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|
Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 1833 - 019 | |||||
| (Last updated 25.feb.2005) | |||||
Name of Deposit Area : Bergedal-malmen |
| (Object Id : 1833,019,00,00) |
| The deposit area belongs to the Province : Dunderlandsdalen jern |
| Location |
| County : | Nordland (18) | Municipality : | Rana (1833) |
| Map 1:50000: | Storforshei (2027-4) | Map 1:250000: | Mo i Rana |
| Marking point: | Longitude: | 14.5235630 | Latitude: | 66.4203640 |
| EU89-UTM Zone 33 | (Coordinates IS confirmed) |
| X-coord: | 478732 m. | Y-coord: | 7366847 m. |
|
|
| Commodity |
| Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
| Element(s): | Fe |
| Production |
| Activity: | Exploration | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: |
| Importance |
| Public: | Not Assessed (reg. 18.02.2015) |
| Economical: | Not classified/evaluated , (Confirmed 25.feb.2005 by Agnes Raaness) |
Products |
| Element/product | Crude ore grade or quality | |
| FE_MAG | 10-32 % | |
| FE_TOT | 35 % | |
| P | 0.22 % |
Operations |
| From - To | Activity | Comments | |
| 1960 - 1960 | Geophysics | Company/Institution :Geofysisk Malmleting/Rana Gruber | |
| 1966 - 1966 | Geology | Company/Institution :Rana Gruber (studenter, M 1:2000) | |
| 1981 - 1981 | Geology | Company/Institution :Rana Gruber (Søvegjarto, M 1:2000) |
Mineralization |
| Era: | Proterozoic | Period: | Neoproterozoic | |
| Dating: | Method: | |||
| Genesis: | Sedex | Form: | Layer | |
| Main texture: | Banded | Min. distribution: | Massive (>50 % ore minerals) |
| Main grain size: | Medium grained (1-3 mm) | Main alteration: |
| Strike/Dip: | 105 / 50 | Direction: | 270 | |
| Plunge: | 20 |
| Stratigraphic classification of host rock |
| Era: | Proterozoic | Period: | Neoproterozoic |
| Province: | Caledonides | |
| Geotec.unit: | Rødingsfjell Nappe Complex | |
| Tectonic complex: | Ramnålidekket | |
| Igneous complex: |
| Group: | Ørtfjellgruppen | Formation: | Dunderlandformasjonen |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Muscovite | Subordinate mineral (1-10%) | |
| Gangue mineral | Apatite | Subordinate mineral (1-10%) | |
| Gangue mineral | Dolomite | Subordinate mineral (1-10%) | |
| Gangue mineral | Oligoclase | Subordinate mineral (1-10%) | |
| Gangue mineral | Hornblende | Subordinate mineral (1-10%) | |
| Gangue mineral | Biotite | Subordinate mineral (1-10%) | |
| Gangue mineral | Chlorite | Subordinate mineral (1-10%) | |
| Gangue mineral | Epidote | Subordinate mineral (1-10%) | |
| Gangue mineral | Calcite | Subordinate mineral (1-10%) | |
| Gangue mineral | Garnet | Accessory mineral (<1%) | |
| Ore mineral | Hematite | Major mineral (>10%) | |
| Ore mineral | Magnetite | Major mineral (>10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Wall rock | kalkspatmarmor | Sedimentary Original rock :Limestone |
|
| Metamorphic facies :Amphibolite | |||
| Wall rock | Karb.gl.skifer | Sedimentary Original rock :Argillaceous sediment |
|
| Metamorphic facies :Amphibolite |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Host rock | Foliation | Strike/Dip :105 / 50 | Syn-mineralisation ;...Effect :None | |
| Host rock | Primary layering | Strike/Dip :270 / 20 | Syn-mineralisation ;...Effect :None |
Information(s) in free text format |
| Free text |
| Bergedalsmalmen er 1,6 km lang fra Sagelva i vest til Bergedalsrabban i øst. Malmblotningene er best i de østre 600m strøklengde i den bratte nordskrenten til Bergedalsrabban. De vestre 800m strøklengde er malmen oppgitt til å være 20m bred i dagen, men tykkelsen er som vist nedenfor: Malm- Malmareal i profilet tykkelse 60m ned langs malmfallet M.o.h. ----------------------------------------------------------------------------------------------- Profil 0 Sagelva 6m 360m2 140 Profil 160 Harahølet 13m 780m2 150 Profil 260 5m 300m2 150 Profil 360 Tørrbekken 10m 600m2 155 Profil 720 NØ f. Magne Olsen 10m 600m2 175 Profil 920 Bergedalsrabban V. 5+6m 300m2, 360m2 190 Profil 1100 Bergedalsrabban 4m 240m2 210 Profil 1250 Bergedalsrabban 3m 180m2 230 Profil 1550 Bergedalsrabban 2m 120m2 260 60 m ned langs malmfallet blir tonnasjen 2,0 mill. tonn. 6 prøver middelskornet til grovkornet mt.-malm er analysert ved Norsk Jernverk lab. 1981, og gir følgende gj.snittsverdier: 35,2 % Fe-tot. 32,2 % Fe-magn. 0,35 % TiO2 0,27 % MnO 0,22 % P 0,020 % S 400m vest for øst-utkilingen i Bergedalsrabban opptrer en 2x60m linse med fosforrik, finkornet hbl.-mt.-malm med følgende analyser: Fe-tot. Fe-magn. TiO2 MnO P S -------------------------------------------------------------------------- Prøve 24A 24,7 16,8 0,45 0,07 0,93 0,009 Prøve 24B 21,6 12,2 0,41 0,11 0,83 0,034 |
Bibliography: |
| From NGU's Reference Archive: |
| Søvegjarto, U.; Marker, M.; Gjelle, S. , 1989 |
| Storforshei. Berggrunnskart; Storforshei; 20274; 1:50 000; trykt i farger; |
| ;Norges geologiske undersøkelse;KART |
Name of Locality : Tørrbekken 150moh. |
| (Object Id : 1833,019,01,00) |
| Location |
| County : | Nordland (18) | Municipality : | Rana (1833) |
| Map 1:50000: | Storforshei (2027-4) | Map 1:250000: | Mo i Rana |
| Marking point: | Longitude: | 14.5325490 | Latitude: | 66.4190450 |
| EU89-UTM Zone 33 | (Coordinates IS confirmed) |
| X-coord: | 479132 m. | Y-coord: | 7366697 m. |
|
|
| Commodity |
| Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
| Element(s): | Fe |
| Production |
| Activity: | Exploration | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: |
Name of Locality : Bergedalsrabban V. 180moh |
| (Object Id : 1833,019,02,00) |
| Location |
| County : | Nordland (18) | Municipality : | Rana (1833) |
| Map 1:50000: | Storforshei (2027-4) | Map 1:250000: | Mo i Rana |
| Marking point: | Longitude: | 14.5437650 | Latitude: | 66.4181810 |
| EU89-UTM Zone 33 | (Coordinates IS confirmed) |
| X-coord: | 479632 m. | Y-coord: | 7366597 m. |
|
|
| Commodity |
| Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
| Element(s): | Fe |
| Production |
| Activity: | Exploration | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: |
Name of Locality : Bergedalsrabban Ø. 230moh |
| (Object Id : 1833,019,03,00) |
| Location |
| County : | Nordland (18) | Municipality : | Rana (1833) |
| Map 1:50000: | Storforshei (2027-4) | Map 1:250000: | Mo i Rana |
| Marking point: | Longitude: | 14.5516140 | Latitude: | 66.4177550 |
| EU89-UTM Zone 33 | (Coordinates IS confirmed) |
| X-coord: | 479982 m. | Y-coord: | 7366547 m. |
|
|
| Commodity |
| Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
| Element(s): | Fe |
| Production |
| Activity: | Exploration | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: |
Name of Locality : Bergedalsrabban Ø. 260moh |
| (Object Id : 1833,019,04,00) |
| Location |
| County : | Nordland (18) | Municipality : | Rana (1833) |
| Map 1:50000: | Storforshei (2027-4) | Map 1:250000: | Mo i Rana |
| Marking point: | Longitude: | 14.5583490 | Latitude: | 66.4168770 |
| EU89-UTM Zone 33 | (Coordinates IS confirmed) |
| X-coord: | 480282 m. | Y-coord: | 7366447 m. |
|
|
| Commodity |
| Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
| Element(s): | Fe |
| Production |
| Activity: | Exploration | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: |
| The fact sheet was created on 16.05.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |