Norsk versjon | |||||
THE ORE DATABASE | |||||
Deposit Area 829 - 063 | |||||
(Last updated 28.mar.2020) |
Name of Deposit Area : Johnsli |
(Object Id : 0829,063,00,00) |
Location |
County : | Telemark (08) | Municipality : | Kviteseid (0829) |
Map 1:50000: | Bandak (1513-1) | Map 1:250000: | Skien |
Marking point: | Longitude: | 8.3883440 | Latitude: | 59.4119870 |
EU89-UTM Zone 32 | (Coordinates IS confirmed) |
X-coord: | 465279 m. | Y-coord: | 6586088 m. |
|
Commodity |
Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Copper | |
Element(s): | Kis Cu Pb |
Production |
Activity: | Pitting | Reserves: | ||
Prod. method: | Production: | |||
Prod. status: | Volume of dump: | 30 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 - 1880 | Pitting | ||
2006 - 2006 | Sampling | Company/Institution :NGU |
Mineralization |
Era: | Proterozoic | Period: | Mesoproterozoic | |
Dating: | Method: | |||
Genesis: | Metamorphic formation | Form: | Irregular | |
Main texture: | Fracture filling | Min. distribution: | Irregular (scattered) |
Main grain size: | Fine grained (< 1 mm) | Main alteration: | Albitisation |
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: | Formation: | Transtaulhøgdi supracrustals |
Mineralogy |
Relationship | Mineral | Amount | |
Gangue mineral | Feldspar | Major mineral (>10%) | |
Gangue mineral | Quartz | Major mineral (>10%) | |
Gangue mineral | Amphibole | Major mineral (>10%) | |
Ore mineral | Chalcopyrite | Major mineral (>10%) | |
Ore mineral | Sphalerite | Accessory mineral (<1%) | |
Ore mineral | Molybdenite | Accessory mineral (<1%) | |
Ore mineral | Galena | Accessory mineral (<1%) |
Lithology: |
Relationship | Rock | Origin | |
Host rock | Amphibolite | Extrusive Original rock :Basalt |
|
Metamorphic facies :Amphibolite |
Structures |
Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
Host rock | Foliation | Strike/Dip :297 / 62 | Syn-mineralisation ;...Effect :Modifies |
Information(s) in free text format |
Free text |
En uregelmessig utformet dagskjæring ligger ca. 100 m sørvest for Johnsli seter. Enkleste adkomst er fra en sti som går nordover fra bomveien vestover fra Tveitgrendi, nordvest for Kviteseid. Skjæringa er gjengrodd, 1-2 m dyp med utstrekning 10x8 m. Ca. 5 m lengre sør og 4 m lavere i terrenget er det et mindre påhugg. Mindre arbeider ble utført i 1870-årene (Dons 1963). Berggrunnen domineres av finkornet amfibolittisk bergart med foliasjon 292º/62º. Moderat disseminasjon av kobberkis finnes i noe omvandlet, feltspatrik amfibolitt som dels fører umineraliserte, mindre kvartsslirer/-linser. Lokalt finnes hyppig kobberkisstrenger i den lille skjæringa i sør. Mindre mengder molybdenglans, blyglans og sinkblende skal også være påvist. Forekomsten har ingen økonomisk interesse, men er med på å indikere at i området omkring Transtølhøgdi finnes det flere mineraliseringer som ikke er sene gangforekomster, men kan være syngenetiske. |
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 | ||||
TE0313.01 | Dump |
|
NB! All analyse values are shown at the end of the printout.: |
Name of Locality : Johnsli S |
(Object Id : 0829,063,01,00) |
Location |
County : | Telemark (08) | Municipality : | Kviteseid (0829) |
Map 1:50000: | Bandak (1513-1) | Map 1:250000: | Skien |
Marking point: | Longitude: | 8.3874490 | Latitude: | 59.4098820 |
EU89-UTM Zone 32 | (Coordinates IS confirmed) |
X-coord: | 465227 m. | Y-coord: | 6585854 m. |
|
Commodity |
Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Copper | |
Element(s): | Kis Cu Pb |
Production |
Activity: | Pitting | Reserves: | ||
Prod. method: | Production: | |||
Prod. status: | Volume of dump: | 2 m3 |
Mineralogy |
Relationship | Mineral | Amount | |
Gangue mineral | Quartz | Major mineral (>10%) | |
Gangue mineral | Feldspar | Major mineral (>10%) | |
Gangue mineral | Amphibole | Subordinate mineral (1-10%) | |
Ore mineral | Pyrite | Major mineral (>10%) | |
Ore mineral | Galena | Subordinate mineral (1-10%) | |
Ore mineral | Chalcopyrite | Accessory mineral (<1%) | |
Ore mineral | Arsenopyrite | Accessory mineral (<1%) |
Lithology: |
Relationship | Rock | Origin | |
Host rock | Quartz-feldspar rock | Extrusive Original rock :Rhyodacite |
|
Metamorphic facies :Amphibolite |
Information(s) in free text format |
Free text |
Et svært lite skjerp, trolig bare noen få skudd, finnes i sørskråningen av en markert rygg, ca. 250 m sør for hovedskjerpet. Vertsbergarten er her trolig felsisk metavulkanitt. Blokker med rik disseminasjon av pyritt og mindre mengder blyglans, kobberkis og arsenkis i amfibolrik bergart er prøvetatt. |
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 | ||||
TE0313.02 | Dump |
|
NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
from |
Deposit Area 829 - 063 Johnsli |
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# |
TE0313.01 | Dump | 32050 | 1400 | 200 | 30 | 140 | 68.0 | 180.0 |
TE0313.02 | Dump | 5370 | 73400 | 2800 | 50 | 80 | 33.0 | 100.0 |
------------------ |
Sample No. | As* | Cd* | Mo* | Sb* | Bi* | Cr* | Mn* | Fe% | W* |
TE0313.01 | -100 | 70.0 | 10.00 | -10 | -100 | 500 | 200 | 5.50 | -10 |
TE0313.02 | 100 | 590.0 | 20.00 | 10 | 100 | 40 | 700 | 20.80 | 110 |
------------------ |
Sample No. | Sr* | P* | Ca* | ||||||
TE0313.01 | -10.0 | 0 | 0 | ||||||
TE0313.02 | -10.0 | 0 | 0 |
The fact sheet was created on 15.05.2024 |
Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
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