Search Results - "KARUNATILLAKE, S"

Consolidated Chemical Provinces on Mars: Implications for Geologic Interpretations by Rani, A., Basu Sarbadhikari, A., Hood, D. R., Gasnault, O., Nambiar, S., Karunatillake, S.

“…Chemical provinces were defined on Mars a decade ago using orbital nuclear spectroscopy of K, Th, Fe, Si, Ca, Cl, and H2O. However, past multivariate analyses…”
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Sulfates hydrating bulk soil in the Martian low and middle latitudes by Karunatillake, S., Wray, J. J., Gasnault, O., McLennan, S. M., Rogers, A. D., Squyres, S. W., Boynton, W. V., Skok, J. R., Ojha, L., Olsen, N.

“…The evidence for sulfate‐bearing strata, across Late‐Noachian to Amazonian eons, suggests a central role for sulfates in acidity and salinity of Martian…”
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Concentration of H, Si, Cl, K, Fe, and Th in the low- and mid-latitude regions of Mars by Boynton, W. V., Taylor, G. J., Evans, L. G., Reedy, R. C., Starr, R., Janes, D. M., Kerry, K. E., Drake, D. M., Kim, K. J., Williams, R. M. S., Crombie, M. K., Dohm, J. M., Baker, V., Metzger, A. E., Karunatillake, S., Keller, J. M., Newsom, H. E., Arnold, J. R., Brückner, J., Englert, P. A. J., Gasnault, O., Sprague, A. L., Mitrofanov, I., Squyres, S. W., Trombka, J. I., d'Uston, L., Wänke, H., Hamara, D. K.

“…We report maps of the concentrations of H, Si, Cl, K, Fe, and Th as determined by the Gamma Ray Spectrometer (GRS) on board the 2001 Mars Odyssey Mission for…”
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Contrasting Regional Soil Alteration Across the Topographic Dichotomy of Mars by Hood, D. R., Karunatillake, S., Gasnault, O., Williams, A. J., Dutrow, B., Ojha, L., Kobs, S., Kim, K., Heldmann, J., Fralick, C.

“…Landscapes on either side of the martian topographic dichotomy bear distinct soil chemistry, but the processes associated with this distinction remain poorly…”
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Global distribution of near-surface hydrogen on Mars by Feldman, W. C., Prettyman, T. H., Maurice, S., Plaut, J. J., Bish, D. L., Vaniman, D. T., Mellon, M. T., Metzger, A. E., Squyres, S. W., Karunatillake, S., Boynton, W. V., Elphic, R. C., Funsten, H. O., Lawrence, D. J., Tokar, R. L.

“…Neutron data observed using the Neutron Spectrometer aboard 2001 Mars Odyssey provide a lower limit to the global inventory of Martian water‐equivalent…”
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The Role of Ice and Latitude‐Dependent Mantling on Boulder Distributions Across the Martian Northern Lowlands by Cohen‐Zada, A. L., Hood, D. R., Ewing, R. C., Karunatillake, S.

“…Boulders are ubiquitous on rocky planets and provide valuable information about planetary processes. The abundance, size, and distribution of boulders offer…”
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The Martian Boulder Automatic Recognition System, MBARS by Hood, Don R., Sholes, S. F., Karunatillake, S., Fassett, C. I., Ewing, R. C., Levy, J.

“…Boulder‐sized clasts are common on the surface of Mars, and many are sufficiently large to be resolved by the high resolution imaging science experiment…”
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Evaluation of a wheel-based seismic acquisition system for a planetary rover by Lorenzo, J. M, Bates, A, Patterson, D. A, Sun, C, Douglas, T. A, Karunatillake, S, Bremner, P. M, Zanetti, M. R, Haviland, H. F, Weber, R. C, Gemer, A. J

“…Prior to using in-situ planetary resources, efficient mapping of geochemical and physical characteristics of the near surface will be required. As part of an…”
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Equatorial and midlatitude distribution of chlorine measured by Mars Odyssey GRS by Keller, J. M., Boynton, W. V., Karunatillake, S., Baker, V. R., Dohm, J. M., Evans, L. G., Finch, M. J., Hahn, B. C., Hamara, D. K., Janes, D. M., Kerry, K. E., Newsom, H. E., Reedy, R. C., Sprague, A. L., Squyres, S. W., Starr, R. D., Taylor, G. J., Williams, R. M. S.

“…The 2001 Mars Odyssey Gamma Ray Spectrometer (GRS) has made the first measurement of the equatorial and midlatitude distribution of Cl at the near‐surface of…”
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Bulk composition and early differentiation of Mars by Taylor, G. Jeffrey, Boynton, W., Brückner, J., Wänke, H., Dreibus, G., Kerry, K., Keller, J., Reedy, R., Evans, L., Starr, R., Squyres, S., Karunatillake, S., Gasnault, O., Maurice, S., d'Uston, C., Englert, P., Dohm, J., Baker, V., Hamara, D., Janes, D., Sprague, A., Kim, K., Drake, D.

“…We report the concentrations of K, Th, and Fe on the Martian surface, as determined by the gamma ray spectrometer onboard the 2001 Mars Odyssey spacecraft. K…”
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Evidence of Regionally Distributed Tectono‐Volcanism in a Floor Fractured Crater of North‐Central Arabia Terra, Mars by Rani, A., Basu Sarbadhikari, A., Sinha, R. K., Karunatillake, S., Komatsu, G., Bates, A.

“…Arabia Terra features many tectonic structures, which have been correlated to episodes of incipient tectonics, massive impacts, and controls on fluvial…”
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Lunar polar rover science operations: Lessons learned and mission architecture implications derived from the Mojave Volatiles Prospector (MVP) terrestrial field campaign by Heldmann, Jennifer L., Colaprete, Anthony, Elphic, Richard C., Lim, Darlene, Deans, Matthew, Cook, Amanda, Roush, Ted, Skok, J.R., Button, Nicole E., Karunatillake, S., Stoker, Carol, Marquez, Jessica J., Shirley, Mark, Kobayashi, Linda, Lees, David, Bresina, John, Hunt, Rusty

“…•The distribution and characteristics of lunar polar volatiles are mostly unknown.•A lunar rover mission is required to map the spatial distribution of polar…”
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Composition and structure of the Martian surface at high southern latitudes from neutron spectroscopy by Prettyman, T. H., Feldman, W. C., Mellon, M. T., McKinney, G. W., Boynton, W. V., Karunatillake, S., Lawrence, D. J., Maurice, S., Metzger, A. E., Murphy, J. R., Squyres, S. W., Starr, R. D., Tokar, R. L.

“…Neutron spectroscopy data acquired by Mars Odyssey are analyzed to determine the abundance and depth of near‐surface water ice as a function of latitude in the…”
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Gamma-ray constraints on the chemical composition of the martian surface in the Tharsis region: A signature of partial melting of the mantle? by El Maarry, M.R., Gasnault, O., Toplis, M.J., Baratoux, D., Dohm, J.M., Newsom, H.E., Boynton, W.V., Karunatillake, S.

“…The Gamma-Ray Spectrometer (GRS) on board Mars Odyssey is the first instrument to provide quantitative estimates of the composition of the martian surface at…”
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Variations in K/Th on Mars by Taylor, G. Jeffrey, Stopar, J. D., Boynton, W. V., Karunatillake, S., Keller, J. M., Brückner, J., Wänke, H., Dreibus, G., Kerry, K. E., Reedy, R. C., Evans, L. G., Starr, R. D., Martel, L. M. V., Squyres, S. W., Gasnault, O., Maurice, S., d'Uston, C., Englert, P., Dohm, J. M., Baker, V. R., Hamara, D., Janes, D., Sprague, A. L., Kim, K. J., Drake, D. M., McLennan, S. M., Hahn, B. C.

“…K/Th determined by the Mars Odyssey Gamma Ray Spectrometer varies by a factor of 3 on Mars (3000 to 9000), but over 95% of the surface area has K/Th between…”
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CO2 frost cap thickness on Mars during northern winter and spring by Feldman, W. C., Prettyman, T. H., Boynton, W. V., Murphy, J. R., Squyres, S., Karunatillake, S., Maurice, S., Tokar, R. L., McKinney, G. W., Hamara, D. K., Kelly, N., Kerry, K.

“…The thickness of seasonal CO2 frost that covers the north pole of Mars during the winter and spring seasons is studied using gamma ray and neutron data…”
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Limits on polygonal organization of boulders in the Martian northern lowlands by Hood, D.R., Cohen-Zada, A.L., Ewing, R.C., Karunatillake, S.

“…Polygonal terrain on Mars can form via thermal contraction and subsequent fracturing of the permafrost layer and covers much of the surface poleward of ∼60°…”
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Protocol for the cultural adaptation of pulmonary rehabilitation and subsequent testing in a randomised controlled feasibility trial for adults with chronic obstructive pulmonary disease in Sri Lanka by Jayamaha, Akila R, Perera, Chamilya H, Orme, Mark W, Jones, Amy V, Wijayasiri, Upendra K D C, Amarasekara, Thamara D, Karunatillake, Ravini S, Fernando, Amitha, Seneviratne, Anthony L P, Barton, Andy, Jones, Rupert, Yusuf, Zainab K, Miah, Ruhme B, Malcolm, Dominic, Matheson, Jesse A, Free, Robert C, Manise, Adrian, Steiner, Michael C, Wimalasekera, Savithri W, Singh, Sally J

“…IntroductionInternational guidelines recommend pulmonary rehabilitation (PR) should be offered to adults living with chronic obstructive pulmonary disease…”
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Supervolcanic resurfacing in northwestern Arabia Terra, Mars by Bates, Augustus, Goossens, S., Lorenzo, J.M., Ojha, L., Hood, D.R., Karunatillake, S., Nawotniak, S. Kobs, Paladino, T.

“…An area roughly 9 × 105 km2 within northwest Arabia Terra contains several depressions interpreted to be supervolcanic calderas, contained within a chemical…”
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GRS evidence and the possibility of paleooceans on Mars by Dohm, James M., Baker, Victor R., Boynton, William V., Fairén, Alberto G., Ferris, Justin C., Finch, Michael, Furfaro, Roberto, Hare, Trent M., Janes, Daniel M., Kargel, Jeffrey S., Karunatillake, Suniti, Keller, John, Kerry, Kris, Kim, Kyeong J., Komatsu, Goro, Mahaney, William C., Schulze-Makuch, Dirk, Marinangeli, Lucia, Ori, Gian G., Ruiz, Javier, Wheelock, Shawn J.

“…The Gamma Ray Spectrometer (Mars Odyssey spacecraft) has revealed elemental distributions of potassium (K), thorium (Th), and iron (Fe) on Mars that require…”
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