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THE ORE DATABASE
Occurence 1822 - 002 Mastermoen
(Object Id: 2817)
(Last updated: 29.02.2000)

Location
County: Nordland Municipality: Leirfjord (1822)
Map 1:50000: Elsfjord (1927-3) Map 1:250000: Mo i Rana
Coordinate system: EU89-UTM Zone 33
East: 426092 m. North: 7342867 m.
Longitude: 13.3587710 Latitude: 66.1972750
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Resource
Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Copper
Element(s): Cu Zn As Kis
Importance
Raw material meaning: Not Assessed (reg. 18.02.2015)

Resources and production
Activity: Pitting Reserves:
Operating method: Open pit and underground mining Historical production:


Mineralization
Genesis: Volcex Form: Lens
Main texture: Banded Min. distribution: Disseminated (<20 % ore minerals)
Main grain size: Medium grained (1-3 mm) Main alteration:
Strike/Dip: 105 / 70 Direction: 110
Plunge: 40
Stratigraphic classification of host rock
Era: Period:
Province: Caledonides
Geotec.unit: Helgeland Nappe Complex
Tectonic complex: Øverste allokton
Igneous complex:
Group: Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Plagioclase Major mineral (>10%)
Gangue mineral Amphibole Major mineral (>10%)
Gangue mineral Quartz Major mineral (>10%)
Gangue mineral Biotite Major mineral (>10%)
Gangue mineral Potassic feldspar Subordinate mineral (1-10%)
Ore mineral Pyrite Major mineral (>10%)
Ore mineral Pyrrhotite Major mineral (>10%)
Ore mineral Arsenopyrite Subordinate mineral (1-10%)
Ore mineral Sphalerite Subordinate mineral (1-10%)
Ore mineral Chalcopyrite Subordinate mineral (1-10%)

Lithology:
Relationship Rock Origin
Host rock hornblende-biotittgneis Extrusive
Original rock :Basalt
Metamorphic facies :Amphibolite
Wall rock glimmergneis Sedimentary
Original rock :Greywacke
Metamorphic facies :Amphibolite
Wall rock kalkspatmarmor Sedimentary
Original rock :Limestone
Metamorphic facies :Amphibolite

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Wall rock Foliation Strike/Dip :105 / 70 Post-mineralisation ;...Effect :None
Wall rock Fold axis Strike/Dip :110 / 40 Post-mineralisation ;...Effect :Controls

Information(s) in free text format
Free text
En 5m lang stoll er sprengt inn mot sør. I ligg middels- til grovkornet kalkspatmarmor med litt sulfid-disseminasjon (prøve 01). Innerst i stollen er glimmergneis. Litt over grensa kalkspatmarmor/gneis er et 10cm mektig lag med hornblende-biotittgneis med disseminert kobberkis, magnetkis, svovelkis, sinkblende og arsenkis. 10m mot øst er det sprengt litt i en skrent (1m3 tipp). Kalkspatmarmor i ligg. Over: glimmergneis med uregelmessig (pga. fold: 110/40) sone med mye hornblende. Denne amfibolittiske sonen, som er 20-30cm mektig, fører som i stollen disseminasjon av kobberkis, magnetkis, svovelkis, sinkblende og arsenkis (02 og 03).

Fieldsamples
Sample No. Sample type Miscellanrous
NO0706.01 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Kalkspatmarmor med litt sulfiddisseminasjon.
No. of registrated element analyses = 1
NO0706.02 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Hornbl.-biotittgneis med diss av cpy, po og py.
No. of registrated element analyses = 1
NO0706.03 Bedrock
Sampler: Wilberg, R./...Stored: Løkken
Comment: Hornblende-biotittgneis med diss. av cpy, po og py.
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:


Analyse Results
from
Deposit Area 1822 - 002 Mastermoen

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#
NO0706.01 Bedrock 18 12 107 2 4 1.3 1.0
NO0706.02 Bedrock 3171 6431 24 9 20 4.2 30.0
NO0706.03 Bedrock 4957 3732 15 9 20 6.3 1.0
------------------
Sample No. Pt# Pd# As* Cd* Ba* Mo* Sb* Bi* S%
NO0706.01 3.0 3.0 81 .2 3 1.00 2 2 .13
NO0706.02 4.0 9.0 9845 45.3 37 1.00 2 27 1.59
NO0706.03 3.0 4.0 8350 24.4 22 1.00 2 20 1.57
------------------
Sample No. V* Cr* Mn* Fe% Th* U* W* Sr* La*
NO0706.01 2 1 340 .30 2.00 5.00 1 1433.0 2.00
NO0706.02 16 33 1292 4.69 4.00 5.00 12 62.0 11.00
NO0706.03 12 23 528 3.70 4.00 5.00 27 74.0 11.00
------------------
Sample No. B*
NO0706.01 2
NO0706.02 12
NO0706.03 13


The fact sheet was created on 23.04.2024

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