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THE ORE DATABASE
Occurence 1833 - 003 Håkshaugen
(Object Id: 2148)
(Last updated: 03.11.1999)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Storforshei (2027-4) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 469582 m. North: 7356897 m.
Longitude: 14.3210150 Latitude: 66.3303490
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Resource
Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Zinc
Element(s): Zn Cu
Importance
Raw material meaning: Not Assessed (reg. 18.02.2015)

Resources and production
Activity: Test mining Reserves:
Operating method: Underground mining Historical production: ,15 thousand tons


Operations
From - To Activity Comments
1965 - 1965 Geophysics
1965 - 1966 Geology
1967 - 1967 Core drilling
1976 - 1976 Geophysics

Mineralization
Era: Paleozoic Period: Ordovician
Dating: 489 (-6\+6) million year Method: K/Ar
Genesis: Replacement/Metasomatism Form: Irregular
Main texture: Vein network Min. distribution: Irregular (scattered)
Main grain size: Medium grained (1-3 mm) Main alteration: Skarn formation
Strike/Dip: 90 / 60 Direction: 90
Plunge: 0
Stratigraphic classification of host rock
Era: Proterozoic Period: Neoproterozoic
Province: Caledonides
Geotec.unit: Rødingsfjell Nappe Complex
Tectonic complex: Øverste allokton
Igneous complex:
Group: Plurdalsgruppen Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Calcite Major mineral (>10%)
Gangue mineral Amphibole Major mineral (>10%)
Gangue mineral Pyroxene Major mineral (>10%)
Gangue mineral Garnet Major mineral (>10%)
Gangue mineral Quartz Subordinate mineral (1-10%)
Ore mineral Chalcopyrite Major mineral (>10%)
Ore mineral Sphalerite Major mineral (>10%)
Ore mineral Pyrrhotite Major mineral (>10%)
Ore mineral Pyrite Accessory mineral (<1%)
Ore mineral Marcasite Accessory mineral (<1%)

Lithology:
Relationship Rock Origin
Host rock Skarn Extrusive
Original rock :Basalt
Metamorphic facies :Amphibolite
Wall rock Glimmerskifer Sedimentary
Original rock :Argillaceous sediment
Metamorphic facies :Amphibolite
Wall rock Marmor Sedimentary
Original rock :Limestone
Metamorphic facies :Amphibolite

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Shear plane Strike/Dip :90 / 50 Syn-mineralisation ;...Effect :Controls
Host rock Fold axis Strike/Dip :90 / 0 Post-mineralisation ;...Effect :Controls
Host rock Mineral lineation Strike/Dip :90 / 0 Post-mineralisation ;...Effect :Controls

Information(s) in free text format
Free text
4 skjerp i skarnsonen. Det største er en vannfylt synk med ca. 100 m3 tipp. Blottet ca. 4 m med båndet hedenbergitt-granat-skarn med mm-mektige årer av sinkblende, magnetkis og kobberkis parallelt strøket (prøve 01 og 02). Et knakkprøveprofil på tvers av 4 m utgående viser 4.0 % Zn, 0.11 % Cu og 0.003 % Pb (Olerud 1979). To analyser av Spross (1956): 6.2 % Zn, 0.1 % Cu og 1.0 %, 2.4 % Cu. Hengbergarten er glimmerskifer.

Bibliography:
From NGU's Reference Archive:
Olerud, Svein , 1979
Stratabunden skarn med koppermineraliseringer i Plurdalen, Rana.
;Norges geologiske undersøkelse;RAPPORT;NGU-rapport; No.1556/10D;19 pages
Abstract:
Formålet med undersøkelsene var å kartlegge geologisk området Flatlia-Kalseter og å undersøke malmforekomstene i området. En rekke Cu- og Zn-mineraliseringer fins i en hedenbergittskarnbergart som kan følges mer eller mindre sammenhengende fra Kalseter til Båsmoen i Rana. Skarnsonen antas opprinnelig å være et Cu-holdig basisk sediment som ble isokjemisk metasomatisk omvandlet til kalksilikater og senere breksiert og remobilisert. Magnetkis-kopperkis-mineralisering opptrer som nesten massiv breksje-malm eller som impregnasjon i skarnet. Ingen av de undersøkte forekomstene ansees for å være økonomisk interessante, men skarnsonen fra Flatlia mot Båsmoen kan inneholde større skarnkropper med lavprosentlig Cu-impregnasjon.

References not to be found in NGU's Reference Archive.:
Spross, E. 1956: Bericht über die Untersuchungsarbeiten im Sommer 1956. Upubl. rapp.


Schenk, M. 1987: Skarn formation and mineralization in the Bossmo and Plura area. Unpubl. Diploma in Geology. Swiss Federal Inst. of Technology, Zurich.

Fieldsamples
Sample No. Sample type Miscellanrous
NO0022.01 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Skarn.
No. of registrated element analyses = 1
NO0022.02 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Skarn.
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: Skjerp 1
(Object Id: 2969 3,01,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Storforshei (2027-4) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 469632 m. North: 7356887 m.
Longitude: 14.3221340 Latitude: 66.3302640
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Resource
Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Zinc
Element(s): Zn Cu
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
Synk (skjerp 1, med 30 m3 tipp) i samme skarnsone.

Name of Locality: Skjerp 2
(Object Id: 2971 3,02,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Storforshei (2027-4) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 469732 m. North: 7356887 m.
Longitude: 14.3243660 Latitude: 66.3302740
Show on map
Resource
Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Zinc
Element(s): Zn Cu
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
Liten synk (skjerp 2). Svak impregnasjon og stedvis små linseansamlinger av kobberkis.

Name of Locality: Skjerp 3
(Object Id: 2970 3,03,00)
Location
County: Nordland Municipality: Rana (1833)
Map 1:50000: Storforshei (2027-4) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 469382 m. North: 7356817 m.
Longitude: 14.3165700 Latitude: 66.3296110
Show on map
Resource
Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Zinc
Element(s): Zn Cu
Resources and production
Activity: Pitting Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
Skjerp 3: Lite skjerp i skarn med svak kobberkis-mineralisering.

Analyse Results
from
Deposit Area 1833 - 003 Håkshaugen

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#
NO0022.01 Bedrock 1176 73318 14 83 8 1.3 9.0
NO0022.02 Bedrock 17256 358 6 76 17 8.5 8.0
------------------
Sample No. Pt# Pd# As* Cd* Ba* Mo* Sb* Bi* S%
NO0022.01 2.0 6.0 13 478.4 4 3.00 7 15 6.12
NO0022.02 4.0 3.0 10 4.5 5 1.00 2 4 4.55
------------------
Sample No. V* Cr* Mn* Fe% Th* U* W* Sr* La*
NO0022.01 3 5 1527 5.55 8.00 6.00 1 233.0 12.00
NO0022.02 1 3 1087 7.47 1.00 5.00 4 63.0 2.00
------------------
Sample No. B*
NO0022.01 22
NO0022.02 2

The fact sheet was created on 04.05.2024
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