Journal of Geophysical Research: Planets


Results from the first 360 Sols of the Mars Science Laboratory Mission: Bradbury Landing through Yellowknife Bay

The Mars Science Laboratory Mission featured a novel EDL system that recorded events during landing, and a unique rover payload that successfully acquired data from the time of landing through the first 100 sols. These data sets are diverse and include atmospheric and surface imaging during landing; post-landing assessment of the terrain including landscape morphology, rock and soil composition, rock and soil textures, and the chemical, mineralogical, and textural anatomy of a small eolian bedform. In addition the atmosphere was monitored as a time series for information regarding pressure, temperature (and also ground temperature), wind velocity and direction, and UV flux. Finally, the rover measured background cosmic and solar radiation fluxes, as well as the subsurface composition of neutron absorbers such as hydrogen and chlorine. This special set would represent a compilation of the MSL's initial results.

Guest Editors: John Grotzinger, California Institute of Technology
Ashwin R. Vasavada, Jet Propulsion Laboratory

  1. Regular Articles

    1. Top of page
    2. Regular Articles
    3. Research Articles
    1. You have free access to this content
      Neutron background environment measured by the Mars Science Laboratory's Dynamic Albedo of Neutrons instrument during the first 100 sols (pages 2400–2412)

      I. Jun, I. Mitrofanov, M. L. Litvak, A. B. Sanin, W. Kim, A. Behar, W. V. Boynton, L. DeFlores, F. Fedosov, D. Golovin, C. Hardgrove, K. Harshman, A. S. Kozyrev, R. O. Kuzmin, A. Malakhov, M. Mischna, J. Moersch, M. Mokrousov, S. Nikiforov, V. N. Shvetsov, C. Tate, V. I. Tret'yakov and A. Vostrukhin

      Version of Record online: 25 NOV 2013 | DOI: 10.1002/2013JE004510

      Key Points

      • The DAN passive mode measures the MMRTG neutrons and GCR-induced neutrons
      • The thermal neutron counts show strong variability along the rover traverse
      • The majority of the DAN passive counts are from the MMRTG neutrons
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      Characteristics of pebble- and cobble-sized clasts along the Curiosity rover traverse from Bradbury Landing to Rocknest (pages 2361–2380)

      R. A. Yingst, L. C. Kah, M. Palucis, R. M. E. Williams, J. Garvin, J. C. Bridges, N. Bridges, R. G. Deen, J. Farmer, O. Gasnault, W. Goetz, V. E. Hamilton, V. Hipkin, J. K. Jensen, P. L. King, A. Koefoed, S. P. Le Mouélic, M. B Madsen, N. Mangold, J. Martinez-Frias, S. Maurice, E. M. McCartney, H. Newsom, O. Pariser, V. H. Sautter and R. C. Wiens

      Version of Record online: 22 NOV 2013 | DOI: 10.1002/2013JE004435

      Key Points

      • We examined Curiosity clasts to assess modification and transport processes
      • Pebble- to cobble-sized clasts reflect a mix of two transport mechanisms
      • Water was an important transporting agent at the Curiosity landing site
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      MAHLI at the Rocknest sand shadow: Science and science-enabling activities (pages 2338–2360)

      M. E. Minitti, L. C. Kah, R. A. Yingst, K. S. Edgett, R. C. Anderson, L. W. Beegle, J. L. Carsten, R. G. Deen, W. Goetz, C. Hardgrove, D. E. Harker, K. E. Herkenhoff, J. A. Hurowitz, L. Jandura, M. R. Kennedy, G. Kocurek, G. M. Krezoski, S. R. Kuhn, D. Limonadi, L. Lipkaman, M. B. Madsen, T. S. Olson, M. L. Robinson, S. K. Rowland, D. M. Rubin, C. Seybold, J. Schieber, M. Schmidt, D. Y. Sumner, V. V. Tompkins, J. K. Van Beek and T. Van Beek

      Version of Record online: 20 NOV 2013 | DOI: 10.1002/2013JE004426

      Key Points

      • Curiosity acquired and examined its first solid sample at the Rocknest sand shadow
      • MAHLI images were critical in the science investigation of Rocknest materials
      • MAHLI images played a critical role supporting first-time engineering activities
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      Evidence for perchlorates and the origin of chlorinated hydrocarbons detected by SAM at the Rocknest aeolian deposit in Gale Crater (pages 1955–1973)

      Daniel P. Glavin, Caroline Freissinet, Kristen E. Miller, Jennifer L. Eigenbrode, Anna E. Brunner, Arnaud Buch, Brad Sutter, P. Douglas Archer Jr., Sushil K. Atreya, William B. Brinckerhoff, Michel Cabane, Patrice Coll, Pamela G. Conrad, David Coscia, Jason P. Dworkin, Heather B. Franz, John P. Grotzinger, Laurie A. Leshin, Mildred G. Martin, Christopher McKay, Douglas W. Ming, Rafael Navarro-González, Alexander Pavlov, Andrew Steele, Roger E. Summons, Cyril Szopa, Samuel Teinturier and Paul R. Mahaffy

      Version of Record online: 1 OCT 2013 | DOI: 10.1002/jgre.20144

      Key Points

      • Perchlorates and chlorinated hydrocarbons detected by SAM at Rocknest
      • Chlorohydrocarbons produced from terrestrial organic carbon and Martian chlorine
      • No definitive evidence of Martian organic carbon at Rocknest
  2. Research Articles

    1. Top of page
    2. Regular Articles
    3. Research Articles
    1. Chemical variations in Yellowknife Bay formation sedimentary rocks analyzed by ChemCam on board the Curiosity rover on Mars (pages 452–482)

      N. Mangold, O. Forni, G. Dromart, K. Stack, R. C. Wiens, O. Gasnault, D. Y. Sumner, M. Nachon, P.-Y. Meslin, R. B. Anderson, B. Barraclough, J. F. Bell III, G. Berger, D. L. Blaney, J. C. Bridges, F. Calef, B. Clark, S. M. Clegg, A. Cousin, L. Edgar, K. Edgett, B. Ehlmann, C. Fabre, M. Fisk, J. Grotzinger, S. Gupta, K. E. Herkenhoff, J. Hurowitz, J. R. Johnson, L. C. Kah, N. Lanza, J. Lasue, S. Le Mouélic, R. Léveillé, E. Lewin, M. Malin, S. McLennan, S. Maurice, N. Melikechi, A. Mezzacappa, R. Milliken, H. Newsom, A. Ollila, S. K. Rowland, V. Sautter, M. Schmidt, S. Schröder, C. d'Uston, D. Vaniman and R. Williams

      Version of Record online: 19 MAR 2015 | DOI: 10.1002/2014JE004681

      Key Points

      • Fluvial sandstones analyzed by ChemCam display subtle chemical variations
      • Combined analysis of chemistry and texture highlights the role of diagenesis
      • Distinct chemistry in upper layers suggests distinct setting and/or source
    2. You have full text access to this OnlineOpen article
      Diagenesis and clay mineral formation at Gale Crater, Mars (pages 1–19)

      J. C. Bridges, S. P. Schwenzer, R. Leveille, F. Westall, R. C. Wiens, N. Mangold, T. Bristow, P. Edwards and G. Berger

      Version of Record online: 18 JAN 2015 | DOI: 10.1002/2014JE004757

      Key Points

      • Thermochemical modelling constrains the secondary minerals in Gale Crater
      • Inhomogeneous dissolution of amorphous and olivine phases forms clay, magnetite
      • Formed by reaction of CO2-poor, oxidising brine with basaltic sedimentary rocks
    3. Chemistry of fracture-filling raised ridges in Yellowknife Bay, Gale Crater: Window into past aqueous activity and habitability on Mars (pages 2398–2415)

      Richard J. Léveillé, John Bridges, Roger C. Wiens, Nicolas Mangold, Agnes Cousin, Nina Lanza, Olivier Forni, Ann Ollila, John Grotzinger, Samuel Clegg, Kirsten Siebach, Gilles Berger, Ben Clark, Cécile Fabre, Ryan Anderson, Olivier Gasnault, Diana Blaney, Lauren Deflores, Laurie Leshin, Sylvestre Maurice and Horton Newsom

      Version of Record online: 26 NOV 2014 | DOI: 10.1002/2014JE004620

      Key Points

      • Raised ridges were investigated by the Curiosity rover in the Sheepbed mudstone
      • Their chemistry shows an enrichment in Mg
      • Composition reveals a cement stratigraphy
    4. You have full text access to this OnlineOpen article
      Mars Science Laboratory relative humidity observations: Initial results (pages 2132–2147)

      A.-M. Harri, M. Genzer, O. Kemppinen, J. Gomez-Elvira, R. Haberle, J. Polkko, H. Savijärvi, N. Rennó, J. A. Rodriguez-Manfredi, W. Schmidt, M. Richardson, T. Siili, M. Paton, M. De La Torre-Juarez, T. Mäkinen, C. Newman, S. Rafkin, M. Mischna, S. Merikallio, H. Haukka, J. Martin-Torres, M. Komu, M.-P. Zorzano, V. Peinado, L. Vazquez and R. Urqui

      Version of Record online: 26 SEP 2014 | DOI: 10.1002/2013JE004514

      Key Points

      • Atmospheric water mixing ratio at Gale crater varies from 30 to 140 ppm
      • MSL relative humidity observation provides good data
      • Highest detected relative humidity reading during first MSL 100 sols is RH75%
    5. Chemistry and texture of the rocks at Rocknest, Gale Crater: Evidence for sedimentary origin and diagenetic alteration (pages 2109–2131)

      D. L. Blaney, R. C. Wiens, S. Maurice, S. M. Clegg, R. B. Anderson, L. C. Kah, S. Le Mouélic, A. Ollila, N. Bridges, R. Tokar, G. Berger, J. C. Bridges, A. Cousin, B. Clark, M. D. Dyar, P. L. King, N. Lanza, N. Mangold, P.-Y. Meslin, H. Newsom, S. Schröder, S. Rowland, J. Johnson, L. Edgar, O. Gasnault, O. Forni, M. Schmidt, W. Goetz, K. Stack, D. Sumner, M. Fisk and M. B. Madsen

      Version of Record online: 10 SEP 2014 | DOI: 10.1002/2013JE004590

      Key Points

      • Rocks show morphologic diversity but similar chemistry
      • Rocknest rocks have high Fe and low Mg that sets them apart
      • They may be fine-grained sediments with an iron-rich cement
    6. Calcium sulfate veins characterized by ChemCam/Curiosity at Gale crater, Mars (pages 1991–2016)

      M. Nachon, S. M. Clegg, N. Mangold, S. Schröder, L. C. Kah, G. Dromart, A. Ollila, J. R. Johnson, D. Z. Oehler, J. C. Bridges, S. Le Mouélic, O. Forni, R.C. Wiens, R. B. Anderson, D. L. Blaney, J.F. Bell III, B. Clark, A. Cousin, M. D. Dyar, B. Ehlmann, C. Fabre, O. Gasnault, J. Grotzinger, J. Lasue, E. Lewin, R. Léveillé, S. McLennan, S. Maurice, P.-Y. Meslin, W. Rapin, M. Rice, S. W. Squyres, K. Stack, D. Y. Sumner, D. Vaniman and D. Wellington

      Version of Record online: 9 SEP 2014 | DOI: 10.1002/2013JE004588

      Key Points

      • Calcium sulfate is detected by ChemCam in veins crossing fine-grained sediments
      • Veins cross various sediments as a result of postdepositional diagenesis
      • Calcium sulfate veins formed through prolonged subsurface fluid circulation
    7. You have full text access to this OnlineOpen article
      Surface energy budget and thermal inertia at Gale Crater: Calculations from ground-based measurements (pages 1822–1838)

      G. M. Martínez, N. Rennó, E. Fischer, C. S. Borlina, B. Hallet, M. de la Torre Juárez, A. R. Vasavada, M. Ramos, V. Hamilton, J. Gomez-Elvira and R. M. Haberle

      Version of Record online: 8 AUG 2014 | DOI: 10.1002/2014JE004618

      Key Points

      • We calculate the thermal inertia and surface energy budget at Gale Crater
      • We use MSL REMS measurements for our calculations
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      Curiosity's rover environmental monitoring station: Overview of the first 100 sols (pages 1680–1688)

      Javier Gómez-Elvira, Carlos Armiens, Isaías Carrasco, Maria Genzer, Felipe Gómez, Robert Haberle, Victoria E. Hamilton, Ari-Matti Harri, Henrik Kahanpää, Osku Kemppinen, Alain Lepinette, Javier Martín Soler, Javier Martín-Torres, Jesús Martínez-Frías, Michael Mischna, Luis Mora, Sara Navarro, Claire Newman, Miguel A. de Pablo, Verónica Peinado, Jouni Polkko, Scot C. R. Rafkin, Miguel Ramos, Nilton O. Rennó, Mark Richardson, José A. Rodríguez-Manfredi, Julio J. Romeral Planelló, Eduardo Sebastián, Manuel de la Torre Juárez, Josefina Torres, Roser Urquí, Ashwin R. Vasavada, José Verdasca and María-Paz Zorzano

      Version of Record online: 25 JUL 2014 | DOI: 10.1002/2013JE004576

      Key Points

      • Introduction to the REMS results on MSL mission
      • Overiview of the sensor information
      • Overview of operational constraints
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      Diagenetic origin of nodules in the Sheepbed member, Yellowknife Bay formation, Gale crater, Mars (pages 1637–1664)

      K. M. Stack, J. P. Grotzinger, L. C. Kah, M. E. Schmidt, N. Mangold, K. S. Edgett, D. Y. Sumner, K. L. Siebach, M. Nachon, R. Lee, D. L. Blaney, L. P. Deflores, L. A. Edgar, A. G. Fairén, L. A. Leshin, S. Maurice, D. Z. Oehler, M. S. Rice and R. C. Wiens

      Version of Record online: 22 JUL 2014 | DOI: 10.1002/2014JE004617

      Key Points

      • Three types of nodules are observed in the Sheepbed mudstone
      • Sheepbed nodules are interpreted as early diagenetic concretions
      • Authigenic mineral precipitation was an important diagenetic process on Mars
    10. You have free access to this content
      Subaqueous shrinkage cracks in the Sheepbed mudstone: Implications for early fluid diagenesis, Gale crater, Mars (pages 1597–1613)

      K. L. Siebach, J. P. Grotzinger, L. C. Kah, K. M. Stack, M. Malin, R. Léveillé and D. Y. Sumner

      Version of Record online: 17 JUL 2014 | DOI: 10.1002/2014JE004623

      Key Points

      • Raised ridges are early diagenetic cement-filled cracks in Sheepbed mudstone
      • Cracks are subaqueous shrinkage cracks likely formed by subsurface gas
      • Isopachous cement fills indicate series of pore fluid chemistries
    11. You have free access to this content
      Water and chlorine content in the Martian soil along the first 1900 m of the Curiosity rover traverse as estimated by the DAN instrument (pages 1579–1596)

      I. G. Mitrofanov, M. L. Litvak, A. B. Sanin, R. D. Starr, D. I. Lisov, R. O. Kuzmin, A. Behar, W. V. Boynton, C. Hardgrove, K. Harshman, I. Jun, R. E. Milliken, M. A. Mischna, J. E. Moersch and C. G. Tate

      Version of Record online: 15 JUL 2014 | DOI: 10.1002/2013JE004553

      Key Points

      • First analysis of active neutron data from DAN instrument on board MSL rover
      • Estimations of water distribution along MSL rover traverse by DAN instrument
      • Estimations of chlorine abundance along MSL rover traverse by DAN instrument
    12. You have free access to this content
      Diurnal variations of energetic particle radiation at the surface of Mars as observed by the Mars Science Laboratory Radiation Assessment Detector (pages 1345–1358)

      Scot C. R. Rafkin, Cary Zeitlin, Bent Ehresmann, Don Hassler, Jingnan Guo, Jan Köhler, Robert Wimmer-Schweingruber, Javier Gomez-Elvira, Ari-Matti Harri, Henrik Kahanpää, David E. Brinza, Gerald Weigle, Stephan Böttcher, Eckart Böhm, Söenke Burmeister, Cesar Martin, Güenther Reitz, Francis A. Cucinotta, Myung-Hee Kim, David Grinspoon, Mark A. Bullock, Arik Posner and the MSL Science Team

      Version of Record online: 18 JUN 2014 | DOI: 10.1002/2013JE004525

      Key Points

      • Dose rate is inversely related to variations in atmospheric column mass
      • Neutral count rate is proportional to variations in atmospheric mass
      • Heavy ions are disproportionately affected by atmospheric shielding
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      The rock abrasion record at Gale Crater: Mars Science Laboratory results from Bradbury Landing to Rocknest (pages 1374–1389)

      N. T. Bridges, F. J. Calef, B. Hallet, K. E. Herkenhoff, N. L. Lanza, S. Le Mouélic, C. E. Newman, D. L. Blaney, M. A. de Pablo, G. A. Kocurek, Y. Langevin, K. W. Lewis, N. Mangold, S. Maurice, P.-Y. Meslin, P. Pinet, N. O. Renno, M. S. Rice, M. E. Richardson, V. Sautter, R. S. Sletten, R. C. Wiens and R. A. Yingst

      Version of Record online: 18 JUN 2014 | DOI: 10.1002/2013JE004579

      Key Points

      • Ventifacts in Gale Crater
      • May be formed by paleowind
      • Can see abrasion textures at range of scales
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      Terrain physical properties derived from orbital data and the first 360 sols of Mars Science Laboratory Curiosity rover observations in Gale Crater (pages 1322–1344)

      R. E. Arvidson, P. Bellutta, F. Calef, A. A. Fraeman, J. B. Garvin, O. Gasnault, J. A. Grant, J. P. Grotzinger, V. E. Hamilton, M. Heverly, K. A. Iagnemma, J. R. Johnson, N. Lanza, S. Le Mouélic, N. Mangold, D. W. Ming, M. Mehta, R. V. Morris, H. E. Newsom, N. Rennó, D. Rubin, J. Schieber, R. Sletten, N. T. Stein, F. Thuillier, A. R. Vasavada, J. Vizcaino and R. C. Wiens

      Version of Record online: 17 JUN 2014 | DOI: 10.1002/2013JE004605

      Key Points

      • Curiosity landing site consolidated bedrock covered by packed sand with clasts
      • Curiosity drill site is alluvial-lacustrine bedrock unit with little soil cover
      • Rover slip/skid dominated by terrain tilt and wheel-surface material shear modulus
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      Comparison of Martian surface ionizing radiation measurements from MSL-RAD with Badhwar-O'Neill 2011/HZETRN model calculations (pages 1311–1321)

      Myung-Hee Y. Kim, Francis A. Cucinotta, Hatem N. Nounu, Cary Zeitlin, Donald M. Hassler, Scot C. R. Rafkin, Robert F. Wimmer-Schweingruber, Bent Ehresmann, David E. Brinza, Stephan Böttcher, Eckart Böhm, Soenke Burmeister, Jingnan Guo, Jan Köhler, Cesar Martin, Guenther Reitz, Arik Posner, Javier Gómez-Elvira, Ari-Matti Harri and the MSL Science Team

      Version of Record online: 17 JUN 2014 | DOI: 10.1002/2013JE004549

      Key Points

      • Model simulation agrees with RAD measurements on Mars surface
      • Dose rate varies with heliospheric condition and atmospheric pressure
      • Neutron flux on Mars to be considered for radiobiology and risk assessments
    16. You have free access to this content
      Local variations of bulk hydrogen and chlorine-equivalent neutron absorption content measured at the contact between the Sheepbed and Gillespie Lake units in Yellowknife Bay, Gale Crater, using the DAN instrument onboard Curiosity (pages 1259–1275)

      M. L. Litvak, I. G. Mitrofanov, A. B. Sanin, D. Lisov, A. Behar, W. V. Boynton, L. Deflores, F. Fedosov, D. Golovin, C. Hardgrove, K. Harshman, I. Jun, A. S. Kozyrev, R. O. Kuzmin, A. Malakhov, R. Milliken, M. Mischna, J. Moersch, M. Mokrousov, S. Nikiforov, V. N. Shvetsov, K. Stack, R. Starr, C. Tate, V. I. Tret'yakov, A. Vostrukhin and the MSL Team

      Version of Record online: 13 JUN 2014 | DOI: 10.1002/2013JE004556

      Key Points

      • DAN special campaign in Yellowknife Bay
      • DAN local measurements of water and chlorine abundance
      • Correlation of DAN measurements and geological context
    17. You have free access to this content
      Overview of the Mars Science Laboratory mission: Bradbury Landing to Yellowknife Bay and beyond (pages 1134–1161)

      A. R. Vasavada, J. P. Grotzinger, R. E. Arvidson, F. J. Calef, J. A. Crisp, S. Gupta, J. Hurowitz, N. Mangold, S. Maurice, M. E. Schmidt, R. C. Wiens, R. M. E. Williams and R. A. Yingst

      Version of Record online: 5 JUN 2014 | DOI: 10.1002/2014JE004622

      Key Points

      • Curiosity has investigated the habitability of Gale Crater, Mars
      • Curiosity has explored environments with evidence of ancient fluvial activity
      • The unprecedented complexity of the rover challenged science operations
    18. You have free access to this content
      MSL-APXS titanium observation tray measurements: Laboratory experiments and results for the Rocknest fines at the Curiosity field site in Gale Crater, Mars (pages 1046–1060)

      Jeff A. Berger, Penelope L. King, Ralf Gellert, J. L. Campbell, Nicholas I. Boyd, Irina Pradler, Glynis M. Perrett, Kenneth S. Edgett, Scott J. V. VanBommel, Mariek E. Schmidt and Rebekka E. H. Lee

      Version of Record online: 13 MAY 2014 | DOI: 10.1002/2013JE004519

      Key Points

      • APXS response for samples on the MSL Ti science observation tray is investigated
      • Results from MSL-APXS measurement of scooped Rocknest drift sample are presented
      • Techniques for modeling and evaluating APXS-thin samples are presented
    19. You have free access to this content
      Observations and preliminary science results from the first 100 sols of MSL Rover Environmental Monitoring Station ground temperature sensor measurements at Gale Crater (pages 745–770)

      Victoria E. Hamilton, Ashwin R. Vasavada, Eduardo Sebastián, Manuel de la Torre Juárez, Miguel Ramos, Carlos Armiens, Raymond E. Arvidson, Isaías Carrasco, Philip R. Christensen, Miguel A. De Pablo, Walter Goetz, Javier Gómez-Elvira, Mark T. Lemmon, Morten B. Madsen, F. Javier Martín-Torres, Jesús Martínez-Frías, Antonio Molina, Marisa C. Palucis, Scot C. R. Rafkin, Mark I. Richardson, R. Aileen Yingst and María-Paz Zorzano

      Version of Record online: 10 APR 2014 | DOI: 10.1002/2013JE004520

      Key Points

      • Diurnal ground temperatures vary with location
      • Diurnal temperature curves are not well matched by a homogeneous thermal model
      • GTS data are consistent with a varied stratigraphy and thermophysical properties
    20. You have free access to this content
      The origin and evolution of the Peace Vallis fan system that drains to the Curiosity landing area, Gale Crater, Mars (pages 705–728)

      Marisa C. Palucis, William E. Dietrich, Alexander G. Hayes, Rebecca M. E. Williams, Sanjeev Gupta, Nicholas Mangold, Horton Newsom, Craig Hardgrove, Fred Calef III and Dawn Y. Sumner

      Version of Record online: 4 APR 2014 | DOI: 10.1002/2013JE004583

      Key Points

      • Distal end of Peace Vallis fan was near MSL landing
      • Sediment in the fan was derived from valley incision into colluvium
      • Fan morphology consistent with fluvial processes
    21. You have free access to this content
      Measurements of the neutron spectrum on the Martian surface with MSL/RAD (pages 594–603)

      J. Köhler, C. Zeitlin, B. Ehresmann, R. F. Wimmer-Schweingruber, D. M. Hassler, G. Reitz, D. E. Brinza, G. Weigle, J. Appel, S. Böttcher, E. Böhm, S. Burmeister, J. Guo, C. Martin, A. Posner, S. Rafkin and O. Kortmann

      Version of Record online: 19 MAR 2014 | DOI: 10.1002/2013JE004539

      Key Points

      • We calculated the Martian neutron and gamma spectra
      • We compare the results to Planetocosmics simulations
      • We calculate dose and dose equivalent rate for the neutron spectrum
    22. You have free access to this content
      Charged particle spectra obtained with the Mars Science Laboratory Radiation Assessment Detector (MSL/RAD) on the surface of Mars (pages 468–479)

      Bent Ehresmann, Cary Zeitlin, Donald M. Hassler, Robert F. Wimmer-Schweingruber, Eckart Böhm, Stephan Böttcher, David E. Brinza, Sönke Burmeister, Jingnan Guo, Jan Köhler, Cesar Martin, Arik Posner, Scot Rafkin and Günther Reitz

      Version of Record online: 6 MAR 2014 | DOI: 10.1002/2013JE004547

      Key Points

      • We present charged particle measurements on the Martian surface
      • Results are exemplarily compared to OLTARIS simulations
      • First-ever in-situ measurements can now to be used to validate transport models
    23. You have free access to this content
      Preliminary interpretation of the REMS pressure data from the first 100 sols of the MSL mission (pages 440–453)

      R. M. Haberle, J. Gómez-Elvira, M. de la Torre Juárez, A.-M. Harri, J. L. Hollingsworth, H. Kahanpää, M. A. Kahre, M. Lemmon, F. J. Martín-Torres, M. Mischna, J. E. Moores, C. Newman, S. C. R. Rafkin, N. Rennó, M. I. Richardson, J. A. Rodríguez-Manfredi, A. R. Vasavada, M.-P. Zorzano-Mier and REMS/MSL Science Teams

      Version of Record online: 6 MAR 2014 | DOI: 10.1002/2013JE004488

      Key Points

      • REMS pressure sensor is operating nominally
      • New phenomena have been discovered
      • Familiar phenomena have been detected
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      Sulfur-bearing phases detected by evolved gas analysis of the Rocknest aeolian deposit, Gale Crater, Mars (pages 373–393)

      Amy C. McAdam, Heather B. Franz, Brad Sutter, Paul D. Archer Jr., Caroline Freissinet, Jennifer L. Eigenbrode, Douglas W. Ming, Sushil K. Atreya, David L. Bish, David F. Blake, Hannah E. Bower, Anna Brunner, Arnaud Buch, Daniel P. Glavin, John P. Grotzinger, Paul R. Mahaffy, Scott M. McLennan, Richard V. Morris, Rafael Navarro-González, Elizabeth B. Rampe, Steven W. Squyres, Andrew Steele, Jennifer C. Stern, Dawn Y. Sumner and James J. Wray

      Version of Record online: 15 FEB 2014 | DOI: 10.1002/2013JE004518

      Key Points

      • Evidence for minor sulfides, sulfates/sulfites and S-bearing amorphous phases
      • S-bearing volatiles detected include SO2, H2S, OCS, and CS2
      • First detection of sulfur species from in situ evolved gas analysis
    25. You have free access to this content
      Trace element geochemistry (Li, Ba, Sr, and Rb) using Curiosity's ChemCam: Early results for Gale crater from Bradbury Landing Site to Rocknest (pages 255–285)

      Ann M. Ollila, Horton E. Newsom, Benton Clark III, Roger C. Wiens, Agnes Cousin, Jen G. Blank, Nicolas Mangold, Violaine Sautter, Sylvestre Maurice, Samuel M. Clegg, Olivier Gasnault, Olivier Forni, Robert Tokar, Eric Lewin, M. Darby Dyar, Jeremie Lasue, Ryan Anderson, Scott M. McLennan, John Bridges, Dave Vaniman, Nina Lanza, Cecile Fabre, Noureddine Melikechi, Glynis M. Perrett, John L. Campbell, Penelope L. King, Bruce Barraclough, Dorothea Delapp, Stephen Johnstone, Pierre-Yves Meslin, Anya Rosen-Gooding, Josh Williams and The MSL Science Team

      Version of Record online: 31 JAN 2014 | DOI: 10.1002/2013JE004517

      Key Points

      • Quantitative models for Li, Ba, Rb and Sr using ChemCam data are presented
      • Abundances for the first 100 sols in Gale crater are discussed
      • These results represent the first in situ measurements of Li and Ba on Mars
    26. You have free access to this content
      Abundances and implications of volatile-bearing species from evolved gas analysis of the Rocknest aeolian deposit, Gale Crater, Mars (pages 237–254)

      Paul Douglas Archer Jr., Heather B. Franz, Brad Sutter, Ricardo D. Arevalo Jr., Patrice Coll, Jennifer L. Eigenbrode, Daniel P. Glavin, John J. Jones, Laurie A. Leshin, Paul R. Mahaffy, Amy C. McAdam, Christopher P. McKay, Douglas W. Ming, Richard V. Morris, Rafael Navarro-González, Paul B. Niles, Alex Pavlov, Steven W. Squyres, Jennifer C. Stern, Andrew Steele and James J. Wray

      Version of Record online: 29 JAN 2014 | DOI: 10.1002/2013JE004493

      Key Points

      • Major volatiles detected by SAM were H2O, SO2, CO2, and O2
      • Minor volatiles include HCl, H2S, NH3, NO, and HCN
      • Calculating abundances from counts per second is explained
    27. You have full text access to this OnlineOpen article
      Pressure observations by the Curiosity rover: Initial results (pages 82–92)

      A.-M. Harri, M. Genzer, O. Kemppinen, H. Kahanpää, J. Gomez-Elvira, J. A. Rodriguez-Manfredi, R. Haberle, J. Polkko, W. Schmidt, H. Savijärvi, J. Kauhanen, E. Atlaskin, M. Richardson, T. Siili, M. Paton, M. de la Torre Juarez, C. Newman, S. Rafkin, M. T. Lemmon, M. Mischna, S. Merikallio, H. Haukka, J. Martin-Torres, M.-P. Zorzano, V. Peinado, R. Urqui, A. Lapinette, A. Scodary, T. Mäkinen, L. Vazquez, N. Rennó and the REMS/MSL Science Team

      Version of Record online: 22 JAN 2014 | DOI: 10.1002/2013JE004423

      Key Points

      • The performance and data quality of the REMS / MSL pressure observations.
      • MSL pressure observations exhibit local phenomena of the Gale crater area.
      • Small pressure oscillations possibly linked to gravity waves.
    28. You have free access to this content
      Geochemical diversity in first rocks examined by the Curiosity Rover in Gale Crater: Evidence for and significance of an alkali and volatile-rich igneous source (pages 64–81)

      M. E. Schmidt, J. L. Campbell, R. Gellert, G. M. Perrett, A. H. Treiman, D. L. Blaney, A. Olilla, F. J. Calef III, L. Edgar, B. E. Elliott, J. Grotzinger, J. Hurowitz, P. L. King, M. E. Minitti, V. Sautter, K. Stack, J. A. Berger, J. C. Bridges, B. L. Ehlmann, O. Forni, L. A. Leshin, K. W. Lewis, S. M. McLennan, D. W. Ming, H. Newsom, I. Pradler, S. W. Squyres, E. M. Stolper, L. Thompson, S. VanBommel and R. C. Wiens

      Version of Record online: 16 JAN 2014 | DOI: 10.1002/2013JE004481

      Key Points

      • Rocks at the MSL landing site are diverse and alkali- and volatile metal-rich.
      • Three of the first four rocks studied by APXS form a mixing line in element plots.
      • The alkali-rich nature reflects an igneous source affected by metasomatism.
    29. You have free access to this content
      Igneous mineralogy at Bradbury Rise: The first ChemCam campaign at Gale crater (pages 30–46)

      V. Sautter, C. Fabre, O. Forni, M. J. Toplis, A. Cousin, A. M. Ollila, P. Y. Meslin, S. Maurice, R. C. Wiens, D. Baratoux, N. Mangold, S. Le Mouélic, O. Gasnault, G. Berger, J. Lasue, R. A. Anderson, E. Lewin, M. Schmidt, D. Dyar, B. L. Ehlmann, J. Bridges, B. Clark and P. Pinet

      Version of Record online: 8 JAN 2014 | DOI: 10.1002/2013JE004472

      Key Points

      • The converging of LIBS data processing points to a mineralogical coherency
      • Mg-poor basaltic rocks correspond to fractionated evolved rocks
      • Feldspath-rich rocks, gravels, and conglomerates, with possible felsic pumice.

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