English version
	INDUSTRIMINERALDATABASEN
	Forekomstområde 1868 - 303
	(Sist oppdatert 05.sep.2022)

Betydning

Offentlig:

Not Assessed (reg. 07.12.2015)

Economical:

Kan være viktig , (Confirmed 23.sep.2014 by Havard Gautneb)

Mineralization

	Era:	Proterozoic	Period:
	Dating:		Method:
	Genesis:	Sedimentær avsetning	Form:	Uregelmessig
	Main texture:	Granoblastisk	Min. distribution:	Disseminert

Main grain size:

Middelskornet (1-3 mm)

	Strike/Dip:	10 / 70	Direction:
			Plunge:

Stratigraphic classification of host rock

Era:

Proterozoic

Period:

	Province:
	Geotec.unit:
	Tectonic complex:
	Igneous complex:

Group:

Formation:

Mineralogy

	Relationship	Mineral	Amount
	Not defined	Graphite	Major mineral (>10%)

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Foliation	Strike/Dip :10 / 70	Post-mineralisation ;...Effect :Controls

Opplysning(er) i fritekstformat

Fri tekst

Forekomsten ligger på sydøst siden av Svinøy, mellom Langøya og Skogsøya. Her er det blotten et 2.5 meter tykk kompakt grafitt malm med gehalter opp til 26% grafitt. Forekomsten er sannsynligvis en forlengelse av forekomsten på Skogsøya som er noen hundre meter rett nordenfor. Denne forekomsten er sannsynligvis en av de beste for å studere grafittskifer, den interne deformasjon og grenser mot sidebergater, som finnes i Norden (Verden).

Bilde(r) fra forekomstområdet:

Photo no. 1 showing picture of graphite schist"

Bibliography:

From NGU's Reference Archive:

Gautneb, Håvard; Rønning, Jan Steinar; Engvik, Ane K.; Henderson, Iain H.C.; Larsen, Bjørn Eskil; Solberg, Janja Knezevic; Ofstad, Frode; Gellein, Jomar; Elvebakk; Harald; Davidsen, Børre , 2020

	The graphite occurrences of northern Norway, a review of geology, geophysics and resources

;ARTIKKEL;Minerals; No.7(10);24 s. pages

Abstract:

Artikkel i Minerals 2020 nr. 7 vol. 10. Abstract: There are three provinces in Northern Norway in which occurrences of graphite are abundant; the Island of Senja, the Vesterålen archipelago, and the Holandsfjorden area. From these provinces, we report graphite resources from 28 occurrences. We use a combination of airborne and ground geophysics to estimate the dimensions of the mineralized areas, and, combined with sampling and analysis of the graphite contents, this gives us inferred resources for almost all the occurrences. The average TC (total carbon) content is 11.6%, and the average size is 9.3 Mt or 0.8 Mt of contained graphite. We demonstrate that the Norwegian graphite occurrences have grades and tonnages of the same order of magnitude as reported elsewhere. The graphite-bearing rocks occur in a sequence that encompasses carbonates, meta-arenites, acid to intermediate pyroxene gneisses, and banded iron formations metamorphosed into the granulite facies. Available radiometric dating shows that the graphite-bearing rocks are predated by Archean gneisses and postdated by Proterozoic intrusions of granitic to intermediate compositions.

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	HG38-14	Bedrock	Sampler :Havard Gautneb Kommentar :Sample of graphit schist, UTMX: 498345 UTMY: 7639890 No. of registrated special analyses = 1
	HG39-14	Bedrock	Sampler :Havard Gautneb Kommentar :Sample of graphit schist, UTMX: 498345 UTMY: 7639890 No. of registrated special analyses = 1

NB! All analyse values are shown at the end of the printout.:

Navn på sample point : 140225

(Objekt Id : 1868,303,00,01)

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Lokalisering

Fylke :

Nordland (18)

Kommune :

Øksnes (1868)

Kart 1:50000:

Nykvåg (1132-1)

Kart 1:250000:

Svolvær

Markeringspunkt:

Lengdegrad:

14.9587870

Breddegrad:

68.8702040

EU89-UTM Zone 33

(Coordinates IS confirmed)

X-koord:

498342 m.

Y-koord:

7639889 m.

Materialtype

Hovedtype:

Grafitt

Subtype:

Grafitt

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Analyse Results

from

Forekomstområde 1868 - 303 Svinøya

Special analyses

Sample No.	Sample Type	What is measured	Result
HG38-14	Bedrock	Total carbon (TC)	24.9%
HG39-14	Bedrock	Total carbon (TC)	21.8%

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Faktaarket ble generert 13.06.2026

Spørsmål eller kommentarer vedrørende faktaarket kan mailes til: ressursdatabaser@ngu.no

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