Lewis Cliff 87009 meteorite, Lewis Cliff, Buckley Island quadrangle, Transantarctic Mountains, Eastern Antarctica, Antarcticai
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Latitude & Longitude (WGS84):
84° 21' 24'' South , 161° 17' 29'' East
Latitude & Longitude (decimal):
Locality type:
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
Other/historical names associated with this locality:
LEW 87009
Carbonaceous chondrite (CK6; S3; W1)
Find, 1982; 50.5 g
A single stone, still largely covered by its fusion crust was recovered. The hand specimen has no obvious chondrules or clasts. The matrix lacks chondritic structure and is mostly a coarse-grained aggregate of olivine (Fa31), pyroxene (Fs12Wo44) with minor plagioclase (An44-48). Minor opaques are mostly 10-30 µm blebs of magnetite with lesser, trace amounts of pentlandite and pyrite. Glassy veins are indicative of pre-terrestrial, but post-formational shock.
The CK (Karoonda-like) carbonaceous chondrites are one of 8 currently recognized carbonaceous chondrite groups. CK chondrites are distinguished by abundant fine-grained matrix, mm-sized chondrules, occasional refractory inclusions, and a high degree of oxidation. Like LEW 87009, most CK chondrites have been metamorphosed to type 4 or higher.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
4 valid minerals.
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:
ⓘ Augite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 Description: Augite (Fs12Wo44) is the only pyroxene reported in the brief AMN & Atlas of Meteorites descriptions. Reference: Schwarz, C. & Mason, B. (1988) New Meteorites: Antarctic Meteorite Newsletter 11 (2): page 31. (Aug 1988) |
ⓘ 'Fayalite-Forsterite Series' Description: Olivine Composition Fa31. Reference: Schwarz, C. & Mason, B. (1988) New Meteorites: Antarctic Meteorite Newsletter 11 (2): page 31. (Aug 1988); Grady, M. M., Pratesi, G. & Moggi Cecchi, V. (2015) Atlas of Meteorites. Cambridge University Press: Cambridge, United Kingdom. 373 pages. |
ⓘ 'Glass' Reference: Schwarz, C. & Mason, B. (1988) New Meteorites: Antarctic Meteorite Newsletter 11 (2): page 31. (Aug 1988) |
ⓘ Magnetite Formula: Fe2+Fe3+2O4 Reference: Schwarz, C. & Mason, B. (1988) New Meteorites: Antarctic Meteorite Newsletter 11 (2): page 31. (Aug 1988); Grady, M. M., Pratesi, G. & Moggi Cecchi, V. (2015) Atlas of Meteorites. Cambridge University Press: Cambridge, United Kingdom. 373 pages. |
ⓘ Pentlandite Formula: (NixFey)Σ9S8 Reference: Grady, M. M., Pratesi, G. & Moggi Cecchi, V. (2015) Atlas of Meteorites. Cambridge University Press: Cambridge, United Kingdom. 373 pages. |
ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 Description: Albitic plagioclase (An44-48) [Andesine] is only a minor component. Reference: Schwarz, C. & Mason, B. (1988) New Meteorites: Antarctic Meteorite Newsletter 11 (2): page 31. (Aug 1988); Grady, M. M., Pratesi, G. & Moggi Cecchi, V. (2015) Atlas of Meteorites. Cambridge University Press: Cambridge, United Kingdom. 373 pages. |
ⓘ Pyrite Formula: FeS2 Reference: Grady, M. M., Pratesi, G. & Moggi Cecchi, V. (2015) Atlas of Meteorites. Cambridge University Press: Cambridge, United Kingdom. 373 pages. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
ⓘ | Pentlandite | 2.BB.15 | (NixFey)Σ9S8 |
ⓘ | Pyrite | 2.EB.05a | FeS2 |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
Group 9 - Silicates | |||
ⓘ | Augite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Unclassified Minerals, Rocks, etc. | |||
ⓘ | 'Fayalite-Forsterite Series' | - | |
ⓘ | 'Glass' | - | |
ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
List of minerals for each chemical element
O | Oxygen | |
---|---|---|
O | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
O | ⓘ Magnetite | Fe2+Fe23+O4 |
O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Na | Sodium | |
Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Mg | Magnesium | |
Mg | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Al | Aluminium | |
Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Si | Silicon | |
Si | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
S | Sulfur | |
S | ⓘ Pentlandite | (NixFey)Σ9S8 |
S | ⓘ Pyrite | FeS2 |
Ca | Calcium | |
Ca | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Fe | Iron | |
Fe | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
Fe | ⓘ Pentlandite | (NixFey)Σ9S8 |
Fe | ⓘ Pyrite | FeS2 |
Ni | Nickel | |
Ni | ⓘ Pentlandite | (NixFey)Σ9S8 |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Schwarz, C. & Mason, B. (1988) New Meteorites: Antarctic Meteorite Newsletter 11 (2): page 31. (Aug 1988)
Grady, M. M., Pratesi, G. & Moggi Cecchi, V. (2015) Atlas of Meteorites. Cambridge University Press: Cambridge, United Kingdom. 373 pages.
External Links
http://www.lpi.usra.edu/meteor/metbull.php - MetBulletinDatabase
http://www.lpi.usra.edu/meteor/metbull.php?sea=Lewis+Cliff+87009&sfor=names&ants=&falls=&valids=&stype=contains&lrec=50&map=ge&browse=&country=All&srt=name&categ=CK+chondrites&mblist=All&rect=&phot=&snew=0&pnt=Normal%20table&code=13484 - LEW87009@MetBulletinDatabase
http://www.lpi.usra.edu/meteor/metbull.php?sea=Lewis+Cliff+87009&sfor=names&ants=&falls=&valids=&stype=contains&lrec=50&map=ge&browse=&country=All&srt=name&categ=CK+chondrites&mblist=All&rect=&phot=&snew=0&pnt=Normal%20table&code=13484 - LEW87009@MetBulletinDatabase
Other Regions, Features and Areas containing this locality
Antarctic MeteoritesGroup of Meteorite Fall Locations
Antarctic PlateTectonic Plate
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