Search Results - "Crumpler, L. S."

Erosion rates at the Mars Exploration Rover landing sites and long-term climate change on Mars by Golombek, M. P., Grant, J. A., Crumpler, L. S., Greeley, R., Arvidson, R. E., Bell III, J. F., Weitz, C. M., Sullivan, R., Christensen, P. R., Soderblom, L. A., Squyres, S. W.

“…Erosion rates derived from the Gusev cratered plains and the erosion of weak sulfates by saltating sand at Meridiani Planum are so slow that they argue that…”
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Iron mineralogy and aqueous alteration from Husband Hill through Home Plate at Gusev Crater, Mars: Results from the Mössbauer instrument on the Spirit Mars Exploration Rover by Morris, R. V., Klingelhöfer, G., Schröder, C., Fleischer, I., Ming, D. W., Yen, A. S., Gellert, R., Arvidson, R. E., Rodionov, D. S., Crumpler, L. S., Clark, B. C., Cohen, B. A., McCoy, T. J., Mittlefehldt, D. W., Schmidt, M. E., de Souza Jr, P. A., Squyres, S. W.

“…Spirit's Mössbauer (MB) instrument determined the Fe mineralogy and oxidation state of 71 rocks and 43 soils during its exploration of the Gusev plains and the…”
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Geology of the Gusev cratered plains from the Spirit rover transverse by Golombek, M. P., Crumpler, L. S., Grant, J. A., Greeley, R., Cabrol, N. A., Parker, T. J., Rice Jr, J. W., Ward, J. G., Arvidson, R. E., Moersch, J. E., Fergason, R. L., Christensen, P. R., Castaño, A., Castaño, R., Haldemann, A. F. C., Li, R., Bell III, J. F., Squyres, S. W.

“…The cratered plains of Gusev traversed by Spirit are generally low‐relief rocky plains dominated by impact and eolian processes. Ubiquitous shallow,…”
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Assessment of Mars Exploration Rover landing site predictions by Golombek, M. P, Arvidson, R. E, Bell, J. F, Christensen, P. R, Crisp, J. A, Crumpler, L. S, Ehlmann, B. L, Fergason, R. L, Grant, J. A, Greeley, R, Haldemann, A. F. C, Kass, D. M, Parker, T. J, Schofield, J. T, Squyres, S. W, Zurek, R. W

“…Comprehensive analyses of remote sensing data during the three-year effort to select the Mars Exploration Rover landing sites at Gusev crater and at Meridiani…”
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Crater gradation in Gusev crater and Meridiani Planum, Mars by Grant, J. A., Arvidson, R. E., Crumpler, L. S., Golombek, M. P., Hahn, B., Haldemann, A. F. C., Li, R., Soderblom, L. A., Squyres, S. W., Wright, S. P., Watters, W. A.

“…The Mars Exploration Rovers investigated numerous craters in Gusev crater and Meridiani Planum during the first ∼400 sols of their missions. Craters vary in…”
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Structure, stratigraphy, and origin of Husband Hill, Columbia Hills, Gusev Crater, Mars by McCoy, T. J., Sims, M., Schmidt, M. E., Edwards, L., Tornabene, L. L., Crumpler, L. S., Cohen, B. A., Soderblom, L. A., Blaney, D. L., Squyres, S. W., Arvidson, R. E., Rice Jr, J. W., Tréguier, E., d'Uston, C., Grant, J. A., McSween Jr, H. Y., Golombek, M. P., Haldemann, A. F. C., de Souza Jr, P. A.

“…The strike and dip of lithologic units imaged in stereo by the Spirit rover in the Columbia Hills using three‐dimensional imaging software shows that measured…”
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Geology and MER target site characteristics along the southern rim of Isidis Planitia, Mars by Crumpler, L. S., Tanaka, K. L.

“…The southern rim of the Isidis basin contains one of the highest densities of valley networks, several restricted paleolake basins, and the stratigraphically…”
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Ancient Aqueous Environments at Endeavour Crater, Mars by Arvidson, R. E., Squyres, S. W., Bell, J. F., Catalano, J. G., Clark, B. C., Crumpler, L. S., de Souza, P. A., Fairén, A. G., Farrand, W. H., Fox, V. K., Gellert, R., Ghosh, A., Golombek, M. P., Grotzinger, J. P., Guinness, E. A., Herkenhoff, K. E., Jolliff, B. L., Knoll, A. H., Li, R., McLennan, S. M., Ming, D. W., Mittlefehldt, D. W., Moore, J. M., Morris, R. V., Murchie, S. L., Parker, T. J., Paulsen, G., Rice, J. W., Ruff, S. W., Smith, M. D., Wolff, M. J.

“…Opportunity has investigated in detail rocks on the rim of the Noachian age Endeavour crater, where orbital spectral reflectance signatures indicate the…”
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Spirit Mars Rover Mission: Overview and selected results from the northern Home Plate Winter Haven to the side of Scamander crater by Arvidson, R. E., Bell III, J. F., Bellutta, P., Cabrol, N. A., Catalano, J. G., Cohen, J., Crumpler, L. S., Des Marais, D. J., Estlin, T. A., Farrand, W. H., Gellert, R., Grant, J. A., Greenberger, R. N., Guinness, E. A., Herkenhoff, K. E., Herman, J. A., Iagnemma, K. D., Johnson, J. R., Klingelhöfer, G., Li, R., Lichtenberg, K. A., Maxwell, S. A., Ming, D. W., Morris, R. V., Rice, M. S., Ruff, S. W., Shaw, A., Siebach, K. L., de Souza, P. A., Stroupe, A. W., Squyres, S. W., Sullivan, R. J., Talley, K. P., Townsend, J. A., Wang, A., Wright, J. R., Yen, A. S.

“…This paper summarizes Spirit Rover operations in the Columbia Hills, Gusev crater, from sol 1410 (start of the third winter campaign) to sol 2169 (when…”
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The degradational history of Endeavour crater, Mars by Grant, J.A., Parker, T.J., Crumpler, L.S., Wilson, S.A., Golombek, M.P., Mittlefehldt, D.W.

“…•Endeavour crater has a discontinuous 10–160m high rim, and is 200–500m deep.•Endeavour crater is mostly buried by 100–200m Burns Formation/Grasberg…”
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In Situ Geologic Context Mapping Transect on the Floor of Jezero Crater From Mars 2020 Perseverance Rover Observations by Crumpler, L S, Horgan, B H N, Simon, J I, Stack, K M, Alwmark, S, Dromart, G, Wiens, R C, Udry, A, Brown, A J, Russell, P, Amundsen, H E F, Hamran, S -E, J Bell, III, Shuster, D, F J Calef, III, Núñez, J, Cohen, B A, Flannery, D, Herd, C D K, Hand, K P, Maki, J N, Schmidt, M, Golombek, M P, Williams, N R

“…In situ geologic context mapping based on rover and helicopter observations provides documentation of a nearly continuous record of geology and exposed surface…”
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Sedimentology and Stratigraphy of the Shenandoah Formation, Western Fan, Jezero Crater, Mars by Stack, K. M., Ives, L. R. W., Gupta, S., Lamb, M. P., Tebolt, M., Caravaca, G., Grotzinger, J. P., Russell, P., Shuster, D. L., Williams, A. J., Amundsen, H., Alwmark, S., Annex, A. M., Barnes, R., Bell, J., Beyssac, O., Bosak, T., Crumpler, L. S., Dehouck, E., Gwizd, S. J., Hickman‐Lewis, K., Horgan, B. H. N., Hurowitz, J., Kalucha, H., Kanine, O., Lesh, C., Maki, J., Mangold, N., Randazzo, N., Seeger, C., Williams, R. M. E., Brown, A., Cardarelli, E., Dypvik, H., Flannery, D., Frydenvang, J., Hamran, S.‐E., Núñez, J. I., Paige, D., Simon, J. I., Tice, M., Tate, C., Wiens, R. C.

“…Sedimentary fans are key targets of exploration on Mars because they record the history of surface aqueous activity and habitability. The sedimentary fan…”
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Depositional Facies and Sequence Stratigraphy of Kodiak Butte, Western Delta of Jezero Crater, Mars by Caravaca, G., Dromart, G., Mangold, N., Gupta, S., Kah, L. C., Tate, C., Williams, R. M. E., Le Mouélic, S., Gasnault, O., Bell, J., Beyssac, O., Nuñez, J. I., Randazzo, N., Rice, J., Crumpler, L. S., Williams, A., Russel, P., Stack, K. M., Farley, K. A., Maurice, S., Wiens, R. C.

“…High‐resolution 2D and 3D data remotely acquired by SuperCam's Remote Micro‐Imager and Mastcam‐Z aboard the Perseverance rover enabled us to characterize the…”
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Basaltic Rocks Analyzed by the Spirit Rover in Gusev Crater by McSween, H. Y., Arvidson, R. E., Bell, J. F., Blaney, D., Cabrol, N. A., Christensen, P. R., Clark, B. C., Crisp, J. A., Crumpler, L. S., D. J. Des Marais, Farmer, J. D., Gellert, R., Ghosh, A., Gorevan, S., Graff, T., Grant, J., Haskin, L. A., Herkenhoff, K. E., Johnson, J. R., Jolliff, B. L., Klingelhoefer, G., Knudson, A. T., McLennan, S., Milam, K. A., Moersch, J. E., Morris, R. V., Rieder, R., Ruff, S. W., de Souza, P. A., Squyres, S. W., Wänke, H., Wang, A., Wyatt, M. B., Yen, A., Zipfel, J.

“…The Spirit landing site in Gusev Crater on Mars contains dark, fine-grained, vesicular rocks interpreted as lavas. Pancam and Mini-Thermal Emission…”
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Spirit Mars Rover Mission to the Columbia Hills, Gusev Crater: Mission overview and selected results from the Cumberland Ridge to Home Plate by Arvidson, R. E., Ruff, S. W., Morris, R. V., Ming, D. W., Crumpler, L. S., Yen, A. S., Squyres, S. W., Sullivan, R. J., Bell III, J. F., Cabrol, N. A., Clark, B. C., Farrand, W. H., Gellert, R., Greenberger, R., Grant, J. A., Guinness, E. A., Herkenhoff, K. E., Hurowitz, J. A., Johnson, J. R., Klingelhöfer, G., Lewis, K. W., Li, R., McCoy, T. J., Moersch, J., McSween, H. Y., Murchie, S. L., Schmidt, M., Schröder, C., Wang, A., Wiseman, S., Madsen, M. B., Goetz, W., McLennan, S. M.

“…This paper summarizes the Spirit rover operations in the Columbia Hills of Gusev Crater from sols 513 to 1476 and provides an overview of selected findings…”
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Basaltic Rocks Analyzed by the Spirit Rover in Gusev Crater by McSween, H. Y., Arvidson, R. E., Bell, J. F., Blaney, D., Cabrol, N. A., Christensen, P. R., Clark, B. C., Crisp, J. A., Crumpler, L. S., Des Marais, D. J., Farmer, J. D., Gellert, R., Ghosh, A., Gorevan, S., Graff, T., Grant, J., Haskin, L. A., Herkenhoff, K. E., Johnson, J. R., Jolliff, B. L., Klingelhoefer, G., Knudson, A. T., McLennan, S., Milam, K. A., Moersch, J. E., Morris, R. V., Rieder, R., Ruff, S. W., de Souza, P. A., Squyres, S. W., Wänke, H., Wang, A., Wyatt, M. B., Yen, A., Zipfel, J.

“…The Spirit landing site in Gusev Crater on Mars contains dark, fine-grained, vesicular rocks interpreted as lavas. Pancam and Mini–Thermal Emission…”
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Rock spectral classes observed by the Spirit Rover's Pancam on the Gusev Crater Plains and in the Columbia Hills by Farrand, W. H., Bell III, J. F., Johnson, J. R., Arvidson, R. E., Crumpler, L. S., Hurowitz, J. A., Schröder, C.

“…This paper examines the ferrous and ferric iron mineralogy of rocks inferred from 246 visible/near‐infrared (430–1010 nm) multispectral observations made by…”
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Field reconnaissance geologic mapping of the Columbia Hills, Mars, based on Mars Exploration Rover Spirit and MRO HiRISE observations by Crumpler, L. S., Arvidson, R. E., Squyres, S. W., McCoy, T., Yingst, A., Ruff, S., Farrand, W., McSween, Y., Powell, M., Ming, D. W., Morris, R. V., Bell III, J. F., Grant, J., Greeley, R., DesMarais, D., Schmidt, M., Cabrol, N. A., Haldemann, A., Lewis, Kevin W., Wang, A. E., Schröder, C., Blaney, D., Cohen, B., Yen, A., Farmer, J., Gellert, R., Guinness, E. A., Herkenhoff, K. E., Johnson, J. R., Klingelhöfer, G., McEwen, A., Rice Jr, J. W., Rice, M., deSouza, P., Hurowitz, J.

“…Chemical, mineralogic, and lithologic ground truth was acquired for the first time on Mars in terrain units mapped using orbital Mars Reconnaissance Orbiter's…”
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Context of ancient aqueous environments on Mars from in situ geologic mapping at Endeavour Crater by Crumpler, L. S., Arvidson, R. E., Bell, J., Clark, B. C., Cohen, B. A., Farrand, W. H., Gellert, R., Golombek, M., Grant, J. A., Guinness, E., Herkenhoff, K. E., Johnson, J. R., Jolliff, B., Ming, D. W., Mittlefehldt, D. W., Parker, T., Rice, J. W., Squyres, S. W., Sullivan, R., Yen, A. S.

“…Using the Mars Exploration Rover Opportunity, we have compiled one of the first field geologic maps on Mars while traversing the Noachian terrain along the rim…”
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Relation of Major Volcanic Center Concentration on Venus to Global Tectonic Patterns by Crumpler, L. S., Head, James W., Aubele, Jayne C.

“…Global analysis of NASA Magellan image data indicates that a major concentration of volcanic centers covering ∼40 percent of the surface of Venus occurs…”
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