Lunar and Planetary Science XXXVI (2005) sess42.pdf
Tuesday, March 15, 2005 POSTER SESSION I: MARS VOLCANISM 7:00 p.m. Fitness Center
Hughes S. S. Sakimoto S. E. H. Gregg T. K. P. Brady S. M. Petrologic Evidence for Multiple, Chemically Evolved Magma Batches and Implications for Plains Volcanism on Earth and Mars [#2396] Geochemical models of magma evolution, oxygen fugacity determinations, and variable eruptive temperatures of plains-style basalts suggest an extensive system of small mafic intrusions beneath the volcanic plains.
Brady S. M. Hughes S. S. Sakimoto S. E. H. Gregg T. K. P. Exploring the Link Between Geochemistry and Volcano Morphology on the Eastern Snake River Plain, a Planetary Analog to Mars Volcanism [#2359] This study shows a positive correlation between a strong diktytaxitic texture and increased summit steepness among ESRP basaltic shield volcanoes.
Ori G. G. Pacifici A. Komatsu G. Neukum G. HRSC Science Team A Probable Fluid Lava Flow in the Hebes Mensa (Mars) Studied by HRSC Images [#1648] A dark rills and pond features on the northern slope of the Hebes Mensa could be formed by fluid lava flows. Mud and debris flows can be taken into account, but the stability of the feature (observed during Viking time) support a volcanic origin.
Shockey K. M. Zimbelman J. R. A Long Lava Flow in the Tharsis Region of Mars as Mapped Using THEMIS Data [#1937] A long lava flow to the west of Ascraeus Mons, was previously examined using MOLA data. The same flow is now being mapped using THEMIS data.
Rampey M. L. Milam K. A. McSween H. Y. Jr. Moersch J. E. Christensen P. R. Lava and Flows of the Arcadia Region of Mars [#1834] This study examines morphological and spectral data sets from a region in the northern plains of Mars informally known as the Tyndall Dome Field (TDF) for evidence of silicic volcanism.
Miyamoto H. Crown D. A. Haruyama J. Kobayashi T. Nishibori T. Okada T. Rodriguez J. A. Rokugawa S. Tokunaga T. Suzuki K. Masumoto K. Emplacement of Pahoehoe Lobes: A Simplified Two-Component Model and Field Measurements by Ground Penetrating Radar [#1619] We present a simple two-component model as a possible theoretical explanation of the self-confinement mechanism of the lateral spreading of an isolated lobe. The model also explains why the cross section of a flow has a parabolic shape.
Jaeger W. L. Keszthelyi L. P. Burr D. M. Emery J. P. Baker V. R. McEwen A. S. Miyamoto H. Basaltic Ring Structures as an Analog for Ring Features in Athabasca Valles, Mars [#1886] Ring structures on the floor of Athabasca Valles, Mars are similar in morphology and geologic context to terrestrial basaltic ring structures in the Channeled Scabland, which formed by phreato-volcanism in actively-inflating basaltic sheet flows.
Mitchell K. L. Wilson L. Recent and Future Volcanism on Dormant Mars [#1933] We suggest that Mars is dormant rather than extinct, in a cycle characterised by ~100 Ma epochs of inactivity, punctuated with ~1 Ma, single-centre, eruptive epochs. We then estimate when the next eruption will occur, and its likely duration.
Lunar and Planetary Science XXXVI (2005) sess42.pdf
Milazzo M. P. McEwen A. S. Endogenic Thermal Activity at Cerberus Fossae, Mars? [#1998] Cerberus Fossae: Compare spring, autumn brightness. Is Mars still alive?
Crown D. A. Berman D. C. Bleamaster L. F. III Chuang F. C. Hartmann W. K. Martian Highland Paterae: Studies of Volcanic and Degradation Histories from High-Resolution Images and Impact Crater Populations [#1476] Crater size-frequency distributions from MOC, THEMIS, and Viking images and small-scale morphologic characteristics are used to provide new assessments of the volcanic and degradation histories of Martian highland paterae.