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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 919 - 017 | |||||
| (Last updated 22.mar.2013) | |||||
Name of Deposit Area : Seljeåsen |
| (Object Id : 0919,017,00,00) |
| Location |
| County : | Aust-Agder (09) | Municipality : | Froland (0919) |
| Map 1:50000: | Nelaug (1612-3) | Map 1:250000: | Arendal |
| Marking point: | Longitude: | 8.6921160 | Latitude: | 58.5244450 |
| EU89-UTM Zone 32 |
| X-coord: | 482068 m. | Y-coord: | 6487141 m. |
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| Commodity |
| Main Type: | Ferroalloys (Cr,Ni,Co,V,Mo,W) | Sub Type: | Nickel | |
| Element(s): | Ni Cu |
| Production |
| Activity: | Exploration | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: |
| Importance |
| Public: | Not Assessed (reg. 20.03.2017) |
| Economical: | Could be significant , (Confirmed 04.mai.2007 by Morten Often) |
Operations |
| From - To | Activity | Comments | |
| 2005 - 2006 | Geophysics | Company/Institution :Falconbridge/Blackstone | |
| Airborne. | |||
| 2006 - 2007 | Core drilling | Company/Institution :Blackstone Ventures Inc. |
Mineralization |
| Era: | Proterozoic | Period: | Mesoproterozoic | |
| Dating: | Method: | |||
| Genesis: | Orthomagmatic formation | Form: | ||
| Main texture: | Min. distribution: |
| Main grain size: | Main alteration: |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Proterozoic | Period: | Mesoproterozoic |
| Province: | South Norwegian Basement Province | |
| Geotec.unit: | Bamble Complex | |
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Formation: |
Information(s) in free text format |
| Free text |
| The Seljeåsen deposit is located at the eastern margin of the Seljeåsen troctolite massif. The bulk of the Fe-Cu-Ni mineralization is contained within a pyroxenite band and towards contacts with large xenoliths of gneiss. The mineralized zone consists of disseminated to network and partly massive ore in a c. 1m thick zone of pyrrhotite with subordinate chalcopyrite and cobalt-bearing pentlandite. Niether the mining history, tonnage or extent of the mineralization is known from this deposit. During the Falconbridge/Blackstone exploration campaign they drilled extensively the occurrence. Geophysical indications and the existence of a significantly larger mafic/ultramafic intrusion than at the other known Bamble deposits, indicated a potential which was, however, not confirmed by the drilling. |
| The fact sheet was created on 03.05.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |