(Sist oppdatert: 21.01.2010)
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| NATURSTEINSDATABASEN | |||||
| Registrering 4639 - 603 Åfetelva | |||||
| (Objekt Id: 9412) (Sist oppdatert: 21.01.2010) |
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| Lokalisering |
| Fylke: | Vestland | Kommune: | Vik (4639) |
| Kart 1:50000: | Leikanger (1317-2) | Kart 1:250000: | Årdal |
| Koordinatsystem: | EU89-UTM Zone 32 | (Koordinatene IKKE bekreftet) |
| Øst: | 377217 m. | Nord: | 6778291 m. |
| Lengdegrad: | 6.7209420 | Breddegrad: | 61.1199970 |
| Kartvisning |
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| Ressurs |
| Ressurstype: | Kleberstein og serpentinitt | Ressursundertype: | Kleberstein | |
| Murestein(Y/N): | N |
| Betydning |
| Råstoffbetydning: | Liten betydning (reg. 18.02.2015) |
Forekomstbergart |
| Litologi: | Forvitringsfarge: | |||
| Genese: | Form: | |||
| Hovedtekstur: |
| Kornstørrelse: | Hovedomvandling: |
| Strøk/Fall: | Retning: | |||
| Feltstupning: |
| Stratigrafisk klassifikasjon av vertsbergart |
| Æra: | Periode: |
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| Geotek.enhet: | ||
| Tektonisk complex: | ||
| Intrusivt komplex: |
| Gruppe: | Formasjon: |
Opplysning(er) i fritekstformat |
| Fri tekst |
| Strand (1963) investigated this deposit, which is situated around 4 km from Feios at the southern side of Sognefjord in the Leikanger municipality. The deposit was investigated for dimension stone purposes. Soapstone occurs in several exposures within phyllitic mica-schist over a distance of 250 m. The deposit is cut by faults. In all soapstone exposures, impurities of country rock that mostly consist of quartz were found. Soapstone of good quality occurs in neglible amounts. Indistrial mineral uses of the talc-rocks have not been evaluated. To achieve an overview of both quality and size, detailed mapping and drilling is necessary, according to Strand (1963). From Karlsen and Nilsson 1999. |
Litteraturfortegnelser: |
| Fra NGU's Referansearkiv.: |
| Karlsen, Tor Arne; Nilsson, Lars Petter , 2000 |
| Talc deposits in Norway |
| ;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.99.135;146 sider |
| Abstrakt: | |
| Information about talc and soapstone deposits registered in NGU's different databases and various available literature have been collected and described in the present report. Around 400 deposits/occurrences are known, but the detail of the available information varies widely. By reading old field-books as well as old manuscripts, maps, etc. dating as far back as A.D.1758, quite a lot of data has been found. The result of the work shows that most described talc in Norway is of ultramafic origin and is associated with serpentinites. The most common mineral association is talc + breunnerite. Different talc-provinces can be defined from the registered and non-registered data, the most important being Nord-Gudbrandsdalen, Altermark and Stølsheimen. While Altermark and Stølsheimen have been investgated in some detail with respect to talc as an industrial mineral, the Nord-Gudbrandsdalen talc province has been investigated both for milling talc and for soapstone use as dimension stone. Deposits that are probably extensive, but have so far not been investigated in detail, include the Lesjehorrungane deposits in the Nord-Gudbrandsdalen region and the Raudfjellet deposit in Nord-Trøndelag. The fractionated metakomatiites (pale green talc-chlorite rocks) of the southern part of the Palaeo-proterozoic Karasjok Greenstone Belt in Finnmark, Northern Norway, possibly represents, by far, the largest accumulations of talc in Norway. These rocks are recently mapped, for the first time, but other critical information is, however, very scarce. |
| Faktaarket ble generert 26.04.2024 |
| Spørsmål eller kommentarer vedrørende faktaarket kan mailes til: ressursdatabaser@ngu.no |
| Copyright © 2024 Norges geologiske undersøkelse |