Search Results - "McSween, Harry"

Elemental Composition of the Martian Crust by McSween, Harry Y. Jr, Taylor, G. Jeffrey, Wyatt, Michael B

“…The composition of Mars' crust records the planet's integrated geologic history and provides clues to its differentiation. Spacecraft and meteorite data now…”
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Arya Udry citation for the 2022 Nier Prize by McSween, Harry Y.

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Nature and degree of aqueous alteration in CM and CI carbonaceous chondrites by Takir, Driss, Emery, Joshua P., Mcsween Jr, Harry Y., Hibbitts, Charles A., Clark, Roger N., Pearson, Neil, Wang, Alian

“…We investigated the petrologic, geochemical, and spectral parameters that relate to the type and degree of aqueous alteration in nine CM chondrites and one CI…”
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Carbonaceous chondrites as analogs for the composition and alteration of Ceres by McSween, Harry Y., Emery, Joshua P., Rivkin, Andrew S., Toplis, Michael J., C. Castillo‐Rogez, Julie, Prettyman, Thomas H., De Sanctis, M. Cristina, Pieters, Carle M., Raymond, Carol A., Russell, Christopher T.

“…The mineralogy and geochemistry of Ceres, as constrained by Dawn's instruments, are broadly consistent with a carbonaceous chondrite (CM/CI) bulk composition…”
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Diogenites as polymict breccias composed of orthopyroxenite and harzburgite by BECK, Andrew W., McSWEEN Jr, Harry Y.

“…– A few relatively unbrecciated olivine‐rich diogenites consist of an equilibrium assemblage of olivine and magnesian orthopyroxene (harzburgite). More common…”
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Dawn; the Vesta-HED connection; and the geologic context for eucrites, diogenites, and howardites by McSween Jr, Harry Y., Binzel, Richard P., De Sanctis, M. Cristina, Ammannito, Eleonora, Prettyman, Thomas H., Beck, Andrew W., Reddy, Vishnu, Le Corre, Lucille, Gaffey, Michael J., McCord, Thomas B., Raymond, Carol A., Russell, Christopher T.

“…The Dawn mission has provided new evidence strengthening the identification of asteroid Vesta as the parent body of the howardite, eucrite, and diogenite (HED)…”
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The Geologically Recent Giant Impact Basins at Vesta's South Pole by Schenk, Paul, O'Brien, David P., Marchi, Simone, Gaskell, Robert, Preusker, Frank, Roatsch, Thomas, Jaumann, Ralf, Buczkowski, Debra, McCord, Thomas, McSween, Harry Y., Williams, David, Yingst, Aileen, Raymond, Carol, Russell, Chris

“…Dawn's global mapping of Vesta reveals that its observed south polar depression is composed of two overlapping giant impact features. These large basins…”
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Assessing global trends in Mars magma compositions using ground truth by McSween, Harry Y., Head, James W., Rogers, A. Deanne, Schmidt, Mariek E.

“…Global magmatic trends inferred from gamma‐ray, visible/near‐infrared, and thermal infrared spectrometers on Mars‐orbiting spacecraft have been used to…”
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Petrology and trace element geochemistry of Tissint, the newest shergottite fall by Balta, J. Brian, Sanborn, Matthew E., Udry, Arya, Wadhwa, Meenakshi, McSween Jr, Harry Y.

“…The fall and recovery of the Tissint meteorite in 2011 created a rare opportunity to examine a Martian sample with a known, short residence time on Earth…”
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Formation of Evolved Rocks at Gale Crater by Crystal Fractionation and Implications for Mars Crustal Composition by Udry, Arya, Gazel, Esteban, McSween, Harry Y.

“…The recent discovery of some ancient evolved rocks in Gale crater by the Curiosity rover has prompted the hypothesis that continental crust formed in early…”
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HED Meteorites and Their Relationship to the Geology of Vesta and the Dawn Mission by McSween, Harry Y., Mittlefehldt, David W., Beck, Andrew W., Mayne, Rhiannon G., McCoy, Timothy J.

“…Howardite-eucrite-diogenite (HED) meteorites, thought to be derived from 4 Vesta, provide the best sampling available for any differentiated asteroid. However,…”
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Ferroan olivine‐bearing eucrite clasts found in howardites by Patzer, Andrea, McSween, Harry Y.

“…We investigated several olivine‐bearing, medium‐grained, ophitic to subophitic eucritic clasts from three different Antarctic howardites. Based on grain size…”
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Elemental Mapping by Dawn Reveals Exogenic H in Vesta's Regolith by Prettyman, Thomas H., Mittlefehldt, David W., Yamashita, Naoyuki, Lawrence, David J., Beck, Andrew W., Feldman, William C., McCoy, Timothy J., McSween, Harry Y., Toplis, Michael J., Titus, Timothy N., Tricarico, Pasquale, Reedy, Robert C., Hendricks, John S., Forni, Olivier, Le Corre, Lucille, Li, Jian-Yang, Mizzon, Hugau, Reddy, Vishnu, Raymond, Carol A., Russell, Christopher T.

“…Using Dawn's Gamma Ray and Neutron Detector, we tested models of Vesta's evolution based on studies of howardite, eucrite, and diogenite (HED) meteorites…”
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Application of the MELTS algorithm to Martian compositions and implications for magma crystallization by Balta, J. Brian, McSween Jr, Harry Y.

“…The MELTS algorithm, the most commonly used tool for calculating crystallization of basaltic magmas, uses thermodynamic parameters calibrated by experiments on…”
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Grain size and hydrodynamic sorting controls on the composition of basaltic sediments: Implications for interpreting martian soils by Fedo, Christopher M., McGlynn, Ian O., McSween, Harry Y.

“…Impact shattering of bedrock and wind-driven sorting have been identified as primary processes modifying the size, shape, and roundness of basalt-derived…”
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Insights into Ceres's evolution from surface composition by Castillo‐Rogez, Julie, Neveu, Marc, McSween, Harry Y., Fu, Roger R., Toplis, Michael J., Prettyman, Thomas

“…Inspired by the recent results of the Dawn mission, thermodynamic models of rock alteration and brine evaporation have been used to help understand the…”
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Soil mineralogy at the Mars Exploration Rover landing sites: An assessment of the competing roles of physical sorting and chemical weathering by McGlynn, Ian O., Fedo, Christopher M., McSween Jr, Harry Y.

“…Soils in Gusev Crater and Meridiani Planum derive primarily from a surface dominated by basalt. The modal mineralogy of primary (igneous) and secondary…”
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Analysis of ordinary chondrites using powder X-ray diffraction: 1. Modal mineral abundances by DUNN, Tasha L., CRESSEY, Gordon, McSWEEN Jr, Harry Y., McCOY, Timothy J.

“…– Powder X‐ray diffraction (XRD) is used to quantify the modal abundances (in wt%) of 18 H, 17 L, and 13 LL unbrecciated ordinary chondrite falls, which…”
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Color and Albedo Heterogeneity of Vesta from Dawn by Reddy, Vishnu, Nathues, Andreas, Le Corre, Lucille, Sierks, Holger, Li, Jian-Yang, Gaskell, Robert, McCoy, Timothy, Beck, Andrew W., Schröder, Stefan E., Pieters, Carle M., Becker, Kris J., Buratti, Bonnie J., Denevi, Brett, Blewett, David T., Christensen, Ulrich, Gaffey, Michael J., Gutierrez-Marques, Pablo, Hicks, Michael, Keller, Horst Uwe, Maue, Thorsten, Mottola, Stefano, McFadden, Lucy A., McSween, Harry Y., Mittlefehldt, David, O'Brien, David P., Raymond, Carol, Russell, Christopher

“…Multispectral images (0.44 to 0.98 μm) of asteroid (4) Vesta obtained by the Dawn Framing Cameras reveal global color variations that uncover and help…”
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Spectral properties and mineral compositions of acapulcoite–lodranite clan meteorites: Establishing S‐type asteroid–meteorite connections by Lucas, Michael P., Emery, Joshua P., Hiroi, Takahiro, McSween, Harry Y.

“…Except for asteroid sample return missions, measurements of the spectral properties of both meteorites and asteroids offer the best possibility of linking…”
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