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	THE ???? DATABASE
	Prospect 0 - 000 FEIL
	(Object Id: ) (Last updated: 13.03.2024)

Products

	Element/product	Crude ore grade or quality	Reg. date
	P	0,79 %	13.03.2024
	Ti	2,72 %	13.03.2024
	V	0,039 %	13.03.2024

Operations

	From - To	Activity	Comments
	1999 - 2005	Geochemistry	Company/Institution :Geological Survey of Norway
			The project has partly been financed by Norwegian Hydro (now Yara).
	2000 - 2004	Detail mapping	Company/Institution :NGU/Henrik Schiellerup
			Hand specimen sampling

Mineralization

	Era:	Proterozoic	Period:	Mesoproterozoic
	Dating:	931 (-3\+3) million year	Method:	U/Pb
	Genesis:	Orthomagmatic formation	Form:	Layer
	Main texture:	Banded	Min. distribution:	Semi-massive (20-50 % ore minerals)

Main grain size:

Medium grained (1-3 mm)

Main alteration:

	Strike/Dip:	300 / 42	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):	1 - 3
	Main Ti mineral:	Ilmenite	%V2O3(Mt):	> 0.8
			ppm U (Rutile):

Stratigraphic classification of host rock

Era:

Proterozoic

Period:

Mesoproterozoic

	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	Gabbronorite	Intrusive
			Metamorphic facies :Unmetamorphosed

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Primary layering	Strike/Dip :300 / 42	Syn-mineralisation ;...Effect :Controls

Information(s) in free text format

Abstract

Oxide- and apatite-rich modally layered gabbronorite in the Bjerkreim-Sokndal Layered Intrusion in the Rogaland Anorthosite Province. The stratigraphic sequence, to wich the Hellend deposit belong, is conventionally denoted MCU3-e and may be followed along strike from Rappstad in the southern extension around the hinge of the Bjerkreim lobe to Ualand in the northeastern extension - a total distance of approximately 25 km - but is absent for about 8 km in the central part of the intrusion, due to extensive dyke emplacement (the Lomland Jotunitic Dyke). The thickness of the zone is variable, both stratigraphically and in exposure, decreasing from up to 300 m in the central most part to around 50 m on the flanks. Although the presence of a persistent melanocratic apatite- and oxide-enriched sequence has not been fully documented (partly due to lakes and sedimentary cover) in the MCU3e, melanocratic sequences are at least very frequent.

Description

For most of its lateral extent in the southern flank, MCU3e remains relatively leucocratic and without sequences with intense layering. Investigations at Svartevatnet and around Høyland (southeast of the Helleland profile) did not reveal the presence of cumulates significantly enriched in apatite and oxides. Layering is virtually absent and the gabbronoritic cumulates fairly leucocratic. Further north, though, as observed in the Helleland profile, more melanocratic sequences are developed. The lateral extent of this melanocratic sequence is uncertain, but it is likely to continue further north. However just 1500 m north of the Helleland profile, MCU3e can no longer be traced due to lack of exposure and dyke emplacement. The economic part of this melanocratic, apatite- and oxide-rich sequence at Helleland is in the order of 135m thick and consists of 3-30cm thick mafic layers alternating with more felsic layers. Mafic layers make up 40-60% of the sequence. However, the absolute contrast in mafic index between layers is rather poor and even the relatively felsic layers are moderately melanocratic. At Helleland the zone is exposed at road cuts along the main road of E39. The profile is represented by 10 samples covering a 147m interval of cumulates. The lowermost sample is taken in the MCU3d zone and has no apatite. The other 9 samples define the 135m thick zone of economic interest. Norm calculations from XRF whole rock analyses gives a total of 13.5% ilmenite, 8% magnetite and 8.5% apatite. The mineral composition of ilmenite and magnetite has been analysed by electron microprobe giving in average 2% MgO in ilmenite and 1% V2O3 in magnetite.

Free text

The deposit located at Helleland corresponds to profile 3 and location 3 in the samplelist. It is part of the same economic zone (MCU3e) as the deposits described at Terland N and Teksevatnet W in this database. At Helleland the zone is exposed at road cuts along the main road of E39. For most of its lateral extent in the southern flank, the geological unit (MCUIIIe) hosting the Zone B remains relatively leucocratic and without sequences with intense layering. Investigations at Svartevatnet and around Høyland (southeast of the Helleland profile) did not reveal the presence of cumulates significantly enriched in apatite and oxides. Layering is virtually absent and the gabbronoritic cumulates fairly leucocratic. Further north, though, as observed in the Helleland profile, more melanocratic sequences are developed. The lateral extent of this melanocratic sequence is uncertain, but it is likely to continue further north. However just 1500 m north of the Helleland profile, MCUIIIe can no longer be traced due to lack of exposure and dyke emplacement.

References

Schärer, U., E. Wilmart, et al. (1996). The short duration and anorogenic character of anorthosite magmatism: U-Pb dating of the Rogaland complex, Norway. Earth Planet. Sci. Lett. 139: 335-350. Egersund-Ogna: 929±2 Ma Helleren: 932±3 Ma Åna-Sira: 932±3 Ma Tellnes jotunite dyke: 931±5 Ma Tellnes ilmenite norite: 920±3 Ma Deformation of foliated margin in Egersund-Ogna: 915 Ma

Photo(s) from the Deposit area:

Photo no. 1 showing Location of Helleland" Photo no. 2 showing Road section, E39 Helleland"

Bibliography:

From NGU's Reference Archive:

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.

Korneliussen, A.; Furuhaug, L.; Gautneb, H.; McEnroe, S.; Nilsson, L.P.; Sørdal, T. , 2001

	Forekomster med ilmenitt, vanadiumholdig magnetitt og apatitt i norittiske bergarter i Egersundfeltet, Rogaland

;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.2001.014;29 pages

Abstract:

Ved tidligere undersøkelser er det påvist at norittiske bergarter i omrpåden Sokndal og Bjerkreim inneholder betydelige mengder av apatitt, ilmenitt og vanadiumholdig magnetitt, men at forekomstene er lavgehaltige. En rekke norittrelaterte forekomster inneholder i størrelsesorden 10% apatitt, 10% ilmenitt og 10% magnetitt. De minerallogiske kvaliteter synes å være gode. For eksempel forekommer ilmenitt med relativt lavt MgO-innhold (i størrelsesorden 1%) og magnetitt med høyt V-innhold (0.7-1.2% V2O2) sammen med C1-fattig apatitt i visse deler av området, noe som er positivt med tanke på mulighetene for framtidig gruvedrift. Samtidig er de samlede ressurser av kombinert apatitt ilmenitt og vanadiumrik magnetitt store. Og det burde være rimelig gode muligheter til å påvise nye forekomster med minst like gode kvaliteter som de som er påvist fram til nå.

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

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.

Name of Sample point: NH-78

(Object Id: 16061 59,03,01)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Egersund (1211-1)

Map 1:250000:

Mandal

County:

UTM-Zone 33 - EUREF89/WGS84

Resource

	Resource Type:	Ferrous metals(Fe, Mn, Ti)	Resource Subtype:	Iron-Titanium
			Element(s):	Fe Ti P

Information(s) in free text format

Description

MCU-3d. phimC (plagioclase-orthopyroxene-ilmenite-magnetite cumulate). Sample from below the zone of economic interest. Only weakly magnetic, homogeneous and massive norite with occasional cm-thick slightly more melanocratic layers. Sample of massive host. 0 m. Relative stratigraphic height in profile 3: 0 m

Name of Sample point: NH-79

(Object Id: 16062 59,03,02)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Egersund (1211-1)

Map 1:250000:

Mandal

County:

UTM-Zone 33 - EUREF89/WGS84

Resource

	Resource Type:	Ferrous metals(Fe, Mn, Ti)	Resource Subtype:	Iron-Titanium
			Element(s):	Fe Ti P

Information(s) in free text format

Description

MCU-3e. Layered sequence in apatite-ilmenite-magnetite bearing gabbronorite appearing rather melanocratic on average. Sample from melanocratic and very magnetic layer. Melanocratic layers generally 2-5 cm¿s thick. Relative stratigraphic height in profile 3: 31 m

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NH-79	Bedrock	Sampler: Meyer , Schiellerup, Tegner Comment: Apatite, ilmenite , magnetite ,gabbro-norite No. of registrated element analyses = 1 No. of registrated oxide analyses = 1

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

Name of Sample point: NH-80

(Object Id: 16063 59,03,03)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Egersund (1211-1)

Map 1:250000:

Mandal

County:

UTM-Zone 33 - EUREF89/WGS84

Resource

	Resource Type:	Ferrous metals(Fe, Mn, Ti)	Resource Subtype:	Iron-Titanium
			Element(s):	Fe Ti P

Information(s) in free text format

Description

MCU-3e. Layered sequence in apatite-ilmenite-magnetite bearing gabbronorite. 2-5 cm melanocratic layers in more leucocratic host rock. NH-80 sampled in relatively leucocratic average rock. Relative stratigraphic height in profile 3: 39 m

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NH-80	Bedrock	Sampler: Meyer , Schiellerup, Tegner Comment: Apatite, ilmenite , magnetite ,gabbro-norite No. of registrated element analyses = 1 No. of registrated oxide analyses = 1

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

Name of Sample point: NH-81

(Object Id: 16064 59,03,04)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Egersund (1211-1)

Map 1:250000:

Mandal

County:

UTM-Zone 33 - EUREF89/WGS84

Resource

	Resource Type:	Ferrous metals(Fe, Mn, Ti)	Resource Subtype:	Iron-Titanium
			Element(s):	Fe Ti P

Information(s) in free text format

Description

MCU-3e. Layered sequence in apatite-ilmenite-magnetite bearing gabbronorite. Sample from 10 cm thick melanocratic layer. Melanocratic layers make up c. 75%. Relative stratigraphic height in profile 3: 61 m

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NH-81	Bedrock	Sampler: Meyer , Schiellerup, Tegner Comment: Apatite, ilmenite , magnetite ,gabbro-norite No. of registrated element analyses = 1 No. of registrated oxide analyses = 1

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

Name of Sample point: NH-82

(Object Id: 16065 59,03,05)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Egersund (1211-1)

Map 1:250000:

Mandal

County:

UTM-Zone 33 - EUREF89/WGS84

Resource

	Resource Type:	Ferrous metals(Fe, Mn, Ti)	Resource Subtype:	Iron-Titanium
			Element(s):	Fe Ti P

Information(s) in free text format

Description

MCU-3e. Layered sequence in apatite-ilmenite-magnetite bearing gabbronorite. Melanocratic layers (1-6 cm thick) make up around 20%. Sample is taken in a melanocratic layer. Poor contrast between mafic and felsic layers. Relative stratigraphic height in profile 3: 76 m

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NH-82	Bedrock	Sampler: Meyer , Schiellerup, Tegner Comment: Apatite, ilmenite , magnetite ,gabbro-norite No. of registrated element analyses = 1 No. of registrated oxide analyses = 1

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

Name of Sample point: NH-83

(Object Id: 16066 59,03,06)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Egersund (1211-1)

Map 1:250000:

Mandal

County:

UTM-Zone 33 - EUREF89/WGS84

Resource

	Resource Type:	Ferrous metals(Fe, Mn, Ti)	Resource Subtype:	Iron-Titanium
			Element(s):	Fe Ti P

Information(s) in free text format

Description

MCU-3e. Melanocratic layer in phcimaC (plagioclase, orthopyroxene, clinopyroxene, ilmenite, magnetite, apaptite cumulate). Modally well layered rock, with melanocratic layers making up 40-60%. These layers are generally between 3 and 30 cm thick. The sample is taken 5 m above conspicuous change in vegetation. Relative stratigraphic height in profile 3: 91 m

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NH-83	Bedrock	Sampler: Meyer , Schiellerup, Tegner Comment: Apatite, ilmenite , magnetite ,gabbro-norite No. of registrated element analyses = 1 No. of registrated oxide analyses = 1

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

Name of Sample point: NH-84

(Object Id: 16067 59,03,07)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Egersund (1211-1)

Map 1:250000:

Mandal

County:

UTM-Zone 33 - EUREF89/WGS84

Resource

	Resource Type:	Ferrous metals(Fe, Mn, Ti)	Resource Subtype:	Iron-Titanium
			Element(s):	Fe Ti P

Information(s) in free text format

Description

MCU-3e. Same locality as NH-83. Leucocratic layer in phcimaC (plagioclase, orthopyroxene, clinopyroxene, ilmenite, magnetite, apaptite cumulate). Modally well layered rock, with melanocratic layers making up 40-60%. These layers are generally between 3 and 30 cm thick. The sample is taken 5 m above conspicuous change in vegetation. Relative stratigraphic height in profile 3: 91 m

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NH-84	Bedrock	Sampler: Meyer , Schiellerup, Tegner Comment: Apatite, ilmenite , magnetite ,gabbro-norite No. of registrated element analyses = 1 No. of registrated oxide analyses = 1

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

Name of Sample point: NH-85

(Object Id: 16068 59,03,08)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Egersund (1211-1)

Map 1:250000:

Mandal

County:

UTM-Zone 33 - EUREF89/WGS84

Resource

	Resource Type:	Ferrous metals(Fe, Mn, Ti)	Resource Subtype:	Iron-Titanium
			Element(s):	Fe Ti P

Information(s) in free text format

Description

MCU-3e. Melanocratic layer in phcimaC (plagioclase, orthopyroxene, clinopyroxene, ilmenite, magnetite, apaptite cumulate). Intense modal layering with mafic layers making up around 40%, but with poor absolute contrast in mafic index between relatively mafic and felsic layers. Most layers are 5-10 cm thick. Relative stratigraphic height in profile 3: 106 m

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NH-85	Bedrock	Sampler: Meyer , Schiellerup, Tegner Comment: Apatite, ilmenite , magnetite ,gabbro-norite No. of registrated element analyses = 1 No. of registrated oxide analyses = 1

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

Name of Sample point: NH-86

(Object Id: 16069 59,03,09)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Egersund (1211-1)

Map 1:250000:

Mandal

County:

UTM-Zone 33 - EUREF89/WGS84

Resource

	Resource Type:	Ferrous metals(Fe, Mn, Ti)	Resource Subtype:	Iron-Titanium
			Element(s):	Fe Ti P

Information(s) in free text format

Description

MCU-3e. phcimaC (plagioclase, orthopyroxene, clinopyroxene, ilmenite, magnetite, apaptite cumulate). Melanocratic layer in intensely modally layered sequence where 5-10 cm thick mafic layers make up about 50% of the rock. Again poor absolute contrast between mafic and felsic rock. Relative stratigraphic height in profile 3: 112 m

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NH-86	Bedrock	Sampler: Meyer , Schiellerup, Tegner Comment: Apatite, ilmenite , magnetite ,gabbro-norite No. of registrated element analyses = 1 No. of registrated oxide analyses = 1

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

Name of Sample point: NH-87

(Object Id: 16070 59,03,10)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Egersund (1211-1)

Map 1:250000:

Mandal

County:

UTM-Zone 33 - EUREF89/WGS84

Resource

	Resource Type:	Ferrous metals(Fe, Mn, Ti)	Resource Subtype:	Iron-Titanium
			Element(s):	Fe Ti P

Information(s) in free text format

Description

MCU-3e. phcimaC (plagioclase, orthopyroxene, clinopyroxene, ilmenite, magnetite, apaptite cumulate). Not particularly melanocratic sample from poorly layered sequence. Sample represent avrage rock. +395 m. Relative stratigraphic height in profile 3: 147 m

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NH-87	Bedrock	Sampler: Meyer , Schiellerup, Tegner Comment: Apatite, ilmenite , magnetite ,gabbro-norite No. of registrated element analyses = 1 No. of registrated oxide analyses = 1

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

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The fact sheet was created on 28.04.2024

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