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Navajo meteorite, Padres Mesa, Apache Co., Arizona, USAi
Regional Level Types
Navajo meteoriteMeteorite Fall Location
Padres MesaMesa
Apache Co.County
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
35° 19' 59'' North , 109° 30' 0'' West
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
Nearest Settlements:
PlacePopulationDistance
Wide Ruins176 (2011)9.6km
Klagetoh242 (2011)18.9km
Sanders630 (2011)19.9km
Houck1,024 (2011)27.2km
Greasewood547 (2011)38.6km


Iron meteorite, octahedrite (IIAB, Ogg)
Found, 1921; 2.18 tons, 2 masses

Two masses of Fe-Ni metal (~5.5%) were found 48 meters apart 2.5 km (1.6 miles) N of Padres Mesa (summit), buried in talus and sandy outwash over a period of 5 years. Indian beads and an upright marker indicated that local inhabitants had been well aware of the two masses. The coarse octahedral structure is unusual for a meteorite with only 5.5% Ni as most irons with such a low percentage of nickel are hexahedrites. The metal is accompanied by minor amounts of schreibersite, troilite, cohenite, daubréelite, and weathering products.

Navajo is the 3rd most massive of the 123 known IIAB irons — a relatively large iron group constituting ~11% of all recovered irons. Almost all of the two large pieces (1,497 kg; 683 kg) are held in Chicago's Field Museum.

Regions containing this locality

North America PlateTectonic Plate
Colorado Plateau, USAPlateau
Navajo Nation Indian Reservation, USAReservation
Hopi-Navajo Indian Reservations, Colorado Plateau, Apache & Navajo Cos., Arizona, USA

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


6 valid minerals.

Meteorite/Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Cohenite
Formula: Fe3C
Description: As continuous rims around some schreibersite crystals,
Reference: Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
Daubréelite
Formula: Fe2+Cr3+2S4
Reference: Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
Iron
Formula: Fe
Reference: Merrill, G.P. (1927 ) On Newly Discovered Meteoric Irons from the Wallapai (Hualapai) Indian Reservation, Arizona. Proc. U. S. Natl. Mus. 72 (2718): 1-4 w. 3 plates.; Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
Iron var: Kamacite
Formula: (Fe,Ni)
Reference: Merrill, G.P. (1927 ) On Newly Discovered Meteoric Irons from the Wallapai (Hualapai) Indian Reservation, Arizona. Proc. U. S. Natl. Mus. 72 (2718): 1-4 w. 3 plates.; Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
Schreibersite
Formula: (Fe,Ni)3P
Description: Monocrystalline, but somewhat brecciated.
Reference: Merrill, G.P. (1927 ) On Newly Discovered Meteoric Irons from the Wallapai (Hualapai) Indian Reservation, Arizona. Proc. U. S. Natl. Mus. 72 (2718): 1-4 w. 3 plates.; Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
Taenite
Formula: (Fe,Ni)
Reference: Merrill, G.P. (1927 ) On Newly Discovered Meteoric Irons from the Wallapai (Hualapai) Indian Reservation, Arizona. Proc. U. S. Natl. Mus. 72 (2718): 1-4 w. 3 plates.
Troilite
Formula: FeS
Description: Apparently present in very sparse amounts.
Reference: Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Cohenite1.BA.05Fe3C
Iron1.AE.05Fe
var: Kamacite1.AE.05(Fe,Ni)
Schreibersite1.BD.05(Fe,Ni)3P
Taenite1.AE.10(Fe,Ni)
Group 2 - Sulphides and Sulfosalts
Daubréelite2.DA.05Fe2+Cr3+2S4
Troilite2.CC.10FeS

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Cohenite1.1.16.1Fe3C
Iron
var: Kamacite
1.1.11.1(Fe,Ni)
Schreibersite1.1.21.2(Fe,Ni)3P
Taenite1.1.11.2(Fe,Ni)
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Troilite2.8.9.1FeS
AmBnXp, with (m+n):p = 3:4
Daubréelite2.10.1.11Fe2+Cr3+2S4
Unclassified Minerals, Mixtures, etc.
Iron-Fe

List of minerals for each chemical element

CCarbon
C CoheniteFe3C
PPhosphorus
P Schreibersite(Fe,Ni)3P
SSulfur
S DaubréeliteFe2+Cr23+S4
S TroiliteFeS
CrChromium
Cr DaubréeliteFe2+Cr23+S4
FeIron
Fe Iron (var: Kamacite)(Fe,Ni)
Fe Schreibersite(Fe,Ni)3P
Fe Taenite(Fe,Ni)
Fe CoheniteFe3C
Fe DaubréeliteFe2+Cr23+S4
Fe TroiliteFeS
Fe IronFe
NiNickel
Ni Iron (var: Kamacite)(Fe,Ni)
Ni Schreibersite(Fe,Ni)3P
Ni Taenite(Fe,Ni)

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

Gelasian - Burdigalian
1.806 - 20.44 Ma



ID: 2780990
Pliocene to middle Miocene deposits

Age: Cenozoic (1.806 - 20.44 Ma)

Description: Moderately to strongly consolidated conglomerate and sandstone deposited in basins during and after late Tertiary faulting. Includes lesser amounts of mudstone, siltstone, limestone, and gypsum. These deposits are generally light gray or tan. They commonly form high rounded hills and ridges in modern basins, and locally form prominent bluffs. Deposits of this unit are widely exposed in the dissected basins of southeastern and central Arizona. (2-16 Ma)

Comments: In dissected basins of southeast and central Arizona Original map source: Arizona Geological Survey, DI-8 Geologic Map of Arizona, Digital Spatial data for the Geologic Map of Arizona, v. 3.0, edited by S.M. Richard and S.M. Kneale, 2002, 10 p., 2 DOS HD disks. Arc/INFO export file (.e00) format, scale 1:1,000,000.

Lithology: Major:{conglomerate,sandstone}, Minor:{mudstone,siltstone,limestone,gypsum}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Pliocene
2.588 - 5.333 Ma



ID: 3187166
Cenozoic sedimentary rocks

Age: Pliocene (2.588 - 5.333 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

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Merrill, G.P. (1927 ) On Newly Discovered Meteoric Irons from the Wallapai (Hualapai) Indian Reservation, Arizona. Proc. U. S. Natl. Mus. 72 (2718): 1-4 w. 3 plates.
Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
Grady, M. M. (2000) Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge, New York, Oakleigh, Madrid, Cape Town. 690 pages.

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