header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 7 Nov 2019
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Ayagoz
Basic information Name: Ayagoz
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2018
Country: Kazakhstan
Mass:help 45.9 kg
Classification
  history:
Recommended:  Iron, IIIE    [explanation]

This is 1 of 14 approved meteorites (plus 1 unapproved name) classified as Iron, IIIE.   [show all]
Search for other: IIIE irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 22 Feb 2019
Writeuphelp
Writeup from MB 108:

Ayagoz        ~47°50’E, ~80°26’E

Semipalatinsk, Kazakhstan

Find: 2000

Classification: Iron meteorite (IIIE)

History: A large iron meteorite was found in prairie by a horse rider in 2000, ~12 km south of Ayagoz. A 38.9 kg piece and a 7 kg piece were brought to two different dealers by Jevgenijs Suhanovs in Ayagoz city. Samples from both pieces were analyzed to confirm they came from the same meteorite.

Physical characteristics: The main mass is covered with light-brown rust. Cut surface reveals a fresh metallic interior.

Petrography: Examination of etched sections reveals a coarse octahedrite structure (Og) with kamacite bandwidth 1.35±0.37 mm (N=15). Neumann bands are common. Kamacite displays epsilon-structure. Black plessite is common. Notable minerals include schreibersite (common), chromite, troilite, daubreelite.

Geochemistry: (M. D’Orazio, DST-PI): Composition of the metal (ICP-MS; D’Orazio and Folco, 2003) is Ni=8.79, Co=0.484 (both in wt%), Cu=113, Ga=17.6, Ge=35, As=4.9, Mo=7.1, Ru=5.4, Rh=1.57, Pd=3.4, Sn=0.07, Sb=0.15, Ir=0.30, Pt=6.7, Au=0.83 (all in ppm).

Classification: Iron (IIIE)

Specimens: Type specimen and two polished sections at CEREGE

Data from:
  MB108
  Table 0
  Line 0:
State/Prov/County:Semipalatinsk
Place of purchase:Ayagoz, Kazakhstan
Date:2000
Latitude:~47°50'E
Longitude:~80°26'E
Mass (g):45900
Pieces:1
Class:Iron, IIIE
Weathering grade:minimal
Classifier:J. Gattacceca, L. Krämer Ruggiu, CEREGE; M. d'Orazio, DST-PI
Type spec mass (g):36
Type spec location:CEREGE
Main mass:Jevgenijs Suhanovs
Comments:Submitted by Jerome Gattacceca
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
DST-PI: Dipartimento di Scienze della Terra, Università di Pisa, Via S. Maria 53, 56126 Pisa, Italy (institutional address; updated 17 Oct 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108, in preparation (2019)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Kazakhstan
Coordinates:
     Recommended::   (47° 50'N, 80° 26'E)

Statistics:
     This is 1 of 3 approved meteorites from Semipalatinsk, Kazakhstan (plus 1 impact crater)
     This is 1 of 20 approved meteorites from Kazakhstan (plus 4 impact craters)
Proximity search:
Find nearby meteorites: enter search radius (km):

Direct link to this page