Search Results - "McAdam, C A"

Early diagenesis at and below Vera Rubin ridge, Gale crater, Mars by Turner, S. M. R., Schwenzer, S. P., Bridges, J. C., Rampe, E. B., Bedford, C. C., Achilles, C. N., McAdam, A. C., Mangold, N., Hicks, L. J., Parnell, J., Fraeman, A. A., Reed, M. H., Osinski, Gordon

“…Data returned by NASA’s Mars Science Laboratory Curiosity rover showed evidence for abundant secondary materials, including Fe‐oxides, phyllosilicates, and an…”
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A Two‐Step K‐Ar Experiment on Mars: Dating the Diagenetic Formation of Jarosite from Amazonian Groundwaters by Martin, P. E., Farley, K. A., Baker, M. B., Malespin, C. A., Schwenzer, S. P., Cohen, B. A., Mahaffy, P. R., McAdam, A. C., Ming, D. W., Vasconcelos, P. M., Navarro‐González, R.

“…Following K‐Ar dating of a mudstone and a sandstone, a third sample has been dated by the Curiosity rover exploring Gale Crater. The Mojave 2 mudstone, which…”
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Indigenous and exogenous organics and surface–atmosphere cycling inferred from carbon and oxygen isotopes at Gale crater by Franz, H. B., Mahaffy, P. R., Webster, C. R., Flesch, G. J., Raaen, E., Freissinet, C., Atreya, S. K., House, C. H., McAdam, A. C., Knudson, C. A., Archer, P. D., Stern, J. C., Steele, A., Sutter, B., Eigenbrode, J. L., Glavin, D. P., Lewis, J. M. T., Malespin, C. A., Millan, M., Ming, D. W., Navarro-González, R., Summons, R. E.

“…Since landing at Gale crater, Mars, in August 2012, the Curiosity rover has searched for evidence of past habitability, such as organic compounds, which have…”
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In Situ Analysis of Opal in Gale Crater, Mars by Rapin, W., Chauviré, B., Gabriel, T. S. J., McAdam, A. C., Ehlmann, B. L., Hardgrove, C., Meslin, P.‐Y., Rondeau, B., Dehouck, E., Franz, H. B., Mangold, N., Chipera, S. J., Wiens, R. C., Frydenvang, J., Schröder, S.

“…Silica enrichments resulting in up to ~90 wt% SiO2 have been observed by the Curiosity rover's instruments in Gale crater, Mars, within the Murray and Stimson…”
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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.

“…Sedimentary rocks exposed in Gale crater on Mars contain extensive clay minerals. Bristow et al. analyzed drill samples collected by the Curiosity rover as it…”
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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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Evolved Gas Analyses of Sedimentary Rocks From the Glen Torridon Clay‐Bearing Unit, Gale Crater, Mars: Results From the Mars Science Laboratory Sample Analysis at Mars Instrument Suite by McAdam, A. C., Sutter, B., Archer, P. D., Franz, H. B., Wong, G. M., Lewis, J. M. T., Clark, J. V., Millan, M., Williams, A. J., Eigenbrode, J. L., Knudson, C. A., Freissinet, C., Glavin, D. P., Stern, J. C., Navarro‐González, R., Achilles, C. N., Ming, D. W., Morris, R. V., Bristow, T. F., Rampe, E. B., Thorpe, M. T., House, C. H., Andrejkovičová, S., Bryk, A. B., Fox, V. K., Johnson, S. S., Mahaffy, P. R., Malespin, C. A.

“…Evolved gas analysis (EGA) data from the Sample Analysis at Mars (SAM) instrument suite indicated Fe‐rich smectite, carbonate, oxidized organics, Fe/Mg…”
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Evolved Gas Analyses of Sedimentary Rocks and Eolian Sediment in Gale Crater, Mars: Results of the Curiosity Rover's Sample Analysis at Mars Instrument from Yellowknife Bay to the Namib Dune by Sutter, B., McAdam, A. C., Mahaffy, P. R., Ming, D. W., Edgett, K. S., Rampe, E. B., Eigenbrode, J. L., Franz, H. B., Freissinet, C., Grotzinger, J. P., Steele, A., House, C. H., Archer, P. D., Malespin, C. A., Navarro-González, R., Stern, J. C., Bell, J. F., Calef, F. J., Gellert, R., Glavin, D. P., Thompson, L. M., Yen, A. S.

“…The sample analysis at Mars instrument evolved gas analyzer (SAM-EGA) has detected evolved water, H2, SO2, H2S, NO, CO2, CO, O2, and HCl from two eolian…”
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Metagenome-Assembled Genome of a Putative Chemoheterotroph from Volcanic Terrain in Hawaii by Gadson, O, Bevilacqua, J G, Fishman, C B, Hahn, A S, McAdam, A C, Bleacher, J, Johnson, S S

“…Here, we present the draft genome for a new putative species, Gaiellasilicea maunaloa, most closely related to Gaiella occulta, within the phylum This group…”
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Basaltic Lava Tube Hosts a Putative Novel Genus in the Family Solirubrobacteraceae by Fishman, C. B., Bevilacqua, J. G., Gadson, O., Hahn, A. S., McAdam, A. C., Bleacher, J., Johnson, S. S.

“…We report the draft genome sequence of a putative new genus and species, Siliceabacter maunaloa, in the family Solirubrobacteraceae. The members of this family…”
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Sedimentary Organics in Glen Torridon, Gale Crater, Mars: Results From the SAM Instrument Suite and Supporting Laboratory Analyses by Millan, M., Williams, A. J., McAdam, A. C., Eigenbrode, J. L., Steele, A., Freissinet, C., Glavin, D. P., Szopa, C., Buch, A., Summons, R. E., Lewis, J. M. T., Wong, G. M., House, C. H., Sutter, B., McIntosh, O., Bryk, A. B., Franz, H. B., Pozarycki, C., Stern, J. C., Navarro‐Gonzalez, R., Archer, D. P., Fox, V., Bennett, K., Teinturier, S., Malespin, C., Johnson, S. S., Mahaffy, P. R.

“…The Sample Analysis at Mars (SAM) suite instrument on board NASA's Curiosity rover has characterized the inorganic and organic chemical composition of seven…”
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Extreme Niche Partitioning and Microbial Dark Matter in a Mauna Loa Lava Tube by Fishman, C. B., Bevilacqua, J. G., Hahn, A. S., Morgan‐Lang, C., Wagner, N., Gadson, O., McAdam, A. C., Bleacher, J., Achilles, C., Knudson, C., Millan, M. M., Bower, D. M., Musilova, M., Johnson, S. S.

“…Lava tubes are key targets in the search for life on Mars. Their basaltic walls provide protection from radiation and changing environmental conditions, which…”
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Pyrolysis of Oxalate, Acetate, and Perchlorate Mixtures and the Implications for Organic Salts on Mars by Lewis, J. M. T., Eigenbrode, J. L., Wong, G. M., McAdam, A. C., Archer, P. D., Sutter, B., Millan, M., Williams, R. H., Guzman, M., Das, A., Rampe, E. B., Achilles, C. N., Franz, H. B., Andrejkovičová, S., Knudson, C. A., Mahaffy, P. R.

“…Organic salts, such as Fe, Ca, and Mg oxalates and acetates, may be widespread radiolysis and oxidation products of organic matter in Martian surface…”
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Diagnostic biosignature transformation under simulated martian radiation in organic-rich sedimentary rocks by Roussel, A., McAdam, A. C., Graham, H. V., Pavlov, A. A., Achilles, C. N., Knudson, C. A., Steele, A., Foustoukos, D. I., Johnson, S. S.

“…As we look for traces of ancient life on Mars, we need to consider the impact of ionizing radiation in the biosignature preservation process. Here, we…”
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Life Underground: Investigating Microbial Communities and Their Biomarkers in Mars‐Analog Lava Tubes at Craters of the Moon National Monument and Preserve by Weng, M. M., Zaikova, E., Millan, M., Williams, A. J., McAdam, A. C., Knudson, C. A., Fuqua, S. R., Wagner, N. Y., Craft, K., Kobs Nawotniak, S., Shields, A., Bevilacqua, J., Bai, Y., Hughes, S. S., Garry, W. B., Heldmann, J. L., Lim, D. S. S., Buckner, D., Gant, P., Johnson, S. S.

“…Craters of the Moon National Monument and Preserve (CotM) is a strong terrestrial analog for lava tube formations on Mars. The commonality of its basalt…”
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Constraining Alteration Processes Along the Siccar Point Group Unconformity, Gale Crater, Mars: Results From the Sample Analysis at Mars Instrument by Sutter, B., McAdam, A. C., Wong, G. M., Clark, J. V., Archer, P. D., Franz, H. B., Gasda, P. J., Ming, D. W., Yen, A., Lewis, J. M. T., Schwenzer, S. P., Turner, S. M. R., Rampe, E. B., Eigenbrode, J. L., Stern, J. C., Thompson, L. M., Dehouck, E., Bedford, C., Banham, S., Bryk, A. B., O’Connell‐Cooper, C., House, C. S., Millan, M., Freissinet, C., Navarro‐Gonzalez, R., Mahaffy, P. R., Malespin, C. A.

“…Results from the Sample Analysis at Mars‐evolved gas analyzer on board the Mars Science Laboratory Curiosity rover constrained the alteration history and…”
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Magnesium Sulfate as a Key Mineral for the Detection of Organic Molecules on Mars Using Pyrolysis by Francois, P., Szopa, C., Buch, A., Coll, P., McAdam, A. C., Mahaffy, P. R., Freissinet, C., Glavin, D. P., Navarro-Gonzalez, R., Cabane, M.

“…Pyrolysis of soil or rock samples is the preferred preparation technique used on Mars to search for organic molecules up today. During pyrolysis, oxichlorines…”
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The Incorporation of Field Portable Instrumentation Into Human Planetary Surface Exploration by Young, K. E., Bleacher, J. E., Rogers, A. D., Schmitt, H. H., McAdam, A. C., Garry, W. B., Whelley, P. L., Scheidt, S. P., Ito, G., Knudson, C. A., Graff, T. G., Bleacher, L. V., Whelley, N., Evans, C. A., Hurtado, J. M., Glotch, T. D.

“…Field portable instrumentation, such as in situ geochemical analyzers or broader field of view instruments like multispectral imagers or other imaging…”
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Spectroscopic comparisons of two different terrestrial basaltic environments: Exploring the correlation between nitrogen compounds and biomolecular signatures by Bower, D.M., McAdam, A.C., Yang, C.S.C., Millan, M., Arevalo, R., Achilles, C., Knudson, C., Hewagama, T., Nixon, C.A., Fishman, C.B., Johnson, S.S., Bleacher, Jacob, Whelley, Patrick

“…Life detection in the solar system relies on the unambiguous identification of signatures of life and habitability. Organic molecules are essential to life as…”
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Psychosis and substance abuse: cause, effect or coincidence? by Lawrie, S M, Hutchison, J K, Sweeney, S R, Fernando, M R, McAdam, C A, Monsour, M R, Campbell, T J, MacLeod, C M

“…An association between substance abuse and major psychiatric illness is increasingly well recognised, but most studies have been conducted in the USA and have…”
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