Norsk versjon | |||||
THE ORE DATABASE | |||||
Occurence 1833 - 029 Søndre Dunderland øvre | |||||
(Object Id: 2313) (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: | 492482 m. | North: | 7367597 m. |
Longitude: | 14.8315480 | Latitude: | 66.4277280 |
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: | 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. | ca.12 % | 28.03.1996 | |
Fe-silicate | ca. 7 % | 28.03.1996 | |
P | ca.0.5 % | 28.03.1996 | |
S | ca.0.3 % | 28.03.1996 |
Operations |
From - To | Activity | Comments | |
1970 - 1970 | Geology | Company/Institution :Rana Gruber (Søvegjarto M 1:5000) |
Mineralization |
Era: | Proterozoic | Period: | Neoproterozoic | |
Genesis: | Sedex | Form: | Layer | |
Main texture: | Banded | Min. distribution: | Irregular (scattered) |
Main grain size: | Fine grained (< 1 mm) | Main alteration: |
Strike/Dip: | 30 / 80 | Direction: | 30 | |
Plunge: | 15 |
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 | Amphibole | Major mineral (>10%) | |
Gangue mineral | Quartz | Major mineral (>10%) | |
Gangue mineral | Oligoclase | Subordinate mineral (1-10%) | |
Gangue mineral | Biotite | Subordinate mineral (1-10%) | |
Gangue mineral | Chlorite | Subordinate mineral (1-10%) | |
Gangue mineral | Carbonate | Subordinate mineral (1-10%) | |
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 | Kalkspatmarmor | Sedimentary Original rock :Limestone |
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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 | Primary layering | Strike/Dip :30 / 15 | Syn-mineralisation ;...Effect :None | |
Host rock | Foliation | Strike/Dip :30 / 80 | Syn-mineralisation ;...Effect :None |
Information(s) in free text format |
Free text |
Forekomsten består av en vel 1,6 km lang mt.-mineralisering med bakkeutslag på 9000-16000 gamma. Den kan oppfattes som en nordlig utløper av Lasken-feltet 4 km lenger SSV. Søndre Dunderland øvre-draget (335-435 moh.) ligger 1,1 km øst og sørøst for Søndre Dunderland nedre-draget (140-175 moh.). Det er gått 10 bakkemagnetometriske profiler i draget som domineers av magnetittimpregnert amfibolitt. Mektigheten på mineraliserigen i profilene varierer mellom 15 og 50m. |
Bibliography: |
From NGU's Reference Archive: |
Søvegjarto, Ulrik , 1972 |
Berggrunngeologiske Undersøkelser i Dunderlandsdalen, Nordland. |
;UiO Geologisk fellesråd;AVHANDLING |
Name of Locality: Mobekken |
(Object Id: 3859 29,01,00) |
|
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: | 492782 m. | North: | 7368297 m. |
Longitude: | 14.8382300 | Latitude: | 66.4340140 |
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 |
Description |
50 m mektig magnetometeranomali. |
Name of Locality: 320m S. f. Mobekken |
(Object Id: 3860 29,02,00) |
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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: | 492682 m. | North: | 7368047 m. |
Longitude: | 14.8360040 | Latitude: | 66.4317700 |
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 |
Description |
25 m mektig magnetometeranomali. |
Name of Locality: Innerbekken |
(Object Id: 3861 29,03,00) |
|
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: | 492582 m. | North: | 7367747 m. |
Longitude: | 14.8337800 | Latitude: | 66.4290760 |
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 |
Description |
20-40 m mektig magnetometeranomali. |
Name of Locality: 340m SV Mellombekken |
(Object Id: 3862 29,04,00) |
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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: | 492282 m. | North: | 7367297 m. |
Longitude: | 14.8270850 | Latitude: | 66.4250320 |
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 |
Description |
15 m mektig magnetometeranomali. |
Name of Locality: 800m SSV Mellombekken |
(Object Id: 3863 29,05,00) |
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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: | 492082 m. | North: | 7366847 m. |
Longitude: | 14.8226320 | Latitude: | 66.4209890 |
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 |
Description |
15 m mektig magnetometeranomali. |
The fact sheet was created on 03.05.2024 |
Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
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