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THE ORE DATABASE
Occurence 5518 - 005 Gunnarheimen
(Object Id: 1388)
(Last updated: 14.03.2024)
Location
County: Troms Municipality: Loabák (5518)
Map 1:50000: Salangen (1432-4) Map 1:250000: Narvik
Coordinate system: EU89-UTM Zone 33
East: 607805 m. North: 7630532 m.
Longitude: 17.6678360 Latitude: 68.7653050
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Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron
Element(s): Fe P
Importance
Raw material meaning: Little Importance (reg. 18.02.2015)

Resources and production
Activity: Pitting Reserves: 13500 thousand tons
Operating method: Historical production:


Products
Element/product Crude ore grade or quality Reg. date
Fe 24.6 % 16.01.1995
Fe-mag. 18 % 16.01.1995
P 0.99 % 16.01.1995
S 0.303 % 16.01.1995

Operations
From - To Activity Comments
- 1919 Pitting
1919 - 1919 Core drilling
1961 - 1961 Sampling Company/Institution :Mannesmann, Bottke & Findel
1978 - 1978 Geology Company/Institution :Rana Gruber, U. Søvegjarto.

Mineralization
Era: Proterozoic Period: Neoproterozoic
Genesis: Sedex Form: Layer
Main texture: Banded Min. distribution: Semi-massive (20-50 % ore minerals)
Main grain size: Fine grained (< 1 mm) Main alteration:
Strike/Dip: 200 / 20 Direction: 290
Plunge: 20
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 Quartz Major mineral (>10%)
Gangue mineral Hornblende Major mineral (>10%)
Gangue mineral Carbonate Subordinate mineral (1-10%)
Gangue mineral Chlorite Subordinate mineral (1-10%)
Gangue mineral Albite Subordinate mineral (1-10%)
Gangue mineral Biotite Subordinate mineral (1-10%)
Gangue mineral Epidote Accessory mineral (<1%)
Ore mineral Magnetite Major mineral (>10%)
Ore mineral Apatite Subordinate mineral (1-10%)

Lithology:
Relationship Rock Origin
Host rock Karbonatgl.sk. 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.:
Unknown Mineral banding Strike/Dip :200 / 20 Syn-mineralisation ;...Effect :None
Unknown Fold axis Strike/Dip :290 / 20

Information(s) in free text format
Free text
The Gunnarheimen deposit is hosted by a carbonate-mica schist, interlayered with calcite marble. It is an extensive magnetite mineralization, which can be followed for at least 9 km along strike. The richer part of the deposit is 3000 m long, 10 m thick and has been followed to 150 m depth. With a specific weight of 3 g/ccm the tonnage is 13.5 Mt, which contains 18 % Fe and 0.99 % P.

Fieldsamples
Sample No. Sample type Miscellanrous
JSFE1235 Bedrock
Sampler: Jan Sverre Sandstad/...Stored: Løkken/...Size(kg): 2
Comment: Banded magnetite-quartz-garnet-hornblende mineralisation
No. of registrated element analyses = 1
No. of registrated oxide analyses = 1
JSFE1236 Bedrock
Sampler: Jan Sverre Sandstad/...Stored: Løkken/...Size(kg): 2
Comment: Banded magnetite-garnet mineralisation, fine grained
No. of registrated element analyses = 1
No. of registrated oxide analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Marines
(Object Id: 1733 5,01,00)
Location
County: Troms Municipality: Loabák (5518)
Map 1:50000: Salangen (1432-4) Map 1:250000: Narvik
Coordinate system: EU89-UTM Zone 33
East: 607793 m. North: 7632261 m.
Longitude: 17.6693840 Latitude: 68.7807960
Show on map
Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron
Element(s): Fe P
Resources and production
Activity: Exploration Reserves:
Operating method: Historical production:


Fieldsamples
Sample No. Sample type Miscellanrous
JSFE1230 Bedrock
Sampler: Jan Sverre Sandstad/...Stored: Løkken/...Size(kg): 2
Comment: Banded and disseminated magnetite-quartz-garnet mineralisation in amphibolite
No. of registrated element analyses = 1
No. of registrated oxide analyses = 1
TR0441.02 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Fink. båndet mt-min.
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Stavhammaren I
(Object Id: 1738 5,02,00)
Location
County: Troms Municipality: Loabák (5518)
Map 1:50000: Salangen (1432-4) Map 1:250000: Narvik
Coordinate system: EU89-UTM Zone 33
East: 608782 m. North: 7631246 m.
Longitude: 17.6927530 Latitude: 68.7713130
Show on map
Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron
Element(s): Fe P
Resources and production
Activity: Exploration Reserves:
Operating method: Historical production:


Name of Locality: Stavhammaren II
(Object Id: 1734 5,03,00)
Location
County: Troms Municipality: Loabák (5518)
Map 1:50000: Salangen (1432-4) Map 1:250000: Narvik
Coordinate system: EU89-UTM Zone 33
East: 608308 m. North: 7630757 m.
Longitude: 17.6805050 Latitude: 68.7671190
Show on map
Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron
Element(s): Fe P
Resources and production
Activity: Exploration Reserves:
Operating method: Historical production:


Fieldsamples
Sample No. Sample type Miscellanrous
JSFE1201 Bedrock
Sampler: Jan Sverre Sandstad/...Stored: Løkken/...Size(kg): 2
Comment: Magnetite-amphibole banded mineralization, fine grained
No. of registrated element analyses = 1
No. of registrated oxide analyses = 1
TR0441.01 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Fink. båndet mt-min.
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Stavhammaren III
(Object Id: 1735 5,04,00)
Location
County: Troms Municipality: Loabák (5518)
Map 1:50000: Salangen (1432-4) Map 1:250000: Narvik
Coordinate system: EU89-UTM Zone 33
East: 608113 m. North: 7630737 m.
Longitude: 17.6756450 Latitude: 68.7670210
Show on map
Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron
Element(s): Fe P
Resources and production
Activity: Exploration Reserves:
Operating method: Historical production:


Fieldsamples
Sample No. Sample type Miscellanrous
JSFE1237 Bedrock
Sampler: Jan Sverre Sandstad/...Stored: Løkken/...Size(kg): 2
Comment: Magnetite dissemination in hornblende-biotite rock, medium grained
No. of registrated element analyses = 1
No. of registrated oxide analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Stavhammaren IV
(Object Id: 1736 5,05,00)
Location
County: Troms Municipality: Loabák (5518)
Map 1:50000: Salangen (1432-4) Map 1:250000: Narvik
Coordinate system: EU89-UTM Zone 33
East: 607782 m. North: 7630446 m.
Longitude: 17.6671630 Latitude: 68.7645420
Show on map
Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron
Element(s): Fe P
Resources and production
Activity: Exploration Reserves:
Operating method: Historical production:


Fieldsamples
Sample No. Sample type Miscellanrous
JSFE1234 Bedrock
Sampler: Jan Sverre Sandstad/...Stored: Løkken/...Size(kg): 2
Comment: Banded magnetite-hornblende-biotite-quartz mineralisation
No. of registrated element analyses = 1
No. of registrated oxide analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Stavhammaren V
(Object Id: 1737 5,06,00)
Location
County: Troms Municipality: Loabák (5518)
Map 1:50000: Salangen (1432-4) Map 1:250000: Narvik
Coordinate system: EU89-UTM Zone 33
East: 608682 m. North: 7631196 m.
Longitude: 17.6902270 Latitude: 68.7709040
Show on map
Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron
Element(s): Fe P
Resources and production
Activity: Exploration Reserves:
Operating method: Historical production:


Analyse Results
from
Deposit Area 5518 - 005 Gunnarheimen

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#
JSFE1201 Bedrock 29 17 2 13 9 2.3
JSFE1230 Bedrock 5 23 3 38 24 1.9
JSFE1234 Bedrock 35 20 2 10 11 .3
JSFE1235 Bedrock 13 26 3 10 19 .8
JSFE1236 Bedrock 6 11 3 3 4 .3
JSFE1237 Bedrock 21 25 2 10 15 .8
TR0441.01 Bedrock 17 24 4 -1 8 -.3 -2.0
TR0441.02 Bedrock 8 24 -3 8 13 -.3 -2.0
------------------
Sample No. Pt# Pd# Rh# As* Cd* Ba* Mo* Sb* Bi*
JSFE1201 0 59 0.50
JSFE1230 1 88 0.50
JSFE1234 1 33 0.70
JSFE1235 0 259 0.90
JSFE1236 1 8 0.90
JSFE1237 1 376 0.50
TR0441.01 -3.0 -3.0 -5.0 6 -.2 22 -1.00 -2 -2
TR0441.02 -3.0 -3.0 -5.0 6 -.2 67 -1.00 -2 -2
------------------
Sample No. Ga* S% V* Cr* Mn* Fe% Th* U* W*
JSFE1201 10.80 85 48 6.20 1.20
JSFE1230 9.60 102 21 5.20 0.70
JSFE1234 12.90 86 14 4.80 0.80
JSFE1235 8.80 101 82 4.60 0.50
JSFE1236 6.30 51 3 1.60 0.30
JSFE1237 8.80 77 89 4.70 0.70
TR0441.01 .16 34 14 219 26.46 3.00 5.00 -2
TR0441.02 .15 62 24 4521 19.91 3.00 -5.00 -2
------------------
Sample No. Rb* Sr* Y* Zr* Nb* Ta* Cs* La* Ce*
JSFE1201 4.3 256.4 21.0 160 9.00 0.70 0.05 25.00 48.20
JSFE1230 10.8 107.3 28.5 85 5.50 0.40 0.50 20.80 41.40
JSFE1234 1.6 236.7 23.4 128 7.30 0.60 0.05 20.20 40.40
JSFE1235 36.7 148.7 29.8 79 8.40 0.40 1.60 10.00 19.40
JSFE1236 0.8 306.4 19.3 38 1.70 0.10 0.05 5.50 16.70
JSFE1237 30.2 101.8 25.5 114 8.40 0.50 1.00 24.60 49.30
TR0441.01 218.0 6.00
TR0441.02 66.0 15.00
------------------
Sample No. Pr* Nd* Sm* Eu* Gd* Tb* Dy* Ho* Er*
JSFE1201 5.60 22.00 4.17 0.90 4.24 0.58 3.71 0.75 2.06
JSFE1230 4.79 18.70 3.85 0.90 4.06 0.63 4.33 0.81 2.84
JSFE1234 4.93 19.10 3.74 0.83 3.84 0.56 3.69 0.75 2.16
JSFE1235 2.47 10.70 2.52 0.65 3.46 0.55 4.22 0.94 2.75
JSFE1236 1.50 8.30 1.80 0.56 2.41 0.36 2.65 0.58 1.73
JSFE1237 5.91 23.10 4.69 1.04 5.11 0.69 4.65 0.92 2.41
TR0441.01
TR0441.02
------------------
Sample No. Tm* Yb* Lu* B* Hf*
JSFE1201 0.34 2.13 0.32 4.70
JSFE1230 0.42 2.97 0.46 2.30
JSFE1234 0.33 1.97 0.34 3.70
JSFE1235 0.39 2.65 0.42 2.20
JSFE1236 0.26 1.52 0.27 1.10
JSFE1237 0.38 2.29 0.36 2.90
TR0441.01 -3
TR0441.02 -3

Oxide analyses
( All values are in % )
Sample No. Sample Type SiO2 Al2O3 TiO2 Fe2O3 MnO MgO CaO
JSFE1201 Bedrock 58.70 8.86 0.63 14.67 0.07 4.25 7.62
JSFE1230 Bedrock 43.72 5.67 0.35 36.86 1.58 2.79 5.81
JSFE1234 Bedrock 49.83 6.88 0.52 27.05 0.09 3.76 7.90
JSFE1235 Bedrock 44.58 5.21 0.44 39.38 0.22 3.50 3.84
JSFE1236 Bedrock 39.72 2.02 0.14 47.36 0.05 1.50 5.97
JSFE1237 Bedrock 48.30 5.81 0.49 33.17 0.07 3.57 5.22
------------------
Sample No. Na2O K2O P2O5 Loss Sum
JSFE1201 1.64 0.33 0.57 1.89 99.00
JSFE1230 0.52 0.39 0.38 1.68 100.00
JSFE1234 1.03 0.29 2.22 0.09 100.00
JSFE1235 0.33 1.10 1.60 -0.10 100.00
JSFE1236 0.22 0.06 3.51 -1.04 100.00
JSFE1237 0.52 1.01 1.56 -0.02 100.00

The fact sheet was created on 05.05.2024
Questions or comments regarding the fact sheet can be emailed to:
ressursdatabaser@ngu.no
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