Norsk versjon
	THE INDUSTRIAL MINERAL DATABASE
	Deposit Area 1870 - 321
	(Last updated 23.apr.2024)

Importance

Public:

National Importance (reg. 05.10.2023)

Economical:

Significant , (Confirmed 05.okt.2023 by Havard Gautneb)

Products

	Element/product	Crude ore grade or quality
	REFRAC	11,3 %

Mineralization

	Era:		Period:
	Dating:		Method:
	Genesis:		Form:
	Main texture:		Min. distribution:

Main grain size:

	Strike/Dip:		Direction:
			Plunge:

Stratigraphic classification of host rock

Era:

Period:

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

Group:

Formation:

Information(s) in free text format

Free text

The Vikeid West area is almost 100 % soil covered. Graphite schist was observed in a few drainage channels in 1991 (Gautneb & Tveten 1992). However, neither the relationships to the country rocks, nor the structure and the deformation of the rock can be observed in the field. The drilling gave a complete profile through one of the graphite sections at this locality. Rønning 2019) Analysis of 12 samples from the area show an average TC content of 10.4 % and a maximum value of 16.7 %. The graphite appears as flakes with industrial interesting size. The TC content of twelve samples varies from 0.5 % to 16.7 % with an average value of 10.4 %. One drill-hole intersects graphite mineralisation for > 20 m but is directed away from the best conducting part. The TC content in the drill-core is ca. 5 % in massive parts, and ca. 1 % in disseminated parts. However, this drill-hole is located at the rim of Structure I and probably does not describe the real total carbon content in the mineralisation. The graphite appears as good flake quality with grain size from ca. 0.1 mm to several mm. The Vikeid West area (Vikeidet) is among the most interesting graphite mineralisation in Vesterålen It is the regards as the same occurences as Vedåsen

Bibliography:

From NGU's Reference Archive:

Rønning, J.S.;Gautneb, H.; Larsen, B.E.; Baranwal, V.C.; Davidsen, B.; Engvik, A.K.; Gellein, J.; Knezevic, J.; Ofstad, F.; Xiuyan Ren; Viken, G. , 2019

	Geophysical and geological investigations of graphite occurrences in Vesterålen, Northern Norway, in 2018 and 2019

;Norges geologiske undersøkelse;RAPPORT;NGU-rapport; No.2019.031;212 pages

Abstract:

Several potential graphite occurrences in Vesterålen were selected for follow-up work based on helicopter-borne geophysical data. The purpose for this is to confirm the existence of the graphite and next to briefly evaluate the quality and quantity of the graphite-bearing structures. The goal for the project, which is sponsored by Nordland county administration, is to increase the knowledge of each individual graphite occurrence. By doing so, the interest in graphite prospecting in Northern Norway may increase, effective prospecting can be implemented, and land planning can be developed with appropriate regard for areas with potential for economic graphite.

Gautneb, Håvard; Tveten, Einar , 1992

	Grafittundersøkelser og geologisk kartlegging på Langøya, Sortland kommune, Nordland.

;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.92.155;78 pages

Abstract:

Rapporten omhandler NGUs grafittundersøkelser og geologiske kartlegging som har vært utført i tilknyttning til grafittforekomstene ved Jennestad. Undersøkelsene har resultert i en betydelig utvidelse av området for potensi- elle grafittforekomster. I Jennestad - Vikeid området har det blitt utført røsking og prøvetaking av grafittskifer på ca. 20 lokaliteter. De geologiske forhold og grafittens kvalitet rapporteres. Det har blitt boret 7 hull, til- sammen ca. 250 m. Det har blitt funnet flere lokaliteter med grov flakig grafitt med gehalter opptil 40 %. Grafittskiferen er assosiert med pyroksen- gneis, amfibolitt og dolomitt. Opptreden av grafittskifer synes sterkt domi- nert av strukturgeologiske forhold.

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The fact sheet was created on 17.05.2024

Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no

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