Fact Sheet for <b>Occurence 0

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	THE ???? DATABASE
	Occurence 0 - 000 FEIL
	(Object Id: ) (Last updated: 01.03.2005)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Eidsvoll (1915-1)

Map 1:250000:

Hamar

Coordinate system:

UTM-Zone 33 - EUREF89/WGS84

East:

633295 m.

North:

6691380 m.

Longitude:

11.4147140

Latitude:

60.3369610

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Resource

	Resource Type:	Precious metals (Au,Ag,PGE)	Resource Subtype:	Gold
			Element(s):	Au

Importance

Raw material meaning:

Little Importance (reg. 18.02.2015)

Resources and production

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

Mineralization

Era: Proterozoic Period: Neoproterozoic

Genesis: Hydrothermal vein Form: Plate

Main texture: Fracture filling Min. distribution: Irregular (scattered)

Main grain size: Medium grained (1-3 mm) Main alteration: Sericitisation

Strike/Dip: 3 / 90 Direction:

Plunge:

Stratigraphic classification of host rock

Era: Proterozoic Period: Paleoproterozoic

Province: East Norwegian Basement Province

Geotec.unit: Romerike Complex

Tectonic complex: Mylonite zone

Igneous complex:

Group: Formation:

Structures

Location: Type: Orientation(360 gr.): Relation to min.:

Host rock Fault plane Strike/Dip :3 / 90 Syn-mineralisation ;...Effect :Controls

Information(s) in free text format

Free text

Gamle Utsjøen mine was recently rediscovered by prospector Wilhelm Tveter who detected the entrance to a mine below the present water level in a small bay on the eastern shore of Lake Utsjøen. This is possibly the site where a 1-2 m wide nearly massive vein of sulphides was reported to have been found in 1787, and which according to old analyses cited by Bradt (1790) contained 255-320 g/t Au. However, all later attempts to find this deposit which was the most gold-rich in the whole Eidsvoll district, has failed. Several explanations for this have been given as discussed by Foslie (1924). But one reason could be that mine became flooded when the Lake Utsjøen dam was built in the 19ths century in order to float timber down the small stream during spring. The registered Utsjøen mine (AK0016) to the south is worked along a quartz vein poor in sulphides. The Gamle Utsjøen mine in the extension of a N-S trending system of milky quartz veins which is exposed in the hillside between Utsjøbråten and Utsjøen, and east of the dirt road on the eastern side of the lake. However, these 1-2 m thick veins contain only minor pyrite and chalcopyrite.

Era:	Proterozoic	Period:	Neoproterozoic
Genesis:	Hydrothermal vein	Form:	Plate
Main texture:	Fracture filling	Min. distribution:	Irregular (scattered)

	Province:	East Norwegian Basement Province
	Geotec.unit:	Romerike Complex
	Tectonic complex:	Mylonite zone
	Igneous complex:

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Fault plane	Strike/Dip :3 / 90	Syn-mineralisation ;...Effect :Controls