Obernkirchen meteorite, Rinteln, Lower Saxony, Germany
|Latitude & Longitude (WGS84):||52° 16' North , 9° 6' East|
|Latitude & Longitude (decimal):||52.2666666667, 9.1|
|Name(s) in local language(s):||, Niedersachsen, Deutschland|
Octahedrite (IVA, Of)
Find 1863, 41 kg
A large iron-rich mass found in a quarry 5 meters below the surface was eventually recognized as meteoritic. Indeed, the weathered Widmanstätten signature of its octahedral structure had been somewhat amplified by preferential weathering which left prominent taenite features in some regions. Previously partially or completely remelted troilite occurs in nodules. Schreibersite appears to be sparse. Buchwald (1975) did not observe schreibersite, but Cohen and, much later, Ramdohr (1973) recorded its presence.
The 79 IVA irons listed at The Meteoritical Society's 'Meteoritical Database' represent ~7% of all recovered irons. Almost all of the Obernkirchen mass was acquired by the British Museum in London.
5 valid minerals.
This 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 data will improve over time as more accurate maps and data sets are added.
|Jurassic145 - 201.3 Ma||Jurassic sedimentary rocks|
References for regional geology:
Data provided by Macrostrat.org
Geological Survey of Canada. Generalized geological map of the world and linked databases. doi:10.4095/195142. Open File 2915d.
Ramdohr, P. (1973) The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.
Buchwald, V. F. (1975). Handbook of Iron Meteorites: Their History, Distribution, Composition and Structure (3 Vol.). Univ. of California Press: Berkley. 1418 pages
Grady, M. M. (2000). Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge; New York; Oakleigh; Madrid; Cape Town. 689 pages.