45th Lunar and Planetary Science Conference (2014) sess706.pdf Thursday, March 20, 2014 [R706] POSTER SESSION: MARS CRYOSPHERE 6:00 p.m. Town Center Exhibit Area Guidat T. Pochat S. Bourgeois O. Soucek O. POSTER LOCATION #101 Early Hesperian Warm-Based Glaciation in Isidis Planitia, Mars [#1800] We propose to interpret the origin of Isidis Planitia landforms based on a new geomorphic mapping initiative that elucidates their interrelationship. Fassett C. I. Levy J. S. Head J. W. Dickson J. L. POSTER LOCATION #102 Long-Lived Glaciation in the Northern Mid-Latitudes of Mars: New Constraints on Timing [#1494] Landforms inferred to be the result of glaciation are common in the northern mid-latitudes of Mars. We focus here on the timing and persistence of glaciation. Scanlon K. E. Head J. W. POSTER LOCATION #103 The Dorsa Argentea Formation: Synthesis of Glacial Features and History of Late Noachian-Early Hesperian Martian Climate Change [#1477] We use the timing of ice advance and retreat recorded by glacial features in the DAF to synthesize a history of the ice sheet and early Mars climate change. Scanlon K. E. Head J. W. Marchant D. R. POSTER LOCATION #104 Evidence for Local, Volcanism-Induced Wet-Based Glacial Conditions in the Amazonian Arsia Mons Fan-Shaped Deposit [#1480] Several regions of the Arsia Mons Fan-Shaped Deposit show that volcano-ice interactions induced local wet-based behavior in the otherwise cold-based glacier. Hughes A. C. G. Hauber E. Rossi A. P. POSTER LOCATION #105 Geomorphology of Glacial and Periglacial Landforms Within a Small Crater in Terra Cimmeria, Mars: Stratigraphy and Inferred Chronology of Processes [#1211] We present a geomorphological map of a crater in Terra Cimmeria, Mars, and reconstruct the complex history of glacial and periglacial processes in this crater. Johnsson A. Reiss D. Hauber E. Hiesinger H. POSTER LOCATION #106 Possible Slow Periglacial Mass Wasting on Interior Crater Walls on Southern Mars [#1105] Small-scale lobate landforms that may be indicative of recent freeze-thaw activity are cataloged on the southern hemisphere on Mars. Jawin E. R. Head J. W. Marchant D. R. POSTER LOCATION #107 Paraglacial Geomorphology on Mars: Application to Post-Glacial Features in Martian Impact Craters [#2241] We apply paraglacial geomorpholgy to martian craters bearing evidence of glaciation to suggest young geologic features form in a post-glacial environment. Chuang F. C. Crown D. A. Berman D. C. POSTER LOCATION #108 Glacial Modification of Eastern Nereidum Montes, Mars: Observations from Southern Hemisphere Mapping of Lobate Debris Aprons and Ice-Rich Flow Features [#2066] Eastern Nereidum Montes is a region on Mars that appears to have experienced significant past glacial activity from THEMIS IR and CTX observations. Chuang F. C. Crown D. A. Berman D. C. Joseph E. C. S. POSTER LOCATION #109 Lobate Debris Aprons and Ice-Rich Flow Features in Eastern Hellas, Mars: Mapping Using THEMIS IR and CTX Data [#2081] The mapping of lobate debris aprons (LDAs) and other ice-rich flow features in eastern Hellas, Mars, was significantly improved using THEMIS IR and CTX data. 45th Lunar and Planetary Science Conference (2014) sess706.pdf Petersen E. I. Holt J. W. Berney J. E. POSTER LOCATION #110 A Comparative Study of Martian Lobate Debris Aprons to Assess Regional Differences in Surface Properties, Morphology, and Internal Composition [#2784] A comparative study of LDAs across the dichotomy boundary region of Deuteronilus Mensae using radar, morphology, and topography to constrain regional trends. Cardenas B. T. Lalich D. E. Petersen E. McKinnon E. A. Andry C. M. et al. POSTER LOCATION #111 Assessing the Potential of Debris-Covered Glaciers in the Uinta Mountains as Martian Analogs [#2362] GPR and LiDAR scans of debris-covered glaciers in the Uinta Mountains, Utah, will assess their potential as terrestrial analogs to martian lobate debris aprons. Berman D. C. Crown D. A. Chuang F. C. POSTER LOCATION #112 Preservation and Mobilization of Ice-Rich Mantling Deposits in Nereidum Montes, Mars [#1553] Nereidum Montes on the northern rim of Argyre Basin contains extensive preservation of ice-rich mantling deposits and associated features. Fastook J. L. Head J. W. POSTER LOCATION #113 Concentric Crater Fill: Rates of Glacial Accumulation, Infilling and Deglaciation in the Amazonian and Noachian of Mars [#1227] A coupled ice-flow/advected-debris model is used to assess two formation scenarios: (1) A single persistent mantling event, (2) multiple transient mantling events. Mattson S. Kilgallon A. Byrne S. McEwen A. S. Herkenhoff K. et al. POSTER LOCATION #114 Meter-Scale Pits in Mars’ North Polar Layered Deposits [#2431] We report the discovery in HiRISE images of meter-scale pits in the north polar layered deposits on Mars. Possible formation hypotheses are briefly discussed. Landis M. E. Byrne S. Daubar I. J. POSTER LOCATION #115 Reinterpreting the Impact Craters of the North Polar Layered Deposits, Mars [#2661] We use the Daubar et al. (2013) production function and updated HiRISE images to reinterpret the impact crater population of the north polar layered deposits. Lalich D. E. Holt J. W. POSTER LOCATION #116 Investigating Layer Properties of the Martian NPLD Using SHARAD Observations and Modeling [#2210] We use a simple plane wave propagation model to estimate the dielectric properties of the upper martian NPLD. Smith I. B. Holt J. W. POSTER LOCATION #117 Regional Variability in the Spiral Troughs of the North Polar Layered Deposits, Mars, as Observed by SHARAD [#1392] We conducted a cap wide study of NPLD spiral troughs with SHARAD. Regional diversity is discussed based on morphological and stratigraphic features. Becerra P. Byrne S. Mattson S. Herkenhoff K. E. HiRISE Team POSTER LOCATION #118 Martian Polar Stratigraphy from HiRISE Stereo Topography [#2408] We present a new method to analyze the stratigraphy of the polar layered deposits based on high-resolution Digital Terrain Models (DTM) and wavelet analysis. Milkovich S. M. POSTER LOCATION #119 Surface Expression of Radar Reflections Within Promethei Lingula, South Polar Layered Deposits, Mars [#2098] Intersection of / Layers and reflections lead / To polar insights. 45th Lunar and Planetary Science Conference (2014) sess706.pdf Kreslavsky M. A. Head J. W. POSTER LOCATION #120 Active Layer on Mars: When and Where? [#2715] Active layer sorting cannot explain rock circles in Elysium Planitia. Soliflucion lobes in several high N craters can result from a recent active layer episode. Hansen C. J. Diniega S. Bridges N. Byrne S. Dundas C. et al. POSTER LOCATION #121 Wind and Dry Ice: Agents of Change on Mars’ North Polar Erg [#1667] Both wind and seasonal CO2 ice sculpt the dunes in Mars’ north polar erg in today’s climate. Portyankina G. Hansen C. J. Aye K.-M. POSTER LOCATION #122 Differences in Seasonal CO2 Cover of Dune Slopes in Martian Northern Polar Erg [#2289] We are investigating the connection between extensive spring activity in martian polar erg and the modification of the dunes observed by HiRISE. Tyson S. Lane S. J. Wilson L. Gilbert J. S. POSTER LOCATION #123 Magma-Cryosphere Interactions on Mars — An Experimental Investigation of Physical Processes [#1124] We describe laboratory experiments on how simulated martian cryosphere reacts to heating by a sill-like intrusion causing ice melting and water/steam formation. Cassanelli J. P. Head J. W. Fastook J. L. POSTER LOCATION #124 Late Noachian “Icy Highlands” Mars: Implications for Melting and Ground-Water Recharge Across the Tharsis Rise [#1501] We investigate Late Noachian ice deposits across the Tharsis rise and the implications for melting in response to regionally elevated geothermal heat fluxes. Litvak M. L. Mitrofanov I. G. Boynton W. V. Fedosov F. Golovin D. et al. POSTER LOCATION #125 Following Subsurface Water Distribution in Past, Current and Future Mars Orbital and Surface Missions Based on the Neutron Spectroscopy Observations [#1842] The comparison of orbital and surface studies of subsurface water distribution at equatorial latitudes of Mars based on neutron spectrometry measurements. Bapst J. Bandfield J. L. Wood S. E. POSTER LOCATION #126 Investigating the Timing and Extent of Seasonal Surface Water Frost on Mars with MGS TES [#1594] We investigate the timing and extent of seasonal water frost on Mars’ surface using spaceborne instruments and lander observations. Piqueux S. Kleinböhl A. Hayne P. McCleese D. Kass D. et al. POSTER LOCATION #127 Climatological Growth and Recession Cycles of the Martian Seasonal Caps Using Thermal Emission Spectrometer (TES) and Mars Climate Sounder (MCS) Data [#1975] We present climatological (i.e., median) seasonal CO2 cap edge maps derived from eight Mars Years (MY) of surface observations by TES and MCS during clear years. Pilorget C. Edwards C. S. Ehlmann B. L. Forget F. Millour E. POSTER LOCATION #128 Material Ejection by the Colds Jets and Temperature Evolution of the South Seasonal Polar Cap of Mars from THEMIS/CRISM Observations and Implications for the Surface Properties [#1538] We have used CRISM and THEMIS data along with a thermal numerical model to quantify the amount of material ejected by the cold jets on the Mars polar caps. Travis B. J. Feldman W. C. POSTER LOCATION #129 Factors Controlling Polygon Sizes in the Martian Near-Surface [#2568] Numerical hydrothermochemical flow simulations indicate that soil permeability and salt content are major determinants of martian polygon features. .