Faktarka for Forekomstområde 1111

					English version
	MALMDATABASEN
	Forekomstområde 1111 - 006
	(Sist oppdatert 05.des.2025)

Navn på deposit area : Blåfjell

(Objekt Id : 1111,006,00,00)

Lokalisering

Fylke :

Rogaland (11)

Kommune :

Sokndal (1111)

Kart 1:50000:

Sokndal (1311-4)

Kart 1:250000:

Mandal

Markeringspunkt:

Lengdegrad:

6.3847990

Breddegrad:

58.3580660

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-koord:

346987 m.

Y-koord:

6471549 m.

Materialtype

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

Production

Activity:	Gruvedrift	Reserves:
Prod. method:	Dagbrudd	Production:	90 thousand tons
Prod. status:	Nedlagt	Volume of dump:

Betydning

Offentlig: Little Importance (reg. 18.05.2015)

Economical: Lite viktig , (Confirmed 18.mai.2015 by Henrik Schiellerup)

Historical: Yes , (Confirmed 18.mai.2015 by Henrik Schiellerup)

Mineralization

Era: Proterozoic Period: Neoproterozoic

Dating: Method:

Genesis: Ortomagmatisk Form:

Main texture: Min. distribution:

Main grain size: Main alteration:

Strike/Dip: Direction:

Plunge:

Ti-deposit type(s)

Main type: Magmatic Ilm/Mt-ratio:

Sub type: Ilmenite in anorthosite %TiO(Ore): > 12

Titanium province: Rogaland anorthosite province %P2O5(Ore): <1

Host rock: Anorthosite %MgO(Ilm): > 3

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:

Group: Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Plagioclase Major mineral (>10%)

Gangue mineral Pyroxene Major mineral (>10%)

Gangue mineral Phlogopite Subordinate mineral (1-10%)

Gangue mineral Zircon Accessory mineral (<1%)

Gangue mineral Quartz Accessory mineral (<1%)

Gangue mineral Spinel Accessory mineral (<1%)

Ore mineral Ilmenite Major mineral (>10%)

Ore mineral Magnetite Subordinate mineral (1-10%)

Lithology:

Relationship Rock Origin

Host rock Noritt Intrusive
Original rock :Norite

Wall rock Anortositt Intrusive
Original rock :Anorthosite

Bibliography:

From NGU's Reference Archive:

Bugge, Carl , 1916

Sogndal grube. Geologisk kart over Frøytlev og Blåfjell 1:1 000

;Norges geologiske undersøkelse;KART;Bergarkivet; No.K 1283

Bugge, Carl , 1916

Sogndal grube. Geologisk profil av Blåfjell 1:1 000

;Norges geologiske undersøkelse;KART;Bergarkivet; No.K 1282

Bugge, Carl , 1916

Sogndal grube. Plankart over Blåfjellet gruve 1:1 000

;Norges geologiske undersøkelse;KART;Bergarkivet; No.K 1285

Sokndal gruve. Gruvekart. Profilskisser av Frøytlev og Blåfjell 1:2 000

;Norges geologiske undersøkelse;KART;Bergarkivet; No.K 2425

Fieldsamples

Sample No. Sample type Miscellanrous

160805 Bedrock

Sampler :Mansur/Orvik/Coint/Schiellerup/...Stored :Løkken/...Size(kg) :,25

Kommentar :Massiv ilmenittmalm

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

160806 Bedrock

Sampler :Mansur/Orvik/Coint/Schiellerup/...Stored :Løkken/...Size(kg) :,25

Kommentar :Disseminert ilmenitt med magnetitt

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

160807 Bedrock

Sampler :Mansur/Orvik/Coint/Schiellerup/...Stored :Løkken/...Size(kg) :,25

Kommentar :Massiv ilmenittmalm i pegmatittisk noritt

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

165908 Bedrock

Sampler :Eduardo Mansur/...Stored :Løkken/...Size(kg) :,25

Kommentar :Grovkornet ilmenitt-leukonoritt

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

165909 Bedrock

Sampler :Eduardo Mansur/...Stored :Løkken/...Size(kg) :,25

Kommentar :Grovkornet ilmenitt-noritt med biotitt

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

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

Navn på locality : Blåfjelldal

(Objekt Id : 1111,006,01,00)

Lokalisering

Fylke : Rogaland (11) Kommune : Sokndal (1111)

Kart 1:50000: Sokndal (1311-4) Kart 1:250000: Mandal

Markeringspunkt: Lengdegrad: 6.3859640 Breddegrad: 58.3567450

EU89-UTM Zone 32 (Coordinates NOT confirmed)

X-koord: 347049 m. Y-koord: 6471399 m.

Materialtype

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

Element(s): Fe Ti

Navn på locality : Ligruve

(Objekt Id : 1111,006,02,00)

Lokalisering

Fylke : Rogaland (11) Kommune : Sokndal (1111)

Kart 1:50000: Sokndal (1311-4) Kart 1:250000: Mandal

Markeringspunkt: Lengdegrad: 6.3841910 Breddegrad: 58.3576080

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-koord: 346950 m. Y-koord: 6471500 m.

Materialtype

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

Element(s): Fe Ti

Navn på locality : Nye Rasetgruve

(Objekt Id : 1111,006,03,00)

Lokalisering

Fylke : Rogaland (11) Kommune : Sokndal (1111)

Kart 1:50000: Sokndal (1311-4) Kart 1:250000: Mandal

Markeringspunkt: Lengdegrad: 6.3824170 Breddegrad: 58.3584700

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-koord: 346849 m. Y-koord: 6471599 m.

Materialtype

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

Element(s): Fe Ti

Navn på locality : Overgruve

(Objekt Id : 1111,006,04,00)

Lokalisering

Fylke : Rogaland (11) Kommune : Sokndal (1111)

Kart 1:50000: Sokndal (1311-4) Kart 1:250000: Mandal

Markeringspunkt: Lengdegrad: 6.3851310 Breddegrad: 58.3564590

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-koord: 347000 m. Y-koord: 6471370 m.

Materialtype

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

Element(s): Fe Ti

Navn på locality : Platformgruve

(Objekt Id : 1111,006,05,00)

Lokalisering

Fylke : Rogaland (11) Kommune : Sokndal (1111)

Kart 1:50000: Sokndal (1311-4) Kart 1:250000: Mandal

Markeringspunkt: Lengdegrad: 6.3832380 Breddegrad: 58.3589360

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-koord: 346900 m. Y-koord: 6471649 m.

Materialtype

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

Element(s): Fe Ti

Navn på locality : Raset gruve

(Objekt Id : 1111,006,06,00)

Lokalisering

Fylke : Rogaland (11) Kommune : Sokndal (1111)

Kart 1:50000: Sokndal (1311-4) Kart 1:250000: Mandal

Markeringspunkt: Lengdegrad: 6.3824840 Breddegrad: 58.3575730

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-koord: 346850 m. Y-koord: 6471500 m.

Materialtype

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

Element(s): Fe Ti

Navn på locality : Toppgruve

(Objekt Id : 1111,006,07,00)

Lokalisering

Fylke : Rogaland (11) Kommune : Sokndal (1111)

Kart 1:50000: Sokndal (1311-4) Kart 1:250000: Mandal

Markeringspunkt: Lengdegrad: 6.3832380 Breddegrad: 58.3589360

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-koord: 346900 m. Y-koord: 6471649 m.

Materialtype

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

Element(s): Fe Ti

Navn på locality : Undergruve

(Objekt Id : 1111,006,08,00)

Lokalisering

Fylke : Rogaland (11) Kommune : Sokndal (1111)

Kart 1:50000: Sokndal (1311-4) Kart 1:250000: Mandal

Markeringspunkt: Lengdegrad: 6.3832380 Breddegrad: 58.3589360

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-koord: 346900 m. Y-koord: 6471649 m.

Materialtype

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

Element(s): Fe Ti

Analyse Results

from

Forekomstområde 1111 - 006 Blåfjell

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

Sample No. Sample Type Cu* Zn* Pb* Co* Ni* Ba* Sn*

160805 Bedrock 20 158 1 184 495 28 2

160806 Bedrock 20 54 3 51 136 200 1

160807 Bedrock 20 184 1 166 423 6 2

165908 Bedrock 28 55 3 64 186 185 1

165909 Bedrock 39 66 1 72 258 156 1

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

Sample No. Ga* V* Cr* Th* U* W* Rb* Sr* Y*

160805 13.40 1585 1755 0.06 0.09 1 0.5 97.3 1.1

160806 20.80 485 503 0.12 0.05 1 2.6 717.0 1.4

160807 13.00 1615 1950 0.05 0.02 1 0.3 4.4 0.9

165908 18.80 531 456 0.14 0.15 1 2.3 613.0 2.4

165909 18.20 667 864 0.08 0.12 1 1.8 554.0 1.4

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

Sample No. Zr* Nb* Ta* Cs* La* Ce* Pr* Nd* Sm*

160805 152 24.80 1.60 0.01 0.50 1.60 0.20 1.30 0.15

160806 67 10.40 0.50 0.03 3.00 5.40 0.77 3.40 0.58

160807 174 24.30 1.50 0.01 0.20 0.80 0.08 0.40 0.09

165908 103 11.40 0.40 0.05 2.90 5.60 0.71 2.80 0.60

165909 112 13.50 0.90 0.03 2.00 3.60 0.40 1.70 0.46

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

Sample No. Eu* Gd* Tb* Dy* Ho* Er* Tm* Yb* Lu*

160805 0.15 0.15 0.05 0.26 0.01 0.11 0.02 0.21 0.03

160806 0.76 0.31 0.07 0.34 0.04 0.13 0.02 0.25 0.02

160807 0.02 0.16 0.02 0.11 0.04 0.07 0.02 0.26 0.06

165908 0.67 0.37 0.11 0.39 0.06 0.26 0.05 0.28 0.05

165909 0.61 0.29 0.05 0.35 0.01 0.22 0.03 0.19 0.04

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

Sample No. Sc* Hf*

160805 52.70 4.66

160806 16.40 1.92

160807 54.00 5.82

165908 20.60 2.64

165909 22.10 3.21

Oxide analyses
( All values are in % )

Sample No. Sample Type SiO2 Al2O3 TiO2 Fe2O3 MnO MgO CaO

160805 Bedrock 5.99 3.35 32.20 43.00 0.20 4.76 1.06

160806 Bedrock 41.30 20.80 11.40 14.10 0.07 1.40 7.14

160807 Bedrock 0.44 0.93 35.30 46.90 0.24 4.74 0.06

165908 Bedrock 39.40 18.25 12.85 16.95 0.10 3.74 6.30

165909 Bedrock 35.40 16.65 16.00 19.95 0.10 3.43 5.80

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

Sample No. Na2O K2O P2O5 Loss Sum

160805 0.52 0.05 0.02 -2.73 88.00

160806 4.00 0.55 0.04 0.01 101.00

160807 0.03 0.01 0.01 -3.24 85.00

165908 3.48 0.49 0.04 -0.18 101.00

165909 3.10 0.41 0.02 -0.04 101.00

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

Main type:	Magmatic	Ilm/Mt-ratio:
Sub type:	Ilmenite in anorthosite	%TiO(Ore):	> 12
Titanium province:	Rogaland anorthosite province	%P2O5(Ore):	<1
Host rock:	Anorthosite	%MgO(Ilm):	> 3
Main Ti mineral:	Ilmenite	%V2O3(Mt):
		ppm U (Rutile):

	Province:	South Norwegian Basement Province
	Geotec.unit:
	Tectonic complex:
	Igneous complex:

Relationship	Mineral	Amount
Gangue mineral	Plagioclase	Major mineral (>10%)
Gangue mineral	Pyroxene	Major mineral (>10%)
Gangue mineral	Phlogopite	Subordinate mineral (1-10%)
Gangue mineral	Zircon	Accessory mineral (<1%)
Gangue mineral	Quartz	Accessory mineral (<1%)
Gangue mineral	Spinel	Accessory mineral (<1%)
Ore mineral	Ilmenite	Major mineral (>10%)
Ore mineral	Magnetite	Subordinate mineral (1-10%)

Relationship	Rock	Origin
Host rock	Noritt	Intrusive Original rock :Norite
Wall rock	Anortositt	Intrusive Original rock :Anorthosite

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ba*	Sn*
160805	Bedrock	20	158	1	184	495	28	2
160806	Bedrock	20	54	3	51	136	200	1
160807	Bedrock	20	184	1	166	423	6	2
165908	Bedrock	28	55	3	64	186	185	1
165909	Bedrock	39	66	1	72	258	156	1

Sample No.	Ga*	V*	Cr*	Th*	U*	W*	Rb*	Sr*	Y*
160805	13.40	1585	1755	0.06	0.09	1	0.5	97.3	1.1
160806	20.80	485	503	0.12	0.05	1	2.6	717.0	1.4
160807	13.00	1615	1950	0.05	0.02	1	0.3	4.4	0.9
165908	18.80	531	456	0.14	0.15	1	2.3	613.0	2.4
165909	18.20	667	864	0.08	0.12	1	1.8	554.0	1.4

Sample No.	Zr*	Nb*	Ta*	Cs*	La*	Ce*	Pr*	Nd*	Sm*
160805	152	24.80	1.60	0.01	0.50	1.60	0.20	1.30	0.15
160806	67	10.40	0.50	0.03	3.00	5.40	0.77	3.40	0.58
160807	174	24.30	1.50	0.01	0.20	0.80	0.08	0.40	0.09
165908	103	11.40	0.40	0.05	2.90	5.60	0.71	2.80	0.60
165909	112	13.50	0.90	0.03	2.00	3.60	0.40	1.70	0.46

Sample No.	Sc*	Hf*
160805	52.70	4.66
160806	16.40	1.92
160807	54.00	5.82
165908	20.60	2.64
165909	22.10	3.21

Sample No.	Sample Type	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
160805	Bedrock	5.99	3.35	32.20	43.00	0.20	4.76	1.06
160806	Bedrock	41.30	20.80	11.40	14.10	0.07	1.40	7.14
160807	Bedrock	0.44	0.93	35.30	46.90	0.24	4.74	0.06
165908	Bedrock	39.40	18.25	12.85	16.95	0.10	3.74	6.30
165909	Bedrock	35.40	16.65	16.00	19.95	0.10	3.43	5.80

Sample No.	Na2O	K2O	P2O5	Loss	Sum
160805	0.52	0.05	0.02	-2.73	88.00
160806	4.00	0.55	0.04	0.01	101.00
160807	0.03	0.01	0.01	-3.24	85.00
165908	3.48	0.49	0.04	-0.18	101.00
165909	3.10	0.41	0.02	-0.04	101.00