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THE ORE DATABASE
Occurence 5518 - 007 Rødåsen
(Object Id: 1392)
(Last updated: 26.04.2020)
Location
County: Troms Municipality: Loabák (5518)
Map 1:50000: Salangen (1432-4) Map 1:250000: Narvik
Coordinate system: EU89-UTM Zone 33
East: 611319 m. North: 7634613 m.
Longitude: 17.7591800 Latitude: 68.8004690
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Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Manganese
Element(s): Fe Mn
Importance
Raw material meaning: Little Importance (reg. 18.02.2015)

Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Mineralization
Era: Proterozoic Period: Neoproterozoic
Genesis: Sedex Form: Layer
Main texture: Banded Min. distribution: Semi-massive (20-50 % ore minerals)
Main grain size: Medium grained (1-3 mm) Main alteration: Skarn formation
Strike/Dip: 220 / 20 Direction:
Plunge:
Stratigraphic classification of host rock
Era: Proterozoic Period: Neoproterozoic
Province: Caledonides
Geotec.unit: Seve-Køli Nappe Complex
Tectonic complex:
Igneous complex:
Group: Bogengruppen Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Amphibole Major mineral (>10%)
Gangue mineral Quartz Major mineral (>10%)
Gangue mineral Garnet Major mineral (>10%)
Gangue mineral Biotite Subordinate mineral (1-10%)
Ore mineral Magnetite Major mineral (>10%)

Lithology:
Relationship Rock Origin
Host rock Granatglimmerskifer Sedimentary
Original rock :Argillaceous sediment
Metamorphic facies :Amphibolite
Wall rock Kalkspatmarmor Sedimentary
Original rock :Limestone
Metamorphic facies :Amphibolite

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Foliation Strike/Dip :220 / 20 Post-mineralisation ;...Effect :Modifies
Host rock Primary layering Strike/Dip :220 / 20 Syn-mineralisation ;...Effect :Controls

Information(s) in free text format
Free text
Denne båndete jernformasjonen opptrer i liggen til den marmorhorisonten som er vertsbergart til Gamvik Pb-Zn-mineralisering. Den har utgående i høyde 330 m.o.h., rett på nordsiden av en lite bevokst NØ-SV-gående høyderygg. På stedet er det to små røskegroper med mindre enn 1 m3 tippmateriale. Det er blottlagt bare 0.5 m mektighet av mineraliseringen - sannsynligvis er den noe mer. De øverste 10-20 cm er finkornet granatskarn med magnetittbånd (prøve 03) av få mm mektighet og magnetitt-disseminasjon. Derunder middelskornet, kvartsbåndet magnetitt-mineralisering (01). Mot liggen er den amfibolrik (02). Granatglimmerskifer er heng- og liggbergart. 3-4 m over mineraliseringen er det blottet kalkspatmarmor. Mineraliseringen kan følges med svakt kompassutslag under overdekket terreng noen hundre meter NØ-over mot Rødåsen.

Fieldsamples
Sample No. Sample type Miscellanrous
JSFE1231 Bedrock
Sampler: Jan Sverre Sandstad/...Stored: Løkken/...Size(kg): 2
Comment: Banded magnetite-quartz-hornblende mineralisation
No. of registrated element analyses = 1
No. of registrated oxide analyses = 1
JSFE1232 Bedrock
Sampler: Jan Sverre Sandstad/...Stored: Løkken/...Size(kg): 2
Comment: Banded garnet-magnetite-quartz mineralisation
No. of registrated element analyses = 1
No. of registrated oxide analyses = 1
JSFE1233 Bedrock
Sampler: Jan Sverre Sandstad/...Stored: Løkken/...Size(kg): 2
Comment: Garnetite, fine grained lenses of garnet
No. of registrated element analyses = 1
No. of registrated oxide analyses = 1
TR0445.01 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Kvartsbåndet mt-min.
No. of registrated element analyses = 1
TR0445.02 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Amfibolitt med mt.
No. of registrated element analyses = 1
TR0445.03 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Granat-mt-min.
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Analyse Results
from
Deposit Area 5518 - 007 Rødåsen

Element analyses
( *=parts pr. million, #=parts pr.billion, Negative values means below detection limit value.)
Sample No. Sample Type Cu* Zn* Pb* Co* Ni* Ag* Au#
JSFE1231 Bedrock 1 8 2 230 68 .9
JSFE1232 Bedrock 15 18 2 144 62 .3
JSFE1233 Bedrock 12 11 7 242 443 .8
TR0445.01 Bedrock 5 17 -3 11 8 -.3 7.0
TR0445.02 Bedrock 4 36 -3 59 34 -.3 3.0
TR0445.03 Bedrock 6 15 -3 75 163 -.3 12.0
------------------
Sample No. Pt# Pd# Rh# As* Cd* Ba* Mo* Sb* Bi*
JSFE1231 5 1 0.40
JSFE1232 3 2 0.60
JSFE1233 9 1 0.90
TR0445.01 -3.0 -3.0 -5.0 4 .7 27 -1.00 7 -2
TR0445.02 -3.0 -3.0 -5.0 9 -.2 31 -1.00 -2 2
TR0445.03 -3.0 -3.0 -5.0 19 -.2 10 -1.00 -2 -2
------------------
Sample No. Ga* S% V* Cr* Mn* Fe% Th* U* W*
JSFE1231 14.20 23 62 1.70 0.20
JSFE1232 13.80 33 3 1.70 0.20
JSFE1233 15.10 17 130 6.00 0.50
TR0445.01 .14 47 13 1797 29.48 2.00 -5.00 2
TR0445.02 .15 46 29 1877 15.70 5.00 -5.00 -2
TR0445.03 .14 47 15 22221 15.18 2.00 -5.00 -2
------------------
Sample No. Rb* Sr* Y* Zr* Nb* Ta* Cs* La* Ce*
JSFE1231 0.8 127.4 31.3 67 4.80 0.20 0.10 6.10 13.50
JSFE1232 1.8 39.5 21.8 54 3.00 0.10 0.05 6.30 11.50
JSFE1233 0.2 82.7 46.6 168 7.40 0.60 0.05 22.80 45.90
TR0445.01 26.0 6.00
TR0445.02 38.0 22.00
TR0445.03 34.0 18.00
------------------
Sample No. Pr* Nd* Sm* Eu* Gd* Tb* Dy* Ho* Er*
JSFE1231 2.06 11.00 2.87 0.81 4.41 0.71 4.88 1.12 3.02
JSFE1232 1.49 5.70 1.75 0.51 2.70 0.46 3.18 0.69 2.30
JSFE1233 5.37 19.80 3.98 1.30 7.09 1.20 8.03 1.59 4.49
TR0445.01
TR0445.02
TR0445.03
------------------
Sample No. Tm* Yb* Lu* B* Hf*
JSFE1231 0.46 3.21 0.46 1.70
JSFE1232 0.32 2.37 0.40 0.70
JSFE1233 0.64 4.26 0.66 3.70
TR0445.01 -3
TR0445.02 -3
TR0445.03 -3

Oxide analyses
( All values are in % )
Sample No. Sample Type SiO2 Al2O3 TiO2 Fe2O3 MnO MgO CaO
JSFE1231 Bedrock 29.49 6.01 0.41 37.92 14.19 1.42 6.32
JSFE1232 Bedrock 29.29 3.33 0.30 58.00 5.50 1.40 2.36
JSFE1233 Bedrock 37.84 15.05 0.55 13.17 21.88 1.59 7.08
------------------
Sample No. Na2O K2O P2O5 Loss Sum
JSFE1231 0.01 0.02 0.55 3.34 100.00
JSFE1232 0.01 0.01 0.37 -0.65 100.00
JSFE1233 0.01 0.01 0.09 3.10 100.00

The fact sheet was created on 02.05.2024
Questions or comments regarding the fact sheet can be emailed to:
ressursdatabaser@ngu.no
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