English version
	MALMDATABASEN
	Forekomstområde 1112 - 009
	(Sist oppdatert 26.jun.2008)

Betydning

Offentlig:

Not Assessed (reg. 20.03.2017)

Economical:

Kan være viktig , (Confirmed 04.mar.2005 by Gurli Meyer)

Operations

	From - To	Activity	Comments
	1999 - 2005	Sampling	Company/Institution :Geological Survey of Norway
	2001 - 2002	Geochemistry	Company/Institution :Geological Survey of Norway

Mineralization

	Era:	Proterozoic	Period:	Neoproterozoic
	Dating:	931 (-3\+3) million year	Method:	U/Pb
	Genesis:	Ortomagmatisk	Form:	Lag
	Main texture:	Båndet	Min. distribution:	Semi-massiv

Main grain size:

Middelskornet (1-3 mm)

Main alteration:

	Strike/Dip:		Direction:
			Plunge:

Ti-deposit type(s)

	Main type:	Magmatic	Ilm/Mt-ratio:	1 - 5
	Sub type:	Mt +/- Ilm +/- Ap in mafic intrusion	%TiO(Ore):
	Titanium province:	Rogaland anorthosite province	%P2O5(Ore):
	Host rock:	Norite	%MgO(Ilm):
	Main Ti mineral:	Ilmenite	%V2O3(Mt):
			ppm U (Rutile):

Stratigraphic classification of host rock

Era:

Proterozoic

Period:

Neoproterozoic

	Province:	South Norwegian Basement Province
	Geotec.unit:
	Tectonic complex:
	Igneous complex:	Egersund Anorthosite Complex

Group:

Bjerkreim Sokndal Intrusion

Formation:

Mineralogy

	Relationship	Mineral	Amount
	Gangue mineral	Pyroxene	Major mineral (>10%)
	Gangue mineral	Plagioclase	Major mineral (>10%)
	Gangue mineral	Biotite	Accessory mineral (<1%)
	Ore mineral	Ilmenite	Major mineral (>10%)
	Ore mineral	Magnetite	Subordinate mineral (1-10%)
	Ore mineral	Apatite	Subordinate mineral (1-10%)

Lithology:

	Relationship	Rock	Origin
	Host rock	Gabbronoitt	Intrusive Original rock :Gabbro norite
			Metamorphic facies :Unmetamorphosed

Bilde(r) fra forekomstområdet:

Photo no. 1 showing Location of Vasshus" Photo no. 2 showing Ollestad and Vasshus"

Bibliography:

From NGU's Reference Archive:

Korneliussen, Are; McEnroe, Suzanne A.; Nilsson, Lars-Petter; Schiellerup, Henrik; Gautneb, Håvard; Meyer, Gurli B.; Størseth, Leif Roger , 2000

	An overview of titanium deposits in Norway

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU Bulletin; No.436;27-38 pages

Abstract:

Titanium deposits in Norway are of three major types: igneous, metasomatic and metamorphic. The igneous deposits are compared of ilmenite, magnetite and apatite in various proportions and occur in geological provinces of different ages. and some have a metamorphic overprint. The other majord Ti ore-types is the rutile-bearing eclogites in western Norway that formed during the Caledonian high-pressure metamorphism of predominantly Proterozoic basic igneous rocks. The third Ti ore-Type is the Proterozoic rutile-bearing, scapolitised and albitised rocks in the Bamble region of South Norway.

Meyer, G.B.; Schiellerup, H.; Tegner, C. , 2002

	Chemical characterisation of ilmenite, magnetite and apatite in the Bjerkreim-Sokndal Layered Intrusion, Rogaland, South Norway

;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.2002.042;25 pages

Abstract:

During 2001 cooperation was established between NGU and Norsk Hydro Agri in order to locate combined resources of apatite, ilmenite and vanadium magnetite in the Bjerkreim-Sokndal layered Intrusion in the Rogaland Anorthosite Province of aouth Norway. It had previously been recognized that a potential existed for finding coexisting apatite, low-Mg= ilmenite and vanadium-rich magnetite in the northern part (the Bjerkreim-lobe) of the layered intrusion. It had also become apparent that none of the minerals are present in amounts that can support exploitation of one mineral alone. Fieldwork was undertaken during July 2001 with the purpose of locating and constraining the most promising areas in terms of volume and grade of the three target minerals in the Bjerkreim-lobe. Three apatite-bearing and oxide-rich zones were singled out, sampled and preliminarily constrained. These zones are located with one area in mega-cyclic unit (MCU) IBe (Åsen-Bjerkreim), containing up to 41% of the three minerals, two areas in MCU IIIe (Helland and Terland respectively), with up to 34% of the three minerals, and in MCU IVe (Teksevatnet-Vasshus), with 32% ilmenite, magnetite and apatite. The fieldwork and subsequent whole-rock chemical analyses (XRF) were described and discussed by Schiellerup et al. (2001). In the apatite. and oxide-rich part of MCU IBe the MgO-content of ilmenite vary between 1.36 and 2.26% with an average of 1.8%. Stratigraphically dependant variation has not been resolved and the highest MgO contents in ilmenite tend to occur in the most mafic layers. In the two MCU III prospects at Helleland and Terland the MgO-content in ilmenite averages 2.2 and 2.5% respectively, whereas the Teksevatnet profile yield an average of 1.4% MgO in ilmenite. In the Teksevatnet profile the modal contrast between mafic and felsic layers is exceptional and the MgO-content of ilmenite is consi

Schiellerup, H.; Meyer, G.B.; Tegner, C.; Robins, B.; Korneliussen, A. , 2001

	Resources of apatite, ilmenite and magnetite in the Bjerkreim Sokndal Layered Intrusion, Rogaland, South Norway

;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.2001.092;33 pages

Abstract:

The Rogaland Anorthosite Province in southwest Norway is well known for its many ilmenite deposits, of which Tellnes is at present the only one in product- ion In addition to ilmenite, the province carries a significant potential for apatite and vanadium-rich magnetite occurring in the layered series of the Bjerkreim-Sokndal Layered Intrusion. The current study was undertaken in order to locate exploitable resources of combined apatite, ilmenite and vanadian magnetite in the Bjerkreim-lobe of the Bjerkreim-Sokndal intrusion.

Navn på sample point : NH-56

(Objekt Id : 1112,009,06,01)

---

Lokalisering

Fylke :

Rogaland (11)

Kommune :

Lund (1112)

Kart 1:50000:

Ørsdalsvatnet (1312-3)

Kart 1:250000:

Mandal

Markeringspunkt:

Lengdegrad:

6.3569860

Breddegrad:

58.5321900

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-koord:

346123 m.

Y-koord:

6490991 m.

Materialtype

	Hovedtype:	Jernmetaller (Fe, Mn, Ti)	Subtype:	Jern-titan
			Element(s):	Fe Ti P

---

Faktaarket ble generert 13.06.2026

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

Copyright © 2026 Norges geologiske undersøkelse