Norsk versjon
	THE ORE DATABASE
	Deposit Area 1101 - 062
	(Last updated 26.jun.2008)

Importance

Public:

Little Importance (reg. 18.02.2015)

Economical:

Minor interest , (Confirmed 20.apr.2005 by Gurli Meyer)

Operations

	From - To	Activity	Comments
	1999 - 2005	Geochemistry	Company/Institution :NGU
			XRF and mineral chemistry
	2000 - 2004	Detail mapping	Company/Institution :NGU / Gurli B. Meyer
			Detailed mapping and hand specimen sampling.

Mineralization

	Era:	Proterozoic	Period:	Neoproterozoic
	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:	86 / 70	Direction:
			Plunge:

Ti-deposit type(s)

	Main type:	Magmatic	Ilm/Mt-ratio:	1 - 5
	Sub type:	Ilm +/- Mt +/- Ap in mafic intrusion	%TiO(Ore):
	Titanium province:	Rogaland anorthosite province	%P2O5(Ore):
	Host rock:	Norite	%MgO(Ilm):	<1
	Main Ti mineral:	Ilmenite	%V2O3(Mt):	> 0.8
			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:

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 Original rock :Gabbro norite
			931 (-3\+3) mill. years;..Method:U/Pb
			Metamorphic facies :Unmetamorphosed

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Primary layering	Strike/Dip :86 / 70	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 which the Terland N deposit belong, is conventionally denoted MCU4-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. The two uppermost zones in MCU IV (the e- and f-zones) contain apatite in addition to ilmenite and magnetite. The stratigraphic thickness of the two zones exceeds 1 km in the central part, however the economic part is restricted to the lowermost part (50-170 m) of zone e. The zone of economic interest is further restricted to the northeastern part of the Bjerkreim lobe; the area between Terland and Ualand, a total distance of ~10 km.

Description

At Terland S. the MCU4e zone has a stratigraphic thickness of more than 1000 m. A few samples from lowermost part of this zone has more than 25% normative ilmenite+magnetite+apatite, but no single sample exceeds 30 % normative values minerals. However the profile from Terland N. is included in this database to give a picture of the tri-mineral deposit in the Bjerkreim-Sokndal Intrusion. The profile at Terland S. is primarily taken along road cuts along the main road 42 (Tonstad road) close to Tuftene (Lii/ Lia). The lowermost sample from this profile is taken in the underlying MCU3d zone (no apatite). In contrast to locations at Teksevatnet and other locations further east, no zones of prominent layering has been encountered. The profile is characterized by relatively homogenous gabbronorites with modal layering on a scale from dm's to m's. A total of 5 samples represent a 50m thick sequence of minor economic interest (20-25% norm value minerals). Norm calculations from XRF whole rock analyses gives an average of 10.6 % ilmenite, 5.9 % magnetite and 7.8 % apatite. The mineral composition of ilmenite and magnetite has been analysed by electron microprobe giving in average 0.6 % MgO in ilmenite and 0.91 % V2O3 in magnetite.

Free text

The deposit located at Terland S is part of the same zone (MCU4-e) as the deposit described as Teksevatnet-Teksestemmen (also Eigersund county) and Teksevatnet-Storøya, Teksevatnet-Lauvneset, Bilstadvatnet-W, Bilstadvatnet-Storaneset, Mjåsund, Ollestad and Ualand (all located in Lund county). The degree of outcrop is poor and the area represents farmland. Enhanced sampling by saw or shallow drilling is strongly recommended to improve the sample resolution. Normative calculations from XRF whole rock analyses gives a total of 15.4% ilmenite, 9.5% magnetite and 9.3% apatite. The mineral composition of ilmenite and magnetite has been analysed by electron microprobe giving in average 2.5% MgO in ilmenite and 0.98% V2O3 in magnetite.

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 Terland S"

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.

Marker, Mogens; Schiellerup, Henrik; Meyer, Gurli; Robins, Brian; Bolle, Olivier , 2004

	Beskrivelse til geologisk kart over Rogaland Anortosittprovins, 1:75 000

;Norges geologiske undersøkelse;FAGRAPPORT;NGU-rapport; No.2004.007;23 pages

Abstract:

Det geologiske kartet er en oppdater oversikt over geologien i anortosittprovinsen i Rogaland, og kan danne grunnlag for forståelsen av de eksisterende geolgoiske ressursene og fremtidig mineralleting i provinsen. Kartet setter mineralressursene i en geologisk sammenheng og bidrar til å forstå deres opprinnelse og utbredelse. Det geologiske kartet er utarbeidet som et digitalt kart, hvilket vil lette dets anvendelse som basiskart for diverse typer nåværende og fremtidige undersøkelser i anortosittprovinsen av både økonomisk og vitenskapelig karakter. Rogaland anortosittprovinsen er ca. 930 millioner år gammel og omfatter flere anortositt-massiver, den lagdelte Bjerkreim-Sokndal Intrusjonen og sene norittiske og jotunittiske til charnokittiske intrusjoner. Det eldste massivet er Egersund-Ogna Anortositten i vest, som err skilt fra den folieret Håland Annortositten med en sone av sterkt foliert båndet gneis. Den yngre, udeformerte Helleren Anortositten i den sentrale del av provinsen intruderer og skjærer både Egersund-Ogna og Håland Anortosittene. Helleren Anortositteni den sentrale del av provinsen intruderer og skjærer både Egersund-Ogna og Håland Anortosittene. helleren Anortositten er en vestlig fortsettelse av Åna-Sira Anortositten. De er bare øverst adskilt av et trau (lobe) av den yngre lagdelte Bjerkreim-Sokndal Intrusjonen. Denne ligger i en uregelmessig traustruktur over både anortositt-massivene og gneisene i den nordøstlige del av provinsen. Over Bjerkreim-Sokndal Intrusjone opptrer mangeritt og kvarts-mangeritt, som strekker seg sørøstover i den såkalte Apofyse-intrusjonen. Provinsen gjennomsettes av en rekke sene jotunittiske og mangerittiske bergarter i form av ganger og små kropper. De største er Eia-Rekefjord Intrusjonen i trauet mellom Helleren og Åna-Sira Anortosittene og Hadland Intrusjonen lengst i vest, som begge består av jotunittiske bergarter. En

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.

Name of Sample point : GBM.Bj.0022

(Object Id : 1101,062,07,01)

---

Location

County :

Rogaland (11)

Municipality :

Eigersund (1101)

Map 1:50000:

Bjerkreim (1212-2)

Map 1:250000:

Mandal

Marking point:

Longitude:

6.2055370

Latitude:

58.5616020

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-coord:

337444 m.

Y-coord:

6494621 m.

Commodity

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

Information(s) in free text format

Description

MCU-4e. Layered sequence in apatite-ilmenite-magnetite bearing gabbronorite. Leuconorite host, massive. Ca. 30 m north of main road to Tonstad. Altered outcrop. 2-5 cm thick melanocratic layers alternating with 20-100 cm thick leucocratic layers. Modal layering: 105/ 90. Relative stratigraphic height in profile 7: 0 m

Name of Sample point : NH-153

(Object Id : 1101,062,07,03)

---

Location

County :

Rogaland (11)

Municipality :

Eigersund (1101)

Map 1:50000:

Bjerkreim (1212-2)

Map 1:250000:

Mandal

Marking point:

Longitude:

6.2033080

Latitude:

58.5602060

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-coord:

337308 m.

Y-coord:

6494471 m.

Commodity

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

Information(s) in free text format

Description

MCU-4e. Layered sequence in apatite-ilmenite-magnetite bearing leucogabbronorite. Alightly altered road cut along main road to Tonstad close to Tuftene (Lii/ Lia). Relative stratigraphic height in profile 7: 245 m

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NH-153	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-33

(Object Id : 1101,062,07,04)

---

Location

County :

Rogaland (11)

Municipality :

Eigersund (1101)

Map 1:50000:

Bjerkreim (1212-2)

Map 1:250000:

Mandal

Marking point:

Longitude:

6.2022150

Latitude:

58.5599130

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-coord:

337243 m.

Y-coord:

6494441 m.

Commodity

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

Information(s) in free text format

Description

MCU-4e. Layered (dm-m scale) sequence in apatite-ilmenite-magnetite bearing leocoocratic gabbronorite. Sample from 1m thick leococratic layer (just below sample NH-32 taken in the overlying melanocratic layer.) Road cut along main road to Tonstad close to Tuftene (Lii/ Lia). Modal layering: 100/64 S. Relative stratigraphic height in profile 7: 280 m

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NH-32	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-32

(Object Id : 1101,062,07,05)

---

Location

County :

Rogaland (11)

Municipality :

Eigersund (1101)

Map 1:50000:

Bjerkreim (1212-2)

Map 1:250000:

Mandal

Marking point:

Longitude:

6.2022080

Latitude:

58.5599140

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-coord:

337243 m.

Y-coord:

6494441 m.

Commodity

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

Information(s) in free text format

Description

MCU-4e. Layered (dm-m scale) sequence in apatite-ilmenite-magnetite bearing leocoocratic gabbronorite. Sample from 20 cm thick melanocratic layer (just above sample NH-33 taken in the underlying leucocratic layer.) Road cut along main road to Tonstad close to Tuftene (Lii/ Lia). Modal layering: 100/64 S. Relative stratigraphic height in profile 7: 280 m

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NH-33	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-152

(Object Id : 1101,062,07,06)

---

Location

County :

Rogaland (11)

Municipality :

Eigersund (1101)

Map 1:50000:

Bjerkreim (1212-2)

Map 1:250000:

Mandal

Marking point:

Longitude:

6.2014810

Latitude:

58.5596550

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-coord:

337200 m.

Y-coord:

6494414 m.

Commodity

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

Information(s) in free text format

Description

MCU-4e. Layered (dm-m scale) sequence in apatite-ilmenite-magnetite bearing gabbronorite. Sample of 'average gabbronorite. Road cut along main road to Tonstad 40 m east of 19 km sign. Modal layering: 86/70 S Relative stratigraphic height in profile 7: 315 m

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NH-152	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-151

(Object Id : 1101,062,07,07)

---

Location

County :

Rogaland (11)

Municipality :

Eigersund (1101)

Map 1:50000:

Bjerkreim (1212-2)

Map 1:250000:

Mandal

Marking point:

Longitude:

6.2012270

Latitude:

58.5595670

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-coord:

337184 m.

Y-coord:

6494405 m.

Commodity

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

Information(s) in free text format

Description

MCU-4e. Layered (dm-m scale) sequence in apatite-ilmenite-magnetite bearing gabbronorite. Sample of 'average' gabbronorite. Road cut along main road to Tonstad 20 m east of 19 km sign. Relative stratigraphic height in profile 7: 327 m

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NH-151	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-150

(Object Id : 1101,062,07,08)

---

Location

County :

Rogaland (11)

Municipality :

Eigersund (1101)

Map 1:50000:

Bjerkreim (1212-2)

Map 1:250000:

Mandal

Marking point:

Longitude:

6.2009550

Latitude:

58.5595610

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-coord:

337169 m.

Y-coord:

6494405 m.

Commodity

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

Information(s) in free text format

Description

MCU-4e. Layered (dm-m scale) sequence in apatite-ilmenite-magnetite bearing gabbronorite. Sample of melanocratic gabbronorite. Road cut along main road to Tonstad 20 m west of 19 km sign. Relative stratigraphic height in profile 7: 330 m

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	NH-150	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.:

---

Analyse Results

from

Deposit Area 1101 - 062 Terland S

Element analyses

( *=parts pr. million, #=parts pr.billion, Negative values means below detection limit value.)

Sample No.	Sample Type	Fe%	P*	Ti*
NH-150	Bedrock	######	78601	90943
NH-151	Bedrock	######	57977	73756
NH-152	Bedrock	######	66456	90777
NH-153	Bedrock	######	52477	69250
NH-32	Bedrock	######	81580	######
NH-33	Bedrock	######	75622	89108

Oxide analyses

( All values are in % )

Sample No.	Sample Type	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
NH-150	Bedrock	40.61	11.76	5.45	17.27	0.14	7.21	10.65
NH-151	Bedrock	43.67	13.62	4.42	14.35	0.12	6.35	9.65
NH-152	Bedrock	41.17	13.31	5.44	16.57	0.12	6.20	10.06
NH-153	Bedrock	45.78	16.96	4.15	12.82	0.09	4.27	10.02
NH-32	Bedrock	38.94	9.26	6.11	21.21	0.17	9.78	9.34
NH-33	Bedrock	41.23	12.36	5.34	17.84	0.14	7.80	9.85

------------------

Sample No.	Na2O	K2O	P2O5	Sum
NH-150	2.55	0.36	3.43	99.00
NH-151	2.96	0.44	2.53	98.00
NH-152	3.06	0.43	2.90	99.00
NH-153	3.85	0.54	2.29	101.00
NH-32	1.77	0.29	3.56	100.00
NH-33	2.40	0.39	3.30	101.00

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The fact sheet was created on 06.05.2024

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

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