|
|
 |
 |
|
|
|
Selected Navigations:
Author >
[x]
|
Sort results by:
|
|
|
There are a total of 5 record(s) matching your query.
Sorted by: Date Added To NTRS in Descending order
|
Mn-53-Cr-53 Systematics of R-Chondrite NWA 753
Author(s): Jogo, K.; Shih, C-Y.; Reese, Y. D.; Nyquist, L. E.
Abstract: Chondrules and chondrites are interpreted as objects formed in the early solar system, and it is important to study them in order to elucidate its evolution. Here, we report the study of the Mn-Cr systematics of the ...
NASA Center: Johnson Space Center
Publication Year: 2006
Added to NTRS: 2008-08-12
Document ID: 20080030170
Prospects for Chronological Studies of Martian Rocks and Soils
Author(s): Nyquist, L. E.; Shih, C-Y.; Reese, Y. D.
Abstract: Chronological information about Martian processes comes from two sources: Crater-frequency studies and laboratory studies of Martian meteorites. Each has limitations that could be overcome by studies of returned Martian ...
NASA Center: Johnson Space Center
Publication Year: 2008
Added to NTRS: 2008-04-01
Document ID: 20080012523
Sm-Nd for Norite 78236 and Eucrite Y980318/433: Implications for Planetary and Solar System Processes
Author(s): Nyquist, L. E.; Shih, C-Y.; Reese, Y. D.
Abstract: Here, we compare Sm-147-Nd-143 and Sm-146-Nd-142 data for lunar norite 78236 to those for approximately 4.54-4.56 Ga old cumulate eucrite Yamato 980318/433 and show that the norite data are compatible with its derivation ...
NASA Center: Johnson Space Center
Publication Year: 2008
Added to NTRS: 2008-04-01
Document ID: 20080013410
Sm-Nd and Rb-Sr Ages for MIL 05035: Implications for Surface and Mantle Sources
Author(s): Nyquist, L. E.; Shih, C-Y.; Reese, Y. D.
Abstract: The Sm-Nd and Rb-Sr ages and also the initial Nd and Sr isotopic compositions of MIL 05035 are the same as those of A-881757. Comparing the radiometric ages of these meteorites to lunar surface ages as modeled from crater ...
NASA Center: Johnson Space Center
Publication Year: 2007
Added to NTRS: 2007-02-08
Document ID: 20070003760
Crystallization Age of NWA 1460 Shergottite: Paradox Revisited
Author(s): Nyquist, L. E.; Shih, C-Y.; Reese, Y. D.; Irving, A. J.
Abstract: We have determined the Rb-Sr age of basaltic shergottite NWA 1460 to be 312 /- 3 Ma, and the Sm-Nd age to be 352 /- 30 Ma. The initial Sr and Nd isotopic compositions of NWA 1460 suggest it is an earlier melting product of a ...
NASA Center: Johnson Space Center
Publication Year: 2004
Added to NTRS: 2004-12-28
Document ID: 20040191797
|
|
|
|
|
