Search Results - "Grotzinger, J P"

Paleoclimate of Mars as captured by the stratigraphic record in Gale Crater by Milliken, R. E., Grotzinger, J. P., Thomson, B. J.

“…A kilometers‐thick sedimentary sequence in Gale Crater exhibits stratigraphic changes in lithology that are consistent with transitions in aqueous and climatic…”
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Oxidation of the Ediacaran Ocean by Summons, R. E, Fike, D. A, Grotzinger, J. P, Pratt, L. M

“…Oxygenation of the Earth's surface is increasingly thought to have occurred in two steps. The first step, which occurred ∼2,300 million years (Myr) ago,…”
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Redox stratification of an ancient lake in Gale crater, Mars by Hurowitz, J. A., Grotzinger, J. P., Fischer, W. W., McLennan, S. M., Milliken, R. E., Stein, N., Vasavada, A. R., Blake, D. F., Dehouck, E., Eigenbrode, J. L., Fairén, A. G., Frydenvang, J., Gellert, R., Grant, J. A., Gupta, S., Herkenhoff, K. E., Ming, D. W., Rampe, E. B., Schmidt, M. E., Siebach, K. L., Stack-Morgan, K., Sumner, D. Y., Wiens, R. C.

“…In 2012, NASA's Curiosity rover landed on Mars to assess its potential as a habitat for past life and investigate the paleoclimate record preserved by…”
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Brine-driven destruction of clay minerals in Gale crater, Mars by Bristow, T. F., Grotzinger, J. P., Rampe, E. B., Cuadros, J., Chipera, S. J., Downs, G. W., Fedo, C. M., Frydenvang, J., McAdam, A. C., Morris, R. V., Achilles, C. N., Blake, D. F., Castle, N., Craig, P., Des Marais, D. J., Downs, R. T., Hazen, R. M., Ming, D. W., Morrison, S. M., Thorpe, M. T., Treiman, A. H., Tu, V., Vaniman, D. T., Yen, A. S., Gellert, R., Mahaffy, P. R., Wiens, R. C., Bryk, A. B., Bennett, K. A., Fox, V. K., Millken, R. E., Fraeman, A. A., Vasavada, A. R.

“…Modified clay minerals on Mars Sedimentary rocks exposed in Gale crater on Mars contain extensive clay minerals. Bristow et al. analyzed drill samples…”
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Large wind ripples on Mars: A record of atmospheric evolution by Lapotre, M. G. A., Ewing, R. C., Lamb, M. P., Fischer, W. W., Grotzinger, J. P., Rubin, D. M., Lewis, K. W., Ballard, M. J., Day, M., Gupta, S., Banham, S. G., Bridges, N. T., Des Marais, D. J., Fraeman, A. A., Grant, J. A., Herkenhoff, K. E., Ming, D. W., Mischna, M. A., Rice, M. S., Sumner, D. A., Vasavada, A. R., Yingst, R. A.

“…Wind blowing over sand on Earth produces decimeter-wavelength ripples and hundred-meter— to kilometer-wavelength dunes: bedforms of two distinct size modes…”
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Overview of the Mars Science Laboratory mission: Bradbury Landing to Yellowknife Bay and beyond by Vasavada, A. R., Grotzinger, J. P., Arvidson, R. E., Calef, F. J., Crisp, J. A., Gupta, S., Hurowitz, J., Mangold, N., Maurice, S., Schmidt, M. E., Wiens, R. C., Williams, R. M. E., Yingst, R. A.

“…The Mars Science Laboratory mission reached Bradbury Landing in August 2012. In its first 500 sols, the rover Curiosity was commissioned and began its…”
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Sand Mineralogy Within the Bagnold Dunes, Gale Crater, as Observed In Situ and From Orbit by Rampe, E. B., Lapotre, M. G. A., Bristow, T. F., Arvidson, R. E., Morris, R. V., Achilles, C. N., Weitz, C., Blake, D. F., Ming, D. W., Morrison, S. M., Vaniman, D. T., Chipera, S. J., Downs, R. T., Grotzinger, J. P., Hazen, R. M., Peretyazhko, T. S., Sutter, B., Tu, V., Yen, A. S., Horgan, B., Castle, N., Craig, P. I., Des Marais, D. J., Farmer, J., Gellert, R., McAdam, A. C., Morookian, J. M., Sarrazin, P. C., Treiman, A. H.

“…Curiosity investigated active eolian sands near linear dunes during Phase 2 of the Bagnold Dunes campaign in Gale crater, Mars. Ogunquit Beach, a sample…”
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Subaqueous shrinkage cracks in the Sheepbed mudstone: Implications for early fluid diagenesis, Gale crater, Mars by Siebach, K. L., Grotzinger, J. P., Kah, L. C., Stack, K. M., Malin, M., Léveillé, R., Sumner, D. Y.

“…The Sheepbed mudstone, Yellowknife Bay formation, Gale crater, represents an ancient lakebed now exhumed and exposed on the Martian surface. The mudstone has…”
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The stratigraphy and evolution of lower Mount Sharp from spectral, morphological, and thermophysical orbital data sets by Fraeman, A. A., Ehlmann, B. L., Arvidson, R. E., Edwards, C. S., Grotzinger, J. P., Milliken, R. E., Quinn, D. P., Rice, M. S.

“…We have developed a refined geologic map and stratigraphy for lower Mount Sharp using coordinated analyses of new spectral, thermophysical, and morphologic…”
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Diagenetic origin of nodules in the Sheepbed member, Yellowknife Bay formation, Gale crater, Mars by Stack, K. M., Grotzinger, J. P., Kah, L. C., Schmidt, M. E., Mangold, N., Edgett, K. S., Sumner, D. Y., Siebach, K. L., Nachon, M., Lee, R., Blaney, D. L., Deflores, L. P., Edgar, L. A., Fairén, A. G., Leshin, L. A., Maurice, S., Oehler, D. Z., Rice, M. S., Wiens, R. C.

“…The Sheepbed member of the Yellowknife Bay formation in Gale crater contains millimeter‐scale nodules that represent an array of morphologies unlike those…”
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Evidence for anoxia at the Ediacaran-Cambrian boundary; the record of redox-sensitive trace elements and rare earth elements in Oman by Schröder, S, Grotzinger, J. P

“…The Ediacaran-Cambrian boundary in Oman is characterized by a globally correlative negative δ13Ccarb excursion in platform carbonate rocks, and deposition of…”
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Bed thickness distributions on Mars: An orbital perspective by Stack, K. M., Grotzinger, J. P., Milliken, R. E.

“…Studies on Earth show that sedimentary bed thickness and bed thickness distributions record information about the processes controlling sediment deposition…”
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Two Years at Meridiani Planum: Results from the Opportunity Rover by Squyres, S. W., Knoll, A. H., Arvidson, R. E., Clark, B. C., Grotzinger, J. P., Jolliff, B. L., McLennan, S. M., Tosca, N., Bell, J. F., Calvin, W. M., Farrand, W. H., Glotch, T. D., Golombek, M. P., Herkenhoff, K. E., Johnson, J. R., Klingelhöfer, G., McSween, H. Y., Yen, A. S.

“…The Mars Exploration Rover Opportunity has spent more than 2 years exploring Meridiani Planum, traveling ~8 kilometers and detecting features that reveal…”
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In Situ Evidence for an Ancient Aqueous Environment at Meridiani Planum, Mars by Squyres, S. W., Grotzinger, J. P., Arvidson, R. E., Bell, J. F., Calvin, W., Christensen, P. R., Clark, B. C., Crisp, J. A., Farrand, W. H., Herkenhoff, K. E., Johnson, J. R., Klingelhöfer, G., Knoll, A. H., McLennan, S. M., McSween, H. Y., Morris, R. V., Rice, J. W., Rieder, R., Soderblom, L. A.

“…Sedimentary rocks at Eagle crater in Meridiani Planum are composed of fine-grained siliciclastic materials derived from weathering of basaltic rocks, sulfate…”
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Stratigraphy and sedimentology of a dry to wet eolian depositional system, Burns formation, Meridiani Planum, Mars by Grotzinger, J.P., Arvidson, R.E., Bell, J.F., Calvin, W., Clark, B.C., Fike, D.A., Golombek, M., Greeley, R., Haldemann, A., Herkenhoff, K.E., Jolliff, B.L., Knoll, A.H., Malin, M., McLennan, S.M., Parker, T., Soderblom, L., Sohl-Dickstein, J.N., Squyres, S.W., Tosca, N.J., Watters, W.A.

“…Outcrop exposures of sedimentary rocks at the Opportunity landing site (Meridiani Planum) form a set of genetically related strata defined here informally as…”
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Comparative Earth History and Late Permian Mass Extinction by Knoll, A. H., Bambach, R. K., Canfield, D. E., Grotzinger, J. P.

“…The repeated association during the late Neoproterozoic Era of large carbon-isotopic excursions, continental glaciation, and stratigraphically anomalous…”
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Geochemical modeling of evaporation processes on Mars: Insight from the sedimentary record at Meridiani Planum by Tosca, N.J., McLennan, S.M., Clark, B.C., Grotzinger, J.P., Hurowitz, J.A., Knoll, A.H., Schröder, C., Squyres, S.W.

“…New data returned from the Mars Exploration Rover (MER) mission have revealed abundant evaporites in the sedimentary record at Meridiani Planum. A working…”
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An abiotic model for stromatolite morphogenesis by Grotzinger, John P, Rothman, Daniel H

“…A morphological characterization of ancient stromatolites that have growth surfaces with self-affine fractal geometry is presented. A purely abiotic dynamical…”
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Carbonate‐Associated Phosphate (CAP) Indicates Elevated Phosphate Availability in Neoarchean Shallow Marine Environments by Ingalls, M., Grotzinger, J. P., Present, T., Rasmussen, B., Fischer, W. W.

“…Phosphorus is essential for cell biology, yet scarce in modern marine environments wherein free phosphate is consumed by life or titrated by calcium to form…”
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Sulfate-rich eolian and wet interdune deposits, Erebus Crater, Meridiani Planum, Mars by Metz, Joannah M, Grotzinger, John P, Rubin, David M, Lewis, Kevin W, Squyres, Steven W, Bell, III

“…This study investigates three bedrock exposures at Erebus crater, an approximately 300 m diameter crater approximately 4 km south of Endurance crater on Mars…”
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