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Bjortjønn (Bjortjenn; Bjortjørn), Hynnekleiv, Froland, Aust-Agder, Norwayi
Regional Level Types
Bjortjønn (Bjortjenn; Bjortjørn)- not defined -
Hynnekleiv- not defined -
FrolandMunicipality
Aust-AgderCounty
NorwayCountry

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Key
Lock Map
Name(s) in local language(s):Bjortjønn/Bjortjenn, Mykland, Froland kommune, Norge
Latitude & Longitude (WGS84): 58° 35' 53'' North , 8° 26' 51'' East
Latitude & Longitude (decimal): 58.59823,8.44775
GeoHash:G#: u4qj25rrq
Köppen climate type:Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Åmli572 (2016)18.7km
Rykene647 (2013)23.7km
Arendal30,916 (2017)24.2km
Fevik4,989 (2014)27.8km
Tvedestrand1,975 (2016)28.1km


A locality described by Müller et al (2006).

He described the quarry as a 7 m wide, 4 m high and 10 m long underground workings, ending in a 20 m high, water-filles stope.

This pegmatite is interesting, while during the second worldwar the Germans mined here for uranium minerals and muscovite.

Müller spells the name as "Bjortjørn, but the name on modern maps is spelled as Bjortjønn.

Originally this locality was registered as being located in the Mykland parish, but it is actually closer to Hynekleiv, which is located in between Mykland and Bjortjønn.


Coordinates © Kartverket - https://www.kartverket.no

Regions containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
ScandinaviaRegion

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


10 valid minerals.

Detailed Mineral List:

'Albite-Anorthite Series'
Reference: Müller, A., Kearsley, A., Spratt, J. and Seltmann, R. (2012): Petrogenetic implications of magmatic garnet in granitic pegmatites from Southern Norway. Canadian Mineralogist. 50,1095-1115
'Alkali Feldspar'
Reference: Müller, A., Kearsley, A., Spratt, J. and Seltmann, R. (2012): Petrogenetic implications of magmatic garnet in granitic pegmatites from Southern Norway. Canadian Mineralogist. 50,1095-1115
Allanite-(Ce)
Formula: {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Reference: Müller, A., Kearsley, A., Spratt, J. and Seltmann, R. (2012): Petrogenetic implications of magmatic garnet in granitic pegmatites from Southern Norway. Canadian Mineralogist. 50,1095-1115
'Almandine-Spessartine Series'
Reference: Müller, A., Kearsley, A., Spratt, J. and Seltmann, R. (2012): Petrogenetic implications of magmatic garnet in granitic pegmatites from Southern Norway. Canadian Mineralogist. 50,1095-1115
'Biotite'
Reference: Müller, A., Kearsley, A., Spratt, J. and Seltmann, R. (2012): Petrogenetic implications of magmatic garnet in granitic pegmatites from Southern Norway. Canadian Mineralogist. 50,1095-1115
'Monazite'
Reference: Müller, A., Kearsley, A., Spratt, J. and Seltmann, R. (2012): Petrogenetic implications of magmatic garnet in granitic pegmatites from Southern Norway. Canadian Mineralogist. 50,1095-1115
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Müller, A., Kearsley, A., Spratt, J. and Seltmann, R. (2012): Petrogenetic implications of magmatic garnet in granitic pegmatites from Southern Norway. Canadian Mineralogist. 50,1095-1115
Pyrite
Formula: FeS2
Reference: Müller, A., Kearsley, A., Spratt, J. and Seltmann, R. (2012): Petrogenetic implications of magmatic garnet in granitic pegmatites from Southern Norway. Canadian Mineralogist. 50,1095-1115
Quartz
Formula: SiO2
Reference: Müller, A., Kearsley, A., Spratt, J. and Seltmann, R. (2012): Petrogenetic implications of magmatic garnet in granitic pegmatites from Southern Norway. Canadian Mineralogist. 50,1095-1115
Samarskite-(Y)
Formula: (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Reference: Rosenqvist, I.Th. (1949): Samarskit-yttrotantalit ved Bjortjenn i Mykland herred. Norsk Geologisk Tidsskrift. 28, 40-43
Thorite
Formula: Th(SiO4)
Description: Found as inclusions in garnet
Reference: Müller, A., Kearsley, A., Spratt, J. and Seltmann, R. (2012): Petrogenetic implications of magmatic garnet in granitic pegmatites from Southern Norway. Canadian Mineralogist. 50,1095-1115
Uraninite
Formula: UO2
Description: Found as inclusions in garnet
Reference: Müller, A., Kearsley, A., Spratt, J. and Seltmann, R. (2012): Petrogenetic implications of magmatic garnet in granitic pegmatites from Southern Norway. Canadian Mineralogist. 50,1095-1115
Xenotime-(Y)
Formula: Y(PO4)
Description: Found as inclusions in garnet
Reference: Müller, A., Kearsley, A., Spratt, J. and Seltmann, R. (2012): Petrogenetic implications of magmatic garnet in granitic pegmatites from Southern Norway. Canadian Mineralogist. 50,1095-1115
Yttrotantalite-(Y)
Formula: (Y,U4+,Fe2+)(Ta,Nb)(O,OH)4
Reference: Rosenqvist, I.Th. (1949): Samarskit-yttrotantalit ved Bjortjenn i Mykland herred. Norsk Geologisk Tidsskrift. 28, 40-43
Zircon
Formula: Zr(SiO4)
Reference: Müller, A., Kearsley, A., Spratt, J. and Seltmann, R. (2012): Petrogenetic implications of magmatic garnet in granitic pegmatites from Southern Norway. Canadian Mineralogist. 50,1095-1115

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Samarskite-(Y)4.DB.25(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Uraninite4.DL.05UO2
Yttrotantalite-(Y)4.DG.10(Y,U4+,Fe2+)(Ta,Nb)(O,OH)4
Group 8 - Phosphates, Arsenates and Vanadates
Xenotime-(Y)8.AD.35Y(PO4)
Group 9 - Silicates
Allanite-(Ce)9.BG.05b{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Thorite9.AD.30Th(SiO4)
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Alkali Feldspar'-
'Almandine-Spessartine Series'-
'Biotite'-
'Monazite'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Samarskite-(Y)8.1.11.1(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Yttrotantalite-(Y)8.1.3.1(Y,U4+,Fe2+)(Ta,Nb)(O,OH)4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Thorite51.5.2.3Th(SiO4)
Zircon51.5.2.1Zr(SiO4)
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Allanite-(Ce)58.2.1a.1{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Albite-Anorthite Series'-
'Alkali Feldspar'-
'Almandine-Spessartine Series'-
'Biotite'-
'Monazite'-
Xenotime-(Y)-Y(PO4)

List of minerals for each chemical element

HHydrogen
H Yttrotantalite-(Y)(Y,U4+,Fe2+)(Ta,Nb)(O,OH)4
H MuscoviteKAl2(AlSi3O10)(OH)2
H Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
OOxygen
O Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
O Yttrotantalite-(Y)(Y,U4+,Fe2+)(Ta,Nb)(O,OH)4
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O ZirconZr(SiO4)
O Xenotime-(Y)Y(PO4)
O UraniniteUO2
O ThoriteTh(SiO4)
O Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
AlAluminium
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
SiSilicon
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si ZirconZr(SiO4)
Si ThoriteTh(SiO4)
Si Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
PPhosphorus
P Xenotime-(Y)Y(PO4)
SSulfur
S PyriteFeS2
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Ca Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
FeIron
Fe Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Fe Yttrotantalite-(Y)(Y,U4+,Fe2+)(Ta,Nb)(O,OH)4
Fe PyriteFeS2
Fe Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
YYttrium
Y Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Y Yttrotantalite-(Y)(Y,U4+,Fe2+)(Ta,Nb)(O,OH)4
Y Xenotime-(Y)Y(PO4)
ZrZirconium
Zr ZirconZr(SiO4)
NbNiobium
Nb Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Nb Yttrotantalite-(Y)(Y,U4+,Fe2+)(Ta,Nb)(O,OH)4
CeCerium
Ce Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
TaTantalum
Ta Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Ta Yttrotantalite-(Y)(Y,U4+,Fe2+)(Ta,Nb)(O,OH)4
ThThorium
Th Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Th ThoriteTh(SiO4)
UUranium
U Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
U Yttrotantalite-(Y)(Y,U4+,Fe2+)(Ta,Nb)(O,OH)4
U UraniniteUO2

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

Proterozoic
541 - 2500 Ma



ID: 3186372
Proterozoic crystalline metamorphic rocks

Age: Proterozoic (541 - 2500 Ma)

Lithology: Granitoid gneiss; orthogneiss/paragneiss

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]

Mesoproterozoic - Paleoproterozoic
1000 - 2500 Ma



ID: 3134048
Proterozoic I quartzite

Age: Proterozoic (1000 - 2500 Ma)

Description: undifferentiated metamorphic

Lithology: Major:{quartzite}, Minor{mica schist,marble,amphibolite}

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]

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)
Müller, A., Ihlen, P.M., Kronz, A. (2006): Potential resources of quartz and feldspar raw material in Sørland IV: Relationships between quartz, feldspar and mica chemistry and pegmatite type. NGU report 2005.075, 94 pp.
Rosenqvist, I.Th. (1949): Samarskit-yttrotantalit ved Bjortjenn i Mykland herred. Norsk Geologisk Tidsskrift. 28, 40-43
Butler, J.R. (1958): Rare earths in some niobate-tantalates. Mineralogical Magazine. 31, 763-780 [with a partial analysis of the content of REE in samarskite-(Y) from Bjortjenn on p.766]
Müller, A., Kearsley, A., Spratt, J. and Seltmann, R. (2012): Petrogenetic implications of magmatic garnet in granitic pegmatites from Southern Norway. Canadian Mineralogist. 50,1095-1115


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