Search Results - "Mcsween Jr, Harry Y."

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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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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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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Surface and crater-exposed lithologic units of the Isidis Basin as mapped by coanalysis of THEMIS and TES derived data products by Tornabene, Livio L., Moersch, Jeffrey E., McSween Jr, Harry Y., Hamilton, Victoria E., Piatek, Jennifer L., Christensen, Phillip R.

“…The stratigraphy and mineral heterogeneity of surface and crater‐exposed deposits in the southwestern portion of the Isidis Basin were investigated using…”
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Morphology and Composition of the Surface of Mars: Mars Odyssey THEMIS Results by Christensen, Philip R., Bandfield, Joshua L., Bell, James F., Gorelick, Noel, Hamilton, Victoria E., Ivanov, Anton, Jakosky, Bruce M., Kieffer, Hugh H., Lane, Melissa D., Malin, Michael C., McConnochie, Timothy, McEwen, Alfred S., McSween, Harry Y., Mehall, Greg L., Moersch, Jeffery E., Nealson, Kenneth H., Rice, James W., Richardson, Mark I., Ruff, Steven W., Smith, Michael D., Titus, Timothy N., Wyatt, Michael B.

“…The Thermal Emission Imaging System (THEMIS) on Mars Odyssey has produced infrared to visible wavelength images of the martian surface that show lithologically…”
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Identification of large (2–10 km) rayed craters on Mars in THEMIS thermal infrared images: Implications for possible Martian meteorite source regions by Tornabene, Livio L., Moersch, Jeffrey E., McSween Jr, Harry Y., McEwen, Alfred S., Piatek, Jennifer L., Milam, Keith A., Christensen, Phillip R.

“…Four definitive and three probable rayed craters have been identified on Mars using 100‐m resolution thermal infrared images obtained by the Mars Odyssey…”
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MIL 03443, a dunite from asteroid 4 Vesta: Evidence for its classification and cumulate origin by BECK, Andrew W., MITTLEFEHLDT, David W., McSWEEN Jr, Harry Y., RUMBLE III, Douglas, LEE, Cin-Ty A., BODNAR, Robert J.

“…– The absence of dunite (>90 vol% olivine) in the howardite, eucrite, and diogenite (HED) meteorite suite, when viewed with respect to spectroscopic and…”
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Petrogenesis of high-phosphorous Wishstone Class rocks in Gusev Crater, Mars by Usui, Tomohiro, McSween Jr, Harry Y., Clark III, Benton C.

“…The Spirit rover has analyzed a wide variety of alkaline volcanic rocks in Gusev Crater. Among them are Wishstone Class tephrites with unusually high P2O5 (>5…”
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Analysis of ordinary chondrites using powder X-ray diffraction: 2. Applications to ordinary chondrite parent-body processes by DUNN, Tasha L., McSWEEN Jr, Harry Y., McCOY, Timothy J., CRESSEY, Gordon

“…– We evaluate the chemical and physical conditions of metamorphism in ordinary chondrite parent bodies using X‐ray diffraction (XRD)‐measured modal mineral…”
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Spacecraft instrument technology and cosmochemistry by McSween, Harry Y. Jr, McNutt, Ralph L. Jr, Prettyman, Thomas H

“…Measurements by instruments on spacecraft have significantly advanced cosmochemistry. Spacecraft missions impose serious limitations on instrument volume,…”
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K-Th-Ti systematics and new three-component mixing model of HED meteorites: Prospective study for interpretation of gamma-ray and neutron spectra for the Dawn mission by USUI, Tomohiro, McSWEEN Jr, Harry Y., MITTLEFEHLDT, David W., PRETTYMAN, Thomas H.

“…– The Dawn spacecraft carries a gamma‐ray and neutron detector (GRaND), which will measure and map the abundances of selected elements on the surface of…”
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Plagioclase compositions derived from thermal emission spectra of compositionally complex mixtures: Implications for Martian feldspar mineralogy by Milam, Keith A., McSween Jr, Harry Y., Christensen, Philip R.

“…The compositions of plagioclase, the most abundant mineral in the Martian crust, reflect changing conditions during magmatic evolution. Plagioclase contains…”
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Mixing relationships and the effects of secondary alteration in the Wishstone and Watchtower Classes of Husband Hill, Gusev Crater, Mars by Hurowitz, Joel A., McLennan, Scott M., McSween Jr, Harry Y., DeSouza Jr, Paulo A., Klingelhöfer, Göstar

“…The Wishstone and Watchtower Class rocks on Husband Hill preserve evidence for a geochemical relationship consistent with two‐component mixing between a high…”
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Thermal emission spectra of terrestrial alkaline volcanic rocks: Applications to Martian remote sensing by Dunn, Tasha L., McSween Jr, Harry Y., Christensen, Philip R.

“…The long‐standing assessment that Martian igneous compositions are strictly subalkaline has recently been brought into question by the detection of alkaline…”
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Identity and emplacement of domical structures in the western Arcadia Planitia, Mars by Rampey, Michael L., Milam, Keith A., McSween Jr, Harry Y., Moersch, Jeffrey E., Christensen, Philip R.

“…Morphologic, morphometric, and thermophysical aspects of domical structures in a restricted part of the Mars northern plains were characterized using Mars…”
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TES and THEMIS study of proposed paleolake basins within the Aeolis quadrangle of Mars by Stockstill, Karen R., Moersch, Jeffrey E., McSween Jr, Harry Y., Piatek, Jennifer, Christensen, Philip R.

“…Several studies have described photogeologic evidence for paleolacustrine basins on Mars, mostly within impact craters. If these basins contained persistent…”
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The Thermal Emission Imaging System (THEMIS) for the Mars 2001 Odyssey Mission by Christensen, Philip R, Jakosky, Bruce M, Kieffer, Hugh H, Malin, Michael C, McSween, Harry Y, Nealson, Kenneth, Mehall, Greg L, Silverman, Steven H, Ferry, Steven, Caplinger, Michael, Ravine, Michael

“…The Thermal Emission Imaging System (THEMIS) on 2001 Mars Odyssey will investigate the surface mineralogy and physical properties of Mars using multi-spectral…”
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Paired nakhlites MIL 090030, 090032, 090136, and 03346: Insights into the Miller Range parent meteorite by UDRY, Arya, McSWEEN Jr, Harry Y., LECUMBERRI-SANCHEZ, Pilar, BODNAR, Robert J.

“…– Miller Range (MIL) 03346 is the most oxidized and least equilibrated nakhlite known and displays the highest amount of intercumulus phase. The discovery of…”
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Identification of quartzofeldspathic materials on Mars by Bandfield, Joshua L., Hamilton, Victoria E., Christensen, Philip R., McSween Jr, Harry Y.

“…A unique spectral component has been identified near and on the central peaks of two 30 km diameter craters in northern Syrtis Major. These exposures are…”
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Constraints on the composition and petrogenesis of the Martian crust by McSween Jr, Harry Y., Grove, Timothy L., Wyatt, Michael B.

“…Spectral interpretation that silicic rocks are widespread on Mars implies that Earth's differentiated crust is not unique. Evaluation of observations bearing…”
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