Sayh al Uhaymir 169: Difference between revisions
Steve Hart (talk | contribs) m wikilink fixed (bypassing disambig) |
SimLibrarian (talk | contribs) m comma fix, rm unnecessary s from "grams" |
||
| (30 intermediate revisions by 19 users not shown) | |||
| Line 1: | Line 1: | ||
{{Short description|Lunar meteorite}} |
|||
| ⚫ | |||
{{Infobox meteorite |
|||
|Name = Sayh al Uhaymir 169 |
|||
|Alternative names = SaU 169 |
|||
|Image = Sayh al Uhaymir 169.jpg |
|||
|Image_caption = Complete stone of SaU169 showing the fusion crust and also a large clast |
|||
|Type = [[Achondrite]] |
|||
|Class = [[Lunar meteorite]] |
|||
|Group = [[Impact breccia]] |
|||
|Structural_classification = |
|||
|Composition = 45.15% SiO{{sub|2}}, 15.88% Al{{sub|2}}O{{sub|3}}, 11.09% MgO, 10.67% FeO, 10.16% CaO, 2.21% TiO{{sub|2}}, 1.14% P{{sub|2}}O{{sub|5}}, 0.98% Na{{sub|2}}O, 0.54% K{{sub|2}}O, 0.33% S, 0.14% MnO |
|||
|Shock = |
|||
|Weathering = |
|||
|Country = [[Oman]] |
|||
|Region = Sayh al Uhaymir |
|||
|Lat_Long = {{coord|20.5733|57.3234|display=inline,title}} |
|||
|Observed_fall = No |
|||
|Fall_date = < 9700 years ago |
|||
|Found_date = 16 January 2002 |
|||
|TKW = {{convert|206.45|g|oz}} |
|||
|Image2 = Sayh al Uhaymir 169, as found in desert.jpg |
|||
|Image2_caption = Sayh al Uhaymir 169 as found in the Oman desert |
|||
}} |
|||
| ⚫ | |||
This stone is an [[impact event|impact-melt]] [[breccia]] with exceedingly high concentrations of [[thorium]] and other |
This stone is an [[impact event|impact-melt]] [[breccia]] with exceedingly high concentrations of [[thorium]] and other [[incompatible element]]s; [[phosphorus]], [[rare-earth element]]s, 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 [[Crystallisation|crystallized]]. The impact that eventually sent this stone to the Earth is dated at 3.9 billion years and could be the [[Mare Imbrium|Imbrium impact]]. It collided with the Earth less than 9,700 years ago. |
||
It is complete, a light gray-greenish rounded stone, dimensions |
It is complete, a light gray-greenish rounded stone, dimensions {{convert|70|×|43|x|40|mm|abbr=on}} and mass {{convert|206|g}}, found on January 16, 2002, in the central desert of Oman at 20° 34.391' N and 57° 19.400' E. |
||
According to geologist [[Edwin Gnos]] and coworkers, the meteorite's origin can be pinpointed to the vicinity of the [[Lalande (crater)|Lalande impact crater]]; isotopic analysis shows a complex history of four distinct lunar impacts: |
According to geologist [[Edwin Gnos]] and coworkers, the meteorite's origin can be pinpointed to the vicinity of the [[Lalande (crater)|Lalande impact crater]]; isotopic analysis shows a complex history of four distinct lunar impacts: |
||
"Crystallization of the impact melt occurred at 3909 ± 13 Ma, followed by exhumation by a second impact at 2800 Ma, which raised the sample to a regolith position at unconstrained depth. A third impact at 200 Ma moved the material closer to the lunar surface, where it mixed with solar-wind–containing regolith. It was launched into space by a fourth impact at <0.34 Ma" |
"Crystallization of the impact melt occurred at 3909 ± 13 Ma, followed by exhumation by a second impact at 2800 Ma, which raised the sample to a regolith position at unconstrained depth. A third impact at 200 Ma moved the material closer to the lunar surface, where it mixed with solar-wind–containing regolith. It was launched into space by a fourth impact at <0.34 Ma".<ref>Gnos, Edwin, et al., 2004, [https://www.science.org/doi/abs/10.1126/science.1099397 Pinpointing the Source of a Lunar Meteorite: Implications for the Evolution of the Moon], [[Science (journal)|Science]] 30 July 2004: Vol. 305 no. 5684 pp. 657–659. {{doi|10.1126/science.1099397}}.</ref> |
||
==See also== |
==See also== |
||
* [[ |
* [[Glossary of meteoritics]] |
||
* [[List of lunar meteorites]] |
|||
==External links== |
==External links== |
||
| ⚫ | |||
==References== |
|||
| ⚫ | |||
{{Reflist}} |
|||
*http://illite.unibe.ch/sau169/ |
|||
*http://www.ilexikon.com/Sayh_al_Uhaymir_169.html |
|||
*http://www.zeit.de/2004/33/3_Fragen |
|||
{{Meteorites}} |
|||
{{Meteorites by name}} |
|||
| ⚫ | |||
| ⚫ | |||
[[Category:Meteorites found in Oman]] |
|||
[[de:Sayh al Uhaymir 169]] |
|||
| ⚫ | |||
| ⚫ | |||
[[Category:2002 in science]] |
|||
[[Category:January 2002 events in Asia]] |
|||
Latest revision as of 21:06, 20 March 2023
| Sayh al Uhaymir 169 | |
|---|---|
 Complete stone of SaU169 showing the fusion crust and also a large clast | |
| Type | Achondrite |
| Class | Lunar meteorite |
| Group | Impact breccia |
| Composition | 45.15% SiO2, 15.88% Al2O3, 11.09% MgO, 10.67% FeO, 10.16% CaO, 2.21% TiO2, 1.14% P2O5, 0.98% Na2O, 0.54% K2O, 0.33% S, 0.14% MnO |
| Country | Oman |
| Region | Sayh al Uhaymir |
| Coordinates | 20°34′24″N 57°19′24″E / 20.5733°N 57.3234°E |
| Observed fall | No |
| Fall date | < 9700 years ago |
| Found date | 16 January 2002 |
| TKW | 206.45 grams (7.282 oz) |
| Alternative names | SaU 169 |
 Sayh al Uhaymir 169 as found in the Oman desert | |
Sayh al Uhaymir 169 (SaU 169) is a 206 gram lunar meteorite found in the Sayh al Uhaymir region of 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, 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 billion years and could be the Imbrium impact. It collided with the Earth less than 9,700 years ago.
It is complete, a light gray-greenish rounded stone, dimensions 70 mm × 43 mm × 40 mm (2.8 in × 1.7 in × 1.6 in) and mass 206 grams (7.3 oz), found on January 16, 2002, in the central desert of Oman at 20° 34.391' N and 57° 19.400' E.
According to geologist Edwin Gnos and coworkers, the meteorite's origin can be pinpointed to the vicinity of the Lalande impact crater; isotopic analysis shows a complex history of four distinct lunar impacts: "Crystallization of the impact melt occurred at 3909 ± 13 Ma, followed by exhumation by a second impact at 2800 Ma, which raised the sample to a regolith position at unconstrained depth. A third impact at 200 Ma moved the material closer to the lunar surface, where it mixed with solar-wind–containing regolith. It was launched into space by a fourth impact at <0.34 Ma".[1]
See also[edit]
External links[edit]
References[edit]
- ^ Gnos, Edwin, et al., 2004, Pinpointing the Source of a Lunar Meteorite: Implications for the Evolution of the Moon, Science 30 July 2004: Vol. 305 no. 5684 pp. 657–659. doi:10.1126/science.1099397.