(Last updated: 29.02.2000)
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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Occurence 1822 - 002 Mastermoen | |||||
| (Object Id: 2817) (Last updated: 29.02.2000) |
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| 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 |
| Show on map |
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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 |
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| Metamorphic facies :Amphibolite | |||
| Wall rock | glimmergneis | Sedimentary Original rock :Greywacke |
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| Metamorphic facies :Amphibolite | |||
| Wall rock | kalkspatmarmor | Sedimentary Original rock :Limestone |
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| 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 |
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| NO0706.02 | Bedrock |
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| NO0706.03 | Bedrock |
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| 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 03.11.2025 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2025 Geological Survey of Norway |