Steingarden Nunataks 07005 meteorite, Steingarden Nunataks site, Queen Maud Land, Eastern Antarctica, Antarcticai
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Latitude & Longitude (WGS84):
72° 20' 50'' South , 16° 8' 56'' East
Latitude & Longitude (decimal):
Locality type:
Meteorite Class:
Meteoritical Society Class:
Deposit first discovered:
2007
Köppen climate type:
Other/historical names associated with this locality:
STG 07005
Official name: Steingarden Nunataks 07005
Abbreviation: STG 07005
Observed fall: no
Found: 2007
Coordinates (Meteoritical Bulletin 102): 72°20.842' S, 16°8.938' E
Recovered weight: 83.33 g
H4 chondrite, shock stage S3, weathering grade W1
The find site is placed on the southern face of an ice rise at the southern limit of an extended N-S oriented veneer of rock fragments including some m-sized boulders resting on the ice surface (Delisle et al., 2015).
The meteorite is a brown stone partly covered by fusion crust that fell apart along cracks. Cut surfaces reveal a dark-grey metal-rich interior with minor oxidation. Rusty areas are confined to cracks. Chondrules (up to ~ 1.5 mm) with well-defined boundaries set into a recrystallized matrix have been observed in thin section. Some chondrules consisting of devitrified glass exhibit feathery textures. Twinned clinopyroxene grains are common. Shock metamorphic features comprising undulatory extinction of olivine and pyroxene, and the presence of planar fractures in olivine indicate that the meteorite is weakly shocked. Weathering effects are limonitic staining, minor oxide rims around metal and minor oxide veins.
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:
ⓘ Forsterite Formula: Mg2SiO4 Description: Average composition of olivine Fa18.6 Reference: Ruzicka, A., Grossman, J., Bouvier, A., Herd, C.D.K., and Agee, C.B. (2013) The Meteoritical Bulletin, No. 102, https://www.lpi.usra.edu/meteor/metbull.php?code=57673; Delisle, G., Brandstätter, F., and Koeberl, C. (2015) Meteorite concentration sites in Queen Maud Land, Antarctica - a first assessment. Annalen des Naturhistorischen Museums in Wien, Serie A, 117, 5-34. |
ⓘ 'Glass' Reference: Delisle, G., Brandstätter, F., and Koeberl, C. (2015) Meteorite concentration sites in Queen Maud Land, Antarctica - a first assessment. Annalen des Naturhistorischen Museums in Wien, Serie A, 117, 5-34. |
ⓘ 'Low-calcium pyroxene' Description: Average composition Wo0.8±0.2Fs16.5±0.3 Reference: Ruzicka, A., Grossman, J., Bouvier, A., Herd, C.D.K., and Agee, C.B. (2013) The Meteoritical Bulletin, No. 102, https://www.lpi.usra.edu/meteor/metbull.php?code=57673; Delisle, G., Brandstätter, F., and Koeberl, C. (2015) Meteorite concentration sites in Queen Maud Land, Antarctica - a first assessment. Annalen des Naturhistorischen Museums in Wien, Serie A, 117, 5-34. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 9 - Silicates | |||
---|---|---|---|
ⓘ | Forsterite | 9.AC.05 | Mg2SiO4 |
Unclassified Minerals, Rocks, etc. | |||
ⓘ | 'Glass' | - | |
ⓘ | 'Low-calcium pyroxene' | - |
List of minerals for each chemical element
O | Oxygen | |
---|---|---|
O | ⓘ Forsterite | Mg2SiO4 |
Mg | Magnesium | |
Mg | ⓘ Forsterite | Mg2SiO4 |
Si | Silicon | |
Si | ⓘ Forsterite | Mg2SiO4 |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Ruzicka, A., Grossman, J., Bouvier, A., Herd, C.D.K., and Agee, C.B. (2013) The Meteoritical Bulletin, No. 102; https://www.lpi.usra.edu/meteor/metbull.php?code=57673
Delisle, G., Brandstätter, F., and Koeberl, C. (2015) Meteorite concentration sites in Queen Maud Land, Antarctica - a first assessment. Annalen des Naturhistorischen Museums in Wien, Serie A, 117, 5-34.
Other Regions, Features and Areas containing this locality
Antarctic MeteoritesGroup of Meteorite Fall Locations
Antarctic PlateTectonic Plate
Antarctica
- Western Antarctica
- Transantarctic MountainsMountain Range
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