| MetSoc Home Publications Contacts |
|
||
|
||
| Frontier Mountain 93001 | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic information | Name: Frontier Mountain 93001 This is an OFFICIAL meteorite name. Abbreviation: FRO 93001 Observed fall: No Year found: 1993 Country: Antarctica [Collected jointly by EUROMET and PNRA] Mass:  4.86 g | ||||||||||||||||
| Classification history: |
This is 1 of 11 approved meteorites classified as Acapulcoite/Lodranite. [show all] Search for other: Acapulcoite-lodranite family, Primitive achondrites | ||||||||||||||||
| Writeup |
Writeup from MB 89:
Frontier Mountain 93001 Antarctica Found 1994 January 4 Primitive achondrite (Acapulcoite-Lodranite) This 4.84 g small stone is a ~16 x 13 x 12 mm, angular, 20% fusion crusted fragment found by a PNRA/EUROMET team. Mineralogy and classification (A. Burroni and L. Folco): FRO 93001 is a medium- to coarse-grained, gabbroic rock consisting of (in order of abundance) orthoenstatite (Fs13.3±0.4 Wo3.1±0.2), oligoclase (Ab80.5±3.3 Or3.2±0.6), augite (Fs6.1±0.7 Wo42.3±0.9) and traces of olivine (Fa13.3±0.3; [Mn/Mg] = 0.006). Corroded xenoliths of probable lodranitic composition float in the gabbroic host lithology; they mainly include granoblastic olivine Fo90.4±0.7 with average grain size of 400 μm, lesser Fe,Ni metal, and minor chromite (Cr/(Cr+Al) = 0.84; Fe/(Fe+Mg) = 0.64), phosphates, schreibersite, and troilite. The rock (including xenoliths) is devoid of shock features (shock stage S1) and nearly unweathered (weathering degree, W1). FRO 93001 is similar to the igneous lithology, that intrudes an acapulcoite host in the Lewis Cliff (LEW) 86220 meteorite described by McCoy et al. (1997). Specimens: main mass, 2.57 g, two thin sections, MNA-SI; one thin section, NHM, type specimen, 1.60 g, OU. | ||||||||||||||||
| Data from: MB89 Table 3 Line 8: |
|
||||||||||||||||
| Institutions and collections |
CEREGE: CEREGE
BP 80
Avenue Philibert, Technopole de l'Arbois
13545 Aix-en-Provence Cedex 4
France, France (institutional address; updated 10 Jun 2023) MNA-SI: Museo Nazionale dell'Antartide, Università di Siena, Via Laterina 8, I-53100 Siena, Italy; Website (institutional address; updated 13 Dec 2011) NHM: Department of Mineralogy, The Natural History Museum, Cromwell Road, London SW7 5BD, United Kingdom; Website (institutional address; updated 9 Dec 2011) OU: Planetary and Space Sciences Department of Physical Sciences The Open University Walton Hall Milton Keynes MK7 6AA United Kingdom, United Kingdom (institutional address; updated 8 Dec 2011) |
||||||||||||||||
| Catalogs: |
| ||||||||||||||||
| References: | Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
| ||||||||||||||||
Geography:
|
Statistics: This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||
| Proximity search: | |||||||||||||||||
| Crosslinks: |
This lists all records that are linked to this record and to each other.
| ||||||||||||||||
| Also see: |
This lists the most popular meteorites among people who looked up this meteorite.
| ||||||||||||||||
| Revision history: |
This lists important revisions made to data for this record.
| ||||||||||||||||