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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 833 - 064 | |||||
| (Last updated 28.mar.2020) | |||||
Name of Deposit Area : Mostøyl |
| (Object Id : 0833,064,00,00) |
| Location |
| County : | Telemark (08) | Municipality : | Tokke (0833) |
| Map 1:50000: | Bandak (1513-1) | Map 1:250000: | Skien |
| Marking point: | Longitude: | 8.3202260 | Latitude: | 59.4907220 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 461502 m. | Y-coord: | 6594893 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: | 20 m3 |
| Importance |
| Public: | Little Importance (reg. 18.02.2015) |
| Economical: | Minor interest , (Confirmed 24.nov.2006 by Jan Sverre Sandstad) |
Operations |
| From - To | Activity | Comments | |
| 1870 - 1870 | Pitting | ||
| 2006 - 2006 | Sampling | Company/Institution :NGU |
Mineralization |
| Era: | Proterozoic | Period: | Neoproterozoic | |
| Dating: | Method: | |||
| Genesis: | Hydrothermal vein | Form: | Lens | |
| Main texture: | Fracture filling | Min. distribution: | Irregular (scattered) |
| Main grain size: | Fine grained (< 1 mm) | Main alteration: |
| Strike/Dip: | 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: | Høydalsmo group | Formation: | Morgedal formation |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Carbonate | Subordinate mineral (1-10%) | |
| Ore mineral | Bornite | Major mineral (>10%) | |
| Ore mineral | Chalcocite | Subordinate mineral (1-10%) | |
| Ore mineral | Chalcopyrite | Subordinate mineral (1-10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Wall rock | Carbonaceous meta-arenitt | Sedimentary Original rock :Sandstone |
|
| Metamorphic facies :Amphibolite |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Wall rock | Foliation | Strike/Dip :26 / 54 | Pre-mineralisation ;...Effect :None |
Information(s) in free text format |
| Free text |
| Forekomsten er lett tilgjengelig øst for er stor parkeringsplass på nordsida av E134 ca. 800 m øst for Mostøyl-krysset. En liten vannfylt skråsynk ligger på vestsida av en liten kolle, rett under en høyspentmast. Sideveggen er 5x2 m lange, og synken skal være 12 m dyp. Den ble påvist ca. 1869 med forsøksdrift året etter (Dons 1963). Berggrunnen domineres av brunlig grå, karbonatførende meta-arenitt med foliasjon 26º/54º. Kvartsgangen er ikke synlig i skjerpet i dag, men på tippen finnes kobberglans+bornitt disseminasjon og strenger i karbonatførende kvarts. Forekomsten er ubetydelig. |
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. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| TE0106.01 | Dump |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 833 - 064 Mostøyl |
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# |
| TE0106.01 | Dump | 310 | -100 | -100 | 10 | 10 | 2.0 | 10.0 |
| ------------------ |
| Sample No. | As* | Cd* | Mo* | Sb* | Bi* | Cr* | Mn* | Fe% | W* |
| TE0106.01 | -100 | -10.0 | 10.00 | -10 | -100 | -10 | 3600 | 3.24 | 10 |
| ------------------ |
| Sample No. | Sr* | P* | Ca* | ||||||
| TE0106.01 | 70.0 | 0 | 3 |
| 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 |