(Last updated: 28.03.2020)
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Norsk versjon | ||||
| THE ???? DATABASE | |||||
| Occurence 0 - 000 FEIL | |||||
| (Object Id: ) (Last updated: 28.03.2020) |
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| Belongs to the Province: Bamble Nikkelgruver |
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| Location |
| County: | Municipality: | Mangler () |
| Map 1:50000: | Kragerø (1712-4) | Map 1:250000: | Arendal |
| Coordinate system: | UTM-Zone 33 - EUREF89/WGS84 |
| East: | 530400 m. | North: | 6535350 m. |
| Longitude: | 9.5284280 | Latitude: | 58.9553420 |
| Show on map |
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| Resource |
| Resource Type: | Ferroalloys (Cr,Ni,Co,V,Mo,W) | Resource Subtype: | Nickel | |
| Element(s): | Ni Cu |
| Importance |
| Raw material meaning: | Little Importance (reg. 18.02.2015) |
| Resources and production |
| Activity: | Test mining | Reserves: | ||
| Operating method: | Underground mining | Historical production: |
Mineralization |
| Era: | Proterozoic | Period: | Mesoproterozoic | |
| Genesis: | Unknown | Form: | Irregular | |
| Main texture: | Structureless | 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: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Ore mineral | Pyrrhotite | Major mineral (>10%) | |
| Ore mineral | Chalcopyrite | Subordinate mineral (1-10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Wall rock | Biotite-quartz-feldspar gneiss | Sedimentary | |
| Metamorphic facies :Amphibolite | |||
| Wall rock | Granite pegmatite | Intrusive | |
| Wall rock | Gabbro | Intrusive |
Information(s) in free text format |
| Free text |
| Dette er en liten gruve som ligger rett øst for husene på Midre Hartveit. Den består av en ca. 30 m lang stoll som går inn i nord-østlig retning. Den går inn langs foliasjonen i en lys biotittrik kvarts-feltspat gneiss og pegmatitt. I tilknytning til pegmatitten er det en del uregelmessige store aggregater av sulfider i fjellveggen rett ved åpningen. Det er også opptil cm-store flak av grafitt i ytterkanten av pegmatitten. Det er svært lite mineraliserte prøver å finne på den dels overgrodde 150 kbm tipphaugen. Det som finnes består av massiv magnetkis med små mengder kobberkis. Sannsynligvis var det prøvedrift her samtidig og i tilknytning med driften på Meinkjær. |
Bibliography: |
| From NGU's Reference Archive: |
| Bugge, Arne , 1920 |
| II. Nikkelgruber i Bamble |
| ;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.87;14 pages |
| Abstract: | |
| In the present paper the author treats the geology of some deposits of nickelferous pyrrhotite in archean west of the Oslofjord in southern Norway. The deposits, which have been known for a long time, and have been subject to considerable mining operations, are situated shortly west of the fault, which separates the archean region in the west from the unmetamorphosed palaeozoic sedimentary and eruptive rocks of the "Oslo field" in the east. The archean rocks of the district have not up to the present time been adequately mapped or investigated, and the map accompanying this paper is the first result of a detailed mapping in the district. The region is considered to belong to the northern extremity of the so-called "Bamble formation", a complex of archean rocks, which has long ago been given this separate name on account of its containing unquestionable sedimentary rocks, such as quartzite, cordierite- and silimanite gneisses. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| TE0256.01 | Dump |
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| NB! All analyse values are shown at the end of the printout.: |
| The fact sheet was created on 08.05.2024 |
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