Fact Sheet for <b>Occurence 4643 - 006 Prins Fredrik</b>

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	THE ORE DATABASE
	Occurence 4643 - 006 Prins Fredrik
	(Object Id: 4679) (Last updated: 22.03.2013)

Location

County:

Vestland

Municipality:

Årdal (4643)

Map 1:50000:

Hurrungane (1517-4)

Map 1:250000:

Årdal

Coordinate system:

EU89-UTM Zone 32

East:

435317 m.

North:

6803592 m.

Longitude:

7.7902840

Latitude:

61.3609540

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Resource

	Resource Type:	Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn)	Resource Subtype:	Copper
			Element(s):	Kis Cu

Importance

Raw material meaning:

Little Importance (reg. 18.02.2015)

Resources and production

	Activity:	Mining	Reserves:
	Operating method:	Underground mining	Historical production:

Mineralization

Genesis: Unknown Form: Plate

Main texture: Min. distribution:

Main grain size: Main alteration:

Strike/Dip: Direction:

Plunge:

Stratigraphic classification of host rock

Era: Proterozoic Period:

Province: Caledonian Basement Province

Geotec.unit: Jotun Nappe Complex

Tectonic complex:

Igneous complex:

Group: Formation:

Information(s) in free text format

Free text

The Årdal copper deposits are situated along the valley Fardalen to the north of the Øvre Årdal community. The main deposits are Guds Gave and Kongens gruver at Gruvefjellet, Prins Fredrik close to Åsete and Blåbergets gruve at Farnes, close to Øvre Årdal. The deposits were worked intermittently between 1702 to 1734. The extracted ore contained 2.5-6 % Cu, with a gold content of 10 g/t in the product from the smelter. The main copper minerals are bornite, chalcocite and chalcopyrite, which are mainly associated with amphibolitic layers and bands in mangeritic to jotunitic rocks. The mineralizations are at least partly tectonically controlled, related to brecciated rocks in fault or shear zones. One sample from Blåberget, consisting of a collection of dump rocks contained 0.85 ppm Au, 0.2 ppm Pd and > 1 % Cu. Most other samples had much lower metal contents, and it is estimated a resource of 0.5 mill t. of ore with 0.2-0.25 % Cu at Blåberget.

Bibliography:

References not to be found in NGU's Reference Archive.:

Korneliussen, A. & Stav, J. 1977: Årdalsområdets kopperforekomster, Sogn og Fjordane. NGU rapport nr. 1560/9D, 27 s. + vedlegg.

	Genesis:	Unknown	Form:	Plate
	Main texture:		Min. distribution:

	Province:	Caledonian Basement Province
	Geotec.unit:	Jotun Nappe Complex
	Tectonic complex:
	Igneous complex: