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There are a total of 203 record(s) matching your query.
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Impact Histories of Vesta and Vestoids inferred from Howardites, Eucrites, and Diogenites
Author(s): Scott, E. R. D.; Bogard, D. D.; Bottke, W. F.; Taylor, G. J.; Greenwood, R. C.; Franchi, I. A.; Keil, K.; Moskovitz, N. A.; Nesvorny, D.
Abstract: The parent body of the howardites, eucrites and diogenites (HEDs) is thought to be asteroid (4) Vesta [1]. However, several eucrites have now been recognized, like NWA 011 and Ibitira, with major element compositions and ...
NASA Center: Johnson Space Center
Publication Year: 2009
Added to NTRS: 2009-02-06
Document ID: 20090005183
Apollo 15 rake sample microbreccias and non-mare rocks: Bulk rock, mineral and glass electron microprobe analyses
Author(s): Hlava, P. F.; Green, J. A.; Prinz, M.; Nehru, C. E.; Keil, K.; Dowty, E.; Bunch, T. E.
Abstract: Quantitative electron microprobe data of Apollo 15 nonmare rake samples are presented. Bulk analyses of lithic fragments in the nomare rocks (expressed in oxide weight-percent) and the corresponding CIPW molecular norms are ...
NASA Center: Ames Research Center
Publication Year: 1972
Added to NTRS: 2008-07-02
Accession Number: 74N23364; Document ID: 19740015251; Report Number: NASA-TM-X-70079
Classificational parameters for acapulcoites and lodranites: The cases of FRO 90011, EET 84302 and ALH A81187/84190
Author(s): Mccoy, T. J.; Keil, K.; Clayton, R. N.; Mayeda, T. K.
Abstract: Acapulcoites and lodranites probably sample a common parent body, which has experienced a range of partial melting. We present classificational parameters which allow acapulcoites-lodranites to be distinguished from other ...
NASA Center: NASA (non Center Specific)
Publication Year: 1993
Added to NTRS: 2008-06-02
Accession Number: 94N16389; Document ID: 19940011916
I-Xe structure of ILAFEGH 009 and shallowater: Evidence for early formation and rapid cooling of impact-derived enstatite meteorites
Author(s): Kehm, K.; Nichols, R. H., Jr.; Hohenberg, C. M.; Mccoy, T. J.; Keil, K.
Abstract: Enstatite meteorites have proven to be ideal samples for past studies of the I-Xe system. This work focuses on two enstatite meteorites that were formed by impact processes. Ilafegh 009 is a clast-free impact melt rock from ...
NASA Center: NASA (non Center Specific)
Publication Year: 1993
Added to NTRS: 2008-06-02
Accession Number: 94N16305; Document ID: 19940011832
The dregs of crystallization in Zagami
Author(s): Mccoy, T. J.; Keil, K.; Taylor, G. J.
Abstract: The Zagami shergottite is a basaltic meteorite which formed when a phenocryst-bearing lava flow was emplaced at or near the surface of Mars. Recently, a cm-sized olivine-rich lithology has been identified in Zagami by ...
NASA Center: NASA (non Center Specific)
Publication Year: 1993
Added to NTRS: 2008-06-02
Accession Number: 94N16390; Document ID: 19940011917
Factors Controlling the Bulk Densities of Asteroids
Author(s): Love, S.; Wilson, L.; Keil, K.
Abstract: No Abstract Available
NASA Center: Jet Propulsion Laboratory
Publication Year: 1998
Added to NTRS: 2006-12-25
Document ID: 20060041267
A Petrologic Study of the IAB Iron Meteorites: Constraints on the Formation of the IAB-Winonaite Parent Body
Author(s): Benedix, G. K.; McCoy, T. J.; Keil, K.; Love, S. G.
Abstract: We have studied IAB iron meteorites and their silicate-bearing inclusions to elucidate the origin of their parent body. We have divided IAB irons into five categories which best describe the inclusions and other properties ...
NASA Center: Jet Propulsion Laboratory
Publication Year: 1998
Added to NTRS: 2006-12-25
Document ID: 20060041222
ON A POSSIBLE CORRELATION BETWEEN CLASSIFICATIONS AND K-A AGES OF CHONDRITES
Author(s): Keil, K.
Abstract: Correlation between two gas retention age groups and high and low iron group chondrites
NASA Center: NASA (non Center Specific)
Publication Year: 1963
Added to NTRS: 2006-11-06
Accession Number: 63N15933; Document ID: 19630006057
Polymineralic inclusions in the Odessa iron meteorite.
Author(s): Keil, K.; Marshall, R. R.
Abstract: Polymineral contents of globular and elongated nodules in Odessa iron meteorite
NASA Center: NASA (non Center Specific)
Publication Year: 1965
Added to NTRS: 2006-11-06
Accession Number: 66A19259; Document ID: 19660039969
Electron microprobe study of the jajh deh kot lalu enstatite chondrite
Author(s): Andersen, C. A.; Keil, K.
Abstract: No Abstract Available
NASA Center: Ames Research Center
Publication Year: 1964
Added to NTRS: 2006-11-06
Accession Number: 66N86101; Document ID: 19660086614; Report Number: NASA-TM-X-54839
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