Norsk versjon | |||||
THE ORE DATABASE | |||||
Occurence 1833 - 016 Knusermalmen | |||||
(Object Id: 2277) (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: | 479082 m. | North: | 7365147 m. |
Longitude: | 14.5316890 | Latitude: | 66.4051380 |
Show on map |
|
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: | Pitting | Reserves: | 950 thousand tons | |
Operating method: | Historical production: |
Products |
Element/product | Crude ore grade or quality | Reg. date | |
Fe-mag. | 20 % | 26.03.1996 | |
Fe-total | 35.5 % | 26.03.1996 | |
P | 0.2 % | 26.03.1996 |
Operations |
From - To | Activity | Comments | |
1960 - 1960 | Geophysics | Company/Institution :NGU/Rana Gruber | |
1963 - 1963 | Geology | Company/Institution :Rana Gruber (K. Ryssdal) | |
1976 - 1976 | Geology | Company/Institution :Rana Gruber (U. Søvegjarto) |
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: | 120 / 40 | 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 | Biotite | 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 | Apatite | Subordinate mineral (1-10%) | |
Gangue mineral | Muscovite | 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%) | |
Ore mineral | Hematite | Major mineral (>10%) | |
Ore mineral | Magnetite | Major mineral (>10%) |
Lithology: |
Relationship | Rock | Origin | |
Wall rock | Lys glimmerskifer | Extrusive Original rock :Rhyolite |
|
Metamorphic facies :Amphibolite | |||
Wall rock | Dolomittmarmor | Sedimentary Original rock :Dolomite |
|
Metamorphic facies :Amphibolite | |||
Wall rock | Kalkspatmarmor | Sedimentary Original rock :Limestone |
|
Metamorphic facies :Amphibolite |
Structures |
Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
Host rock | Foliation | Strike/Dip :120 / 40 | Syn-mineralisation ;...Effect :None | |
Host rock | Primary layering | Strike/Dip :270 / 20 | Syn-mineralisation ;...Effect :None |
Information(s) in free text format |
Free text |
Knusermalmen er en bladet hematittmalm/finkornet magnetittmalm. Den ligger under jord og ble geologisk kartlagt i 1963 under Rana Grubers anleggstid. Det er malmsnitt i a) jernbanetunnel mellom malmknuser og malmsilo, Storforshei. b) transport-tunnel mellom malmknuser og malmsilo, Storforshei. Dessuten har man under anleggstiden av kalkknuser/kalkomlastest. i 1976 fått et malmsnitt i dagen ved: c) Kalkomlastestasjonen. Malmen er vanligvis 5-7 m tykk (men også 3-9 m) og har en 2-5 m tykk kalk i hengen og dolomitt i liggen. Ifølge magnetiske bakkemålinger har malmen 900 m strøklengde. Tonnasjen kan regnes 60 m nedover langs malmfallet: 900m x 5m x 60m = 270000 m3 sp.v. 3,5 gir 945000 t. |
Bibliography: |
From NGU's Reference Archive: |
Aalstad, I. , 1964 |
Tyngdemåling Ørtvann- og jernbanetunnel Storforshei/Nord-Rana |
;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.543;4 pages |
Søvegjarto, U.; Marker, M.; Gjelle, S. , 1989 |
Storforshei. Berggrunnskart; Storforshei; 20274; 1:50 000; trykt i farger; |
;Norges geologiske undersøkelse;KART |
Name of Locality: NV-ende |
(Object Id: 3799 16,01,00) |
|
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: | 478682 m. | North: | 7365497 m. |
Longitude: | 14.5226740 | Latitude: | 66.4082500 |
Show on map |
|
Resource |
Resource Type: | Ferrous metals(Fe, Mn, Ti) | Resource Subtype: | Iron | |
Element(s): | Fe |
Resources and production |
Activity: | Pitting | Reserves: | ||
Operating method: | Historical production: |
Name of Locality: Jernbanestoll |
(Object Id: 3800 16,02,00) |
|
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: | 479132 m. | North: | 7365097 m. |
Longitude: | 14.5328160 | Latitude: | 66.4046930 |
Show on map |
|
Resource |
Resource Type: | Ferrous metals(Fe, Mn, Ti) | Resource Subtype: | Iron | |
Element(s): | Fe |
Resources and production |
Activity: | Pitting | Reserves: | ||
Operating method: | Historical production: |
Name of Locality: Under adm.bygg |
(Object Id: 3802 16,03,00) |
|
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: | 479282 m. | North: | 7365047 m. |
Longitude: | 14.5361830 | Latitude: | 66.4042540 |
Show on map |
|
Resource |
Resource Type: | Ferrous metals(Fe, Mn, Ti) | Resource Subtype: | Iron | |
Element(s): | Fe |
Resources and production |
Activity: | Pitting | Reserves: | ||
Operating method: | Historical production: |
Name of Locality: SØ-ende |
(Object Id: 3801 16,04,00) |
|
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: | 479432 m. | North: | 7364997 m. |
Longitude: | 14.5395490 | Latitude: | 66.4038150 |
Show on map |
|
Resource |
Resource Type: | Ferrous metals(Fe, Mn, Ti) | Resource Subtype: | Iron | |
Element(s): | Fe |
Resources and production |
Activity: | Pitting | Reserves: | ||
Operating method: | Historical production: |
The fact sheet was created on 29.04.2024 |
Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
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