Norsk versjon
THE ORE DATABASE
Occurence 4028 - 010 Sølvbergli
(Object Id: 5450)
(Last updated: 28.03.2020)

Location
County: Telemark Municipality: Kviteseid (4028)
Map 1:50000: Bandak (1513-1) Map 1:250000: Skien
Coordinate system: EU89-UTM Zone 32
East: 465659 m. North: 6586457 m.
Longitude: 8.3949620 Latitude: 59.4153320
Show on map

Resource
Resource Type: Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) Resource Subtype: Copper
Element(s): Cu Pb Ag
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: Fine grained (< 1 mm) Main alteration:
Strike/Dip: 330 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 Quartz Major mineral (>10%)
Ore mineral Chalcopyrite Major mineral (>10%)
Ore mineral Galena Subordinate mineral (1-10%)

Lithology:
Relationship Rock Origin
Wall rock Quartz-feldspar gneiss Extrusive
Original rock :Rhyolite
Metamorphic facies :Amphibolite

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Wall rock Foliation Strike/Dip :280 / 62

Information(s) in free text format
Free text
Lokalisering og navnsetting av gruver og skjerp på Transtaulhøgdi, et større fjellpart nordvest for Kviteseid på nordøstsida av Bandak, er noe sprikende. Denne forekomsten passer til Dons (1963) beskrivelse av Sølvbergli skjerp. Det var den eneste forekomsten som ble påvist i dette omådet etter omfattende leting. Den består av to små vannfylte skjerp på nordsida av en kolle. De er 1-1,5 m dype med sidevegger omkring 2x3 m. I knausen dominerer rødlig grå, granittisk leukogneiss/felsisk metavulkanitt med enkelte mafiske bånd med foliasjon 280º/62º. De små tippene domineres av middels- til grovkornet kvarts med strenger og disseminasjon av kobberkis og blyglans. Ut i fra skjerpenes orientering har kvartsgangen retning omkring 330º. Forekomsten har ubetydelig størrlese.

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
TE0063.01 Dump
Sampler: J.S. Sandstad/...Stored: L¿kken/...Size(kg): 2
Comment: Chalcopyrite+galena, veinlets/dissemination in quartz
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:


Analyse Results
from
Deposit Area 4028 - 010 Sølvbergli

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#
TE0063.01 Dump 5000 500 16900 20 10 26.0 30.0
------------------
Sample No. As* Cd* Mo* Sb* Bi* Cr* Mn* Fe% W*
TE0063.01 -100 30.0 30.00 10 -100 10 -100 1.23 -10
------------------
Sample No. Sr* P* Ca*
TE0063.01 -10.0 0 0


The fact sheet was created on 28.03.2024

Questions or comments regarding the fact sheet can be emailed to:
ressursdatabaser@ngu.no
Copyright © 2024 Geological Survey of Norway