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THE ORE DATABASE
Occurence 1833 - 027 Stupforsmo-malmen
(Object Id: 2311)
(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: 485582 m. North: 7363397 m.
Longitude: 14.6774140 Latitude: 66.3898070
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Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron
Element(s): Fe P
Importance
Raw material meaning: Little Importance (reg. 18.02.2015)

Resources and production
Activity: Exploration Reserves:
Operating method: Historical production:


Operations
From - To Activity Comments
1969 - 1969 Geology Company/Institution :Rana Gruver (U. Søvegjarto)
1970 - 1970 Geophysics Company/Institution :Terratest AB/Rana Gruver

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: 240 / 40 Direction: 240
Plunge: 10
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 Cummingtonite Major mineral (>10%)
Gangue mineral Quartz Major mineral (>10%)
Gangue mineral Garnet Subordinate mineral (1-10%)
Ore mineral Magnetite Major mineral (>10%)
Ore mineral Apatite Subordinate mineral (1-10%)

Lithology:
Relationship Rock Origin
Wall rock Glimmerskifer Sedimentary
Original rock :Greywacke
Metamorphic facies :Amphibolite
Wall rock Karb.gl.skifer Sedimentary
Original rock :Argillaceous sediment
Metamorphic facies :Amphibolite
Wall rock Dolomitt Sedimentary
Original rock :Dolomite
Metamorphic facies :Amphibolite

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Primary layering Strike/Dip :240 / 10 Syn-mineralisation ;...Effect :None
Host rock Foliation Strike/Dip :240 / 40 Syn-mineralisation ;...Effect :None

Information(s) in free text format
Free text
Mineraliseringen er særlig apatitt-cummingtonitrik og består av følgende 3 laglinser langs en 5 km lang strøklengde: Lengde Tykkelse ----------------------------------------------------------------------- Haralibekken 1000 m 3 lag 0,5-2m tykke +Lomtjønnmyrbekken innenfor 30m bredde Rasthaugen 500m Et lag ca. 2m V f. Oppdalsli 300m 5-10m Haralibekkdraget er den rikeste mineraliseringen med middelskornet magnetitt. Det er ikke sammenheng mellom de tre ovennevnte malmer.

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: Haralibekken
(Object Id: 3849 27,01,00)
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: 486782 m. North: 7364197 m.
Longitude: 14.7041790 Latitude: 66.3970370
Show on map
Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron
Element(s): Fe P
Resources and production
Activity: Exploration Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
Haralibekken 1000 m lengde 3 lag 0,5-2m tykke +Lomtjønnmyrbekken innenfor 30m bredde Haralibekkdraget er den rikeste mineraliseringen med middelskornet magnetitt.

Name of Locality: Bekk fra Lomtjønnmyr
(Object Id: 3850 27,02,00)
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: 486432 m. North: 7363997 m.
Longitude: 14.6963680 Latitude: 66.3952280
Show on map
Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron
Element(s): Fe P
Resources and production
Activity: Exploration Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
Haralibekken 1000 m lengde 3 lag 0,5-2m tykke +Lomtjønnmyrbekken innenfor 30m bredde

Name of Locality: V f. Oppdalshei
(Object Id: 3851 27,03,00)
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: 483532 m. North: 7362847 m.
Longitude: 14.6316190 Latitude: 66.3847720
Show on map
Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron
Element(s): Fe P
Resources and production
Activity: Exploration Reserves:
Operating method: Historical production:


Information(s) in free text format
Free text
V f. Oppdalsli: 300m lengde. 5-10m mektighet.

The fact sheet was created on 02.05.2024
Questions or comments regarding the fact sheet can be emailed to:
ressursdatabaser@ngu.no
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