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Ensilä, Näätäniemi, Kuhmo, Kainuu, Finlandi
Regional Level Types
Ensilä- not defined -
Näätäniemi- not defined -
KuhmoMunicipality
KainuuRegion
FinlandCountry

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Key
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Latitude & Longitude (WGS84):
64° 17' 23'' North , 29° 5' 2'' East
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Kuhmo10,214 (2014)27.2km


Serpentinized (autometasomatism) cumulate wehrlite from a complex differentiated intrusion (basal wehrlite, clinopyroxenite, gabbro, and upper granophyre) in Archaean serpentinite.
Localization: north part of Näätäniemi massif.

Regions containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
Fennoscandian ShieldShield

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


9 valid minerals.

Detailed Mineral List:

Antigorite
Formula: Mg3(Si2O5)(OH)4
Reference: Eur. J. Mineral. , 1994, 6, pp. 145-150.
Chromite
Formula: Fe2+Cr3+2O4
Reference: Eur. J. Mineral. , 1994, 6, pp. 145-150.
'Clinopyroxene Subgroup'
Reference: Eur. J. Mineral. , 1994, 6, pp. 145-150.
Forsterite
Formula: Mg2SiO4
Reference: Eur. J. Mineral. , 1994, 6, pp. 145-150.
Hematite
Formula: Fe2O3
Description: Exsolutions in pyrophanite.
Reference: Eur. J. Mineral. , 1994, 6, pp. 145-150.
'Hornblende'
Reference: Eur. J. Mineral. , 1994, 6, pp. 145-150.
Ilmenite
Formula: Fe2+TiO3
Reference: Eur. J. Mineral. , 1994, 6, pp. 145-150.
Lizardite
Formula: Mg3(Si2O5)(OH)4
Reference: Eur. J. Mineral. , 1994, 6, pp. 145-150.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Eur. J. Mineral. , 1994, 6, pp. 145-150.
Pyrophanite
Formula: Mn2+TiO3
Description: Intimely associated with magnetite.
Reference: Eur. J. Mineral. , 1994, 6, pp. 145-150.
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Reference: Eur. J. Mineral. , 1994, 6, pp. 145-150.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Hematite4.CB.05Fe2O3
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Pyrophanite4.CB.05Mn2+TiO3
Group 9 - Silicates
Antigorite9.ED.15Mg3(Si2O5)(OH)4
Forsterite9.AC.05Mg2SiO4
Lizardite9.ED.15Mg3(Si2O5)(OH)4
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Unclassified Minerals, Rocks, etc.
'Clinopyroxene Subgroup'-
'Hornblende'-

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Ilmenite4.3.5.1Fe2+TiO3
Pyrophanite4.3.5.3Mn2+TiO3
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Forsterite51.3.1.2Mg2SiO4
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Antigorite71.1.2a.1Mg3(Si2O5)(OH)4
Lizardite71.1.2b.2Mg3(Si2O5)(OH)4
Unclassified Minerals, Mixtures, etc.
'Clinopyroxene Subgroup'-
'Hornblende'-

List of minerals for each chemical element

HHydrogen
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
H LizarditeMg3(Si2O5)(OH)4
H AntigoriteMg3(Si2O5)(OH)4
OOxygen
O ChromiteFe2+Cr23+O4
O MagnetiteFe2+Fe23+O4
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
O HematiteFe2O3
O LizarditeMg3(Si2O5)(OH)4
O IlmeniteFe2+TiO3
O PyrophaniteMn2+TiO3
O AntigoriteMg3(Si2O5)(OH)4
O ForsteriteMg2SiO4
MgMagnesium
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Mg LizarditeMg3(Si2O5)(OH)4
Mg AntigoriteMg3(Si2O5)(OH)4
Mg ForsteriteMg2SiO4
SiSilicon
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Si LizarditeMg3(Si2O5)(OH)4
Si AntigoriteMg3(Si2O5)(OH)4
Si ForsteriteMg2SiO4
CaCalcium
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
TiTitanium
Ti IlmeniteFe2+TiO3
Ti PyrophaniteMn2+TiO3
CrChromium
Cr ChromiteFe2+Cr23+O4
MnManganese
Mn PyrophaniteMn2+TiO3
FeIron
Fe ChromiteFe2+Cr23+O4
Fe MagnetiteFe2+Fe23+O4
Fe HematiteFe2O3
Fe IlmeniteFe2+TiO3

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

Archean
2500 - 4000 Ma



ID: 3144592
Archean basalt

Age: Archean (2500 - 4000 Ma)

Lithology: Major:{basalt group}, Minor{peridotite,gabbro,conglomerate}

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Neoarchean - Mesoarchean
2500 - 3200 Ma



ID: 645285
Igneous: extrusive; Extrusive: undivided

Age: Archean (2500 - 3200 Ma)

Description: Northern Europe, Karelian Craton

Comments: Craton and massif; Koistinen et al., 2001; Sigmond, 2002; Solli, unpublished compilation, 2007-08; Bergman et al., unpublished revisions, 2007-08

Lithology: Volcanic and sedimentary rocks, amphibolite, mica gneiss, iron-formation

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]

Neoarchean - Mesoarchean
2500 - 3200 Ma



ID: 3189778
Archean volcanic rocks

Age: Archean (2500 - 3200 Ma)

Comments: Karelian Domain

Lithology: Mafic 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

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Liipo, Jussi P., Vuollo, Jouni I., Nykanen, Vesa M., and Piirainen, Tauno A. (1994) Pyrophanite and ilmenite in serpentinized wehrlite from Ensila, Kuhmo greenstone belt, Finland. European Journal of Mineralogy, 6(1), 145-149.


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