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Melketinden, Kvaløya ultrapotassic dike, Kvaløya, Tromsø, Troms og Finnmark, Norwayi
Regional Level Types
MelketindenOutcrop
Kvaløya ultrapotassic dikeDike
KvaløyaIsland
TromsøMunicipality
Troms og FinnmarkCounty
NorwayCountry

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Latitude & Longitude (WGS84):
69° 43' 3'' North , 18° 31' 43'' East
Latitude & Longitude (decimal):
69.71768,18.52884
GeoHash:
G#: ukmhtesqc
GRN:
N47E05
Type:
Outcrop
Köppen climate type:
Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Ersfjord306 (2013)4.4km
Tromsø52,436 (2017)18.1km
Gibostad377 (2017)44.0km
Mindat Locality ID:
271379
Long-form identifier:
mindat:1:2:271379:6
GUID (UUID V4):
0
Other Languages:
Norwegian:
Melketinden, Kvaløya lamproitten, Kvaløya, Tromsø, Troms og Finnmark, Norge


A lamproite dike that outcrops in a narrow gorge south of Melketinden. The gorge is filled with talus blocks and only a few exposures of the dyke-rock can be observed (Schingaro et al. 2014)

The dike is of inferred Carboniferous age and is crossing a granite of 1792+/-5 Ma age(Zozulya et al. 2010). It is a Si-rich phlogopite lamproite of a transitional type, and has an unusual Ti-Ba-P accessory mineralization (Zozulya et al. 2010).
The dike is 0.3–0.4 m thick, of a transitional type, and has an unusual Ti-Ba-P accessory mineralization (Zozulya et al. 2010). The rock consists of phenocrysts of light brown Mg-rich fluorotetraferriphlogopite, phlogopite, yangzhumingite and apatite in a fine-grained matrix dominated by K-feldspar, quartz and alkali amphiboles. 3 compositional groups of amphiboles, that include CNa-, Fe2+-, Fe3+- and O-rich "potassic-obertiite" (actually more likely "potassic-ferri-obertiite").

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 valid minerals. 1 erroneous literature entry.

Rock Types Recorded

Note: 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:

ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ Baotite
Formula: Ba4(Ti,Nb,W)8O16(SiO3)4Cl
ⓘ Baryte
Formula: BaSO4
ⓘ Fluorotetraferriphlogopite
Formula: KMg3(Fe3+Si3O10)F2
ⓘ 'K Feldspar'
ⓘ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
ⓘ Potassic-magnesio-fluoro-arfvedsonite
Formula: [(K,Na)][Na2][Mg4Fe3+][Si8O22][(F,OH)2]
Description: Described in paper as fluoro-potassic-magnesio-arfvedsonite. Analyses provided by Kullerud (2014) corresponds to potassic-fluoro-arfvedsonite, but the analyses show high T content (7.99 to 8.36 apfu), low C content (4.24 to 4.95 apfu) and high A (1.06 to 1.22 apfu). According to Hawthorne et al. (1993) such results are indicative of "incomplete chemical analyses (specifically, no determination of Li and H2O) and incorrect assumptions in the renormalization procedure".
ⓘ Rutile
Formula: TiO2
ⓘ Yangzhumingite
Formula: KMg2.5(Si4O10)F2
ⓘ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘRutile4.DB.05TiO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
Group 9 - Silicates
ⓘZircon9.AD.30Zr(SiO4)
ⓘBaotite9.CE.15Ba4(Ti,Nb,W)8O16(SiO3)4Cl
ⓘPotassic-magnesio-fluoro-arfvedsonite ?9.DE.25[(K,Na)][Na2][Mg4Fe3+][Si8O22][(F,OH)2]
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
ⓘYangzhumingite9.EC.20KMg2.5(Si4O10)F2
ⓘFluorotetraferriphlogopite9.EC.20KMg3(Fe3+Si3O10)F2
Unclassified
ⓘ'K Feldspar'-
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Hⓘ Potassic-magnesio-fluoro-arfvedsonite[(K,Na)][Na2][Mg4Fe3+][Si8O22][(F,OH)2]
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
OOxygen
Oⓘ BaotiteBa4(Ti,Nb,W)8O16(SiO3)4Cl
Oⓘ BaryteBaSO4
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ RutileTiO2
Oⓘ ZirconZr(SiO4)
Oⓘ Potassic-magnesio-fluoro-arfvedsonite[(K,Na)][Na2][Mg4Fe3+][Si8O22][(F,OH)2]
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Oⓘ YangzhumingiteKMg2.5(Si4O10)F2
Oⓘ FluorotetraferriphlogopiteKMg3(Fe3+Si3O10)F2
FFluorine
Fⓘ Potassic-magnesio-fluoro-arfvedsonite[(K,Na)][Na2][Mg4Fe3+][Si8O22][(F,OH)2]
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Fⓘ YangzhumingiteKMg2.5(Si4O10)F2
Fⓘ FluorotetraferriphlogopiteKMg3(Fe3+Si3O10)F2
NaSodium
Naⓘ Potassic-magnesio-fluoro-arfvedsonite[(K,Na)][Na2][Mg4Fe3+][Si8O22][(F,OH)2]
MgMagnesium
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ Potassic-magnesio-fluoro-arfvedsonite[(K,Na)][Na2][Mg4Fe3+][Si8O22][(F,OH)2]
Mgⓘ YangzhumingiteKMg2.5(Si4O10)F2
Mgⓘ FluorotetraferriphlogopiteKMg3(Fe3+Si3O10)F2
AlAluminium
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
SiSilicon
Siⓘ BaotiteBa4(Ti,Nb,W)8O16(SiO3)4Cl
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ ZirconZr(SiO4)
Siⓘ Potassic-magnesio-fluoro-arfvedsonite[(K,Na)][Na2][Mg4Fe3+][Si8O22][(F,OH)2]
Siⓘ YangzhumingiteKMg2.5(Si4O10)F2
Siⓘ FluorotetraferriphlogopiteKMg3(Fe3+Si3O10)F2
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sⓘ BaryteBaSO4
ClChlorine
Clⓘ BaotiteBa4(Ti,Nb,W)8O16(SiO3)4Cl
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Kⓘ Potassic-magnesio-fluoro-arfvedsonite[(K,Na)][Na2][Mg4Fe3+][Si8O22][(F,OH)2]
Kⓘ YangzhumingiteKMg2.5(Si4O10)F2
Kⓘ FluorotetraferriphlogopiteKMg3(Fe3+Si3O10)F2
CaCalcium
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ BaotiteBa4(Ti,Nb,W)8O16(SiO3)4Cl
Tiⓘ RutileTiO2
FeIron
Feⓘ Potassic-magnesio-fluoro-arfvedsonite[(K,Na)][Na2][Mg4Fe3+][Si8O22][(F,OH)2]
Feⓘ FluorotetraferriphlogopiteKMg3(Fe3+Si3O10)F2
ZrZirconium
Zrⓘ ZirconZr(SiO4)
NbNiobium
Nbⓘ BaotiteBa4(Ti,Nb,W)8O16(SiO3)4Cl
BaBarium
Baⓘ BaotiteBa4(Ti,Nb,W)8O16(SiO3)4Cl
Baⓘ BaryteBaSO4
WTungsten
Wⓘ BaotiteBa4(Ti,Nb,W)8O16(SiO3)4Cl

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
Norway
ScandinaviaRegion

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References

Kullerud, Kåre, Zozulya, Dmitry, Bergh, Steffen G., Hansen, Harald, Ravna, Erling J.K. (2011) Geochemistry and tectonic setting of a lamproite dyke in Kvaløya, North Norway. Lithos, 126 (3) 278-289 doi:10.1016/j.lithos.2011.08.002
Kullerud, Kåre, Zozulya, Dmitry, Erambert, Muriel, Ravna, Erling J. K. (2014) Solid solution between potassic alkali amphiboles from the silica-rich Kvaløya lamproite, West Troms Basement Complex, northern Norway. European Journal of Mineralogy, 25 (6) 935-945 doi:10.1127/0935-1221/2013/0025-2340
Schingaro, Emanuela, Kullerud, Kåre, Lacalamita, Maria, Mesto, Ernesto, Scordari, Fernando, Zozulya, Dmitry, Erambert, Muriel, Ravna, Erling J.K. (2014) Yangzhumingite and phlogopite from the Kvaløya lamproite (North Norway): Structure, composition and origin. Lithos, 210. 1-13 doi:10.1016/j.lithos.2014.09.020
Kullerud, Kåre, Zozulya, Dmitry, Ravna, Erling J. K. (2015) Geochemistry, mineralogy and tectonic setting of the Kvaløya lamproite. Norsk Mineralsymposium 2015, 57-64
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