Lewis Cliff 86127 meteorite, Lewis Cliff, Buckley Island quadrangle, Transantarctic Mountains, Eastern Antarctica, Antarcticai
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
84° 15' 30'' South , 161° 25' 58'' East
Latitude & Longitude (decimal):
Locality type:
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
Other/historical names associated with this locality:
LEW 86127
Primitive Ordinary Chondrite (L3.3)
Found 1986; 80.5 g, 6 stones
A very small and weathered meteorite (11.9 g) was found as part of the US Antarctic Search for Meteorites program and labelled Lewis Cliff 86127. While weathering is significant, the meteorite consists primarily of light and dark chondrules and fragments within a darker, coherent matrix. Microprobe analyses revealed unequilibrated olivine and Ca-poor pyroxene with compositions of Fa2-26 and Fs2-17. Olivine and pyroxene are found in ~ 2:1 ratio. Varied chondrule types and small amounts of Fe-Ni metal and troilite were also present. Five additional unusually similar meteoritic stones were also found in the general vicinity and are often presumptively considered to be fragments of the same fall. The varied chondrule types include granular, porphyritic, and barred olivine (BO, PO), granular and porphyritic olivine-pyroxene (POP), and radiating and cryptocrystalline pyroxene (RP) types. The total range in olivine and pyroxene extends from Fa1-29 and Fs1-21 within the set. As is customary, when an entire group of previously labelled meteorite fragments is deemed to be a single meteorite the name of the earliest named specimen is applied to the entire group.
Meteoritic stones paired with Lew 86127 include Lew 86134, Lew 86144, Lew 86158, Lew 86207, Lew 86246. However, they have been variously classified as petrologic types L3.0, L3.2, L3.3, and L3.4. Indeed, Lew 86134 (28.9 g) is the most massive and the only member classified as petrologic type 3.0. The similarity and proximity of these 6 stones is certainly suggestive and, as weathered as they are, the hypothesis that they are fragments of a single fall is probably the best that we can do.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
2 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:
| ⓘ 'Fayalite-Forsterite Series' Reference: Grossman, J.N. (1994). The Meteoritical Bulletin, No. 76: Meteoritics, 29(1): 100-143. (Jan 1994). |
| ⓘ Forsterite Formula: Mg2SiO4 Description: Mg-rich forsterite, sensu strictu, present with Fayalite as low as 2 mol%. Reference: Grossman, J.N. (1994). The Meteoritical Bulletin, No. 76: Meteoritics, 29(1): 100-143. (Jan 1994). |
| ⓘ 'Limonite' Reference: Antarctic Meteorite Working Group (1988) Antarctic Meteorite Newsletter, vol 11, no.1. (Feb 1988). |
| ⓘ 'Meteoritic Iron' Reference: Antarctic Meteorite Working Group (1988) Antarctic Meteorite Newsletter, vol 11, no.1. (Feb 1988). |
| ⓘ 'Pyroxene Group' Formula: ADSi2O6 Reference: Grossman, J.N. (1994). The Meteoritical Bulletin, No. 76: Meteoritics, 29(1): 100-143. (Jan 1994). |
| ⓘ Troilite Formula: FeS Reference: Grossman, J.N. (1994). The Meteoritical Bulletin, No. 76: Meteoritics, 29(1): 100-143. (Jan 1994). |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Troilite | 2.CC.10 | FeS |
| Group 9 - Silicates | |||
| ⓘ | Forsterite | 9.AC.05 | Mg2SiO4 |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Fayalite-Forsterite Series' | - | |
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Meteoritic Iron' | - | |
| ⓘ | 'Pyroxene Group' | - | ADSi2O6 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Forsterite | Mg2SiO4 |
| O | ⓘ Pyroxene Group | ADSi2O6 |
| Mg | Magnesium | |
| Mg | ⓘ Forsterite | Mg2SiO4 |
| Si | Silicon | |
| Si | ⓘ Forsterite | Mg2SiO4 |
| Si | ⓘ Pyroxene Group | ADSi2O6 |
| S | Sulfur | |
| S | ⓘ Troilite | FeS |
| Fe | Iron | |
| Fe | ⓘ Troilite | FeS |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Antarctic Meteorite Working Group (1988) Antarctic Meteorite Newsletter, vol 11, no.1. (Feb 1988).
Grossman, J.N. (1994). The Meteoritical Bulletin, No. 76: Meteoritics, 29(1): 100-143. (Jan 1994).
Vernazza, P. et al. (2014) Multiple and Fast: The Accretion of Ordinary Chondrite Parent Bodies: Astrophysical Journal 791 (2): p. 120.
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 - MeteoriticalBulletinDatabase
http://curator.jsc.nasa.gov/antmet/amn/previous_newsletters/ANTARTIC_METERORITE_NEWSLETTER_VOL_11_NUMBER_1.pdf -AMN 11(1)
-LEW 86127@MetBullDatabase
http://www.lpi.usra.edu/meteor/metbull.php?code=13066 -LEW 86127@MetBullDatabase
http://www.lpi.usra.edu/meetings/LPSC99/pdf/13073.pdf -LEW 86134@MetBullDatabase
http://arxiv.org/pdf/1405.6850.pdf -Vernazza et al. (2014).
http://curator.jsc.nasa.gov/antmet/amn/previous_newsletters/ANTARTIC_METERORITE_NEWSLETTER_VOL_11_NUMBER_1.pdf -AMN 11(1)
-LEW 86127@MetBullDatabase
http://www.lpi.usra.edu/meteor/metbull.php?code=13066 -LEW 86127@MetBullDatabase
http://www.lpi.usra.edu/meetings/LPSC99/pdf/13073.pdf -LEW 86134@MetBullDatabase
http://arxiv.org/pdf/1405.6850.pdf -Vernazza et al. (2014).
Other Regions, Features and Areas containing this locality
Antarctic MeteoritesGroup of Meteorite Fall Locations
Antarctic PlateTectonic Plate
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
