Faktarka for Forekomstområde 1101

					English version
	MALMDATABASEN
	Forekomstområde 1101 - 058
	(Sist oppdatert 05.des.2025)

Navn på deposit area : Vallbakken

(Objekt Id : 1101,058,00,00)

Lokalisering

Fylke :

Rogaland (11)

Kommune :

Eigersund (1101)

Kart 1:50000:

Egersund (1211-1)

Kart 1:250000:

Mandal

Markeringspunkt:

Lengdegrad:

6.1039050

Breddegrad:

58.4276780

EU89-UTM Zone 32

(Coordinates NOT confirmed)

X-koord:

330892 m.

Y-koord:

6479968 m.

Materialtype

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

Betydning

Offentlig: Not Assessed (reg. 18.02.2015)

Economical: Ikke vurdert , (Confirmed 25.feb.2003 by Leif Furuhaug)

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: Ilm +/- Mt +/- Ap in mafic intrusion %TiO(Ore):

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

Host rock: Anorthosite %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:

Group: Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Plagioclase Major mineral (>10%)

Gangue mineral Spinel Subordinate mineral (1-10%)

Ore mineral Ilmenite Major mineral (>10%)

Ore mineral Magnetite Subordinate mineral (1-10%)

Lithology:

Relationship Rock Origin

Host rock Anortositt Intrusive
Original rock :Anorthosite

Fieldsamples

Sample No. Sample type Miscellanrous

160877 Bedrock

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

Kommentar :Massiv ilemenitt-magnetittmalm

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

160878 Bedrock

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

Kommentar :Massiv ilemenitt-magnetittmalm

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

Forekomstområde 1101 - 058 Vallbakken

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

Sample No. Sample Type Cu* Zn* Pb* Co* Ni* Ag* As*

160877 Bedrock 9 174 15 188 283 1.1 5

160878 Bedrock 30 135 17 176 305 1.1 5

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

Sample No. Cd* Ba* Mo* Sn* Ga* V* Cr* Th* U*

160877 7.4 21 1.00 3 12.90 2250 475 0.05 0.02

160878 7.6 19 1.00 4 9.60 2700 210 0.05 0.02

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

Sample No. W* Rb* Sr* Y* Zr* Nb* Ta* Cs* La*

160877 1 0.2 40.1 0.9 227 26.20 1.60 0.01 0.50

160878 1 0.2 35.4 0.7 274 26.30 1.80 0.01 0.30

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

Sample No. Ce* Pr* Nd* Sm* Eu* Gd* Tb* Dy* Ho*

160877 1.20 0.15 0.80 0.14 0.07 0.14 0.02 0.13 0.04

160878 0.70 0.10 0.60 0.10 0.07 0.13 0.02 0.12 0.03

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

Sample No. Er* Tm* Yb* Lu* Li* Sc* Hf* Tl*

160877 0.14 0.03 0.22 0.05 10 45.00 6.73 10

160878 0.13 0.02 0.15 0.04 10 40.00 7.92 10

Oxide analyses
( All values are in % )

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

160877 Bedrock 2.94 1.88 35.40 48.40 0.20 3.29 0.44

160878 Bedrock 2.88 1.84 35.40 51.90 0.19 3.00 0.42

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

Sample No. Na2O K2O P2O5 Loss Sum

160877 0.29 0.05 0.04 -3.01 90.00

160878 0.25 0.04 0.03 -2.70 93.00

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

Main type:	Magmatic	Ilm/Mt-ratio:
Sub type:	Ilm +/- Mt +/- Ap in mafic intrusion	%TiO(Ore):
Titanium province:	Rogaland anorthosite province	%P2O5(Ore):
Host rock:	Anorthosite	%MgO(Ilm):
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	Spinel	Subordinate mineral (1-10%)
Ore mineral	Ilmenite	Major mineral (>10%)
Ore mineral	Magnetite	Subordinate mineral (1-10%)

	Relationship	Rock	Origin
	Host rock	Anortositt	Intrusive Original rock :Anorthosite

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	As*
160877	Bedrock	9	174	15	188	283	1.1	5
160878	Bedrock	30	135	17	176	305	1.1	5

Sample No.	Cd*	Ba*	Mo*	Sn*	Ga*	V*	Cr*	Th*	U*
160877	7.4	21	1.00	3	12.90	2250	475	0.05	0.02
160878	7.6	19	1.00	4	9.60	2700	210	0.05	0.02

Sample No.	W*	Rb*	Sr*	Y*	Zr*	Nb*	Ta*	Cs*	La*
160877	1	0.2	40.1	0.9	227	26.20	1.60	0.01	0.50
160878	1	0.2	35.4	0.7	274	26.30	1.80	0.01	0.30

Sample No.	Ce*	Pr*	Nd*	Sm*	Eu*	Gd*	Tb*	Dy*	Ho*
160877	1.20	0.15	0.80	0.14	0.07	0.14	0.02	0.13	0.04
160878	0.70	0.10	0.60	0.10	0.07	0.13	0.02	0.12	0.03

Sample No.	Sample Type	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
160877	Bedrock	2.94	1.88	35.40	48.40	0.20	3.29	0.44
160878	Bedrock	2.88	1.84	35.40	51.90	0.19	3.00	0.42

Sample No.	Na2O	K2O	P2O5	Loss	Sum
160877	0.29	0.05	0.04	-3.01	90.00
160878	0.25	0.04	0.03	-2.70	93.00