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Omolon meteorite, Magadan, Magadanskaya Oblast, Russia

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Latitude & Longitude (WGS84): 64° 1' 12'' North , 161° 48' 30'' East
Latitude & Longitude (decimal): 64.02000,161.80833
GeoHash:G#: ze7h4n3px
Locality type:Meteorite Fall Location
Meteorite Class:PMG pallasite meteorite
Meteoritical Society Class:Pallasite, PMG
Metbull:View entry in Meteoritical Bulletin Database
Köppen climate type:ET : Tundra


Pallasite, Main Group (PMG)
Fall 16 May 1981, 250 kg


The Omolon pallasite entered the earth's atmosphere, was detected by a meteorological station, observed to fall and later located by a local reindeer-breeder, but was not fully recovered for scientific purposes until 1990. Despite losing considerable mass during atmospheric entry, the Omolon Pallasite is the most massive of only 4 witnessed Pallasite meteorite falls. (Pallasites represent only about 0.3% of all witnessed meteorite falls, but are often quite durable. A number of even larger finds are on display at museums throughout the world). Omolon's primary constituents — olivine (~ 60 Vol%) and Fe-Ni metal (both around & within the olivine) — mark it as a Pallasite. The composition of Omolon's olivine (Fa12.2) and Fe-Ni metal (10.6% Ni), apparent shared cosmic ray exposure age (~80 Ma), and other properties mark it as a member of the so-called 'main group' Pallasites. Like many other Pallasites, Omolon contains a complex mix of minor sulfides, phosphates, and phosphides which have accompanied the olivine and Fe-Ni metal from some original homeworld to its present status as a recovered meteorite.

First indications are that Omolon entered the earth as a fragmented meteoroid in an earth-crossing Apollo orbit. However, much of the focus of the research referenced here is concerned with how to characterize and disentangle the various compositional relics and textural features which were first created some 4.56 billion years ago and then subsequently altered on its long journey to its new Russian home. [The main mass resides with the Russian Academy of Sciences Far East Division in Magadan.]

Regions containing this locality

Soviet Union (1922-1991)

Country (Former) - 3,733 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


12 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:

Chromite
Formula: Fe2+Cr3+2O4
Reference: Sharygin, V. V., Kovyazin, S. V. & Podgornykh, N. M. (2006) Mineralogy of Olivine-hosted Inclusions from the Omolon Pallasite (abstract). Lunar and Planetary Science Conference, XXXVII, abstract no.1235. (Mar 2006)
Daubréelite
Formula: Fe2+Cr3+2S4
Reference: Lavrentjeva, Z. A., Lyul, A. Yu. & Kolesov, G. M. (2007) Trace Element Distribution in the Pallasite Omolon: Lunar and Planetary Science XXXVIII. LPI Contribution No. 1338, pdf#1036. (Mar 2007)
Eskolaite
Formula: Cr2O3
Description: Rare in olivine=hosted metal-sulfide blebs
Reference: Sharygin, V. V., Kovyazin, S. V. & Podgornykh, N. M. (2006) Mineralogy of Olivine-hosted Inclusions from the Omolon Pallasite (abstract). Lunar and Planetary Science Conference, XXXVII, abstract no.1235. (Mar 2006)
'Fayalite-Forsterite Series'
Description: Olivine [Fa 12.2]. Dislocation of olivine crystal structure important in several instances. Phosphoran Olivine noted by Lavrentjeva et al. (2013)
Reference: Wlotzka, F. (1992) Meteoritical Bulletin, No. 72: Meteoritics 27(1): 109-117. (March 1992); Sharygin, V. V., Kovyazin, S. V. & Podgornykh, N. M. (2006) Mineralogy of Olivine-hosted Inclusions from the Omolon Pallasite (abstract). Lunar and Planetary Science Conference, XXXVII, abstract no.1235. (Mar 2006); Lavrentjeva, Z. A., Lyul, A. Yu. & Kolesov, G. M. (2007) Trace Element Distribution in the Pallasite Omolon: Lunar and Planetary Science XXXVIII. LPI Contribution No. 1338, pdf#1036. (Mar 2007); Lavrentjeva, Z. A. & Lyul, A. Yu. (2013) REE and Some Other Trace Elements Distribution in the Minerals of the Pallasites: Lunar and Planetary Science Conference XLIV, LPI Contribution No. 1719, pdf#114. (Mar 2013)
Iron
Formula: Fe
Reference: Sharygin, V. V., Kovyazin, S. V. & Podgornykh, N. M. (2006) Mineralogy of Olivine-hosted Inclusions from the Omolon Pallasite (abstract). Lunar and Planetary Science Conference, XXXVII, abstract no.1235. (Mar 2006); Lavrentjeva, Z. A. & Lyul, A. Yu. (2013) REE and Some Other Trace Elements Distribution in the Minerals of the Pallasites: Lunar and Planetary Science Conference XLIV, LPI Contribution No. 1719, pdf#114. (Mar 2013)
Iron var: Kamacite
Formula: (Fe,Ni)
Reference: Sharygin, V. V., Kovyazin, S. V. & Podgornykh, N. M. (2006) Mineralogy of Olivine-hosted Inclusions from the Omolon Pallasite (abstract). Lunar and Planetary Science Conference, XXXVII, abstract no.1235. (Mar 2006); Lavrentjeva, Z. A. & Lyul, A. Yu. (2013) REE and Some Other Trace Elements Distribution in the Minerals of the Pallasites: Lunar and Planetary Science Conference XLIV, LPI Contribution No. 1719, pdf#114. (Mar 2013)
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Lavrentjeva, Z. A., Lyul, A. Yu. & Kolesov, G. M. (2007) Trace Element Distribution in the Pallasite Omolon: Lunar and Planetary Science XXXVIII. LPI Contribution No. 1338, pdf#1036. (Mar 2007)
Merrillite
Formula: Ca9NaMg(PO4)7
Description: In olivine (rare); Reading Merrillite (extraterrestrial) for 'Whitlockite' (terrestrial)
Reference: Sharygin, V. V., Kovyazin, S. V. & Podgornykh, N. M. (2006) Mineralogy of Olivine-hosted Inclusions from the Omolon Pallasite (abstract). Lunar and Planetary Science Conference, XXXVII, abstract no.1235. (Mar 2006); Lavrentjeva, Z. A. & Lyul, A. Yu. (2013) REE and Some Other Trace Elements Distribution in the Minerals of the Pallasites: Lunar and Planetary Science Conference XLIV, LPI Contribution No. 1719, pdf#114. (Mar 2013)
Nickelphosphide
Formula: (Ni,Fe)3P
Reference: Sharygin, V. V., Kovyazin, S. V. & Podgornykh, N. M. (2006) Mineralogy of Olivine-hosted Inclusions from the Omolon Pallasite (abstract). Lunar and Planetary Science Conference, XXXVII, abstract no.1235. (Mar 2006)
'Plessite'
Reference: Sharygin, V. V., Kovyazin, S. V. & Podgornykh, N. M. (2006) Mineralogy of Olivine-hosted Inclusions from the Omolon Pallasite (abstract). Lunar and Planetary Science Conference, XXXVII, abstract no.1235. (Mar 2006)
'PMG pallasite meteorite'
Reference: Meteoritical Society Database
Stanfieldite
Formula: Ca4Mg5(PO4)6
Reference: Sharygin, V. V., Kovyazin, S. V. & Podgornykh, N. M. (2006) Mineralogy of Olivine-hosted Inclusions from the Omolon Pallasite (abstract). Lunar and Planetary Science Conference, XXXVII, abstract no.1235. (Mar 2006); Lavrentjeva, Z. A. & Lyul, A. Yu. (2013) REE and Some Other Trace Elements Distribution in the Minerals of the Pallasites: Lunar and Planetary Science Conference XLIV, LPI Contribution No. 1719, pdf#114. (Mar 2013)
Taenite
Formula: (Fe,Ni)
Description: Taenite in olivine is very variable (Ni 13-40 wt%).
Reference: Sharygin, V. V., Kovyazin, S. V. & Podgornykh, N. M. (2006) Mineralogy of Olivine-hosted Inclusions from the Omolon Pallasite (abstract). Lunar and Planetary Science Conference, XXXVII, abstract no.1235. (Mar 2006)
Tridymite
Formula: SiO2
Reference: Lavrentjeva, Z. A. & Lyul, A. Yu. (2013) REE and Some Other Trace Elements Distribution in the Minerals of the Pallasites: Lunar and Planetary Science Conference XLIV, LPI Contribution No. 1719, pdf#114. (Mar 2013)
Troilite
Formula: FeS
Reference: Sharygin, V. V., Kovyazin, S. V. & Podgornykh, N. M. (2006) Mineralogy of Olivine-hosted Inclusions from the Omolon Pallasite (abstract). Lunar and Planetary Science Conference, XXXVII, abstract no.1235. (Mar 2006); Lavrentjeva, Z. A., Lyul, A. Yu. & Kolesov, G. M. (2007) Trace Element Distribution in the Pallasite Omolon: Lunar and Planetary Science XXXVIII. LPI Contribution No. 1338, pdf#1036. (Mar 2007)
Whitlockite
Formula: Ca9Mg(PO4)6(HPO4)
Reference: Sharygin, V. V., Kovyazin, S. V. & Podgornykh, N. M. (2006) Mineralogy of Olivine-hosted Inclusions from the Omolon Pallasite (abstract). Lunar and Planetary Science Conference, XXXVII, abstract no.1235. (Mar 2006)

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Iron'1.AE.05Fe
var: Kamacite1.AE.05(Fe,Ni)
Nickelphosphide1.BD.05(Ni,Fe)3P
Taenite1.AE.10(Fe,Ni)
Group 2 - Sulphides and Sulfosalts
'Daubréelite'2.DA.05Fe2+Cr3+2S4
Troilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
'Chromite'4.BB.05Fe2+Cr3+2O4
'Eskolaite'4.CB.05Cr2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Tridymite4.DA.10SiO2
Group 8 - Phosphates, Arsenates and Vanadates
Merrillite8.AC.45Ca9NaMg(PO4)7
Stanfieldite8.AC.70Ca4Mg5(PO4)6
Whitlockite8.AC.45Ca9Mg(PO4)6(HPO4)
Unclassified Minerals, Rocks, etc.
'Fayalite-Forsterite Series'-
PMG pallasite meteorite-
Plessite-

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)
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
Group 4 - SIMPLE OXIDES
A2X3
Eskolaite4.3.1.3Cr2O3
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
(AB)3(XO4)2
Merrillite38.3.4.4Ca9NaMg(PO4)7
Stanfieldite38.3.5.1Ca4Mg5(PO4)6
Whitlockite38.3.4.1Ca9Mg(PO4)6(HPO4)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Tridymite75.1.2.1SiO2
Unclassified Minerals, Rocks, etc.
'Fayalite-Forsterite Series'-
Iron-Fe
Nickelphosphide-(Ni,Fe)3P
'PMG pallasite meteorite'-
'Plessite'-

List of minerals for each chemical element

HHydrogen
H WhitlockiteCa9Mg(PO4)6(HPO4)
OOxygen
O ChromiteFe2+Cr23+O4
O EskolaiteCr2O3
O MagnetiteFe2+Fe23+O4
O MerrilliteCa9NaMg(PO4)7
O StanfielditeCa4Mg5(PO4)6
O TridymiteSiO2
O WhitlockiteCa9Mg(PO4)6(HPO4)
NaSodium
Na MerrilliteCa9NaMg(PO4)7
MgMagnesium
Mg MerrilliteCa9NaMg(PO4)7
Mg StanfielditeCa4Mg5(PO4)6
Mg WhitlockiteCa9Mg(PO4)6(HPO4)
SiSilicon
Si TridymiteSiO2
PPhosphorus
P MerrilliteCa9NaMg(PO4)7
P Nickelphosphide(Ni,Fe)3P
P StanfielditeCa4Mg5(PO4)6
P WhitlockiteCa9Mg(PO4)6(HPO4)
SSulfur
S DaubréeliteFe2+Cr23+S4
S TroiliteFeS
CaCalcium
Ca MerrilliteCa9NaMg(PO4)7
Ca StanfielditeCa4Mg5(PO4)6
Ca WhitlockiteCa9Mg(PO4)6(HPO4)
CrChromium
Cr ChromiteFe2+Cr23+O4
Cr DaubréeliteFe2+Cr23+S4
Cr EskolaiteCr2O3
FeIron
Fe ChromiteFe2+Cr23+O4
Fe DaubréeliteFe2+Cr23+S4
Fe IronFe
Fe Iron (var: Kamacite)(Fe,Ni)
Fe MagnetiteFe2+Fe23+O4
Fe Taenite(Fe,Ni)
Fe TroiliteFeS
NiNickel
Ni Iron (var: Kamacite)(Fe,Ni)
Ni Nickelphosphide(Ni,Fe)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

Permian
251.902 - 298.9 Ma



ID: 627708
Sedimentary; Slope and deep water

Age: Phanerozoic (251.902 - 298.9 Ma)

Description: Verkhoyansk-Kolyma region, Yana-Kolyma fold-thrust belt, western Okhotsk-Chukhotsk volcanic belt

Comments: Orogen, magmatic arc/suite; Petrov et al., unpublished compilation, 2007-08

Lithology: Shale, chert, iron-formation, greywacke, turbidite, argillaceous limestone, matrix-supported conglomerate;

Reference: J.C. Harrison, M.R. St-Onge, O.V. Petrov, S.I. Strelnikov, B.G. Lopatin, F.H. Wilson, S. Tella, D. Paul, T. Lynds, S.P. Shokalsky, C.K. Hults, S. Bergman, H.F. Jepsen, and A. Solli. Geological map of the Arctic. doi:10.4095/287868. Geological Survey of Canada Map 2159A. [2]

Late Paleozoic
251.902 - 358.9 Ma



ID: 3187208
Paleozoic sedimentary rocks

Age: Phanerozoic (251.902 - 358.9 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)
Wlotzka, F. (1992) Meteoritical Bulletin, No. 72: Meteoritics 27(1): 109-117. (March 1992)
Bronshten, V. A., Zharov, V. E. & Khotinok, R. L. (1999) Atmospheric trajectory and orbit of the Omolon meteorite: Meteoritics & Planetary Science 34(Sup): A131-A135. (July 1999)
Grady, M. M. (2000) Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge, New York, Oakleigh, Madrid, Cape Town. 690 pages.
Bondar, Y. V., Kashkarov, L. L. & Perelygin, V. P.(2002) Tracks and Dislocations in Silicate Minerals of the Omolon Pallasite (abstract): Lunar and Planetary Science Conference XXXIII, abstract no.1067. (March 2002)
Sharygin, V. V., Kovyazin, S. V. & Podgornykh, N. M. (2006) Mineralogy of Olivine-hosted Inclusions from the Omolon Pallasite (abstract). Lunar and Planetary Science Conference, XXXVII, abstract no.1235. (Mar 2006)
Lavrentjeva, Z. A., Lyul, A. Yu. & Kolesov, G. M. (2007) Trace Element Distribution in the Pallasite Omolon: Lunar and Planetary Science XXXVIII. LPI Contribution No. 1338, pdf.#1036. (Mar 2007)
Lavrentjeva, Z. A. & Lyul, A. Yu. (2013) REE and Some Other Trace Elements Distribution in the Minerals of the Pallasites: Lunar and Planetary Science Conference XLIV, LPI Contribution No. 1719, pdf#114. (Mar 2013)
Grady, M. M., Pratesi, G. & Moggi-Cecchi, V. (2015) Atlas of Meteorites. Cambridge University Press: Cambridge, United Kingdom. 373 pages.

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