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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 605 - 032 | |||||
| (Last updated 25.feb.2005) | |||||
Name of Deposit Area : Øytjern |
| (Object Id : 0605,032,00,00) |
| The deposit area belongs to the Province : Holleia |
| Location |
| County : | Buskerud (06) | Municipality : | Ringerike (0605) |
| Map 1:50000: | Hønefoss (1815-3) | Map 1:250000: | Hamar |
| Marking point: | Longitude: | 10.0347960 | Latitude: | 60.1416800 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 557469 m. | Y-coord: | 6667640 m. |
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| Commodity |
| Main Type: | Ferroalloys (Cr,Ni,Co,V,Mo,W) | Sub Type: | Nickel | |
| Element(s): | Ni Cu |
| Production |
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: | 1 m3 |
| Importance |
| Public: | Little Importance (reg. 18.02.2015) |
| Economical: | Minor interest , (Confirmed 16.feb.2005 by Havard Gautneb) |
Operations |
| From - To | Activity | Comments | |
| Pitting | |||
| 1969 - 1969 | Inspection | Company/Institution :Norsk Hydro A/S | |
| F.M. Vokes & T. Vrålstad | |||
| 2000 - 2000 | Inspection | Company/Institution :NGU mineralressurser |
Mineralization |
| Era: | Proterozoic | Period: | Mesoproterozoic | |
| Dating: | Method: | |||
| Genesis: | Unknown | Form: | ||
| Main texture: | Min. distribution: | Disseminated (<20 % ore minerals) |
| Main grain size: | Medium grained (1-3 mm) | Main alteration: | Silicification |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Proterozoic | Period: | Mesoproterozoic |
| Province: | South Norwegian Basement Province | |
| Geotec.unit: | Kongsberg Complex | |
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Amphibole | Subordinate mineral (1-10%) | |
| Gangue mineral | Biotite | Subordinate mineral (1-10%) | |
| Ore mineral | Pyrite | Major mineral (>10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Wall rock | Banded gneiss | ||
| Metamorphic facies :Amphibolite |
Information(s) in free text format |
| Free text |
| A minor ditch on top of the of the small hill range along the road between Langdalen and Øytjern, difficult to locate in dense, young pinewoods. The ditch is 1H1m by 0.5m deep. The mineralization consists of medium rich pyrite impregnation (<5vol%) of 1-2mm grains in quartz rich rock containing some biotite and amphibole. The mineralized zone is about 0.5m thick, but with very limited extent. |
| The fact sheet was created on 18.05.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |