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Aletai meteorite, Aletai Prefecture (Altay Prefecture), Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture), Xinjiang Autonomous Region, China

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Latitude & Longitude (WGS84): 45° 52' 15'' North , 90° 30' 16'' East
Latitude & Longitude (decimal): 45.87111,90.50472
GeoHash:G#: y00kgqxd8
Locality type:Meteorite Fall Location
Meteorite Class:Anomalous IIIE iron meteorite
Meteoritical Society Class:Iron, IIIE-an
Metbull:View entry in Meteoritical Bulletin Database
Köppen climate type:BWk : Cold desert climate
Other/historical names associated with this locality:Akebulake; Ulasitai; Wuxilike; Xinjiang (b); Xingjiang 008

Iron meteorite (fragment), octahedrite (IIIE; Om)
Discovered in 2004; mass of 430 kg

The Ulasitai meteoritical mass consists mainly of kamacite (76 vol%) accompanied by taenite (10 vol%) and plessite (~10 vol%). Schreibersite is the most abundant of the minor phases which also include troilite, cohenite, and daubréelite. Ulasitai is a fragment of the enormous 20 ton Xinjiang (Armanty) iron which had been previously discovered about 130 km away. Both the larger mass and the Ulasitai mass are marked by very distinctive siderophile abundances making Xinjiang (Armanty) members of the very small group of IIIE irons with only 15 members

At the official website for the Meteoritical Society, the name "Ulasitai meteorite" was discredited as a proper (unique) name once Ulasitai was shown to be paired with the Xinjiang (Armanty) iron meteorite. Cf. Meteoritical Bulletin, No. 95 (2009). There appears to be a preference for the name 'Xinjiang' in the Chinese literature, but the name 'Armanty' was adapted in Western scientific literature so that both synonyms appear in the literature today.

Mineral List

6 valid minerals.

Meteorite/Rock Types Recorded

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Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Devonian - Cambrian
358.9 - 541 Ma

ID: 3185436
Paleozoic sedimentary rocks

Age: Paleozoic (358.9 - 541 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

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.


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Connolly Jr, H. C., et al. (2006). The Meteoritical Bulletin, No. 90, 2006 September. Meteoritics & Planetary Science 41 (9): 1383-1418. (Sept 2006).
Lin Xu, Bingkui Miao, Yangting Lin, and Ziyuan Ouyang (2008): Ulasitai: A new iron meteorite likely paired with Armanty (IIIE). Meteoritics & Planetary Science 43(8), 1263-1273.

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