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Martian Meteorite Age Studies: Insights and Conundrums

Discover the significance of two age studies on Martian meteorites, revealing early crust formation and unresolved age conundrums within shergottites. Explore the evolving understanding of Martian rock ages through baddeleyite data analysis and Pb isotopic findings.

katalin-molnar
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Martian Meteorite Age Studies: Insights and Conundrums

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  1. The Importance of When Two important age studies of Martian meteorites: Baddeleyites in shergottite NWA 5298 Evolved, alkalicclasts in Black Beauty sample NWA 7533 indicate an early age for crust formation on Mars. Ages of baddeleyite crystals in NWA 5298 indicate that shergottites are young. Clasts in Black Beauty impact melt breccia

  2. Ancient Clasts in Black Beauty

  3. Shergottite Age Conundrum (From Borg et al., 2003, GCA, v. 67(18), p. 3519-3536.) Pb isotopic data indicate old ages for Martian meteorites, including shergottites. But internal isochrons suggest young ages for shergottites.

  4. Baddeleyite Data Suggest Shergottites Are Young

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