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Mount Morris (Wisconsin) meteorite, Waushara Co., Wisconsin, USAi
Regional Level Types
Mount Morris (Wisconsin) meteoriteMeteorite Fall Location
Waushara Co.County
WisconsinState
USACountry

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Latitude & Longitude (WGS84): 44° 0' North , 89° 15' West
Latitude & Longitude (decimal): 44.00000,-89.25000
GeoHash:G#: dpbd31fns
Locality type:Meteorite Fall Location
Meteorite Class:Anomalous IAB iron meteorite
Meteoritical Society Class:Iron, IAB-an
Metbull:View entry in Meteoritical Bulletin Database
Köppen climate type:Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Neshkoro423 (2017)4.6km
Silver Lake2,480 (2017)6.4km
Dakota1,207 (2017)8.6km
Wautoma2,136 (2017)8.8km
Lohrville383 (2017)11.4km


Iron meteorite (IAB-an) 676 g
Find, 1937

Three oxidized fragments of unknown history are preserved. This is an iron meteorite which contains abundant troilite, daubréelite and some very reduced silicates. It has been previously classified as a Winonaite. Clearly,mentally disentangling the pre-terrestrial state of this particular meteorite from its current physical state has its own share of difficulties.


The proper name of the meteorite is "Mount Morris (Wisconsin)" which distinguishes it from the "Mount Morris (New York)" chondritic meteorite found in New York in 1897.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


11 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:

Albite
Formula: Na(AlSi3O8)
Reference: Meteoritics (ISSN 0026-1114), vol. 23, Dec. 1988, p. 349-352.
Chalcopyrite
Formula: CuFeS2
Reference: www.uwrf.edu/~wc01/meteorite.html
Chromite
Formula: Fe2+Cr3+2O4
Reference: www.uwrf.edu/~wc01/meteorite.html ; Meteoritics (ISSN 0026-1114), vol. 23, Dec. 1988, p. 349-352.
Daubréelite
Formula: Fe2+Cr3+2S4
Reference: www.uwrf.edu/~wc01/meteorite.html
Diopside
Formula: CaMgSi2O6
Reference: Meteoritics (ISSN 0026-1114), vol. 23, Dec. 1988, p. 349-352.
Enstatite
Formula: MgSiO3
Reference: www.uwrf.edu/~wc01/meteorite.html ; Meteoritics (ISSN 0026-1114), vol. 23, Dec. 1988, p. 349-352.
Forsterite
Formula: Mg2SiO4
Reference: www.uwrf.edu/~wc01/meteorite.html ; Meteoritics (ISSN 0026-1114), vol. 23, Dec. 1988, p. 349-352.
Graphite
Formula: C
Reference: www.uwrf.edu/~wc01/meteorite.html
Iron
Formula: Fe
Reference: www.uwrf.edu/~wc01/meteorite.html ; Meteoritics (ISSN 0026-1114), vol. 23, Dec. 1988, p. 349-352.
Iron var: Kamacite
Formula: (Fe,Ni)
Reference: www.uwrf.edu/~wc01/meteorite.html ; Meteoritics (ISSN 0026-1114), vol. 23, Dec. 1988, p. 349-352.
Schreibersite
Formula: (Fe,Ni)3P
Reference: www.uwrf.edu/~wc01/meteorite.html ; Meteoritics (ISSN 0026-1114), vol. 23, Dec. 1988, p. 349-352.
Troilite
Formula: FeS
Reference: www.uwrf.edu/~wc01/meteorite.html ; Meteoritics (ISSN 0026-1114), vol. 23, Dec. 1988, p. 349-352.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Graphite1.CB.05aC
Iron1.AE.05Fe
var: Kamacite1.AE.05(Fe,Ni)
Schreibersite1.BD.05(Fe,Ni)3P
Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Daubréelite2.DA.05Fe2+Cr3+2S4
Troilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
Diopside9.DA.15CaMgSi2O6
Enstatite9.DA.05MgSiO3
Forsterite9.AC.05Mg2SiO4

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Iron
var: Kamacite
1.1.11.1(Fe,Ni)
Schreibersite1.1.21.2(Fe,Ni)3P
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Troilite2.8.9.1FeS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 3:4
Daubréelite2.10.1.11Fe2+Cr3+2S4
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Forsterite51.3.1.2Mg2SiO4
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Enstatite65.1.2.1MgSiO3
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
Iron-Fe

List of minerals for each chemical element

CCarbon
C GraphiteC
OOxygen
O ForsteriteMg2SiO4
O EnstatiteMgSiO3
O ChromiteFe2+Cr23+O4
O AlbiteNa(AlSi3O8)
O DiopsideCaMgSi2O6
NaSodium
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg ForsteriteMg2SiO4
Mg EnstatiteMgSiO3
Mg DiopsideCaMgSi2O6
AlAluminium
Al AlbiteNa(AlSi3O8)
SiSilicon
Si ForsteriteMg2SiO4
Si EnstatiteMgSiO3
Si AlbiteNa(AlSi3O8)
Si DiopsideCaMgSi2O6
PPhosphorus
P Schreibersite(Fe,Ni)3P
SSulfur
S TroiliteFeS
S DaubréeliteFe2+Cr23+S4
S ChalcopyriteCuFeS2
CaCalcium
Ca DiopsideCaMgSi2O6
CrChromium
Cr ChromiteFe2+Cr23+O4
Cr DaubréeliteFe2+Cr23+S4
FeIron
Fe Iron (var: Kamacite)(Fe,Ni)
Fe Schreibersite(Fe,Ni)3P
Fe TroiliteFeS
Fe ChromiteFe2+Cr23+O4
Fe DaubréeliteFe2+Cr23+S4
Fe ChalcopyriteCuFeS2
Fe IronFe
NiNickel
Ni Iron (var: Kamacite)(Fe,Ni)
Ni Schreibersite(Fe,Ni)3P
CuCopper
Cu ChalcopyriteCuFeS2

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

Paleozoic
251.902 - 541 Ma



ID: 3187973
Paleozoic sedimentary rocks

Age: Phanerozoic (251.902 - 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]

Cambrian
485.4 - 541 Ma



ID: 2985493
Cambrian, undivided

Age: Cambrian (485.4 - 541 Ma)

Stratigraphic Name: Trempealeau Formation; Tunnel City Formation; Elk Mound Formation

Description: Sandstone with some dolomite and shale, undivided; includes Trempealeau, Tunnel City, and Elk Mound Formations

Comments: Original map source: Cannon, W.F., Kress, T.H., Sutphin, D.M., Morey, G.B., Meints, Joyce, and Barber-Delach, Robert, 1997, Digital Geologic Map and mineral deposits of the Lake Superior Region, Minnesota, Wisconsin, Michigan: USGS Open-File Report 97-455 (version 3, Nov. 19

Lithology: Major:{sandstone}, Minor:{dolostone,shale}

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]

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)
Bevan, A. W. R. & Grady, M. M. (1988) Mount Morris (Wisconsin) - A fragment of the IAB iron Pine River? Meteoritics (ISSN 0026-1114), vol. 23, Dec. 1988, p. 349-352.
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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