Search Results - "WÄNKE, H"

Chemistry of Rocks and Soils at Meridiani Planum from the Alpha Particle X-ray Spectrometer by Rieder, R., Gellert, R., Anderson, R. C., Brückner, J., Clark, B. C., Dreibus, G., Economou, T., Klingelhöfer, G., Lugmair, G. W., Ming, D. W., Squyres, S. W., d'Uston, C., Wänke, H., Yen, A., Zipfel, J.

“…The Alpha Particle X-ray Spectrometer on the Opportunity rover determined major and minor elements of soils and rocks in Meridiani Planum. Chemical…”
Get full text

Chemistry of Rocks and Soils in Gusev Crater from the Alpha Particle X-ray Spectrometer by Gellert, R., Rieder, R., Anderson, R. C., Brückner, J., Clark, B. C., Dreibus, G., Economou, T., Klingelhöfer, G., Lugmair, G. W., Ming, D. W., Squyres, S. W., d'Uston, C., Wänke, H., Yen, A., Zipfel, J.

“…The alpha particle x-ray spectrometer on the Spirit rover determined major and minor elements of soils and rocks in Gusev crater in order to unravel the…”
Get full text

Alpha Particle X-Ray Spectrometer (APXS): Results from Gusev crater and calibration report by Gellert, R, Rieder, R, Brueckner, J, Clark, B C, Dreibus, G, Klingelhoefer, G, Lugmair, G, Ming, D W, Waenke, H, Yen, A, Zipfel, J, Squyres, S W

“…The chemical composition of rocks and soils on Mars analyzed during the Mars Exploration Rover Spirit Mission was determined by X‐ray analyses with the Alpha…”
Get full text

Refined data of Alpha Proton X-ray Spectrometer analyses of soils and rocks at the Mars Pathfinder site: Implications for surface chemistry by Brueckner, J, Dreibus, G, Rieder, R, Waenke, H

“…An extensive recalibration of the Alpha Proton X‐ray Spectrometer (APXS) was performed to improve the data evaluation of the Mars Pathfinder (MPF) rock and…”
Get full text

Distribution of Hydrogen in the near Surface of Mars: Evidence for Subsurface Ice Deposits by Boynton, W. V., Feldman, W. C., Squyres, S. W., Prettyman, T. H., Brückner, J., Evans, L. G., Reedy, R. C., Starr, R., Arnold, J. R., Drake, D. M., Englert, P. A. J., Metzger, A. E., Mitrofanov, Igor, Trombka, J. I., d'Uston, C., Wänke, H., Gasnault, O., Hamara, D. K., Janes, D. M., Marcialis, R. L., Maurice, S., Mikheeva, I., Taylor, G. J., Tokar, R., Shinohara, C.

“…Using the Gamma-Ray Spectrometer on the Mars Odyssey, we have identified two regions near the poles that are enriched in hydrogen. The data indicate the…”
Get full text

The Chemical Composition of Martian Soil and Rocks Returned by the Mobile Alpha Proton X-ray Spectrometer: Preliminary Results from the X-ray Mode by Rieder, R., Economou, T., Wänke, H., Turkevich, A., Crisp, J., Brückner, J., Dreibus, G., McSween, H. Y.

“…The alpha proton x-ray spectrometer (APXS) on board the rover of the Mars Pathfinder mission measured the chemical composition of six soils and five rocks at…”
Get full text

The Spirit Rover's Athena Science Investigation at Gusev Crater, Mars by Squyres, S. W., Arvidson, R. E., Bell, J. F., Brückner, J., Cabrol, N. A., Calvin, W., Carr, M. H., Christensen, P. R., Clark, B. C., Crumpler, L., Des Marais, D. J., d'Uston, C., Economou, T., Farmer, J., Farrand, W., Folkner, W., Golombek, M., Gorevan, S., Grant, J. A., Greeley, R., Grotzinger, J., Haskin, L., Herkenhoff, K. E., Hviid, S., Johnson, J., Klingelhöfer, G., Knoll, A., Landis, G., Lemmon, M., Li, R., Madsen, M. B., Malin, M. C., McLennan, S. M., McSween, H. Y., Ming, D. W., Moersch, J., Morris, R. V., Parker, T., Rice, J. W., Richter, L., Rieder, R., Sims, M., Smith, M., Smith, P., Soderblom, L. A., Sullivan, R., Wänke, H., Wdowiak, T., Wolff, M., Yen, A.

“…The Mars Exploration Rover Spirit and its Athena science payload have been used to investigate a landing site in Gusev crater. Gusev is hypothesized to be the…”
Get full text

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…”
Get full text

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…”
Get full text

Chemical Composition of Rocks and Soils at the Pathfinder Site by Waenke, H, Brueckner, J, Dreibus, G, Rieder, R, Ryabchikov, I

“…As Viking Landers did not measure rock compositions, Pathfinder (PF) data are the first in this respect. This review gives no proof yet whether the PF rocks…”
Get full text

The Accretion, Composition and Early Differentiation of Mars by Halliday, AN, Waenke, H, Birck, J-L, Clayton, R N

“…The early development of Mars is of enormous interest, not just in its own right, but also because it provides unique insights into the earliest history of the…”
Get full text

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…”
Get full text

The Mars Odyssey Gamma-Ray Spectrometer Instrument Suite by Boynton, W V, Feldman, W C, Mitrofanov, I G, Evans, L G, Reedy, R C, Squyres, S W, Starr, R, Trombka, JI, d'Uston, C, Arnold, J R, Englert, PAJ, Metzger, A E, Waenke, H, Brueckner, J, Drake, D M, Shinohara, C, Fellows, C, Hamara, D K, Harshman, K, Kerry, K, Turner, C, Ward, M, Barthe, H, Fuller, K R, Storms, SA, Thornton, G W, Longmire, J L, Litvak, M L, Ton'chev, A K

“…The Mars Odyssey Gamma-Ray Spectrometer is a suite of three different instruments, a gamma subsystem (GS), a neutron spectrometer, and a high-energy neutron…”
Get full text

Chemical Composition and Accretion History of Terrestrial Planets by Wanke, H., Dreibus, G.

“…The high concentrations of moderately siderophile elements (Ni, Co, etc.) in the Earth's mantle and the similarity of their CI normalized abundances to those…”
Get full text

Chemical, multispectral, and textural constraints on the composition and origin of rocks at the Mars Pathfinder landing site by McSween, H. Y., Murchie, S. L., Crisp, J. A., Bridges, N. T., Anderson, R. C., Bell, J. F., Britt, D. T., Brückner, J., Dreibus, G., Economou, T., Ghosh, A., Golombek, M. P., Greenwood, J. P., Johnson, J. R., Moore, H. J., Morris, R. V., Parker, T. J., Rieder, R., Singer, R., Wänke, H.

“…Rocks at the Mars Pathfinder site are probably locally derived. Textures on rock surfaces may indicate volcanic, sedimentary, or impact‐generated rocks, but…”
Get full text

A deuterium-based labeling technique for the investigation of rooting depths, water uptake dynamics and unsaturated zone water transport in semiarid environments by Beyer, M., Koeniger, P., Gaj, M., Hamutoko, J.T., Wanke, H., Himmelsbach, T.

“…[Display omitted] •We present a minimum-invasive method for examining rooting depths.•The method allows the simultaneous study of plant water uptake and vapor…”
Get full text

Examination of deep root water uptake using anomalies of soil water stable isotopes, depth-controlled isotopic labeling and mixing models by Beyer, M., Hamutoko, J.T., Wanke, H., Gaj, M., Koeniger, P.

“…•Drought-induced anomalies of soil water isotopes used to identify of deep uptake.•Acacia erioloba obtains 37% (median) from groundwater.•Isotopic labeling…”
Get full text

Comment on: “Comparative geochemistry of basalts from the Moon, Earth, HED asteroid, and Mars: Implication for the origin of the Moon,” by A. Ruzicka, G. A. Snyder, and L. A. Taylor (2001) Geochim. Cosmochim. Acta, 65, 979–997 by Dreibus, G, Wänke, H

Get full text

Chemistry and Accretion History of Mars [and Discussion] by Wanke, Heinrich, Dreibus, Gerlind, Wright, I. P.

“…Using element correlations observed in SNC meteorites and general cosmochemical constraints, Wanke & Dreibus (1988) have estimated the bulk composition of…”
Get full text

Determination of the chemical composition of Martian soil and rocks: The alpha proton X ray spectrometer by Rieder, R., Wänke, H., Economou, T., Turkevich, A.

“…The alpha proton X ray spectrometer (APXS) for the Mars Pathfinder mission is designed to provide a complete and detailed analysis of chemical elements in…”
Get full text