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VOLCANIC PROCESSES 6:00 P.M Lunar and Planetary Science XLVIII (2017) sess316.pdf Tuesday, March 21, 2017 [T316] POSTER SESSION I: VOLCANIC PROCESSES 6:00 p.m. Town Center Exhibit Area Colson R. O. Young E. Anderson L. POSTER LOCATION #256 Nickel Distribution Between Immiscible Melts as a Means to Understand the Influence of Ferric Iron on NiO Activity Coefficients [#1548] Distribution of NiO between two immiscible melts, NiO activity coefficient, and the effects of ferric iron. Lanzirotti A. Dyar M. D. Sutton S. R. Newville M. Head E. et al. POSTER LOCATION #257 Preliminary Calibration for Accurate Predictions of Microscale Oxygen Barometry in Silicate Glasses Using Vanadium X-Ray Absorption Spectroscopy: A Multivariate Approach [#1650] This study explores the use of multivariate analysis models for vanadium XANES data from magmatic glasses to predict melt fO2 with improved precision/accuracy. Hammer J. E. Ishii H. A. Bradley J. P. Shea T. Welsch B. et al. POSTER LOCATION #258 Advanced Materials Characterization of P-Rich and P-Poor Regions Within Single-Crystal Olivine [#2375] We are studying how P is incorporated in olivine, by resolving differences in the abundance and geometry of defects within P-rich and P-poor olivine. Prissel T. C. Gross J. Draper D. S. POSTER LOCATION #259 Application of Olivine-Spinel Equilibria to Extraterrestrial Igneous Systems [#2436] In this abstract, we demonstrate the applicability of olivine-spinel equilibria and Al-in-olivine geothermometry to igneous rocks throughout the solar system. Ptáček M. P. Greber N. D. Pettke T. Gfeller L. Dauphas N. POSTER LOCATION #260 The Isotopic Fractionation of Titanium in Igneous Systems: Implications for Studies of Early Differentiated Asteroids [#2620] Titanium stable isotopes can be used as an alteration-resistant proxy for the fractional crystallization of a sample, including differentiated meteorites. Elvrum R. A. Schaefbauer E. R. Colson R. O. POSTER LOCATION #261 Effect of Ferric Iron on the Activity Coefficient of Nickel Oxide in Silicate Melts [#1526] This study looks at the effect of ferric iron on the activity coefficient of nickel(II) oxide (NiO) in silicate melts. Chen J. Ling Z. C. Ni Y. H. Huang Y. H. Wu Z. C. et al. POSTER LOCATION #262 Raman Spectroscopic Studies of Lunar Basaltic Meteorite Northwest Africa 4734 [#2277] We apply Raman spectroscopy to characterize variations of mineral chemistry and extensive shock products in the lunar basaltic meteorite Northwest Africa 4734. Guiot P. Carter J. Vincendon M. Baklouti D. Langevin Y. POSTER LOCATION #263 Searching for Signatures of Io’s Silicate Crust [#1813] We report analysis of VLT/SPHERE data of Io’s surface in the near-IR aiming at the identification of its silicated crust, yielding a new putative 1.23 µm band. Rathbun J. A. Saballett S. Lopes R. M. C. Spencer J. R. POSTER LOCATION #264 Comparison of Tidal Dissipation Models to Global Distribution of Active Ionian Volcanoes from Galileo NIMS, PPR, and New Horizons LEISA [#2348] Io’s volcanoes are the clearest signature of tidal heating and measurements of the total heat output and how it varies in space and time are useful constraints on tidal heating. Schools J. Montési L. G. J. POSTER LOCATION #265 Formation of Barriers to Melt Ascent at the Base of the Ionian Lithosphere [#2723] Ascending melt stopped / But must continue rising / Resurfacing Io. Lunar and Planetary Science XLVIII (2017) sess316.pdf Patthoff D. A. Davies A. G. POSTER LOCATION #266 Tidal Stresses and Volcanism on Io [#1748] Tidal stresses may / Control the volcanism / Go back to Io. Black B. A. Manga M. POSTER LOCATION #267 Why Mars May Have a Higher Ratio of Intrusive to Extrusive Magmatism than Earth [#1247] Crustal heating and volatile-poor magmas can explain suppressed eruptibility of martian magmas. Degruyter W. Huber C. Head J. W. Bachmann O. POSTER LOCATION #268 Controls on Magmatic Extrusive: Intrusive Ratio on Earth and Mars [#2034] We will explore the potential of magma reservoirs to produce eruptions under different conditions on Earth and Mars. Kiefer W. S. Weller M. B. POSTER LOCATION #269 What Causes the Relationship Between Large Impact Basin Rims and Volcanism on Mars? [#1918] Large volcanos on the rims of the impact basins Hellas, Isidis, and Utopia may be due to heating of the mantle by radioactivity in impact-thickened crust. Mohr K. J. Williams D. A. Garry W. B. Bleacher J. E. POSTER LOCATION #270 Geologic Mapping of Ascraeus Mons, Mars [#1306] Covered by lava / Mapping complex history / Ascraeus Mons speaks. Chadwick J. Fink S. Tucker W. Waring B. McGovern P. POSTER LOCATION #271 Misalignment of Lava Flows from Topographic Slopes Reveals Amazonian Uplift of Arsia Mons, Mars [#2713] Lava flow directions near Arsia Mons are misaligned from local topographic slopes, consistent with uplift of Arsia Mons after the flows were emplaced. Golder K. B. Burr D. M. POSTER LOCATION #272 Age Discrepancies Within the Cerberus Plains Channelized Lavas, Mars: Obscured Eruption Sources? [#2045] A decreasing-downstream age trend from crater counts observed within the Cerberus channel lavas may be suggestive of previously unidentified eruption sources. Williams J.-P. Dohm J. M. Soare R. J. Flahaut J. Lopes R. M. C. et al. POSTER LOCATION #273 Argyre Mons and Other Volcanic Features Within Argyre Basin, Mars [#2682] Argyre Mons, along with additional endogenic modification of the Argyre Basin floor, indicates the region has experienced episodes of volcanism. Garcia G. C. Brand B. D. Bandfield J. L. POSTER LOCATION #274 Developing a Thermophysical and Geomorphologic Framework to Identify Evidence for Ancient Explosive Volcanism on Mars [#2722] Recent geomorphologic and thermo-physical observations of Apollinaris Mons suggest the volcano experienced an explosive phase during its eruptive history. Chuang F. C. Crown D. A. Berman D. C. POSTER LOCATION #275 Erosional History of the Northeastern Flank of Apollinaris Mons, Mars: Insights from High-Resolution Morphology, Topography, and Crater Populations [#2126] From geologic mapping, a minimum of ~100 m material has been removed and potentially redistributed downslope beyond the NE flanks of Apollinaris Mons. Lunar and Planetary Science XLVIII (2017) sess316.pdf Churchill J. J. C. Schmidt M. E. Berger J. A. Fueten F. Tornabene L. L. et al. POSTER LOCATION #276 Possible Volcanic Avalanche Deposit North of Gale Crater [#2411] Landform north of Gale Crater may be a sector collapsed volcano that produced a debris avalanche that might be a source for sediments examined by Curiosity. Crown D. A. Berman D. C. Platz T. Scheidt S. P. POSTER LOCATION #277 Geologic Mapping of Alba Mons, Mars: Constraints on Summit Evolution and Eruptive History [#2301] This study includes generation of two 1:1M-scale geologic maps covering the Alba Mons summit region and western flanks. .
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