Faktarka for Forekomstområde 919

					English version
	MALMDATABASEN
	Forekomstområde 919 - 017
	(Sist oppdatert 22.okt.2025)

Navn på deposit area : Seljåsen

(Objekt Id : 0919,017,00,00)

Lokalisering

Fylke :

Aust-Agder (09)

Kommune :

Froland (0919)

Kart 1:50000:

Nelaug (1612-3)

Kart 1:250000:

Arendal

Markeringspunkt:

Lengdegrad:

8.6523560

Breddegrad:

58.4803370

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-koord:

479726 m.

Y-koord:

6482242 m.

Materialtype

	Hovedtype:	Jernlegeringsmetaller (Cr,Ni,Co,V,Mo,W)	Subtype:	Nikkel
			Element(s):	Ni Cu

Production

Activity:	Prøvedrift	Reserves:
Prod. method:	Underjordsdrift	Production:
Prod. status:		Volume of dump:

Betydning

Offentlig: Not Assessed (reg. 20.03.2017)

Economical: Kan være viktig , (Confirmed 04.mai.2007 by Morten Often)

Operations

From - To Activity Comments

2005 - 2006 Geophysics Company/Institution :Falconbridge/Blackstone

Airborne.

2006 - 2007 Core drilling Company/Institution :Blackstone Ventures Inc.

Mineralization

Era: Proterozoic Period: Mesoproterozoic

Dating: Method:

Genesis: Ortomagmatisk Form:

Main texture: Min. distribution:

Main grain size: Main alteration:

Strike/Dip: Direction:

Plunge:

Stratigraphic classification of host rock

Era: Proterozoic Period: Mesoproterozoic

Province: South Norwegian Basement Province

Geotec.unit: Bamble Complex

Tectonic complex:

Igneous complex:

Group: Formation:

Opplysning(er) i fritekstformat

Fri tekst

Lokalisering justert 27.05.2024, men ikke bekreftet i felt. WGS84 sone 32: E 479737 N 6482237

Bibliography:

From NGU's Reference Archive:

Brickwood, John D. , 1986

The geology and mineralogy of some Fe-Cu-Ni sulphide deposits in the Bamble area, Norway.

;Norsk geologisk forening;TIDSSKRIFTARTIKKEL;Norsk geologisk tidsskrift; No.66 (3);189-208 pages

Abstract:

The ore assemblages and textures displayed by some sulphide deposits associated with mafic intrusions in the Bamble area are the product of three-stages of ore formation: primary orthomagmatic crystallisation, Sveconorwegian metamorphic crystallisation, and supergene alteration. Immiscible sulphide-oxide melts se- gregated from several contaminated noritic melts during their passive emplace- ment, probably during the very early stages of the Sveconorwegian Regeneration (1200-1160 Ma).

References not to be found in NGU's Reference Archive.:

Fox, D. 2006. Final Report on BAMBLE – 2006 for XSTRATA/Sulfidmalm.. BV4838 Report, 102 p.

Fieldsamples

Sample No. Sample type Miscellanrous

Seljeåsen04 Dump

Sampler :Mansur/Sandstad/...Stored :Løkken/...Size(kg) :2

Kommentar :Massiv magnetkis+kobberkis, finkornet, aggregater av kobberkis

No. of registrated element analyses = 1

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

Navn på locality : Nedre stoll øst

(Objekt Id : 0919,017,01,00)

Lokalisering

Fylke : Aust-Agder (09) Kommune : Froland (0919)

Kart 1:50000: Arendal (1611-4) Kart 1:250000: Arendal

Markeringspunkt: Lengdegrad: 8.6520750 Breddegrad: 58.4793300

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-koord: 479710 m. Y-koord: 6482129 m.

Materialtype

Hovedtype: Jernlegeringsmetaller (Cr,Ni,Co,V,Mo,W) Subtype: Nikkel

Element(s): Ni Cu

Production

Activity: Røsking Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Navn på locality : Nedre stoll vest

(Objekt Id : 0919,017,02,00)

Lokalisering

Fylke : Aust-Agder (09) Kommune : Froland (0919)

Kart 1:50000: Arendal (1611-4) Kart 1:250000: Arendal

Markeringspunkt: Lengdegrad: 8.6519040 Breddegrad: 58.4792040

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-koord: 479699 m. Y-koord: 6482116 m.

Materialtype

Hovedtype: Jernlegeringsmetaller (Cr,Ni,Co,V,Mo,W) Subtype: Nikkel

Element(s): Ni Cu

Production

Activity: Røsking Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Fieldsamples

Sample No. Sample type Miscellanrous

Seljeåsen01 Bedrock

Sampler :Mansur/Sandstad/...Stored :Løkken/...Size(kg) :2

Kommentar :Magnetkis+kobberkis aggregater/disseminasjon i pyroksenitt

No. of registrated element analyses = 1

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

Navn på locality : Øvre stoll vest

(Objekt Id : 0919,017,03,00)

Lokalisering

Fylke : Aust-Agder (09) Kommune : Froland (0919)

Kart 1:50000: Arendal (1611-4) Kart 1:250000: Arendal

Markeringspunkt: Lengdegrad: 8.6517290 Breddegrad: 58.4796350

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-koord: 479690 m. Y-koord: 6482164 m.

Materialtype

Hovedtype: Jernlegeringsmetaller (Cr,Ni,Co,V,Mo,W) Subtype: Nikkel

Element(s): Ni Cu

Fieldsamples

Sample No. Sample type Miscellanrous

Seljeåsen02 Bedrock

Sampler :Mansur/Sandstad/...Stored :Løkken/...Size(kg) :2

Kommentar :Magnetkis+kobberkis disseminasjn i pyroksnitt

No. of registrated element analyses = 1

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

Navn på locality : Øvre stoll øst

(Objekt Id : 0919,017,04,00)

Lokalisering

Fylke : Aust-Agder (09) Kommune : Froland (0919)

Kart 1:50000: Arendal (1611-4) Kart 1:250000: Arendal

Markeringspunkt: Lengdegrad: 8.6519840 Breddegrad: 58.4797790

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-koord: 479704 m. Y-koord: 6482180 m.

Materialtype

Hovedtype: Jernlegeringsmetaller (Cr,Ni,Co,V,Mo,W) Subtype: Nikkel

Element(s): Ni Cu

Production

Activity: Røsking Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Fieldsamples

Sample No. Sample type Miscellanrous

Seljeåsen03 Bedrock

Sampler :Mansur/Sandstad/...Stored :Løkken/...Size(kg) :2

Kommentar :Magnetkis+kobberkis disseminasjon/aggregater in metagabbro

No. of registrated element analyses = 1

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

Navn på locality : Sjaktåpning

(Objekt Id : 0919,017,05,00)

Lokalisering

Fylke : Aust-Agder (09) Kommune : Froland (0919)

Kart 1:50000: Arendal (1611-4) Kart 1:250000: Arendal

Markeringspunkt: Lengdegrad: 8.6516220 Breddegrad: 58.4800470

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-koord: 479684 m. Y-koord: 6482209 m.

Materialtype

Hovedtype: Jernlegeringsmetaller (Cr,Ni,Co,V,Mo,W) Subtype: Nikkel

Element(s): Ni Cu

Production

Activity: Prøvedrift Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Navn på locality : Dagskjæring NV

(Objekt Id : 0919,017,06,00)

Lokalisering

Fylke : Aust-Agder (09) Kommune : Froland (0919)

Kart 1:50000: Nelaug (1612-3) Kart 1:250000: Arendal

Markeringspunkt: Lengdegrad: 8.6514100 Breddegrad: 58.4806220

EU89-UTM Zone 32 (Coordinates IS confirmed)

X-koord: 479671 m. Y-koord: 6482274 m.

Materialtype

Hovedtype: Jernlegeringsmetaller (Cr,Ni,Co,V,Mo,W) Subtype: Nikkel

Element(s): Ni Cu

Production

Activity: Røsking Reserves:

Prod. method: Production:

Prod. status: Volume of dump:

Fieldsamples

Sample No. Sample type Miscellanrous

Seljeåsen05 Dump

Sampler :Mansur/Sandstad/...Stored :Løkken/...Size(kg) :2

Kommentar :Moderat disseminasjon av magnetkis i pyroksenitt

No. of registrated element analyses = 1

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

Analyse Results

from

Forekomstområde 919 - 017 Seljåsen

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* Au#

Seljeåsen01 Bedrock 544 168 1 189 1140 .1 3.0

Seljeåsen02 Bedrock 1325 128 0 348 1990 .3 17.0

Seljeåsen03 Bedrock 1135 73 4 388 1750 .3 5.0

Seljeåsen04 Dump 2360 128 1 762 3380 .4 6.0

Seljeåsen05 Dump 361 139 1 157 630 .1 4.0

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

Sample No. Pt# Pd# As* Cd* Ba* Mo* Sn* Sb* Bi*

Seljeåsen01 5.0 4.0 4 .2 20 0.46 0 0 0

Seljeåsen02 2.5 2.0 2 .1 10 0.44 0 0 0

Seljeåsen03 2.5 5.0 6 .2 40 1.27 0 0 0

Seljeåsen04 2.5 11.0 15 .1 10 2.65 0 1 1

Seljeåsen05 2.5 3.0 3 .2 10 0.65 1 0 0

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

Sample No. Se* Ga* Ge* In* S% V* Cr* Mn* Fe%

Seljeåsen01 2.00 8.75 0.13 0.09 195 255 2280 16.15

Seljeåsen02 5.00 6.56 0.17 0.08 176 270 1835 19.60

Seljeåsen03 4.00 13.50 0.15 0.05 127 79 892 16.75

Seljeåsen04 11.00 9.89 0.30 0.11 13.55 279 112 1675 32.20

Seljeåsen05 3.00 8.52 0.06 0.06 342 153 2240 17.15

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

Sample No. Th* U* W* Rb* Sr* Y* Zr* Nb* Ta*

Seljeåsen01 0.10 0.05 0 1.6 33.0 8.2 7 0.70 0.06

Seljeåsen02 0.02 0.05 0 1.1 21.7 4.1 6 0.10 0.03

Seljeåsen03 0.05 0.05 0 1.9 188.5 2.2 2 0.20 0.03

Seljeåsen04 0.04 0.05 0 0.9 9.1 2.8 1 0.20 0.03

Seljeåsen05 0.31 0.20 1 1.3 6.7 6.6 11 0.60 0.05

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

Sample No. Cs* La* Ce* Li* Be* P* Sc* Te* Hf*

Seljeåsen01 0.33 1.10 3.03 4 0 150 40.70 0.12 0.30

Seljeåsen02 0.31 0.03 0.51 3 0 20 36.50 0.10 0.20

Seljeåsen03 0.33 0.60 1.14 9 0 30 18.80 0.10 0.10

Seljeåsen04 0.11 0.03 0.86 5 0 30 30.80 0.07 0.10

Seljeåsen05 0.14 1.20 3.32 4 0 180 45.10 0.11 0.40

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

Sample No. Re* Tl*

Seljeåsen01 7 0

Seljeåsen02 27 0

Seljeåsen03 65 0

Seljeåsen04 72 0

Seljeåsen05 8 0

From - To	Activity	Comments
2005 - 2006	Geophysics	Company/Institution :Falconbridge/Blackstone
		Airborne.
2006 - 2007	Core drilling	Company/Institution :Blackstone Ventures Inc.

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

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

Activity:	Røsking	Reserves:
Prod. method:		Production:
Prod. status:		Volume of dump:

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
Seljeåsen01	Bedrock	544	168	1	189	1140	.1	3.0
Seljeåsen02	Bedrock	1325	128	0	348	1990	.3	17.0
Seljeåsen03	Bedrock	1135	73	4	388	1750	.3	5.0
Seljeåsen04	Dump	2360	128	1	762	3380	.4	6.0
Seljeåsen05	Dump	361	139	1	157	630	.1	4.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*
Seljeåsen01	5.0	4.0	4	.2	20	0.46	0	0	0
Seljeåsen02	2.5	2.0	2	.1	10	0.44	0	0	0
Seljeåsen03	2.5	5.0	6	.2	40	1.27	0	0	0
Seljeåsen04	2.5	11.0	15	.1	10	2.65	0	1	1
Seljeåsen05	2.5	3.0	3	.2	10	0.65	1	0	0

Sample No.	Se*	Ga*	Ge*	In*	S%	V*	Cr*	Mn*	Fe%
Seljeåsen01	2.00	8.75	0.13	0.09		195	255	2280	16.15
Seljeåsen02	5.00	6.56	0.17	0.08		176	270	1835	19.60
Seljeåsen03	4.00	13.50	0.15	0.05		127	79	892	16.75
Seljeåsen04	11.00	9.89	0.30	0.11	13.55	279	112	1675	32.20
Seljeåsen05	3.00	8.52	0.06	0.06		342	153	2240	17.15

Sample No.	Th*	U*	W*	Rb*	Sr*	Y*	Zr*	Nb*	Ta*
Seljeåsen01	0.10	0.05	0	1.6	33.0	8.2	7	0.70	0.06
Seljeåsen02	0.02	0.05	0	1.1	21.7	4.1	6	0.10	0.03
Seljeåsen03	0.05	0.05	0	1.9	188.5	2.2	2	0.20	0.03
Seljeåsen04	0.04	0.05	0	0.9	9.1	2.8	1	0.20	0.03
Seljeåsen05	0.31	0.20	1	1.3	6.7	6.6	11	0.60	0.05

Sample No.	Cs*	La*	Ce*	Li*	Be*	P*	Sc*	Te*	Hf*
Seljeåsen01	0.33	1.10	3.03	4	0	150	40.70	0.12	0.30
Seljeåsen02	0.31	0.03	0.51	3	0	20	36.50	0.10	0.20
Seljeåsen03	0.33	0.60	1.14	9	0	30	18.80	0.10	0.10
Seljeåsen04	0.11	0.03	0.86	5	0	30	30.80	0.07	0.10
Seljeåsen05	0.14	1.20	3.32	4	0	180	45.10	0.11	0.40