(Last updated: 25.02.2005)
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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Occurence 1833 - 119 Bjørnsrud | |||||
| (Object Id: 2907) (Last updated: 25.02.2005) |
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| Location |
| County: | Nordland | Municipality: | Rana (1833) |
| Map 1:50000: | Mo i Rana (1927-1) | Map 1:250000: | Mo i Rana |
| Coordinate system: | EU89-UTM Zone 33 |
| East: | 459732 m. | North: | 7366147 m. |
| Longitude: | 14.0981930 | Latitude: | 66.4122070 |
| Show on map |
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| Resource |
| Resource Type: | Ferrous metals(Fe, Mn, Ti) | Resource Subtype: | Iron | |
| Element(s): | Fe |
| Importance |
| Raw material meaning: | Little Importance (reg. 18.02.2015) |
| Resources and production |
| Activity: | Exploration | Reserves: | ||
| Operating method: | Historical production: |
Products |
| Element/product | Crude ore grade or quality | Reg. date | |
| Fe-mag. | 10 % | 12.11.1992 | |
| Fe-total | 28 % | 12.11.1992 |
Operations |
| From - To | Activity | Comments | |
| 1962 - 1962 | Geophysics | Company/Institution :NGU | |
| 1969 - 1970 | Geology | Company/Institution :Rana Gruber |
Mineralization |
| Era: | Proterozoic | Period: | Neoproterozoic | |
| Genesis: | Sedex | Form: | Layer | |
| Main texture: | Banded | Min. distribution: | Semi-massive (20-50 % ore minerals) |
| Main grain size: | Medium grained (1-3 mm) | Main alteration: |
| Strike/Dip: | 290 / 10 | Direction: | 90 | |
| Plunge: | 10 |
| Stratigraphic classification of host rock |
| Era: | Proterozoic | Period: | Neoproterozoic |
| Province: | Caledonides | |
| Geotec.unit: | Rødingsfjell Nappe Complex | |
| Tectonic complex: | Midtre allokton | |
| Igneous complex: |
| Group: | Ørtfjell | Formation: | Dunderland |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Amphibole | Major mineral (>10%) | |
| Ore mineral | Magnetite | Major mineral (>10%) | |
| Ore mineral | Hematite | Major mineral (>10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Unknown | Tonalitt | Intrusive Original rock :Tonalite |
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| Metamorphic facies :Amphibolite | |||
| Unknown | Amfibolitt | Extrusive Original rock :Basalt |
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| Metamorphic facies :Amphibolite |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Unknown | Primary layering | Strike/Dip :290 / 10 | Syn-mineralisation ;...Effect :None |
Information(s) in free text format |
| Free text |
| Bjørnsrud mt.-hem.-malm (225 - 275 m.o.h.) går etter koordinatene: UTM-øst - nord ------------------ Vest for Bjørnsrud tjern: 459550 - 7366550 Øst for Bjørnsrud tjern: 459800 - 7366350 460000 - 7366250 Bjørnsrud-draget SØ-ende: 460550 - 7366000 Bjørnsrudmalmen er både for liten og for fattig for en isolert drift. I malmdraget finner man ofte grovkornet hornblendeskarn som tyder på skyvning i kontakt med den parallelle tonalittgangen i malmens sydgrense. Den totale tonnasjen regnet 50 m etter malmfallet er: Gj.sn. tykkelse Lengde Dyp Tonnasje (sp.v. 3,3) ---------------------------------------------------- Bjørnsrud 3,5 1200m 50m 693000 tonn |
| The fact sheet was created on 06.05.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |