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THE ORE DATABASE
Occurence 1833 - 120 Bjuråga
(Object Id: 19030)
(Last updated: 08.11.2019)
Belongs to the Province: Mofjellet sink-bly
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: 482175 m. North: 7349698 m.
Longitude: 14.6031110 Latitude: 66.2667340
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Resource
Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Sulphides
Element(s): Kis
Importance
Raw material meaning: Not Assessed (reg. 18.02.2015)
Historical: No , (Confirmed 08.feb.2017 by Terje Bjerkgård)

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


Mineralization
Era: Proterozoic Period: Neoproterozoic
Genesis: Unknown Form:
Main texture: Vein network Min. distribution: Semi-massive (20-50 % ore minerals)
Main grain size: Fine grained (< 1 mm) Main alteration: No country rock alteration
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Proterozoic Period: Neoproterozoic
Province: Caledonides
Geotec.unit: Rødingsfjell Nappe Complex
Tectonic complex: Uppermost Allochthon
Igneous complex:
Group: Mofjell Group Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Quartz Major mineral (>10%)
Gangue mineral Graphite Subordinate mineral (1-10%)
Ore mineral Pyrrhotite Major mineral (>10%)
Ore mineral Pyrite Major mineral (>10%)

Lithology:
Relationship Rock Origin
Host rock Graphitic gneiss Sedimentary
Metamorphic facies :Amphibolite
Wall rock Amphibolite Extrusive
Metamorphic facies :Amphibolite

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Foliation Strike/Dip :120 / 30 Post-mineralisation ;...Effect :Controls

Information(s) in free text format
Free text
Sprengt litt (3 m3 tipp) i skrent i kanten av elva. Her sitter mineraliseringen i grafittgneiss i kontakt med amfibolitt. Utgående sees ikke, men over en mektighet på minst 10 cm (dømt etter stuffer fra tippen) opptrer semimassiv-massiv svovelkis-magnetkis-mineralisering (3 prøver). Mineraliseringen domineres av finkornet, massiv svovelkis med breksjetekstur: Gneisfragmenter og årer av gangart og magnetkis (prøve NO0046.1). Magnetkis er anriket i sidebergkontakten (NO0046.3). Hengberget er hornblendegneis.

Fieldsamples
Sample No. Sample type Miscellanrous
NO0046.1 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Opprinnelig prøve nr. NO0042.11. Finkornet massiv py, breksjert med gneisfragmenter og po-gangart-årer.
No. of registrated element analyses = 1
NO0046.2 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Opprinnelig prøve nr. NO0042.12. Semimassiv po-py mineralisering.
No. of registrated element analyses = 1
NO0046.3 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Opprinnelig prøve nr. NO0042.13. Finkornet, massiv py med po anriket langs kontakten til glimmergneis.
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Analyse Results
from
Deposit Area 1833 - 120 Bjuråga

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#
NO0046.1 Bedrock 91 14 4 85 36 .4 8.0
NO0046.2 Bedrock 301 19 11 71 78 1.0 5.0
NO0046.3 Bedrock 190 4 5 35 60 .6 10.0
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Sample No. Pt# Pd# As* Cd* Ba* Mo* Sb* Bi* S%
NO0046.1 4.0 12.0 215 .2 4 4.00 2 2 42.34
NO0046.2 1.0 1.0 125 .2 4 1.00 2 2 25.09
NO0046.3 1.0 7.0 166 .2 2 1.00 2 2 33.75
------------------
Sample No. V* Cr* Mn* Fe% Th* U* W* Sr* La*
NO0046.1 4 5 186 21.52 4.00 5.00 1 2.0 2.00
NO0046.2 9 5 354 37.40 1.00 5.00 1 5.0 2.00
NO0046.3 3 2 256 27.62 2.00 5.00 1 1.0 2.00
------------------
Sample No. B*
NO0046.1 8
NO0046.2 14
NO0046.3 13

The fact sheet was created on 08.05.2024
Questions or comments regarding the fact sheet can be emailed to:
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