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Yamato 74080 meteorite, Queen Fabiola Mts, Queen Maud Land, Eastern Antarctica, Antarcticai
| Regional Level Types | |
|---|---|
| Yamato 74080 meteorite | Meteorite Fall Location |
| Queen Fabiola Mts | Mountain Range |
| Queen Maud Land | Region |
| Eastern Antarctica | Region |
| Antarctica | Continent |
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Latitude & Longitude (WGS84):
71° 49' 9'' South , 36° 11' 54'' East
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
Other/historical names associated with this locality:
Y-74080
Official name: Yamato 74080
Synonym: Y-74080
Observed fall: no
Found: 1974
Coordinates: 71°49'9"S, 36°11'54"E
Approx. recovered weight: 0.537 kg
Chondrite, type L6
Yamato 74080 is an equilibrated L6 chondrite with strongly shocked feature and most of olivine and pyroxene grains are highly fractured. The high densities of natural tracks in both minerals cannot be explained by the spontaneous fission of 238U and 244Pu at all. The most possible source of the fossil particle tracks is considered to be cosmic-ray heavy primaries, because the track density in olivine grains with very low uranium content is also high. Assuming that all of observed tracks in bronzite were originated from cosmic very heavy nuclei and the present sample was near the surface of the preatmospheric mass, the cosmic-ray exposure age of this chondrite can be estimated approximately to be 14 Myr (Yabuki, 1978).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
1 valid mineral.
Meteorite/Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Enstatite Formula: Mg2Si2O6 |
| ⓘ Enstatite var. Bronzite Formula: (Mg,Fe2+)2[SiO3]2 |
| ⓘ 'Fayalite-Forsterite Series' |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Enstatite | 9.DA.05 | Mg2Si2O6 |
| ⓘ | var. Bronzite | 9.DA.05 | (Mg,Fe2+)2[SiO3]2 |
| Unclassified | |||
| ⓘ | 'Fayalite-Forsterite Series' | - | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Enstatite | Mg2Si2O6 |
| O | ⓘ Enstatite var. Bronzite | (Mg,Fe2+)2[SiO3]2 |
| O | ⓘ Fayalite-Forsterite Series | |
| Mg | Magnesium | |
| Mg | ⓘ Enstatite | Mg2Si2O6 |
| Mg | ⓘ Enstatite var. Bronzite | (Mg,Fe2+)2[SiO3]2 |
| Mg | ⓘ Fayalite-Forsterite Series | |
| Si | Silicon | |
| Si | ⓘ Enstatite | Mg2Si2O6 |
| Si | ⓘ Enstatite var. Bronzite | (Mg,Fe2+)2[SiO3]2 |
| Si | ⓘ Fayalite-Forsterite Series | |
| Fe | Iron | |
| Fe | ⓘ Enstatite var. Bronzite | (Mg,Fe2+)2[SiO3]2 |
| Fe | ⓘ Fayalite-Forsterite Series | |
Other Regions, Features and Areas containing this locality
Antarctic MeteoritesGroup of Meteorite Fall Locations
Antarctic PlateTectonic Plate
- Tonian Oceanic Arc TerraneVolcanic Arc
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