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Occurence 4630 - 010 Hosanger
(Object Id: 4818)
(Last updated: 06.10.2017)

County: Vestland Municipality: Osterøy (4630)
Map 1:50000: Stanghelle (1216-3) Map 1:250000: Bergen
Coordinate system: EU89-UTM Zone 32
East: 307017 m. North: 6718092 m.
Longitude: 5.4801890 Latitude: 60.5523510
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Resource Type: Ferroalloys (Cr,Ni,Co,V,Mo,W) Resource Subtype: Nickel
Element(s): Ni Cu Co
Raw material meaning: Little Importance (reg. 18.02.2015)

Resources and production
Activity: Mining Reserves:
Operating method: Underground mining Historical production: 460 thousand tons

Element/product Crude ore grade or quality Reg. date
Co 0,045 % 21.05.2007
Cu 0,35 % 21.05.2007
Ni 1,05 % 21.05.2007

From - To Activity Comments
1883 - 1894 Regular production
1899 - 1901 Regular production
1915 - 1926 Regular production
1933 - 1945 Regular production

Era: Proterozoic Period: Mesoproterozoic
Genesis: Orthomagmatic formation Form: Irregular
Main texture: Structureless Min. distribution: Massive (>50 % ore minerals)
Main grain size: Medium grained (1-3 mm) Main alteration:
Strike/Dip: Direction:
Stratigraphic classification of host rock
Era: Proterozoic Period: Mesoproterozoic
Province: Caledonian Basement Province
Geotec.unit: Lindås Nappe Complex
Tectonic complex:
Igneous complex:
Group: Formation:

Relationship Mineral Amount
Ore mineral Pyrrhotite Major mineral (>10%)
Ore mineral Chalcopyrite Subordinate mineral (1-10%)
Ore mineral Pyrite Subordinate mineral (1-10%)
Ore mineral Pentlandite Subordinate mineral (1-10%)

Relationship Rock Origin
Host rock Norite Intrusive
Metamorphic facies :Granulite
Wall rock Quartzofeldspathic gneiss
Metamorphic facies :Granulite

Information(s) in free text format
Free text
The Hosanger district comprise several nickel-copper deposits hosted by the lower parts of a pervasively deformed body of norite, the Hosanger intrusion, belonging to the Lindås Nappe. The first deposit was found in 1875, and mining continued intermittently in the area until 1945 when the operations closed due to the exhaustion of richer ore. Early operations, until 1898, focused on massive mineralisation containing 2–4 % Ni in the southern part of the intrusion. These bodies were socalled "offset" ore, as they occur as veins in the wall rock. The Litland ore was discovered in 1899, but was first mined in 1915, and the Lien ore, further north, was discovered in 1915 but was not mined until 1938. Production figures show Ni grades varying from 0.67 to 1.215 % and Cu from 0.285 to 0.44 % from the group of deposits as a whole. Blackstone Ventures, who currently (2010) hold the claims to the deposit, state that past production totalled 460,000 t grading 1.05 % Ni, 0.35 % Cu and 0.05 % Co.

From NGU's Reference Archive:
Boyd, R.; Nixon, F. , 1985
Norwegian nickel deposits: a review.
;Geologian Tutkimuskeskus / Geological Survey of Finland;ARTIKKEL;Bulletin; Nickel-copper deposits of the Baltic Shield and Scandinavian; Caledonides.; No.333;363-394 pages

The fact sheet was created on 22.01.2022

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