Fact Sheet for <b>Occurence 1839

					Norsk versjon
	THE ORE DATABASE
	Occurence 1839 - 001 Steinåga
	(Object Id: 2147) (Last updated: 10.11.2023)

Location

County:

Nordland

Municipality:

Beiarn (1839)

Map 1:50000:

Arstaddalen (2028-4)

Map 1:250000:

Mo i Rana

Coordinate system:

EU89-UTM Zone 33

East:

481813 m.

North:

7405316 m.

Longitude:

14.5868660

Latitude:

66.7656560

Show on map

Resource

	Resource Type:	Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn)	Resource Subtype:	Copper
			Element(s):	Cu

Importance

Raw material meaning:

Not Assessed (reg. 18.02.2015)

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:	Open pit and underground mining	Historical production:	,02 thousand tons

Operations

From - To Activity Comments

1975 - 1975 Geophysics Company/Institution :A/S Sulitjelma Gruber

Rekognoserende kartlegging og VLF-målinger.

1992 - 1992 Sampling Company/Institution :NGU

3 prøver.

Mineralization

Era: Proterozoic Period: Neoproterozoic

Genesis: Orthomagmatic formation Form: Lens

Main texture: Structureless Min. distribution: Disseminated (<20 % ore minerals)

Main grain size: Coarse grained (> 3 mm) Main alteration:

Strike/Dip: 20 / 80 Direction: 220

Plunge: 15

Stratigraphic classification of host rock

Era: Proterozoic Period: Neoproterozoic

Province:

Geotec.unit:

Tectonic complex: Øverste allokton

Igneous complex:

Group: Stabbursdalsgruppen Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Amphibole Major mineral (>10%)

Gangue mineral Plagioclase Subordinate mineral (1-10%)

Gangue mineral Potassic feldspar Subordinate mineral (1-10%)

Gangue mineral Garnet Subordinate mineral (1-10%)

Gangue mineral Quartz Subordinate mineral (1-10%)

Gangue mineral Biotite Subordinate mineral (1-10%)

Ore mineral Pyrrhotite Major mineral (>10%)

Ore mineral Chalcopyrite Subordinate mineral (1-10%)

Lithology:

Relationship Rock Origin

Host rock amfibolitt Intrusive
Original rock :Gabbro

Metamorphic facies :Amphibolite

Wall rock glimmergneis Sedimentary
Original rock :Greywacke

Metamorphic facies :Amphibolite

Structures

Location: Type: Orientation(360 gr.): Relation to min.:

Wall rock Foliation Strike/Dip :20 / 80 Post-mineralisation ;...Effect :None

Wall rock Fold axis Strike/Dip :220 / 15 Post-mineralisation ;...Effect :None

Information(s) in free text format

Abstract

21.6.2016 Basert på beskrivelser av Wilberg/Furuhaug fra 1992 og undersøkelsesrapport med rekognoserende kartlegging og VLF-målinger fra Sulitjelma Gruber fra 1975 ser det ut til at området er uten økonomiske interesse for framtidig mineralutvinning.

Free text

Skjerpet er 4x3m og 2m dypt, med 20m3 tipp. Bergarten i skjerpet er amfibolitt, overveiende grovkornet med opptil 2-3cm store hornblende- krystaller. Amfibolitten fører disseminasjon av magnetkis og litt kobber- kis (sulfider også i årer) over hele skjerpebredden (prøve 01 og 02) - det er en mektighet på minst 4m. I noen få partier (bånd?) er amfibolitten mer fin-kornet og fører semimassiv magnetkis og kobberkis over mektigheter på 5-10cm (03). Andre synlige gangmineraler, i tillegg til hornblende, er det litt granat, kvarts, biotitt og feltspat. Sidebergart er lys glimmergneis med 10-20cm mektige amfibolittbånd. Terrenget er overdekket og blokkrikt, så størrelsen på amfibolitten kan ikke bestemmes. I elveskrenten (Steinåga), UTM 481800 7405330, og i et gammelt elveløp 30m nord for Steinåga er det 3 mineralisert (lite sulfider) amfibolitter over 80m mektighet. Sannsynligvis er det flere små amfibolittlinser. Den vestligste er 4m, den midterste er 1m og den østligste er 1.5m mektig.

Photo(s) from the Deposit area:

Photo no. 1 showing Kart"

Bibliography:

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

Søyland-Hansen, T. & Harrison, J. (1975) Geologisk kartlegging og VLF måling i Steinåga, Beiardalen, Beiarn kommune. Sulitjelma Gruber A/S. BV2056

Fieldsamples

Sample No. Sample type Miscellanrous

NO-SÅ-17-3 Dump

Sampler: P.M. Ihlen/L.P. Nilsson/...Stored: Løkken

Comment: Ultramafic amphibolite, foliated with dark, semi-massive, fine-grained po-garnet band

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

NO-SÅ-17-4 Dump

Sampler: P.M. Ihlen/L.P. Nilsson/...Stored: Løkken

Comment: Hornblende porphyroblasts (3-10 mm), randomised in dark green bands, innermost po-dissemination and po-aggregates

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

NO-SÅ-17-8 Dump

Sampler: P.M. Ihlen/L.P. Nilsson/...Stored: Løkken

Comment: Pyrrhotite as weak dissemination in ultramafic bands consisting of randomised hornblende (2-10 mm)

No. of registrated element analyses = 1

No. of registrated oxide analyses = 1

NO0021.01 Bedrock

Sampler: Wilberg, R./...Stored: Løkken

Comment: Grovkornet amfibolitt med disseminasjon av magnetkis og kobberkis.

No. of registrated element analyses = 1

NO0021.02 Bedrock

Sampler: Wilberg, R./...Stored: Løkken

Comment: Grovk. amf. med diss. po + cpy.

No. of registrated element analyses = 1

NO0021.03 Bedrock

Sampler: Wilberg, R./...Stored: Løkken

Comment: Fink. semimassiv po-cpy i amf.

No. of registrated element analyses = 1

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

Analyse Results

from

Deposit Area 1839 - 001 Steinåga

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#

NO-SÅ-17-3 Dump 500 83 -5 268 798

NO-SÅ-17-4 Dump 829 106 -5 110 339

NO-SÅ-17-8 Dump 1480 122 -5 110 325

NO0021.01 Bedrock 823 116 19 74 182 .1 15.0

NO0021.02 Bedrock 5470 63 22 174 423 .9 9.0

NO0021.03 Bedrock 1093 32 2 394 1081 .1 6.0

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

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

NO-SÅ-17-3 -10 14 15.60

NO-SÅ-17-4 -10 47 6.03

NO-SÅ-17-8 -10 58 5.84

NO0021.01 4.0 11.0 6 .2 3 1.00 2 6 3.82

NO0021.02 3.0 8.0 2 .4 9 2.00 2 4 10.12

NO0021.03 3.0 83.0 2 .2 5 2.00 2 13 25.77

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

Sample No. V* Cr* Mn* Fe% Th* U* W* Sr* Y*

NO-SÅ-17-3 154 225 23.80 19.0

NO-SÅ-17-4 139 438 19.40 22.0

NO-SÅ-17-8 158 547 19.00 21.0

NO0021.01 38 64 352 7.71 3.00 9.00 1 8.0

NO0021.02 16 51 261 15.45 2.00 5.00 1 14.0

NO0021.03 12 23 247 33.51 2.00 5.00 1 24.0

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

Sample No. Zr* Nb* La* B* Mg*

NO-SÅ-17-3 17 -5.00 3

NO-SÅ-17-4 63 -5.00 5

NO-SÅ-17-8 67 -5.00 5

NO0021.01 23.00 4

NO0021.02 10.00 3

NO0021.03 8.00 2

Oxide analyses
( All values are in % )

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

NO-SÅ-17-3 Dump 9.10 3.50 0.14 34.00 0.12 4.66 7.45

NO-SÅ-17-4 Dump 38.10 10.40 0.47 27.70 0.34 7.71 7.97

NO-SÅ-17-8 Dump 36.80 10.60 0.48 27.10 0.32 8.05 7.94

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

Sample No. Na2O K2O P2O5 Loss Sum

NO-SÅ-17-3 0.24 0.07 1.94 20.00 81.00

NO-SÅ-17-4 0.96 0.18 0.55 4.58 99.00

NO-SÅ-17-8 1.01 0.19 0.26 5.47 98.00

From - To	Activity	Comments
1975 - 1975	Geophysics	Company/Institution :A/S Sulitjelma Gruber
		Rekognoserende kartlegging og VLF-målinger.
1992 - 1992	Sampling	Company/Institution :NGU
		3 prøver.

Era:	Proterozoic	Period:	Neoproterozoic
Genesis:	Orthomagmatic formation	Form:	Lens
Main texture:	Structureless	Min. distribution:	Disseminated (<20 % ore minerals)

	Province:
	Geotec.unit:
	Tectonic complex:	Øverste allokton
	Igneous complex:

Relationship	Mineral	Amount
Gangue mineral	Amphibole	Major mineral (>10%)
Gangue mineral	Plagioclase	Subordinate mineral (1-10%)
Gangue mineral	Potassic feldspar	Subordinate mineral (1-10%)
Gangue mineral	Garnet	Subordinate mineral (1-10%)
Gangue mineral	Quartz	Subordinate mineral (1-10%)
Gangue mineral	Biotite	Subordinate mineral (1-10%)
Ore mineral	Pyrrhotite	Major mineral (>10%)
Ore mineral	Chalcopyrite	Subordinate mineral (1-10%)

Relationship	Rock	Origin
Host rock	amfibolitt	Intrusive Original rock :Gabbro
		Metamorphic facies :Amphibolite
Wall rock	glimmergneis	Sedimentary Original rock :Greywacke
		Metamorphic facies :Amphibolite

Location:	Type:	Orientation(360 gr.):	Relation to min.:
Wall rock	Foliation	Strike/Dip :20 / 80	Post-mineralisation ;...Effect :None
Wall rock	Fold axis	Strike/Dip :220 / 15	Post-mineralisation ;...Effect :None

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
NO-SÅ-17-3	Dump	500	83	-5	268	798
NO-SÅ-17-4	Dump	829	106	-5	110	339
NO-SÅ-17-8	Dump	1480	122	-5	110	325
NO0021.01	Bedrock	823	116	19	74	182	.1	15.0
NO0021.02	Bedrock	5470	63	22	174	423	.9	9.0
NO0021.03	Bedrock	1093	32	2	394	1081	.1	6.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sb*	Bi*	S%
NO-SÅ-17-3			-10		14				15.60
NO-SÅ-17-4			-10		47				6.03
NO-SÅ-17-8			-10		58				5.84
NO0021.01	4.0	11.0	6	.2	3	1.00	2	6	3.82
NO0021.02	3.0	8.0	2	.4	9	2.00	2	4	10.12
NO0021.03	3.0	83.0	2	.2	5	2.00	2	13	25.77

Sample No.	V*	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*	Y*
NO-SÅ-17-3	154	225		23.80					19.0
NO-SÅ-17-4	139	438		19.40					22.0
NO-SÅ-17-8	158	547		19.00					21.0
NO0021.01	38	64	352	7.71	3.00	9.00	1	8.0
NO0021.02	16	51	261	15.45	2.00	5.00	1	14.0
NO0021.03	12	23	247	33.51	2.00	5.00	1	24.0

Sample No.	Zr*	Nb*	La*	B*	Mg*
NO-SÅ-17-3	17	-5.00			3
NO-SÅ-17-4	63	-5.00			5
NO-SÅ-17-8	67	-5.00			5
NO0021.01			23.00	4
NO0021.02			10.00	3
NO0021.03			8.00	2

Sample No.	Sample Type	SiO2	Al2O3	TiO2	Fe2O3	MnO	MgO	CaO
NO-SÅ-17-3	Dump	9.10	3.50	0.14	34.00	0.12	4.66	7.45
NO-SÅ-17-4	Dump	38.10	10.40	0.47	27.70	0.34	7.71	7.97
NO-SÅ-17-8	Dump	36.80	10.60	0.48	27.10	0.32	8.05	7.94

Sample No.	Na2O	K2O	P2O5	Loss	Sum
NO-SÅ-17-3	0.24	0.07	1.94	20.00	81.00
NO-SÅ-17-4	0.96	0.18	0.55	4.58	99.00
NO-SÅ-17-8	1.01	0.19	0.26	5.47	98.00