Latitude & Longitude (WGS84):	26° 6' North , 106° 58' West
Latitude & Longitude (decimal):	26.10000,-106.96667
GeoHash:	G#: 9seumzm78
Locality type:	Meteorite Fall Location
Meteorite Class:	IIAB iron meteorite
Meteoritical Society Class:	Iron, IIAB
Metbull:	View entry in Meteoritical Bulletin Database
Köppen climate type:	Csb : Warm-summer Mediterranean climate

Iron meteorite, hexahedrite (IIAB,hex)
Find, 1971; 58.3 kg, single mass

An iron meteorite (5.3% Ni) of 58.63 kg was found next to a road in a mountainous region 0.5 km south of Guadalupe y Calvo. The meteorite is predominantly kamacite, but opaques are visible on section surfaces. Several kilogram or near kilogram specimens of this meteorite are held by research institutions, but pertinent published literature with a mineralogical focus in English seems to be quite sparse.

Guadalupe y Calvo is one of of 124 IIAB iron meteorites currently listed with the Meteoritical Bulletin Database (as of early September 2015). Three IIAB Irons have been recovered from Chihuahua, Mexico. The other two — 2.1 ton Coahuila and 36 kg El Burro— have distinctly different trace element profiles.

Mineral List

1 valid mineral.

Meteorite/Rock Types Recorded

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

Neogene 2.588 - 23.03 Ma ID: 2430274	Age: Neogene (2.588 - 23.03 Ma) Lithology: Acidic igneous extrusive Reference: Instituto Nacional de Estadística, Geografía e Informática. Conjunto de Datos Vectoriales Geológicos. Continuo Nacional. Escala 1:1’000,000. [63]
Miocene - Oligocene 5.333 - 33.9 Ma ID: 3184329	Cenozoic volcanic rocks Age: Cenozoic (5.333 - 33.9 Ma) Comments: Sierra Madre Occidental Lithology: Ignimbrite(s); felsic volcanic 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

References

External Links