, L.A., 2010, Evaluation strategies for professional development workshops for K-8 teachers at the Planetary Science Institute, Lunar and Planetary Science Conference XLI, Abstract 1164, Lunar and Planetary Institute, Houston (CD-ROM).

Condit, C., Bleamaster, L.F., Crown, D.A., and Mest, S.C., 2010, Spatial analyses of impact craters around Hellas Planitia, Mars: Implications for fluvial and lacustrine environments, Abstract P51A-1415, presented at 2010 Fall Meeting, AGU, San Francisco, Calif., 13-17 Dec.

Crown, D.A., Bleamaster, L.F., Mest, S.C. Mustard, J.F., and Vincendon, M., 2010, Geologic mapping of the NW rim of Hellas Basin, Mars: Evidence for an ancient buried landscape, Lunar and Planetary Science Conference XLI, Abstract 1888, Lunar and Planetary Institute, Houston (CD-ROM).

Crown, D.A., Bleamaster, L.F., Mest, S.C., Mustard, J.F., and Vincendon, M., 2010, Geologic mapping investigations of the northwest rim of Hellas basin, Mars, in Abstracts of the Annual Meeting of Planetary Geologic Mappers, San Antonio, TX, 2009, NASA/CP-2010-216680.

Crown, D.A., Bleamaster, L.F., Mest, S.C. Mustard, J.F., and Vincendon, M., 2010, Evidence for an ancient buried landscape of the NW rim of Hellas Basin, Mars, Abstracts of the Annual Meeting of Planetary Geologic Mappers, Flagstaff, AZ, 2010, NASA/CP-2010-217041.

Crown, D.A., Ramsey, M.S., and Berman, D.C., 2010, Mapping Arsia Mons lava flow fields: Insights into flow emplacement processes and flow field development, Lunar and Planetary Science Conference XLI, Abstract 2225, Lunar and Planetary Institute, Houston (CD-ROM).

Crown, D.A., Ramsey, M., and Hon, K., 2010, Emplacement of pahoehoe toe networks: Observations of May, 2010 tube-fed flows at Kilauea Volcano, Hawai’i, Abstract V21C-2349, presented at 2010 Fall Meeting, AGU, San Francisco, Calif., 13-17 Dec.

Gregg, T.K.P., and Crown, D.A., 2010, Mapping Tyrrhena Patera and Hesperia Planum, Mars, in Abstracts of the Annual Meeting of Planetary Geologic Mappers, San Antonio, TX, 2009, NASA/CP-2010-216680.

Gregg, T.K.P., and Crown, D.A., 2010, Geologic mapping in the Hesperia Planum region, Mars, Abstracts of the Annual Meeting of Planetary Geologic Mappers, Flagstaff, AZ, 2010, NASA/CP-2010-217041.

Lebofsky, L.A., Anderson, S.W., Bleamaster, L.F., Canizo, T.L., Croft, S.K., Crown, D.A., Kortenkamp, S., and Pierazzo, E., 2010, Professional development workshops for K-8 teachers at the Planetary Science Institute, Lunar and Planetary Science Conference XLI, Abstract 1192, Lunar and Planetary Institute, Houston (CD-ROM).

Mest, S.C., and Crown, D.A., 2010, Geologic mapping of the Reull Vallis source area in southern Hesperia Planum, Mars, Lunar and Planetary Science Conference XLI, Abstract 1945, Lunar and Planetary Institute, Houston (CD-ROM).

Mest, S.C., and Crown, D.A., 2010, Geologic mapping of MTM -30247, -35247, and -40247 quadrangles: Reull Vallis region, Mars, in Abstracts of the Annual Meeting of Planetary Geologic Mappers, San Antonio, TX, 2009, NASA/CP-2010-216680.

Mest, S.C., and Crown, D.A., 2010, Geology of MTM -30247, -35247, and -40247 quadrangles, southern Hesperia Planum, Mars, submitted to Abstracts of the Annual Meeting of Planetary Geologic Mappers, Flagstaff, AZ, 2010, NASA/CP-2010-217041.

Ramsey, M.S., and Crown, D.A., 2010, Thermophysical and spectral variability of Arsia Mons lava flows, Lunar and Planetary Science Conference XLI, Abstract 1111, Lunar and Planetary Institute, Houston (CD-ROM).

Williams, D.A., Keszthelyi, L.P., Crown, D.A., Geissler, P.E., Schenk, P.M., Yff, J., and Jaeger, W.L., 2010, Volcanism on Io: Results from global geologic mapping, Lunar and Planetary Science Conference XLI, Abstract 1351, Lunar and Planetary Institute, Houston (CD-ROM).

Williams, D.A., Keszthelyi, L.P., and Crown, D.A., 2010, Volcanism on Io: Results from global geologic mapping, submitted to Geol. Soc. Amer. Abstracts with Program, 42, no. 5, Abstract 178394.