(Last updated: 15.03.2024)
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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Occurence 5530 - 002 Hamn | |||||
| (Object Id: 1394) (Last updated: 15.03.2024) |
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| Drill Cores: Hamn |
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| Location |
| County: | Troms | Municipality: | Senja (5530) |
| Map 1:50000: | Gryllefjord (1333-1) | Map 1:250000: | Tromsø |
| Coordinate system: | EU89-UTM Zone 34 |
| East: | 348883 m. | North: | 7705055 m. |
| Longitude: | 17.1472010 | Latitude: | 69.4119430 |
| Show on map |
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| Resource |
| Resource Type: | Ferroalloys (Cr,Ni,Co,V,Mo,W) | Resource Subtype: | Nickel | |
| Element(s): | Ni Cu Co |
| Importance |
| Raw material meaning: | Little Importance (reg. 18.02.2015) |
| Historical: | Yes , (Confirmed 25.feb.2005 by Havard Gautneb) |
| Resources and production |
| Activity: | Mining | Reserves: | ||
| Operating method: | Open pit and underground mining | Historical production: | 109 thousand tons |
Products |
| Element/product | Crude ore grade or quality | Reg. date | |
| Co | 0.066 % | 15.03.2024 | |
| Cu | 0.46 % | 09.03.1994 | |
| Ni | 0.9 % | 09.03.1994 |
Operations |
| From - To | Activity | Comments | |
| 1872 - 1880 | Regular production | Company/Institution :Senjen Nikkelverk | |
| 1880 - 1886 | Regular production | Company/Institution :Vivian & Co | |
| 1962 - 1962 | Geophysics | Company/Institution :NGU |
Mineralization |
| Era: | Proterozoic | Period: | ||
| Genesis: | Orthomagmatic formation | Form: | Lens | |
| Main texture: | Structureless | Min. distribution: | Semi-massive (20-50 % ore minerals) |
| Main grain size: | Medium grained (1-3 mm) | Main alteration: |
| Strike/Dip: | 90 / 90 | Direction: | ||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Proterozoic | Period: |
| Province: | Caledonian Basement Province | |
| Geotec.unit: | West-Troms Complex | |
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Amphibole | Major mineral (>10%) | |
| Gangue mineral | Plagioclase | Subordinate mineral (1-10%) | |
| Gangue mineral | Biotite | Accessory mineral (<1%) | |
| Ore mineral | Pyrrhotite | Major mineral (>10%) | |
| Ore mineral | Pyrite | Subordinate mineral (1-10%) | |
| Ore mineral | Pentlandite | Subordinate mineral (1-10%) | |
| Ore mineral | Chalcopyrite | Subordinate mineral (1-10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | gabbro | Intrusive Original rock :Gabbro |
Information(s) in free text format |
| Free text |
| The deposit was in production from 1872-1886 with a short break in the late 1870's. During the 1880's, the deposit has been leased by the English company of Vivian & Co, which worked the deposit until 1886. Production was ceased because the ore body was found to wedged out further down. The deepest shaft is 62m, and there is supposedly still ore even at the deepest level. From 1880-1886, 48.000 tonnes of ore were smelted. Altogether, 109.000 tonnes were produced, with an average Ni content of 0.9wt% and Cu content of 0.4wt%. The mine entrance is about 60x15m, water table is about 15m lower. According to Bugge 1935, the ore body is cigar shaped with dimensions 60x13m. In the upper part, the ore body stands steep whereas further down it dips at 45E towards S. The ore consists of semi-massive pyrrhotite, pyrite, pentlandite, and chalcopyrite in a medium grained gabbro. Samples 01-04 were all collected at the tailings; sample 04 is a collection. Massive sulphide was also collected from the tailings (sample 05). About 800m E at 100m a.s.l., at UTM coordinates 585100 7701980, a 10m long adit with a 20m3 tailings heap has been driven towards N. The gabbro is only mineralized at the adit entrance, with a 2-3m thickness, consisting of weak impregnation with pyrrhotite, pyrite, and chalcopyrite (sample 06). Six holes up to almost 200m deep were drilled by Store Norske Gull in 2008: The cores did not reveal new mineralization of significance but gave information relevant to the assessment of the potential of the Hamn area. Olivine (forsterite)-rich cumulates in the Hamn complex are uniformly depleted in Ni - to a level of ca. 600 ppm, which clearly suggests that the magma had already been partially depleted in Ni prior to the crystallization of these cumulates. This episode of sulphur saturation may be the one that formed the Hamn mineralization or may have led to formation of sulphides in a lower-crustal level magma chamber part of which may be the mineralization seen at the surface. |
Bibliography: |
| From NGU's Reference Archive: |
| Bryn, E.; Lenschow, J. , 1917 |
| Rapport over Senjen Nikkelverk. |
| ;Norges geologiske undersøkelse;TEKNISK RAPPORT;Bergarkivet; No.BA 2591;2 pages |
| Abstract: | |
| Kort beskrivelse av beliggenhet, drift og produksjon, malmens utstrekning, transport og vannkraft. I en kort konklusjon anbefales diamantboring. |
| Bugge, C. , 1935 |
| Rapport over Senjens nikkelverk. |
| ;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 840;4 pages |
| Abstract: | |
| Det har vært drift fra 1872 til 1886. Malmen er magnetkis med ca. 0,9 % nikkel og noe kobberkis. Sidebergarten er gabbro. Forekomsten er anbefalt undersøkt nærmere med diamantboring. Anslått behov for boring er ca. 300 meter. |
| Singsaas, Per , 1962 |
| Egenspenningsmålinger Havn Nikkelgrube. |
| ;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.322;5 pages |
| Pollack , 1940 |
| Aktennotiz betreffend der Nickellagerstette Senjen. |
| ;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 842;2 pages |
| Abstract: | |
| Innledning med geografisk beskrivelse og historikk. Videre følger en malmgeologisk del som behandler malmtyper, mektigheter og utstrekning i felt. Tilslutt noe om gruvedriften og avbygginger. |
| References not to be found in NGU's Reference Archive.: |
| Boyd, R., Often, M. (2009): The Geological Setting of the Hamn Nickel Deposit, Senja, Troms. NGU Report 2009.035. Clients: Store Norske Gull and NGU. 24p. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| TR0447.01 | Bedrock |
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| TR0447.02 | Bedrock |
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| TR0447.03 | Bedrock |
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| TR0447.04 | Dump |
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| TR0447.05 | Bedrock |
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| NB! All analyse values are shown at the end of the printout.: |
Name of Locality: Skjerp 1 |
| (Object Id: 1740 2,01,00) |
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| Location |
| County: | Troms | Municipality: | Senja (5530) |
| Map 1:50000: | Gryllefjord (1333-1) | Map 1:250000: | Tromsø |
| Coordinate system: | EU89-UTM Zone 34 |
| East: | 349661 m. | North: | 7704979 m. |
| Longitude: | 17.1671020 | Latitude: | 69.4117060 |
| Show on map |
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| Resource |
| Resource Type: | Ferroalloys (Cr,Ni,Co,V,Mo,W) | Resource Subtype: | Nickel | |
| Element(s): | Ni Cu |
| Resources and production |
| Activity: | Pitting | Reserves: | ||
| Operating method: | Historical production: |
Information(s) in free text format |
| Free text |
| Ca. 800 m mot øst og 100 m.o.h. (UTM 585100 7701980) er det en 10 m lang stoll mot nord (20 m3 tipp). Gabbroen er mineralisert bare ved stollinnslaget over 2-3 m mektighet. Det er her bare svak disseminasjon av svovelkis, magnetkis og kobberkis (06). |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| TR0447.06 | Bedrock |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 5530 - 002 Hamn |
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# |
| TR0447.01 | Bedrock | 3810 | 78 | 89 | 813 | 11000 | -16.2 | 23.0 |
| TR0447.02 | Bedrock | 7140 | 95 | 87 | 904 | 12200 | -16.2 | 57.0 |
| TR0447.03 | Bedrock | 14300 | 104 | -81 | 219 | 3580 | -16.2 | 95.0 |
| TR0447.04 | Dump | 5720 | 58 | -81 | 545 | 7350 | -16.2 | 18.0 |
| TR0447.05 | Bedrock | 7580 | 90 | -81 | 841 | 15000 | -16.2 | 20.0 |
| TR0447.06 | Bedrock | 1320 | 24 | -5 | 34 | 207 | -1.0 | 14.0 |
| ------------------ |
| Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sn* | Sb* | Bi* |
| TR0447.01 | 45.0 | 135.0 | -20 | -16.2 | 100 | -16.20 | -20 | -20 | -20 |
| TR0447.02 | 281.0 | 838.0 | -20 | -16.2 | 73 | -16.20 | -20 | -20 | -20 |
| TR0447.03 | 235.0 | 50.0 | -20 | -16.2 | 105 | -16.20 | -20 | -20 | -20 |
| TR0447.04 | 100.0 | 106.0 | -20 | -16.2 | 173 | -16.20 | -20 | -20 | -20 |
| TR0447.05 | 44.0 | 226.0 | -20 | -16.2 | 148 | -16.20 | -20 | -20 | -20 |
| TR0447.06 | 7.0 | 10.0 | -20 | -1.0 | 137 | -1.00 | -20 | -20 | -20 |
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| Sample No. | S% | V* | Cr* | Mn* | Fe% | Th* | U* | Sr* | La* |
| TR0447.01 | 14.10 | 64 | 453 | 752 | 30.90 | -30.00 | -30.00 | 48.0 | -16.20 |
| TR0447.02 | 15.40 | 58 | 550 | 676 | 33.80 | -30.00 | -30.00 | -32.4 | -16.20 |
| TR0447.03 | 5.20 | 35 | 261 | 289 | 8.96 | -30.00 | -30.00 | 95.4 | -16.20 |
| TR0447.04 | 9.30 | 131 | 227 | 253 | 17.40 | -30.00 | -30.00 | 77.7 | -16.20 |
| TR0447.05 | 16.60 | 45 | 153 | 298 | 28.10 | -30.00 | -30.00 | 112.0 | -16.20 |
| TR0447.06 | .67 | 25 | 8 | 180 | 4.40 | -30.00 | -30.00 | 147.0 | -1.00 |
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| Sample No. | B* | ||||||||
| TR0447.01 | -81 | ||||||||
| TR0447.02 | -81 | ||||||||
| TR0447.03 | -81 | ||||||||
| TR0447.04 | -81 | ||||||||
| TR0447.05 | -81 | ||||||||
| TR0447.06 | -5 |
| The fact sheet was created on 29.04.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |