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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 127 - 001 | |||||
| (Last updated 22.okt.2025) | |||||
Name of Deposit Area : Skår |
| (Object Id : 0127,001,00,00) |
| Location |
| County : | Østfold (01) | Municipality : | Skiptvet (0127) |
| Map 1:50000: | Sarpsborg (1913-1) | Map 1:250000: | Oslo |
| Marking point: | Longitude: | 11.1619300 | Latitude: | 59.4042010 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 622735 m. | Y-coord: | 6587054 m. |
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| Commodity |
| Main Type: | Ferroalloys (Cr,Ni,Co,V,Mo,W) | Sub Type: | Nickel | |
| Element(s): | Ni Cu |
| Production |
| Activity: | Mining | Reserves: | ||
| Prod. method: | Open pit mining | Production: | ||
| Prod. status: | Disused, closed | Volume of dump: |
| Importance |
| Public: | Little Importance (reg. 18.02.2015) |
| Economical: | Minor interest , (Confirmed 16.feb.2005 by Havard Gautneb) |
Products |
| Element/product | Crude ore grade or quality | |
| NI | 2.0 % |
Mineralization |
| Era: | Proterozoic | Period: | Mesoproterozoic | |
| Dating: | Method: | |||
| Genesis: | Orthomagmatic formation | Form: | ||
| Main texture: | Min. distribution: |
| Main grain size: | Main alteration: |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Proterozoic | Period: | Mesoproterozoic |
| Province: | East Norwegian Basement Province | |
| Geotec.unit: | Østfold Complex | |
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Formation: |
Information(s) in free text format |
| Free text |
| Forekomsten ligger rett øst for en hytte ved veien som fører ned til Skår på nordvest-siden av Glomma ovenfor. Arbeidene består av en 3-4 m bred og ca. 25 m lang dagskjæring med retning 300 grader. Veggene er opptil 6-8 m høye. Sør for dagskjæringen er det spor etter en gammel gruvevei som dels er anlagt over store, gjengrodde tipphauger. Ifølge Norges Bergverksstatstikk produserte gruva 11 t nikkelmalm i 1918, og den ble drevet tidligere av Glørud interessentskap i1876-77 (Rekstad 1921). Relativt mye masse er tatt ut. I skjæringen dominerer finkornet amfibolitt med uregelmessig disseminasjon og aggregater av magnetkis og kobberkis. Biotittførende granittisk gneis finnes i sørøstenden med foliasjon 130/20-60 grader. |
| Photo(s) from the Deposit area: |
|
Bibliography: |
| From NGU's Reference Archive: |
| Rekstad, J. , 1921 |
| Eidsberg. De geologiske forhold innen rektangelkartet Eidsbergs område |
| ;Norges geologiske undersøkelse;KARTBESKRIVELSE; BOK;NGU; No.88;76 pages |
| Abstract: | |
| The territory is situated in south-eastern Norway to the east of the Oslofjord. It is an inland district which at no place reaches the sea. Glomma is the chief river which runs through the country in a southerly direction. The rocks occurring here are gneiss, granite, gabbro and schistose amphibolite, all of them of Archean age. Gneiss occupies a large area of the region. The rock has a varied appearance. Partly it is rich in mica (mica gneiss), partly it contains hornblende (hornblende-gneiss), partly it is coarse-grained and of granitoid texture. This latter form embraces also granite which has been deformed by powerful mechanical forces. This granite is intermixed with the gneiss in such a way as to make it impossible to separate them on the map. For the most part there is no distinctive demarcation between them, but the one passes into the other. The gneiss is mostly stratified, with well defined strike and dip. The granite intermixed is younger than the gneiss, but it belongs to the oldest known granites of Scandinavia. The gneiss is for the most part of igneous origin. Gabbro and amphibolite occur as numerous lenses injected into the gneiss. Connected with the gabbro here occurs nickelferous pyrrhotite. The greatest of these occurrences is at Romsås. |
| , 1940 |
| Aktenvermerk uber Nickelerz-Vorkommen in Smålenene. |
| ;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 1585;2 pages |
| Abstract: | |
| Notatet gir opplysninger om nikkel-magnetkisforekomster i Smålenene, Spydeberg, Hobøl, Skiptvedt, Svendal, Rakkestad, Eidsberg, Trøgstad og Askim. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| Skår01 | Dump |
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| Skår02 | Dump |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 127 - 001 Skår |
Element analyses |
( *=parts pr. million, #=parts pr.billion, Negative values means below detection limit value.) |
| Sample No. | Sample Type | Cu* | Zn* | Pb* | Co* | Ni* | Ag* | Au# |
| Skår01 | Dump | 3040 | 101 | 8 | 283 | 7220 | 1.7 | 35.0 |
| Skår02 | Dump | 11950 | 140 | 7 | 156 | 3170 | 6.9 | 43.0 |
| ------------------ |
| Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sn* | Sb* | Bi* |
| Skår01 | 126.0 | 186.0 | 0 | .8 | 60 | 0.81 | 1 | 0 | 1 |
| Skår02 | 143.0 | 86.0 | 1 | 2.4 | 140 | 0.55 | 1 | 0 | 0 |
| ------------------ |
| Sample No. | Se* | Ga* | Ge* | In* | V* | Cr* | Mn* | Fe% | Th* |
| Skår01 | 12.00 | 16.45 | 0.25 | 0.13 | 143 | 415 | 939 | 12.90 | 2.38 |
| Skår02 | 9.00 | 18.80 | 0.22 | 0.11 | 157 | 459 | 848 | 10.00 | 2.08 |
| ------------------ |
| Sample No. | U* | W* | Rb* | Sr* | Y* | Zr* | Nb* | Ta* | Cs* |
| Skår01 | 0.30 | 0 | 40.4 | 212.0 | 9.5 | 16 | 2.40 | 0.16 | 3.42 |
| Skår02 | 0.30 | 0 | 118.0 | 238.0 | 12.1 | 19 | 2.80 | 0.14 | 4.92 |
| ------------------ |
| Sample No. | La* | Ce* | Li* | Be* | P* | Sc* | Te* | Hf* | Re* |
| Skår01 | 6.00 | 13.65 | 17 | 0 | 220 | 19.20 | 1.77 | 0.60 | 30 |
| Skår02 | 6.70 | 15.30 | 24 | 1 | 240 | 21.60 | 0.77 | 0.60 | 15 |
| ------------------ |
| Sample No. | Tl* | ||||||||
| Skår01 | 0 | ||||||||
| Skår02 | 1 |
| The fact sheet was created on 12.12.2025 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2025 Geological Survey of Norway |