Norsk versjon | |||||
THE ORE DATABASE | |||||
Occurence 4034 - 059 Lindtjern | |||||
(Object Id: 5467) (Last updated: 28.03.2020) |
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Location |
County: | Telemark | Municipality: | Tokke (4034) |
Map 1:50000: | Bandak (1513-1) | Map 1:250000: | Skien |
Coordinate system: | EU89-UTM Zone 32 |
East: | 461923 m. | North: | 6587062 m. |
Longitude: | 8.3290370 | Latitude: | 59.4204430 |
Show on map |
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Resource |
Resource Type: | Ferroalloys (Cr,Ni,Co,V,Mo,W) | Resource Subtype: | Molybdenium | |
Element(s): | Mo |
Importance |
Raw material meaning: | Little Importance (reg. 18.02.2015) |
Resources and production |
Activity: | Pitting | Reserves: | ||
Operating method: | Historical production: |
Operations |
From - To | Activity | Comments | |
2006 - 2006 | Sampling | Company/Institution :NGU |
Mineralization |
Era: | Proterozoic | Period: | Neoproterozoic | |
Genesis: | Hydrothermal vein | Form: | Lens | |
Main texture: | Fracture filling | Min. distribution: | Irregular (scattered) |
Main grain size: | Medium grained (1-3 mm) | Main alteration: | No country rock alteration |
Strike/Dip: | 60 | Direction: | ||
Plunge: |
Stratigraphic classification of host rock |
Era: | Proterozoic | Period: | Mesoproterozoic |
Province: | South Norwegian Basement Province | |
Geotec.unit: | Telemark Supergroup | |
Tectonic complex: | ||
Igneous complex: |
Group: | Formation: | Transtualhøgdi supracrustals |
Mineralogy |
Relationship | Mineral | Amount | |
Gangue mineral | Quartz | Major mineral (>10%) | |
Gangue mineral | Mica | Subordinate mineral (1-10%) | |
Ore mineral | Molybdenite | Major mineral (>10%) | |
Ore mineral | Chalcopyrite | Accessory mineral (<1%) |
Lithology: |
Relationship | Rock | Origin | |
Wall rock | Porphyric quartz-feldspar rock | Extrusive Original rock :Rhyodacite |
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Metamorphic facies :Amphibolite |
Information(s) in free text format |
Free text |
Skjerpet er meget lett å finne rett sør for bomveien opp fra Tveitgrendi ved sørvestenden av tjernet. En 2-3 m høy nabbe som består hovedsakelig av hvit kvarts står opp på sørsida av veien. Kvartsgangen har retning ca. 60º, og på vestsida av denne, 10-15 m fra veien er det sprengt en mindre skjæring i en lengde av ca. 5 m og høyde opptil 1,5 m. Kvartsgangen grenser i sørøst til en porfyrisk felsisk metavulkanitt som også opptrer som 0,5-1 m lange linser i kvartsen. Middels- til grovkornete flak (1-6 mm) av molybdenglans er anrika langs glimmerrike laminer og små linser av sidebergarten i kvartsen, men finnes også spredt i denne. Kvartsen er grovkornet og melkehvit. I mindre mengder finnes K-feltspat. De glimmerrike laminene er mest hyppig i de ytre deler av gangen som minst er 5-6 m bred. |
Bibliography: |
From NGU's Reference Archive: |
Dons, Johannes A. , 1963 |
De prekambriske bergarter i Telemark, I. Gruber og skjerp innen gradeteigkart E36V Kviteseid. |
;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.216;1-80 pages |
Abstract: | |
Approximately 115 mines and claims have been examined in the years 1941-1961 during regional geological mapping of the Kviteseid quadrangle. The map area covers a part of the "Thelemark-Sætersdal ore province" established by prof. J.H.L. Vogt in 1886. The oldest mine in the area, opened in the year 1524, was worked for silver bearing chalcopyrite and bornite. Other mines have been worked for gold, native copper and silver, molybdenite, galena, arsenopyrite, bismuthinite. All the mines have long since been abandoned and most of the surface workings are overgrown and difficult to find. The 15 native copper and silver deposits (which also contain vanadium minerals) form a separate group. They are all situated along the contact between a sandstone and an overlying basalt, the ore being confined to the sandstone. Most of the other deposits are of Quartz vein type. In quartzites which cover the greatest part of the map area, most of the quartz veins are barren. The great abundance of ore minerals in quartz veins in basic lavas and basic sills may be due to favourable pH conditions in these rocks. The galena deposits are found within a limited area close to a penetrating granite. The ore mineral paragenese in some of the deposits may have been formed under hypothermal to mesothermal conditions whereas other possibly originated at lower temperatures. |
Marstrander, H. |
Beskrivelse av gruber og skjerp i Kviteseid i Telemark. |
;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 2647;35 pages |
Abstract: | |
Følgende forekomster er malmgeologisk beskrevet: Finnekos, Langmyr, Bjørnbas, Johnsli, Sølvbergsli, Bjørgustøl, Åneroe, Toråsdækkan, Byggstøl, Lintjern, Raubergmutern, Myran, Skolteberg, Fløta, Dal (Lundevassdal), Haugen, Bygland, Soli, kleiv og Kroksmyr. |
Fieldsamples |
Sample No. | Sample type | Miscellanrous | ||||
TE0080.01 | Dump |
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NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
from |
Deposit Area 4034 - 059 Lindtjern |
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# |
TE0080.01 | Dump | 230 | -100 | -100 | -10 | -10 | -2.0 | 40.0 |
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Sample No. | As* | Cd* | Mo* | Sb* | Bi* | Cr* | Mn* | Fe% | W* |
TE0080.01 | -100 | -10.0 | 6610.00 | -10 | -100 | -10 | -100 | .44 | -10 |
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Sample No. | Sr* | P* | Ca* | ||||||
TE0080.01 | -10.0 | 0 | 0 |
The fact sheet was created on 29.03.2024 |
Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
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