Search Results - "Grotzinger, P"

Habitability, Taphonomy, and the Search for Organic Carbon on Mars by Grotzinger, John P.

Get full text

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…”
Get full text

The origin of life as a planetary phenomenon by Sasselov, Dimitar D, Grotzinger, John P, Sutherland, John D

“…We advocate an integrative approach between laboratory experiments in prebiotic chemistry and geologic, geochemical, and astrophysical observations to help…”
Get full text

Enigmatic origin of the largest-known carbon isotope excursion in Earth's history by Grotzinger, John P., Fike, David A., Fischer, Woodward W.

“…Carbonate rocks of Middle Ediacaran age record the largest excursion in carbon isotopic compositions in Earth history. A review of the data offers two…”
Get full text

Analysis of surface materials by the Curiosity Mars rover by Grotzinger, John P

Get full text

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…”
Get full text

The Sedimentary Cycle on Early Mars by McLennan, Scott M, Grotzinger, John P, Hurowitz, Joel A, Tosca, Nicholas J

“…Two decades of intensive research have demonstrated that early Mars ( 2 Gyr) had an active sedimentary cycle, including well-preserved stratigraphic records,…”
Get full text

Organic Matter Preserved in 3-Billion-Year-Old Mudstones at Gale Crater, Mars by Eigenbrode, Jennifer L., Summons, Roger E., Archer, Paul D., Jr, Mahaffy, Paul R., Conrad, Pamela G., Hurowitz, Joel A., Grotzinger, John P., Gupta, Sanjeev, Ming, Doug W., Sumner, Dawn Y., Szopa, Cyril, Malespin, Charles, Steele, Andrew, Buch, Arnaud, Coll, Patrice, Freissinet, Caroline, Millan, Maeva, Navarro-González, Rafael, Sutter, Brad, McAdam, Amy C., Franz, Heather, Glavin, Daniel P.

“…Establishing the presence and state of organic matter, including its possible biosignatures, in martian materials has been an elusive quest, despite limited…”
Get full text

Reconstructing the transport history of pebbles on Mars by Szabó, Tímea, Domokos, Gábor, Grotzinger, John P., Jerolmack, Douglas J.

“…The discovery of remarkably rounded pebbles by the rover Curiosity, within an exhumed alluvial fan complex in Gale Crater, presents some of the most compelling…”
Get full text

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,…”
Get full text

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…”
Get full text

The timing of alluvial activity in Gale crater, Mars by Grant, John A., Wilson, Sharon A., Mangold, Nicolas, Calef III, Fred, Grotzinger, John P.

“…The Curiosity rover's discovery of rocks preserving evidence of past habitable conditions in Gale crater highlights the importance of constraining the timing…”
Get full text

Mars Science Laboratory Mission and Science Investigation by Grotzinger, John P., Crisp, Joy, Vasavada, Ashwin R., Anderson, Robert C., Baker, Charles J., Barry, Robert, Blake, David F., Conrad, Pamela, Edgett, Kenneth S., Ferdowski, Bobak, Gellert, Ralf, Gilbert, John B., Golombek, Matt, Gómez-Elvira, Javier, Hassler, Donald M., Jandura, Louise, Litvak, Maxim, Mahaffy, Paul, Maki, Justin, Meyer, Michael, Malin, Michael C., Mitrofanov, Igor, Simmonds, John J., Vaniman, David, Welch, Richard V., Wiens, Roger C.

“…Scheduled to land in August of 2012, the Mars Science Laboratory (MSL) Mission was initiated to explore the habitability of Mars. This includes both modern…”
Get full text

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…”
Get full text

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…”
Get full text

A hydrothermal origin for isotopically anomalous cap dolostone cements from south China by Bristow, Thomas F., Bonifacie, Magali, Derkowski, Arkadiusz, Eiler, John M., Grotzinger, John P.

“…No way out for snowball Earth Earth's emergence from perhaps its most severe ice age, the Marinoan 'snowball' glaciation around 635 million years ago, is…”
Get full text

Fossil steroids record the appearance of Demospongiae during the Cryogenian period by Love, Gordon D., Grosjean, Emmanuelle, Stalvies, Charlotte, Fike, David A., Grotzinger, John P., Bradley, Alexander S., Kelly, Amy E., Bhatia, Maya, Meredith, William, Snape, Colin E., Bowring, Samuel A., Condon, Daniel J., Summons, Roger E.

“…The earliest metazoans Chemical fossils discovered in sedimentary rocks in Oman provide the earliest evidence for animal life so far discovered. The fossil…”
Get full text

Chemistry of diagenetic features analyzed by ChemCam at Pahrump Hills, Gale crater, Mars by Nachon, M., Mangold, N., Forni, O., Kah, L.C., Cousin, A., Wiens, R.C., Anderson, R., Blaney, D., Blank, J.G., Calef, F., Clegg, S.M., Fabre, C., Fisk, M.R., Gasnault, O., Grotzinger, J.P., Kronyak, R., Lanza, N.L., Lasue, J., Deit, L. Le, Mouélic, S. Le, Maurice, S., Meslin, P.-Y., Oehler, D.Z., Payré, V., Rapin, W., Schröder, S., Stack, K., Sumner, D.

“…•ChemCam/Curiosity provides elemental composition at Gale crater’ lower Mt Sharp.•Diagenetic features in fine-grained sediments show diverse textures and…”
Get full text

Sulfur isotopes of organic matter preserved in 3.45-billion-year-old stromatolites reveal microbial metabolism by Bontognali, Tomaso R. R, Sessions, Alex L, Allwood, Abigail C, Fischer, Woodward W, Grotzinger, John P, Summons, Roger E, Eiler, John M

“…The 3.45-billion-year-old Strelley Pool Formation of Western Australia preserves stromatolites that are considered among the oldest evidence for life on Earth…”
Get full text

Controls on development and diversity of Early Archean stromatolites by Allwood, Abigail C, Grotzinger, John P, Knoll, Andrew H, Burch, Ian W, Anderson, Mark S, Coleman, Max L, Kanik, Isik

“…The [almost equal to]3,450-million-year-old Strelley Pool Formation in Western Australia contains a reef-like assembly of laminated sedimentary accretion…”
Get full text