Norsk versjon
THE ORE DATABASE
Occurence 1833 - 019 Bergedal-malmen
(Object Id: 2281)
(Last updated: 25.02.2005)
Belongs to the Province: Dunderlandsdalen jern
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: 478732 m. North: 7366847 m.
Longitude: 14.5235630 Latitude: 66.4203640
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Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron
Element(s): Fe
Importance
Raw material meaning: Not Assessed (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. 10-32 % 27.03.1996
Fe-total 35 % 27.03.1996
P 0.22 % 27.03.1996

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
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: 3810 19,01,00)
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: 479132 m. North: 7366697 m.
Longitude: 14.5325490 Latitude: 66.4190450
Show on map
Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron
Element(s): Fe
Resources and production
Activity: Exploration Reserves:
Operating method: Historical production:


Name of Locality: Bergedalsrabban V. 180moh
(Object Id: 3811 19,02,00)
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: 479632 m. North: 7366597 m.
Longitude: 14.5437650 Latitude: 66.4181810
Show on map
Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron
Element(s): Fe
Resources and production
Activity: Exploration Reserves:
Operating method: Historical production:


Name of Locality: Bergedalsrabban Ø. 230moh
(Object Id: 3812 19,03,00)
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: 479982 m. North: 7366547 m.
Longitude: 14.5516140 Latitude: 66.4177550
Show on map
Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron
Element(s): Fe
Resources and production
Activity: Exploration Reserves:
Operating method: Historical production:


Name of Locality: Bergedalsrabban Ø. 260moh
(Object Id: 3813 19,04,00)
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: 480282 m. North: 7366447 m.
Longitude: 14.5583490 Latitude: 66.4168770
Show on map
Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron
Element(s): Fe
Resources and production
Activity: Exploration Reserves:
Operating method: Historical production:

The fact sheet was created on 01.05.2024
Questions or comments regarding the fact sheet can be emailed to:
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