| MetSoc Home Publications Contacts |
|
||
|
||
| Wad al Fayda 001 | |||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic information | Name: Wad al Fayda 001 This is an OFFICIAL meteorite name. Abbreviation: WaF 001 Observed fall: No Year found: 2020 Country: Western Sahara Mass:  1463 g | ||||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 187 approved meteorites classified as CR2. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and CR chondrites | ||||||||||||||||||||||||||||||||||||||||
| Comments: | Approved 8 Apr 2021 | ||||||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 110:
Wad al Fayda 001 (WaF 001) 24°41.635’N , 12°58.270’W Rio de Oro, Western Sahara Find: 2018 Classification: Carbonaceous chondrite (CR2) History: Two samples that fit together were found by Lahsen Oussalah in the region between Guelta Zemour and Oum Dreyga (~72 km NE), Western Sahara, in 2018. Jean Redelsperger purchase the samples from Mohamed El Guirah in Zagora in 2020. A third sample weighing 507 g was purchased subsequent to this reporting. Physical characteristics: Samples are dark-brown in color, irregularly shaped, and have a wind-blown exterior. Some chondrules are visible on the surface. The cut face shows abundant metal decorated chondrules in a brown, fine-grained matrix. Petrography: Classification and description (A. Love, App) Sample shows chondritic texture composed of abundant metal-decorated chondrules with igneous rims showing average apparent diameter of 571 µm (n=156) and rare CAIs and AOAs set within a hydrated matrix with abundant framboidal magnetite. Type I chondrules are dominant. Additional minerals are: troilite, rare Ca-armalcolite, trace chromite and phosphates. Geochemistry: (A. Love, App) Olivine (type I: Fa2.3±1.3, Cr2O3=0.5±0.2, Fe/Mn=38.3±50.0, n=20, type II: Fa19.2±10.5, Fe/Mn=60.0±27.6, n=7), low Ca pyroxene (Fs6.8±8.0Wo1.1±0.9, Fe/Mn=22.4±13.4, n=21). Matrix with low analytical totals (81.0±5.2 Wt%, n=14). Classification: Carbonaceous chondrite (CR2). Based on presence of metal decorated chondrules, hydrated matrix with abundant framboidal magnetite and rare CAIs, this sample is a CR2. Specimens: Jean Redelsperger holds the main masses. Two fragments weighing 21.12 g and polished mount are on deposit at App. | ||||||||||||||||||||||||||||||||||||||||
| Data from: MB110 Table 0 Line 0: |
|
||||||||||||||||||||||||||||||||||||||||
| Institutions and collections |
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013) |
||||||||||||||||||||||||||||||||||||||||
| Catalogs: |
| ||||||||||||||||||||||||||||||||||||||||
| References: | Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
| ||||||||||||||||||||||||||||||||||||||||
| Photos: |
| ||||||||||||||||||||||||||||||||||||||||
Geography:
|
Statistics: This is 1 of 50 approved meteorites from Rio de Oro, Western Sahara This is 1 of 270 approved meteorites from Western Sahara (plus 20 unapproved names) | ||||||||||||||||||||||||||||||||||||||||
| Proximity search: | |||||||||||||||||||||||||||||||||||||||||