Faktarka for Forekomstområde 1111

					English version
	MALMDATABASEN
	Forekomstområde 1111 - 036
	(Sist oppdatert 05.des.2025)

Navn på deposit area : Store Ålgård

(Objekt Id : 1111,036,00,00)

Lokalisering

Fylke :

Rogaland (11)

Kommune :

Sokndal (1111)

Kart 1:50000:

Sokndal (1311-4)

Kart 1:250000:

Mandal

Markeringspunkt:

Lengdegrad:

6.3465100

Breddegrad:

58.3946800

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-koord:

344908 m.

Y-koord:

6475711 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 Pyroxene Major mineral (>10%)

Gangue mineral Spinel Subordinate mineral (1-10%)

Gangue mineral Zircon Accessory mineral (<1%)

Ore mineral Ilmenite Major mineral (>10%)

Lithology:

Relationship Rock Origin

Host rock ilmenittrik noritt Intrusive
Original rock :Norite

Wall rock anortositt Intrusive
Original rock :Anorthosite

Opplysning(er) i fritekstformat

Referanser

Duchesne, J. C. (1999). Fe-Ti deposits in Rogaland anorthosites (South Norway): geochemical characteristics and problems of interpretation. Mineralium Deposita, 34(2), 182-198. Schiellerup, H., Korneliussen, A., Heldal, T., Marker, M., Bjerkgård, T., & Nilsson, L. P. (2003). Mineral resources in the Rogaland Anorthosite Province, South Norway: origins, history and recent developments. Ilmenite deposits and their geological environment. Norw Geol Surv Spec Publ, 9, 116-134. Duchesne, J. C. (2001). The Rogaland intrusive massifs: an excursion guide.

Fieldsamples

Sample No. Sample type Miscellanrous

160801 Bedrock

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

Kommentar :Grovkornet ilmenittrik noritt.

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 1111 - 036 Store Ålgård

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*

160801 Bedrock 45 151 5 129 314 1.9 5

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

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

160801 1.1 85 1.00 1 15.20 1230 1345 0.10 0.15

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

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

160801 1 1.2 259.0 3.9 203 21.30 1.20 0.03 2.20

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

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

160801 3.80 0.52 2.20 0.64 0.36 0.61 0.10 0.65 0.19

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

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

160801 0.58 0.10 0.78 0.14 10 38.00 5.35 10

Oxide analyses
( All values are in % )

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

160801 Bedrock 15.45 7.86 27.90 37.70 0.19 2.72 2.66

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

Sample No. Na2O K2O P2O5 Loss Sum

160801 1.46 0.19 0.03 -2.08 94.00

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	Pyroxene	Major mineral (>10%)
Gangue mineral	Spinel	Subordinate mineral (1-10%)
Gangue mineral	Zircon	Accessory mineral (<1%)
Ore mineral	Ilmenite	Major mineral (>10%)

Relationship	Rock	Origin
Host rock	ilmenittrik noritt	Intrusive Original rock :Norite
Wall rock	anortositt	Intrusive Original rock :Anorthosite

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	As*
160801	Bedrock	45	151	5	129	314	1.9	5

Sample No.	Cd*	Ba*	Mo*	Sn*	Ga*	V*	Cr*	Th*	U*
160801	1.1	85	1.00	1	15.20	1230	1345	0.10	0.15

Sample No.	W*	Rb*	Sr*	Y*	Zr*	Nb*	Ta*	Cs*	La*
160801	1	1.2	259.0	3.9	203	21.30	1.20	0.03	2.20

Sample No.	Ce*	Pr*	Nd*	Sm*	Eu*	Gd*	Tb*	Dy*	Ho*
160801	3.80	0.52	2.20	0.64	0.36	0.61	0.10	0.65	0.19

Sample No.	Er*	Tm*	Yb*	Lu*	Li*	Sc*	Hf*	Tl*
160801	0.58	0.10	0.78	0.14	10	38.00	5.35	10

Sample No.	Sample Type	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
160801	Bedrock	15.45	7.86	27.90	37.70	0.19	2.72	2.66