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Occurence 0 - 000 FEIL
(Object Id: )
(Last updated: 27.02.2024)
Location
County: Municipality: Mangler ()
Map 1:50000: Odalen (2015-4) Map 1:250000: Hamar
Coordinate system: UTM-Zone 33 - EUREF89/WGS84
East: 642000 m. North: 6705340 m.
Longitude: 11.5821330 Latitude: 60.4592220
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Resource
Resource Type: Precious metals (Au,Ag,PGE) Resource Subtype: Gold
Element(s): Au Cu Mo W
Importance
Raw material meaning: Little Importance (reg. 18.02.2015)

Resources and production
Activity: Mining Reserves:
Operating method: Open pit mining Historical production:


Mineralization
Era: Proterozoic Period: Paleoproterozoic
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: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Proterozoic Period: Paleoproterozoic
Province: East Norwegian Basement Province
Geotec.unit: Solør Complex
Tectonic complex: Mylonite zone
Igneous complex:
Group: Formation:

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Shear plane Strike/Dip :212 / 85 Syn-mineralisation ;...Effect :Controls

Information(s) in free text format
Free text
Antoinette mine is situated a few hundred metres north of Storgruven mine marked on the 1:50 000 topographic map and about 100 m east of the dirt road leading to Lake Svarttjennet. It is represented by a water-filled open pit measuring 6 m x 16 m at surface and being connected with underground workings at 8 m depth and probably below water level to unknown depth. A shallow pit have also been worked on the same vein about 60 m west of the main pit. Most of the former Dagny mine is covered by the road and only two small workings are left on both sides of the road southwest of Antoinette. Both mines were worked on Cu-sulphides occurring in thin (0,01-1 m) ductile shear zones, developed in grey coarse-grained and weakly gneissic granodiorite. The granodiorite yields an U-Pb zircon age of 1734 Ma (Mansfeld 1998). The Antoinette mine was worked on a 20 m long and well mineralised segment of a ductilely deformed quartz veins trending ENE-WSW (Ihlen 1995). The steeply dipping mylonitic quartz-vein carries often associated sheared aplite dykes along their margin. The mineralisation comprises shear-plane stringers, fracture fillings and disseminated aggregates of mainly chalcopyrite, bornite, molybdenite and scheelite. Microscopic examinations also reveal the presence of electrum (~20 mm) intergrown with the Cu-sulphides. Some fine-grained molybdenite also occurs in the aplite dykes. Analyses of grab samples yield up to 2,3 g/t Au and 175 g/t Ag. The Dagny mine was worked on several ductile shear zones in the granodiorite. The epidote-, chlorite- and calcite-bearing shear zones contain disseminated chalcopyrite, bornite, magnetite and minor molybdenite.

Bibliography:
From NGU's Reference Archive:
Horneman, C. , 1917
Promemoria. Grtb. nr. 254. Gamle Kobbergruver og 25 nye Kobberanvisninger tilbudt E. K. tilsalgs ved herr Agent Sverre Dæhli, Kristiania.
;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 2215;2 pages
Abstract:
Forekomsten ligger omkring Storsjøen og i trakten mellom Storsjøen og Skarnæs jernbanestasjon. Antoinette og Storgruven har vistnok vært hovedgruvene. En analyse fra Antoinettegruven inneholder 5,16% Cu, 60g Ag pr. tonn og 1,5g Au pr. tonn. Ved de gamle gruvene skal det være lite elle intet å se i dagen og etter driftsresultatene å dømme må forekomstene være ubetydelige. Mange av de 25 nye anvisningene oppgis å se særdeles lovende ut.

Ihlen, Peter M. , 1983
Befaringer av malmforekomster i Eidsvoll og Nord-Odal kommuner 1983
;Norsk Hydro / NGU;RAPPORT;NH-arkivet; No.NH 6B;18+bilag pages
Abstract:
Rapporten beskriver de forskjellige hovedtyper av malmer og mineraliseringer i Eidsvoll og Nord-Odal kommuner som ble befart. Befarte gruver: Brustad, Sander, Guldkis, Antoinette, Storgruven, Trøft-gruven og Føskersetergruven.

Name of Locality: Dagny gruve
(Object Id: 15876 6,01,00)
Location
County: Municipality: Mangler ()
Map 1:50000: Odalen (2015-4) Map 1:250000: Hamar
Coordinate system: UTM-Zone 33 - EUREF89/WGS84
East: 642075 m. North: 6705345 m.
Longitude: 11.5834990 Latitude: 60.4592410
Show on map
Resource
Resource Type: Precious metals (Au,Ag,PGE) Resource Subtype: Gold
Element(s): Au Cu Mo
Resources and production
Activity: Mining Reserves:
Operating method: Open pit mining Historical production:


Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Shear plane Strike/Dip :77 / 90 Syn-mineralisation ;...Effect :Controls

Name of Locality: Vestlige skjerp
(Object Id: 15877 6,02,00)
Location
County: Municipality: Mangler ()
Map 1:50000: Odalen (2015-4) Map 1:250000: Hamar
Coordinate system: UTM-Zone 33 - EUREF89/WGS84
East: 641950 m. North: 6705290 m.
Longitude: 11.5811890 Latitude: 60.4587910
Show on map
Resource
Resource Type: Precious metals (Au,Ag,PGE) Resource Subtype: Gold
Element(s): Au Cu
Resources and production
Activity: Test mining Reserves:
Operating method: Open pit mining Historical production:


Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Host rock Shear plane Strike/Dip :80 / 90 Syn-mineralisation ;...Effect :Controls

The fact sheet was created on 02.05.2024
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