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NWA 7034 Martian Breccia: Disturbed Rb-Sr Systematics, Preliminary Is Approximately 4.4 Ga Sm-Nd AgeAgee et al. [1] reported a Rb-Sr age of 2.089 [plus or minus] 0.081 Ga for the unique Martian meteoritic breccia NWA 7034 making it the oldest Martian basalt, dating to the early Am-azonian epoch [2] of Martian geologic history. We have attempt-ed to confirm this exciting result. Our new Rb-Sr analyses show the Rb-Sr isotopic system to be disturbed, but preliminary Sm-Nd data suggest an even older age of approximately 4.4 Ga for at least some brec-cia components.
Document ID
20140001394
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Nyquist, L. E. (NASA Johnson Space Center Houston, TX, United States)
Shih, C.-Y. (Jacobs Technologies Engineering Science Contract Group Houston, TX, United States)
Peng, Zhan Xiong (Jacobs Technologies Engineering Science Contract Group Houston, TX, United States)
Agee, C (New Mexico Univ. Albuquerque, NM, United States)
Date Acquired
March 12, 2014
Publication Date
July 29, 2013
Subject Category
Lunar And Planetary Science And Exploration
Report/Patent Number
JSC-CN-28810
Meeting Information
Meeting: 2013 Meteoritical Society Meeting
Location: Edmonton, Alberta
Country: Canada
Start Date: July 29, 2013
End Date: August 2, 2013
Sponsors: Meteoritical Society
Distribution Limits
Public
Copyright
Public Use Permitted.

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