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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 833 - 020 | |||||
| (Last updated 28.mar.2020) | |||||
Name of Deposit Area : Byrtevatn-II |
| (Object Id : 0833,020,00,00) |
| Location |
| County : | Telemark (08) | Municipality : | Tokke (0833) |
| Map 1:50000: | Dalen (1513-4) | Map 1:250000: | Sauda |
| Marking point: | Longitude: | 7.8485850 | Latitude: | 59.4900230 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 434793 m. | Y-coord: | 6595182 m. |
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| Commodity |
| Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Copper | |
| Element(s): | Cu |
| Production |
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: | 10 m3 |
| Importance |
| Public: | Little Importance (reg. 18.02.2015) |
| Economical: | Minor interest , (Confirmed 05.feb.2003 by Leif Furuhaug) |
Operations |
| From - To | Activity | Comments | |
| 1902 - 1902 | Pitting | Company/Institution :N.P. Søgaard | |
| 1923 - 1923 | Pitting | Company/Institution :O.O. Sønning |
Mineralization |
| Era: | Proterozoic | Period: | Neoproterozoic | |
| Dating: | Method: | |||
| Genesis: | Hydrothermal vein | Form: | Lens | |
| Main texture: | Fracture filling | Min. distribution: | Irregular (scattered) |
| Main grain size: | Very unevenly grained | Main alteration: |
| Strike/Dip: | 354 / 46 | Direction: | ||
| Plunge: |
| Ti-deposit type(s) |
| Main type: | Magmatic | Ilm/Mt-ratio: | ||
| Sub type: | Mt +/- Ilm +/- Ap in mafic intrusion | %TiO(Ore): | ||
| Titanium province: | Deposits outside the Ti - provinces | %P2O5(Ore): | ||
| Host rock: | %MgO(Ilm): | |||
| Main Ti mineral: | %V2O3(Mt): | |||
| ppm U (Rutile): |
| Stratigraphic classification of host rock |
| Era: | Proterozoic | Period: | Mesoproterozoic |
| Province: | South Norwegian Basement Province | |
| Geotec.unit: | Telemark Supergroup | |
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Bandak group | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Ore mineral | Chalcocite | Major mineral (>10%) | |
| Ore mineral | Bornite | Major mineral (>10%) | |
| Ore mineral | Chalcopyrite | Subordinate mineral (1-10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Wall rock | Mica schist | Sedimentary Original rock :Argillaceous sediment |
Information(s) in free text format |
| Free text |
| Forekomsten ligger i vestsiden av en liten ås om lag 10 m øst for traktorvei ved en myr og like før traktorveien går under en kraftlinje. Skjerpet består av en smal, ca. 5 m lang skjæring som er drevet ned langs en ca. 10 cm mektig kvartsåre. Tipphaugen har et volum på bare 10 kbm. Åren er parallell strøket i bergarten som er målt til N354Ø/46. Mineraliseringen består av uregelmessige aggregater av kobberglans og bornitt i kvartsen. Nordrum og Van der Wel (1981) har også funnet kobberkis, wittichenitt, hessitt og hematitt. Omgivende bergart er glimmerskifer. Forekomsten ble mutet av N.P. Søgaard i 1902 og O.O. Sønning i 1923. |
Bibliography: |
| From NGU's Reference Archive: |
| Nordrum, F.S.; van der Wel, D. , 1981 |
| Mineral-, stein- og ertsforekomster innen kartblad Sauda M 1:250 000. (Med fargetrykt kart.) Mineral, rock and ore deposits within the map-sheet Sauda (1:250 000). |
| ;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL; KARTBESKRIVELSE;NGU; Skrifter; No.366; 34;1-58 + ka pages |
| Abstract: | |
| The mineral, rock and ore deposits within map-sheet Sauda are described. The most important types are slate and schist, fluorite, and iron-titanium, copper and zinc deposits. Mica, feldspar, soapstone, asbestos, manganese, molybdenum and lead deposits are also present. No significant mining or quarrying activity is in progress at the present time (1978). Most of the occurrences of slate and schist are located within the lower Caledonian thrust zone. The iron-titanium deposits are of magmatic origin and related to mafic intrusives. The fluorite, copper and molybdenum deposits are associated with various stages of hydrothermal activity in Precambrian time. The Sauda zinc deposits occur in metamorphic rocks and have been affected by hydrothermal activity. The lead mineralizations are confined to regions along the eastern border of the Caledonian mountain chain. They are most likely of the same type as the lead deposits occurring along this border elsewhere in Scandinavia. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| TE0128.01 | Dump |
|
| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 833 - 020 Byrtevatn-II |
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# |
| TE0128.01 | Dump | 55140 | -100 | -100 | 10 | 10 | 30.0 | 90.0 |
| ------------------ |
| Sample No. | Pt# | Pd# | As* | Cd* | Mo* | Sb* | Bi* | Cr* | Mn* |
| TE0128.01 | 10.0 | -10.0 | -100 | -10.0 | -10.00 | -10 | -100 | 10 | 1300 |
| ------------------ |
| Sample No. | Fe% | W* | Sr* | Na* | Mg* | Al* | P* | Ca* | Hg* |
| TE0128.01 | 1.26 | 40 | 50.0 | 100 | 3400 | 4900 | 640 | 61300 | -10 |
| The fact sheet was created on 16.01.2025 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2025 Geological Survey of Norway |