(Last updated: 02.03.2005)
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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Occurence 1833 - 023 Langfjell-Tisteltjønna | |||||
| (Object Id: 2292) (Last updated: 02.03.2005) |
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| Belongs to the Province: Dunderlandsdalen jern |
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| 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: | 7360297 m. |
| Longitude: | 14.5336170 | Latitude: | 66.3616330 |
| Show on map |
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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 | |
| 1970 - 1970 | Geophysics | Company/Institution :Terratest AB/Rana Gruber |
Mineralization |
| Era: | Proterozoic | Period: | Neoproterozoic | |
| Genesis: | Sedex | Form: | Layer | |
| Main texture: | Banded | Min. distribution: | Disseminated (<20 % ore minerals) |
| Main grain size: | Medium grained (1-3 mm) | Main alteration: |
| Strike/Dip: | 120 / 40 | Direction: | 270 | |
| Plunge: | 25 |
| Stratigraphic classification of host rock |
| Era: | Proterozoic | Period: | Neoproterozoic |
| Province: | Caledonides | |
| Geotec.unit: | Rødingsfjell Nappe Complex | |
| Tectonic complex: | Plurdekket | |
| Igneous complex: |
| Group: | Plurdalsgruppen | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Hornblende | Major mineral (>10%) | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Biotite | Subordinate mineral (1-10%) | |
| Gangue mineral | Carbonate | Subordinate mineral (1-10%) | |
| Gangue mineral | Oligoclase | Subordinate mineral (1-10%) | |
| Gangue mineral | Chlorite | Accessory mineral (<1%) | |
| Gangue mineral | Tourmaline | Accessory mineral (<1%) | |
| Ore mineral | Magnetite | Major mineral (>10%) | |
| Ore mineral | Apatite | Subordinate mineral (1-10%) | |
| Ore mineral | Pyrite | Accessory mineral (<1%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Amfibolitt | Extrusive Original rock :Basalt |
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| Metamorphic facies :Amphibolite | |||
| Wall rock | Kvartsglimmerskifer | Sedimentary Original rock :Argillaceous sediment |
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| 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 / 25 | Syn-mineralisation ;...Effect :None |
Information(s) in free text format |
| Free text |
| På Langfjell 50m SV for Tisteltjønna (405) fører et opptil 20m tykt amfibolittlag middelskornet magnetitt (2-3 mm lange flat-trykte mt-korn). Bergarten strekker seg vel 1 km i strøkretningen, men skikkelig mineralisering er det i kun ca. 600 m lengde. Tonnasjen kan dreie seg om 1 mill. tonn 60 m ned langs malmfallet: 600m x 10m x 60m = 360 000m3 sp.v. 3,0 ~ 1080 000 tonn. Modalanalyse av et tynnslip (slip 58) gir (vol.%): 10 % magnetitt 3 % apatitt 49 % kvarts 20 % hornblende 8 % biotitt 6 % karbonat 3 % oligoklas ------------------ 99 % + spor av kloritt, svovelkis og turmalin. |
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: NV-re utkiling |
| (Object Id: 3837 23,01,00) |
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| 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: | 478932 m. | North: | 7360447 m. |
| Longitude: | 14.5291220 | Latitude: | 66.3629650 |
| Show on map |
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| 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: |
Name of Locality: SØ-re utkiling |
| (Object Id: 3838 23,02,00) |
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| 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: | 479482 m. | North: | 7360097 m. |
| Longitude: | 14.5414720 | Latitude: | 66.3598620 |
| 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: |
| 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 |