(Last updated: 25.02.2005)
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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Occurence 5042 - 004 Skograudberget | |||||
| (Object Id: 215) (Last updated: 25.02.2005) |
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| Location |
| County: | Trøndelag | Municipality: | Lierne (5042) |
| Map 1:50000: | Murusjøen (1923-1) | Map 1:250000: | Grong |
| Coordinate system: | EU89-UTM Zone 33 |
| East: | 449181 m. | North: | 7148348 m. |
| Longitude: | 13.9437060 | Latitude: | 64.4568710 |
| Show on map |
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| Resource |
| Resource Type: | Ferroalloys (Cr,Ni,Co,V,Mo,W) | Resource Subtype: | Nickel | |
| Element(s): | Ni Cu Co |
| Importance |
| Raw material meaning: | Little Importance (reg. 18.02.2015) |
| Resources and production |
| Activity: | Exploration | Reserves: | ||
| Operating method: | Historical production: |
Products |
| Element/product | Crude ore grade or quality | Reg. date | |
| Cu | 0.2 % | 16.03.1993 | |
| Ni | 1.0 % | 16.03.1993 |
Operations |
| From - To | Activity | Comments | |
| 1968 - 1968 | Pitting | ||
| 1975 - 1975 | Geology | Company/Institution :NGU | |
| 1977 - 1977 | Geology | Company/Institution :Grong Gruber A/S | |
| 1977 - 1978 | Geophysics | Company/Institution :Grong Gruber A/S | |
| 1978 - 1978 | Geochemistry | Company/Institution :Grong Gruber A/S | |
| 1991 - 1991 | Sampling | Company/Institution :NGU |
Mineralization |
| Era: | Paleozoic | Period: | ||
| Genesis: | Orthomagmatic formation | Form: | Irregular | |
| Main texture: | Vein network | Min. distribution: | Irregular (scattered) |
| Main grain size: | Medium grained (1-3 mm) | Main alteration: |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Paleozoic | Period: |
| Province: | Caledonides | |
| Geotec.unit: | Seve Nappe Complex | |
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Namsen | Formation: | Lillevatn |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Amphibole | Major mineral (>10%) | |
| Gangue mineral | Serpentine | Subordinate mineral (1-10%) | |
| Gangue mineral | Olivine | Subordinate mineral (1-10%) | |
| Ore mineral | Pyrrhotite | Major mineral (>10%) | |
| Ore mineral | Chalcopyrite | Subordinate mineral (1-10%) | |
| Ore mineral | Magnetite | Subordinate mineral (1-10%) | |
| Ore mineral | Pentlandite | Accessory mineral (<1%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Serpentinite | Intrusive Original rock :Peridotite |
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| Metamorphic facies :Amphibolite | |||
| Wall rock | Mica schist | Sedimentary Original rock :Argillaceous sediment |
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| Metamorphic facies :Amphibolite |
Information(s) in free text format |
| Free text |
| The deposit is located on the southern summit of the Skograudberget mountain, circa 20km E of Nordli center, and about 500m along an accessible forestry road to the mineralization. The area is located in a protected forest reserve with bears. Sporadic pyrrhotite mineralization in ultrabasite, partly massive, partly schlieren. The ultrabasite body (possibly metaperidotite) is parted by an EW running cleft, probably a thrust. The body covers an area of at least 1000H750m and is embedded in a Namsen Group mica schist. Sulphides have been observed in 4 locations near the trigonal point. An analysis by Grong Gruber reveals: 0.94wt% Cu, 0.44wt% Ni, 0.00wt% Zn. The northern summit has no mineralization. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| LS91153 | Bedrock |
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| LS91154 | Bedrock |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 5042 - 004 Skograudberget |
Element analyses |
( *=parts pr. million, #=parts pr.billion, Negative values means below detection limit value.) |
| Sample No. | Sample Type | Cu* | Zn* | Pb* | Co* | Ni* | Ag* | Au# |
| LS91153 | Bedrock | 1602 | 1012 | 13 | 645 | 12751 | 2.5 | 7.0 |
| LS91154 | Bedrock | 1886 | 120 | 13 | 397 | 7880 | 2.4 | 6.0 |
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| Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sb* | Bi* | S% |
| LS91153 | 26.0 | 403.0 | 2 | 1.9 | 1 | 2.00 | 3 | 2 | 16.10 |
| LS91154 | 16.0 | 408.0 | 2 | .2 | 1 | 3.00 | 2 | 2 | 10.60 |
| ------------------ |
| Sample No. | V* | Cr* | Mn* | Fe% | Th* | U* | W* | Sr* | La* |
| LS91153 | 10 | 75 | 351 | 24.15 | 2.00 | 5.00 | 1 | 2.0 | 2.00 |
| LS91154 | 11 | 47 | 459 | 20.16 | 1.00 | 5.00 | 1 | 34.0 | 2.00 |
| ------------------ |
| Sample No. | B* | ||||||||
| LS91153 | 10 | ||||||||
| LS91154 | 11 |
| The fact sheet was created on 02.05.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |