Sayh al Uhaymir 169: Difference between revisions
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This stone is an [[impact event|impact-melt]] [[breccia]] with exceedingly high concentrations of [[thorium]] and other ''incompatible'' elements; [[phosphorus]], the [[rare earth]] elements, and the three most important naturally occurring [[radioactive]] elements, [[potassium]], [[thorium]], and [[uranium]] have been segregated in the liquid phase when the lunar [[mineral]]s [[crytallisation|crystallized]]. The impact that eventually sent this stone to the Earth is dated at 3.9 million years and could be the [[Mare Imbrium|Imbrium impact]]. |
This stone is an [[impact event|impact-melt]] [[breccia]] with exceedingly high concentrations of [[thorium]] and other ''incompatible'' elements; [[phosphorus]], the [[rare earth]] elements, and the three most important naturally occurring [[radioactive]] elements, [[potassium]], [[thorium]], and [[uranium]] have been segregated in the liquid phase when the lunar [[mineral]]s [[crytallisation|crystallized]]. The impact that eventually sent this stone to the Earth is dated at 3.9 million years and could be the [[Mare Imbrium|Imbrium impact]]. |
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Revision as of 22:23, 7 August 2004
Sayh al Uhaymir 169 (SaU 169) is a 206g lunar meteorite found in the Sultanate of Oman in January 2002.
This stone is an impact-melt breccia with exceedingly high concentrations of thorium and other incompatible elements; phosphorus, the rare earth elements, and the three most important naturally occurring radioactive elements, potassium, thorium, and uranium have been segregated in the liquid phase when the lunar minerals crystallized. The impact that eventually sent this stone to the Earth is dated at 3.9 million years and could be the Imbrium impact.