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THE ???? DATABASE
Occurence 0 - 000 FEIL
(Object Id: )
(Last updated: 13.02.2024)

Location
County: Municipality: Mangler ()
Map 1:50000: Gran (1815-1) Map 1:250000: Hamar
Coordinate system: UTM-Zone 33 - EUREF89/WGS84
East: 591900 m. North: 6681750 m.
Longitude: 10.6607270 Latitude: 60.2606220
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Resource
Resource Type: Ferrous metals(Fe, Mn, Ti) Resource Subtype: Iron
Element(s): Fe
Importance
Raw material meaning: Not Assessed (reg. 18.02.2015)
Historical: Yes , (Confirmed 24.aug.2021 by Jan Sverre Sandstad)

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


Operations
From - To Activity Comments
1539 - 1799 Regular production Company/Institution :Hakadal Verk
Driften skal ha pågått i alle fall fram til 1799, og det er også sannsynlig med perioder uten drift.

Mineralization
Era: Paleozoic Period: Permian
Genesis: Skarn formation Form: Lens
Main texture: Structureless Min. distribution: Massive (>50 % ore minerals)
Main grain size: Fine grained (< 1 mm) Main alteration: Skarn formation
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Paleozoic Period: Ordovician
Province: Oslo Region
Geotec.unit: Akershus Graben
Tectonic complex:
Igneous complex: Nordmarka-Hurdal Batholith
Group: Formation:

Mineralogy
Relationship Mineral Amount
Gangue mineral Pyroxene Major mineral (>10%)
Ore mineral Magnetite Major mineral (>10%)

Lithology:
Relationship Rock Origin
Host rock Pyroxene skarn Sedimentary
Original rock :Limestone
Metamorphic facies :Contact
Wall rock Limestone Sedimentary
Original rock :Limestone

Information(s) in free text format
Historic
Jern ble utvunnet fra Hadelandsgruben 1536-1559, som nå ligger innenfor Østhagan landskapsvernområde.

Bibliography:
From NGU's Reference Archive:
Olerud, S.; Owen, A.W. , 1987
Gran. Berggrunnskart; Gran; 18151; 1:50 000; sort/hvitt;
;Norges geologiske undersøkelse;KART

Fieldsamples
Sample No. Sample type Miscellanrous
JS-OS2124 Dump
Sampler: Sandstad/Mansur/...Stored: Løkken/...Size(kg): 2
Comment: Massive/semi-massive magnetite in skarn
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:


The fact sheet was created on 02.05.2024

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