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MALMDATABASEN
Forekomstområde 623 - 022
(Sist oppdatert 16.mar.2020)

Navn på deposit area : Skuterud Nordgruver
(Objekt Id : 0623,022,00,00)
Forekomstområdet tilhører provinsen : Modum Vest

Lokalisering
Fylke : Buskerud (06) Kommune : Modum (0623)
Kart 1:50000: Hokksund (1714-1) Kart 1:250000: Skien
Markeringspunkt: Lengdegrad: 9.8637970 Breddegrad: 59.9777870
EU89-UTM Zone 32 (Coordinates IS confirmed)
X-koord: 548211 m. Y-koord: 6649252 m.

Materialtype
Hovedtype: Jernlegeringsmetaller (Cr,Ni,Co,V,Mo,W) Subtype: Kobolt
Element(s): Co Cu As
Production
Activity: Gruvedrift Reserves:
Prod. method: Dag- og underjordsdrift Production: 140 thousand tons
Prod. status: Nedlagt Volume of dump:

Betydning
Offentlig: Not Assessed (reg. 09.02.2017)
Economical: Kan være viktig , (Confirmed 06.mai.2015 by Terje Bjerkgård)

Products
Element/product Crude ore grade or quality
CO 0.2 %

Mineralization
Era: Period:
Dating: Method:
Genesis: Form:
Main texture: Min. distribution:
Main grain size: Main alteration:
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Period:
Province:
Geotec.unit:
Tectonic complex:
Igneous complex:
Group: Formation:

Bilde(r) fra forekomstområdet:
Photo no. 1 showing Nordgruvene"
Photo no. 2 showing Erythrin"

Bibliography:
From NGU's Reference Archive:
Grorud, Hans-Fredrik , 1997
Textural and compositional characteristics of cobalt ores from the Skuterud Mines of Modum, Norway
;Norsk geologisk forening;TIDSSKRIFTARTIKKEL;Norsk geologisk tidsskrift; No.77 (1);31-38 pages
Abstract:
The metasedimentary rocks of the Modum Complex contain concordant, sulphide- rich zones, commonly referred to as 'fahlbands'. Two of these fahlbands contain cobalt minerals. Petrographic and microprobe analyses of the cobalt minerals have been performed on selected samples, to gain insight into the genesis and post-mineralization history of the cobalt minerals. It is suggested that these minerals precipitated from an oxidizing fluid, and that certain minerals in the uraninite.thorianite series precipitated simulataneously. The fahlband silicates, and later the cobalt minerals, were recrystallized during Sveco- norwegian penetrative deformation and thermal maximum (-1.2- -0.9Ga). Prolonged heating during this event eradicated any compositional zoning which may originally have been present. Neither textural nor mineral chemical analyses indicate whether the observed cobalt minerals are the result of a primary precipitation, or of remobilization.

Navn på locality : Gruve 6
(Objekt Id : 0623,022,01,00)

Lokalisering
Fylke : Buskerud (06) Kommune : Modum (0623)
Kart 1:50000: Hokksund (1714-1) Kart 1:250000: Skien
Markeringspunkt: Lengdegrad: 9.8652970 Breddegrad: 59.9796440
EU89-UTM Zone 32 (Coordinates IS confirmed)
X-koord: 548292 m. Y-koord: 6649459 m.

Materialtype
Hovedtype: Jernlegeringsmetaller (Cr,Ni,Co,V,Mo,W) Subtype: Kobolt
Element(s): Co As


Faktaarket ble generert 19.06.2026

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