 | | Journal (article/letter/editorial) | | changing Martian climate from the mineralogy at Mawrth Vallis Janice L. Bishop a,∗ , Elizabeth B. Rampe b...Available online 24 May 2016 Editor: C. Sotin Keywords: Mars mineralogy spectroscopy weathering climate a b...s t r a c t Layered outcrops in the Mawrth Vallis region of Mars contain the greatest diversity of aqueous...discrepancies between TES and CRISM of clay-bearing units on Mars. We demonstrate here that the poorly crystalline...to the uppermost allophane/imogolite unit in Mawrth Vallis signifies a change in climate from a warm and |  | | Journal (article/letter/editorial) | | the formation and alteration of phyllosilicates on Mars ⁎ Patricia Craiga, , Vincent Chevrierb, M.R.G....S T R A C T Keywords: Mars Mineralogy Deccan Volcanic Province Mawrth Vallis Chemical weathering To...To fully understand phyllosilicates on Mars, it is beneficial to study analog deposits on Earth. One attractive...mixture of montmorillonite and hematite, yellow boles contain vermiculite and minor montmorillonite and green...celadonite can transform into smectites (such as montmorillonite), often with vermiculite as an intermediate |  | | Journal (article/letter/editorial) | | and different levels of alteration around Mawrth Vallis, Mars Sheng Gou, Zongyu Yue, Kaichang Di*, Jinnian...main phyllosilicates exposed in and around Mawrth Vallis: Al phyllosilicates and Fe/Mg phyllosilicates...spectra shows that Al phyllosilicates such as montmorillonite, hydrated silica, kaolinite; Fe/Mg phyllosilicates...and textures are observed on both sides of Mawrth Vallis from HiRISE images, suggesting that the geological...abundance Alteration levels Mawrth Vallis 1. Introduction Mawrth Vallis outflow channel, centred at approximately |  | Bishop, Janice L., Loizeau, Damien, McKeown, Nancy K., Saper, Lee, Dyar, M. Darby, Des Marais, David J., Parente, Mario, Murchie, Scott L. (2013) What the ancient phyllosilicates at Mawrth Vallis can tell us about possible habitability on early Mars. Planetary and Space Science, 86. 130-149 doi:10.1016/j.pss.2013.05.006 | Journal (article/letter/editorial) | | phyllosilicates at Mawrth Vallis can tell us about possible habitability on early Mars Janice L. Bishop...Available online 24 May 2013 Phyllosilicate deposits on Mars provide an opportunity to evaluate aqueous activity...(VNIR) Mars Reconnaissance Orbiter (MRO) Compact Reconnaissance Imaging Spectrometer for Mars (CRISM)...thick, complex profiles of phyllosilicates at Mawrth Vallis, Mars that are consistent with long-term aqueous...formed on early Mars or not, evaluating the type and thickness of clay-bearing units on Mars provides insights |  | McKeown, Nancy, Bishop, Janice L., Cuadros, Javier, Hillier, Stephen, Amador, Elena, Makarewicz, Heather D., Parente, Mario, Silver, Eli A. (2011) Interpretation of reflectance spectra of clay mineral-silica mixtures: implications for Martian clay mineralogy at Mawrth Vallis. Clays and Clay Minerals, 59 (4) 400-415 doi:10.1346/ccmn.2011.0590404 | Journal (article/letter/editorial) | | IMPLICATIONS FOR MARTIAN CLAY MINERALOGY AT MAWRTH VALLIS N A NC Y K. M C K E O W N 1 , * , { , J AN I...Abstract—The Al-clay-rich rock units at Mawrth Vallis, Mars, have been identified as mixtures of multiple...of rocks at Mawrth Vallis: kaolinite-opal-A, kaolinite-montmorillonite, montmorillonite-obsidian, mo...experiments are mixtures of montmorillonite and obsidian having ~50% montmorillonite or mixtures of kaolinite...kaolinite and montmorillonite with ~30% kaolinite. For both of these mixtures the maximum inflection point |  | | Journal (article/letter/editorial) | | of compositional stratigraphy on Mars: Insights from the Mawrth Vallis region Joseph R. Michalski a,b,⇑...18 May 2013 Available online 6 June 2013 Keyword: Mars Infrared observations Mineralogy Geological processes...for the formation of compositional stratigraphy on Mars and tested the hypotheses on well-exposed sulfate-...clay-bearing rocks found in the Mawrth Vallis region. In the Mawrth Vallis area, interpretations of compositional...associated with rainfall, but the presence of montmorillonite, beidellite, and sulfates argue against intense |  | | Journal (article/letter/editorial) | | Nontronite dissolution rates and implications for Mars S.R. Gainey a,⇑, E.M. Hausrath a, J.A. Hurowitz...multiple locations in ancient terrains on Mars, including Mawrth Vallis, Nilli Fossae, north of the Syrtis Major...plateau, Terra Meridiani, and the landing site of the Mars Science Laboratory (MSL), Gale Crater. Given the...particular, nontronite detected at Mawrth Vallis is overlain by montmorillonite and kaolinite, and it has been...to better understand clay mineral weathering on Mars, we measured dissolution rates of nontronite in |  | Michalski, Joseph R., Bibring, Jean-Pierre, Poulet, François, Loizeau, Damien, Mangold, Nicolas, Dobrea, Eldar Noe, Bishop, Janice L., Wray, James J., McKeown, Nancy K., Parente, Mario, Hauber, Ernst, Altieri, Francesca, Carrozzo, F. Giacomo, Niles, Paul B. (2010) The Mawrth Vallis Region of Mars: A Potential Landing Site for the Mars Science Laboratory (MSL) Mission. Astrobiology, 10 (7) 687-703 doi:10.1089/ast.2010.0491 | Journal (article/letter/editorial) | | 1089/ast.2010.0491 The Mawrth Vallis Region of Mars: A Potential Landing Site for the Mars Science Laboratory...Niles10 Abstract The primary objective of NASA’s Mars Science Laboratory (MSL) mission, which will launch...is to characterize the habitability of a site on Mars through detailed analyses of the composition and...value of a possible landing site in the Mawrth Vallis region of Mars that is targeted directly on some of...materials in the Solar System. The area around Mawrth Vallis contains a vast (>1106 km2) deposit of phyllosilicate-rich |  | Bishop, Janice L., Gates, Will P., Makarewicz, Heather D., McKeown, Nancy K., Hiroi, Takahiro (2011) Reflectance spectroscopy of beidellites and their importance for Mars. Clays and Clay Minerals, 59 (4) 378-399 doi:10.1346/ccmn.2011.0590403 | Journal (article/letter/editorial) | | SPECTROSCOPY OF BEIDELLITES AND THEIR IMPORTANCE FOR MARS J A N IC E L . B I SH O P 1 , W I L L P. G A T ES...RI 02912, USA Abstract—Beidellites may exist on Mars and represent intermediate alteration products;...environments than previously identified because montmorillonite is a low-grade alteration mineral whereas beidellite...under study to support their orbital detection on Mars, where spectral signatures of other Al-rich phyllosilicates...compositions between those of beidellite and montmorillonite, and emphasis is placed here on the OH combination |  | | Journal (article/letter/editorial) | | The detection of phyllosilicates and sulfates on Mars has revealed a complex aqueous history which suggests...spatially. Recent observations by MRO CRISM in Mawrth Vallis have shown that phyllosilicate deposits exhibit...We exposed nontronite (Fe-rich smectite), montmorillonite (Al-rich smectite) and kaolinite to H2SO4 solutions...most unstable when acid leached, followed by montmorillonite and then kaolinite. Progressive acidic leaching...acidic Al,Fe-rich solution. Alteration of montmorillonite resulted in the formation of Fe-, Al-, Ca- |  | | Journal (article/letter/editorial) | | phyllosilicate-bearing samples as analog for desiccation cracks on Mars: Experimental setup and initial results M.R. El-Maarry...2015 Available online 3 April 2015 The surface of Mars is host to many regions displaying polygonal crack...allows us to carry out desiccation experiments on Mars-analog materials in an effort to constrain the physical...and photometric properties of analog materials in Mars-like conditions. The initial experiments that have...may explain the presence of polygonal patterns on Mars in sediments that lack spectral confirmation of phyllosilicates |  | Che, Congcong, Glotch, Timothy D., Bish, David L., Michalski, Joseph R., Xu, Wenqian (2011) Spectroscopic study of the dehydration and/or dehydroxylation of phyllosilicate and zeolite minerals. Journal of Geophysical Research, 116. doi:10.1029/2010je003740 | Journal (article/letter/editorial) | | 2011; published 25 May 2011. [1] Phyllosilicates on Mars mapped by infrared spectroscopic techniques could...1029/2010JE003740. 1. Introduction [2] Data from the Mars Express Observatoire pour la Minéralogie, l’Eau...Compact Reconnassaince Imaging Spectrometer for Mars (MRO/CRISM) visible and near infrared imaging spectrometers...Phyllosilicates are detected in a number of contexts on Mars, primarily associated with ancient, layered terrain...unambiguously detected phyllosilicates on the surface of Mars. The TES Surface Type 2 (ST2) was initially interpreted |  | Poulet, F., , , Bibring, J.-P., Mustard, J. F., Gendrin, A., Mangold, N., Langevin, Y., Arvidson, R. E., Gondet, B., Gomez, C. (2005) Phyllosilicates on Mars and implications for early martian climate. Nature, 438 (7068) 623-627 doi:10.1038/nature04274 | Journal (article/letter/editorial) | | 2005|doi:10.1038/nature04274 ARTICLES Phyllosilicates on Mars and implications for early martian climate F. Poulet1...evidence of the past presence of liquid water on Mars. Here we report the unambiguous detection of diverse...observations by the OMEGA imaging spectrometer on board the Mars Express spacecraft. These minerals are mainly associated...two distinct climatic episodes: an early Noachian Mars, resulting in the formation of hydrated silicates...sulphates formed. The presence of hydrated minerals on Mars provides a record of water-related processes. Hydrated |  | Roush, Ted L., Bishop, Janice L., Brown, Adrian J., Blake, David F., Bristow, Thomas F. (2015) Laboratory reflectance spectra of clay minerals mixed with Mars analog materials: Toward enabling quantitative clay abundances from Mars spectra. Icarus, 258. 454-466 doi:10.1016/j.icarus.2015.06.035 | Journal (article/letter/editorial) | | mixed with Mars analog materials: Toward enabling quantitative clay abundances from Mars spectra Ted...2015 Available online 29 June 2015 Keywords: Mars Mars, surface Mineralogy a b s t r a c t Quantitative...spectra of the end-member materials: saponite, montmorillonite, pyroxene, and palagonitic soil. Reflectance...obtained for physical mixtures of saponite and montmorillonite with pyroxene, and saponite with palagonitic...associated with the presence of saponite and montmorillonite, respectively, as a function of the abundance |  | | Journal (article/letter/editorial) | | Abstract Clay minerals found in and near the surface of Mars contain unique information about the geochemical...warm, wet conditions promoting weathering—such as Mars >3.5 Ga before the present, when clay minerals were...inform clay formation environments on Mars. Keywords: Nontronite, Mars, clay minerals, Columbia River Basalts...weathering and clay formation. As the surface of Mars is largely basaltic in composition, basalt weathering...systems on Earth have been targeted as potential Mars analogs (Michalski et al. 2006; Ehlmann et al. 2012; |  | | Journal (article/letter/editorial) | | abandoned mine drainage systems: Implications for Mars Selby Cull a,∗ , Charles A. Cravotta III b , Julia...Available online xxxx Editor: C. Sotin Keywords: Mars remote sensing acid mine drainage a b s t r a c...c t Remote sensing studies of the surface of Mars use visible- to near-infrared (VNIR) spectroscopy to...past environmental conditions on the surface of Mars. However, due to differences in optical properties...should be taken in interpreting environments on Mars where ferrihydrite, schwertmannite, or goethite |  | Cloutis, Edward A., Hewson, David, Applin, Daniel M., Mann, J.Paul, Mertzman, Stanley A. (2018) Raman and reflectance spectroscopy of serpentinites and related hydrated silicates: Effects of physical properties and observational parameters, and implications for detection and characterization on Mars. Planetary and Space Science, 159. 66-83 doi:10.1016/j.pss.2018.04.016 | Journal (article/letter/editorial) | | implications for detection and characterization on Mars Edward A. Cloutis a, *, David Hewson a, Daniel M...important role in future surface exploration of Mars. We undertook a study of the 532 nm Raman and 0...reflectance observational data for Mars to be provided by future Mars landed missions. We examined the...applications in planetary exploration, particularly for Mars. This is due to its ability to uniquely identify...that are, or may be, present on, or relevant to, Mars (e.g., Jorge-Villar and Edwards, 2006; De Gelder |  | Mavris, Christian, Cuadros, Javier, Nieto, José Miguel, Bishop, Janice L., Michalski, Joseph R. (2018) Diverse mineral assemblages of acidic alteration in the Rio Tinto area (southwest Spain): Implications for Mars. American Mineralogist, 103 (12) 1877-1890 doi:10.2138/am-2018-6330 | Journal (article/letter/editorial) | | Rio Tinto area (southwest Spain): Implications for Mars Christian Mavris1, Javier Cuadros1,*,†, José Miguel...assemblages on Mars because they enable detailed analysis of spectroscopic data from Mars and aid environmental...environments. They represent Earth analogs of areas on Mars that underwent acidic alteration. X‑ray diffraction...kaolinite-alunite occurrences on Mars as worthy of specific investigation. Acid alteration on Mars is expected to be...of fine alteration rims. Alunite occurrences on Mars in the absence of goethite may indicate an acid |  | Flahaut, Jessica, Bishop, Janice L., Silvestro, Simone, Tedesco, Dario, Daniel, Isabelle, Loizeau, Damien (2019) The Italian Solfatara as an analog for Mars fumarolic alteration. American Mineralogist, 104 (11) 1565-1577 doi:10.2138/am-2019-6899 | Journal (article/letter/editorial) | | 1565–1577, 2019 The Italian Solfatara as an analog for Mars fumarolic alteration Jessica Flahaut 1,*,†, Janice...continental vents on Mars is the in situ detection of amorphous silicarich outcrops by the Mars Exploration Rover...identification of fumaroles and hot spring deposits on Mars, we surveyed their characteristics at the analog...environments with the next-generation Mars rovers. Keywords: Mars analog, hydrothermalism, vents, fumaroles...environments have long been presumed to exist on Mars based on orbital observations, terrestrial analogs |  | Peretyazhko, T.S., Niles, P.B., Sutter, B., Morris, R.V., Agresti, D.G., Le, L., Ming, D.W. (2018) Smectite formation in the presence of sulfuric acid: Implications for acidic smectite formation on early Mars. Geochimica et Cosmochimica Acta, 220. 248-260 doi:10.1016/j.gca.2017.10.004 | Journal (article/letter/editorial) | | Implications for acidic smectite formation on early Mars T.S. Peretyazhko a,⇑, P.B. Niles b, B. Sutter a...neutral to alkaline conditions. We propose that Mars experienced acidic events caused by sulfuric acid...present a model for global-scale smectite formation on Mars via acid-sulfate conditions created by the volcanic...2017 Elsevier Ltd. All rights reserved. Keywords: Mars; Smectite; Basalt alteration; Acidity; Sulfuric...been proposed to explain the observed mineralogy on Mars (Bibring et al., 2006). ⇑ Corresponding author. |  | | Journal (article/letter/editorial) | | widespread detection of clay minerals on the surface of Mars (e.g. Poulet et al., 2005; Bibring et al., 2006;...deposits that have been identified from orbit on Mars are naturally more poorly constrained. However,...might be identified on Mars. As is the case for Earth, clay mineral deposits on Mars are quite diverse. In...spectral properties of montmorillonite and beidellite, both of which may be present on Mars, whereas McKeown...these studies indicate that the clay mineralogy of Mars is probably more complex than our 338 Milliken |  | Steiner, M.H., Hausrath, E.M., Elwood Madden, M.E., Tschauner, O., Ehlmann, B.L., Olsen, A.A., Gainey, S.R., Smith, J.S. (2016) Dissolution of nontronite in chloride brines and implications for the aqueous history of Mars. Geochimica et Cosmochimica Acta, 195. 259-276 doi:10.1016/j.gca.2016.08.035 | Journal (article/letter/editorial) | | Brines and Implications for the Aqueous History of Mars M.H. Steiner, E.M. Hausrath, M.E. Elwood Madden...Brines and Implications for the Aqueous History of Mars, Geochimica et Cosmochimica Acta (2016), doi: http://dx...Brines and Implications for the Aqueous History of Mars M.H. Steiner1, E.M. Hausrath1,*, M.E. Elwood Madden2...presence of recent liquid water, including brines, on Mars. Brines have therefore likely impacted clay minerals...with brines at the low temperatures prevalent on Mars, with important implications for the paleoclimate |  | | Journal (article/letter/editorial) | | B S T R A C T Editor: Michael E. Boettcher On Mars, mineral sequences have been detected and they are...as suggested also by climatic models. Keywords: Mars Clay minerals Carbonates Column experiments Weathering...over the equatorial to mid-latitudinal regions of Mars, which argues for a regional to planetary scale...by evoking a sufficient greenhouse effect on Early Mars (Forget et al., 2013; Halevy and Iii, 2014; Kerber...these weathering profiles (Bultel et al., 2019). on Mars, the different climatic simulations tend toward a |  | Ehlmann, Bethany L., Swayze, Gregg A., Milliken, Ralph E., Mustard, John F., Clark, Roger N., Murchie, Scott L., Breit, George N., Wray, James J., Gondet, Brigitte, Poulet, Francois, Carter, John, Calvin, Wendy M., Benzel, William M., Seelos, Kimberly D. (2016) Discovery of alunite in Cross crater, Terra Sirenum, Mars: Evidence for acidic, sulfurous waters. American Mineralogist, 101 (7) 1527-1542 doi:10.2138/am-2016-5574 | Journal (article/letter/editorial) | | Discovery of alunite in Cross crater, Terra Sirenum, Mars: Evidence for acidic, sulfurous watersk Bethany...Noachian highlands of the Terra Sirenum region of Mars (30°S, 158°W), which hosts aluminum phyllosilicate...imaging spectrometer on Mars Express. Using high-resolution data from the Mars Reconnaissance Orbiter...Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) show absorptions diagnostic of alunite....phyllosilicates, hydrothermal activity, lakes, groundwater, Mars, sediments, infrared spectroscopy, Invited Centennial |  | Friedlander, Lonia R., Glotch, Timothy D., Phillips, Brian L., Vaughn, John S., Michalski, Josep R. (2016) Examining Structural and Related Spectral Change in Mars-Relevant Phyllosilicates After Experimental Impacts Between 10–40 GPA. Clays and Clay Minerals, 64 (3) 189-209 doi:10.1346/ccmn.2016.0640302 | Journal (article/letter/editorial) | | is key to understanding past aqueous activity on Mars, but martian phyllosilicates are old (>3.5 Ga) and...identifications from heavily bombarded terrains on Mars. Key Words—Dioctahedral Phyllosilicates, Martian...Extensive clay mineral deposits have been identified on Mars by orbital VNIR reflectance spectroscopic remote...2014). The identification of phyllosilicates on Mars is exciting because phyllosilicates provide evidence...must be as specific as possible. Clay minerals on Mars, however, are often found in ancient * E-mail address |
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