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Moss
Basic information Name: Moss
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: Yes
Year fell: 2006
Country: Norway
Mass:help 3.76 kg
Classification
  history:
Meteoritical Bulletin:  MB 91  (2007)  CO3.6
Recommended:  CO3.6    [explanation]

This is 1 of 7 approved meteorites classified as CO3.6.   [show all]
Search for other: Carbonaceous chondrites (type 3), CM-CO clan chondrites, CO chondrites, and Carbonaceous chondrites
Comments: Approved 25 Sep 2006
Revised 10 Jan 2007: Final classification
Writeuphelp
Writeup from MB 91:

Moss                           ~59º26' N, ~10º42' E

Østfold, Norway

Fell July 14, 2006, ~10:20 hrs local daylight time (UT+2)

Carbonaceous chondrite (CO3.6)

 

History and physical characteristics: (G. Raade and K. Ødegaard, UOslo; M. Bilet, NorAS) At about 10:20 am on July 14, 2006, a bright fireball traveling SSE-NNW was witnessed by many people and a loud explosion and a rumbling sound was heard in the air above Moss and Rygge in south Norway, on the east side of the Oslofjord. Shortly after, a small meteorite was heard to land on an aluminum sheet and was recovered. Extensive searches in the area have resulted in the recovery of a total of 5 stones (Table 6).  Note that light rainfall occurred in the area on July 29, 30, and 31.

 

Table 6: Stones recovered from the Moss fall.

 

No.

Date (2006)

Latitude (N)

Longitude (E)

Mass (g)

Owner

Comments

1

14 July

59º24.463'

10º45.548'

36.7

K. J Røed Ødegaard

Complete stone + some fragments.

2

17 July

59º25.908'

10º41.778'

752

UOslo

Complete; hit tree, landed in grass; angular shape.

3

23 July

~59º26'

~10º42'

~1500

M-S-T

Half stone + fragments; hit fence and shattered.

4

30 July

59º27.005'

10º41.482'

~800

Farmer,

M. Bilet

Many pieces; hit concrete in industrial area.

5

3 Aug

59º26.394'

10º42.032'

676

UOslo

Complete stone; penetrated roof of building; angular shape.

M-S-T: Mass divided between Michael Mazur, Bjørn Sørheim, and Eric Twelker.

 

Petrography: (J. Grossman, USGS; G. MacPherson, SI; L. Chizmadia, UHaw; A. Rubin, UCLA): Contains abundant small chondrules (most < 200 μm), small (<1 mm) amoeboid olivine aggregates (AOAs) and refractory inclusions, and isolated grains of olivine, troilite, and kamacite set in a gray matrix.  Chondrule types are dominated by type-I PO, with other varieties of type I and II chondrules plus RP, C, and BO all present.  All type I chondrules show diffusional entry of FeO around edges and along cracks of forsterite grains. Olivine histogram is flat, resembling that of Ornans (range Fa0.3–42, average Fa19.9, σ=65%, n=60); Cr2O3 content of fayalitic olivine is low (0.09±0.09 wt%).  Image analysis gives 2.2 vol% metal and 2.4 vol% FeS.  Refractory inclusions contain spinel, calcic pyroxene, and abundant nepheline that replaces melilite and other primary phases; some perovskite has been transformed to ilmenite. Some AOAs contain relict cores of forsterite, but most of the olivine has been converted to more fayalitic compositions; degree of oxidation of AOAs is similar to type 3.6 CO chondrites such as ALH 77003. Matrix is mildly recrystallized and sulfur-poor; matrix olivine has similar composition to olivine in fine-grained chondrules and inclusions.

Geochemistry: Magnetic susceptibility (R. Bartoschewitz), log χ (10-9 mkg-1) = 4.68. Oxygen isotopes (I. Franchi and R. Greenwood, OU), average of two replicates, δ17O = ‑5.90‰, δ18O = ‑2.21‰, Δ17O = ‑4.75‰.

Classification: Carbonaceous chondrite (CO3.6, scheme of Chizmadia et al., 2002); shock stage S2. 

Specimens: Type specimens of 20 g (stone 4) and 2 g (stone 3) are on deposit at SI. Main masses are held by those listed above.

Plots: O isotopes:  
Institutions
   and collections
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)
SI: Department of Mineral Sciences, NHB-119, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, United States; Website (institutional address; updated 16 Jan 2012)
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
UOslo: Natural Science Museum, University of Oslo, 1172 - Blindern, 0318 Oslo, Norway (institutional address; updated 16 Oct 2011)
Farmer: Michael Farmer, P.O. Box 86059, Tucson, AZ 85754-6059, United States; Website (private address)
NorAS: Norwegian Astronomical Society, Norway (institutional address)
Twelker: Eric Twelker, P.O. Box 33873, Juneau, AK 99803, United States; Website (private address)
UHaw: Hawai'i Institute of Geophysics and Planetology, School of Ocean and Earth Science and Technology, University of Hawai'i, 2525 Correa Road, Honolulu, HI 96822, United States (institutional address; updated 25 Oct 2011)
USGS: US Geological Survey, 954 National Center, Reston, VA 20192, United States (institutional address)
Catalogs:
Search for specimens in the Smithsonian Institution collection (U.S.):   
    Require SI photo
References: Published in Meteoritical Bulletin, no. 91, MAPS 42, 413-466 (2007)
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
752g stone. Morten Bilet   
Chladni’s Heirs   
Morten Bilet      
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
André Knöfel   
AstroGeo         
Dominik Stoeckli   
Él Cuarzo   
Gerald Armstrong   
Gregor H.   
Mark Vornhusen   
MeteoriteCollector.org - FCOM - Russ Finney   
METEORITES AUSTRALIA   
METEORITICON   
Michael S. Scherman   
Mirko Graul      
Nebulae   
Peter Marmet   
Robert Zdancewicz      
Roman Jirasek   
Woreczko Jan & Wadi         
Geography:

Norway
Coordinates:
     Recommended::   (59° 26'N, 10° 42'E)

Statistics:
     This is the only approved meteorite from Ostfold, Norway
     This is 1 of 13 approved meteorites from Norway (plus 3 impact craters)
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