Fact Sheet for <b>Occurence 1833

					Norsk versjon
	THE ORE DATABASE
	Occurence 1833 - 069 Selåga
	(Object Id: 2764) (Last updated: 05.09.2018)

Belongs to the Province: Mofjellet sink-bly

Location

County:

Nordland

Municipality:

Rana (1833)

Map 1:50000:

Storforshei (2027-4)

Map 1:250000:

Mo i Rana

Coordinate system:

EU89-UTM Zone 33

East:

473560 m.

North:

7350149 m.

Longitude:

14.4112220

Latitude:

66.2701720

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Resource

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

Importance

Raw material meaning:

Not Assessed (reg. 18.02.2015)

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:	,15 thousand tons

Products

Element/product Crude ore grade or quality Reg. date

Ag 6 ppm 12.03.1992

Cu .3 % 12.03.1992

Kis 80 % 12.03.1992

Pb .1 % 12.03.1992

Zn 1.5 % 12.03.1992

Operations

From - To Activity Comments

1917 - 1917 Pitting

1976 - 1976 Geophysics

1981 - 1981 Core drilling

1991 - 1991 Geology Company/Institution :NGU - malmreg.

Mineralization

Era: Proterozoic Period: Neoproterozoic

Genesis: Sedex Form: Lens

Main texture: Porphyroblastic Min. distribution: Massive (>50 % ore minerals)

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

Strike/Dip: Direction: 270

Plunge: 30

Stratigraphic classification of host rock

Era: Proterozoic Period: Neoproterozoic

Province: Caledonides

Geotec.unit: Rødingsfjell Nappe Complex

Tectonic complex: Slagfjelldekket

Igneous complex:

Group: Mofjellgruppen Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Muscovite Subordinate mineral (1-10%)

Ore mineral Pyrite Major mineral (>10%)

Ore mineral Sphalerite Subordinate mineral (1-10%)

Ore mineral Pyrrhotite Subordinate mineral (1-10%)

Ore mineral Chalcopyrite Accessory mineral (<1%)

Lithology:

Relationship Rock Origin

Host rock Muskovittgneis Sedimentary
Original rock :Greywacke

Metamorphic facies :Amphibolite

Wall rock Granatglimmergneis Extrusive
Original rock :Tuff

Metamorphic facies :Amphibolite

Structures

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

Host rock Mineral lineation Strike/Dip :270 / 30 Post-mineralisation ;...Effect :Modifies

Host rock Fold axis Strike/Dip :270 / 30 Post-mineralisation ;...Effect :Modifies

Information(s) in free text format

Free text

To skjerp i forskjellig nivå og bergarter. Hovedskjerpet er relativt stort med en høyde på 4 m. Det ble funnet i 1909 og drevet i 1917. Mineraliseringen er knyttet til en lys muskovittgneis-horisont som ligger i grå Mofjellgneis. Skjerpet er drevet inn i en større foldeombøyning med fortykning av malmen. Det er hyppig småfolding av gneisene i hele skjerpesonen. Massivmalmen er ca. 1 m mektig i ombøyningen. Malmen består av grovkornet svovelkis i grunnmasse av kvarts og sinkblende og stedvis noe magnetkis (prøve 04 og 07). Svovelkiskubene er gjennomsnittlig 2-3 mm, ofte oppimot 10 mm. I foldeombøyningene er malmen ofte mer grovkornet og anriket på sinkblende (prøve 01, 02 og 03). Kvartslinser (med svovelkis) er vanlig i ombøyningene. Over og under den 0.5-1 m mektige massivmalm-sonen er det dm-mektige semimassive-massive mineraliseringer over ca. 2 m mektighet i muskovittgneisen. Skjerp 1 ble først anmeldt i 1917: Liten røsk (3 m3 tipp). Svovelkis-disseminasjon (ca. 30 % over 0.5 m) i granatglimmergneis (middelskornet). Anrikninger i cm-mektige bånd, ofte bundet til kvartslinser sammen med staurolitt og litt sinkblende (prøve 08). Denne mineraliseringen befinner seg lavere i stratigrafien enn hovedskjerpet.

Bibliography:

From NGU's Reference Archive:

Søvegjarto, U.; Marker, M.; Gjelle, S. , 1989

Storforshei. Berggrunnskart; Storforshei; 20274; 1:50 000; trykt i farger;

;Norges geologiske undersøkelse;KART

Fieldsamples

Sample No. Sample type Miscellanrous

NO0645.01 Bedrock

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

Comment: Grovkornet py-sl-massivmalm.

No. of registrated element analyses = 1

NO0645.02 Bedrock

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

Comment: Grovkornet py-sl-massivmalm.

No. of registrated element analyses = 1

NO0645.03 Bedrock

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

Comment: Grovkornet py-sl-massivmalm.

No. of registrated element analyses = 1

NO0645.04 Bedrock

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

Comment: Grovkornet py-sl-massivmalm.

No. of registrated element analyses = 1

NO0645.05 Bedrock

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

Comment: Muskovittskifer med py-sl-po-diss.

No. of registrated element analyses = 1

NO0645.06 Bedrock

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

Comment: Lys, finkornet muskovittskifer fra ligg.

No. of registrated element analyses = 1

NO0645.07 Bedrock

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

Comment: Middelskornet massiv py-malm.

No. of registrated element analyses = 1

SEL-01 Dump

Sampler: T. Bjerkgård

Comment: Massive py-ore

No. of registrated element analyses = 1

SEL-02 Dump

Sampler: T. Bjerkgård

Comment: Vein network of py and po in quartz-sericite schist

No. of registrated element analyses = 1

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

Name of Locality: Skjerp 1

(Object Id: 3367 69,01,00)

Location

County: Nordland Municipality: Rana (1833)

Map 1:50000: Storforshei (2027-4) Map 1:250000: Mo i Rana

Coordinate system: EU89-UTM Zone 33

East: 474252 m. North: 7349717 m.

Longitude: 14.4267200 Latitude: 66.2663590

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Resource

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

Element(s): Kis Zn Cu

Resources and production

Activity: Pitting Reserves:

Operating method: Historical production:

Information(s) in free text format

Free text

Skjerp 1 ble først anmeldt i 1917: Liten røsk (3 m3 tipp). Svovelkis-disseminasjon (ca. 30 % over 0.5 m) i granatglimmergneis (middelskornet). Anrikninger i cm-mektige bånd, ofte bundet til kvartslinser sammen med staurolitt og litt sinkblende (prøve 08). Denne mineraliseringen befinner seg lavere i stratigrafien enn hovedskjerpet.

Fieldsamples

Sample No. Sample type Miscellanrous

NO0645.08 Bedrock

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

Comment: Kvartslinse med py.

No. of registrated element analyses = 1

SELS-03 Bedrock

Sampler: T. Bjerkgård

Comment: Semimassive py veins in quartz-sericite schist

No. of registrated element analyses = 1

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

Analyse Results

from

Deposit Area 1833 - 069 Selåga

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#

NO0645.01 Bedrock 997 6791 87 20 3 1.9 44.0

NO0645.02 Bedrock 1186 8870 34 52 6 1.7 51.0

NO0645.03 Bedrock 687 5449 18 50 5 1.9 53.0

NO0645.04 Bedrock 1269 5589 16 47 6 2.7 56.0

NO0645.05 Bedrock 632 3601 10 33 4 1.0 27.0

NO0645.06 Bedrock 23 96 18 2 2 .1 2.0

NO0645.07 Bedrock 649 881 20 55 3 3.2 75.0

NO0645.08 Bedrock 563 68 5 16 2 1.4 6.0

SELS-03 Bedrock 244 217 27 11 4 1.0 -10.0

SEL-01 Dump 459 4180 159 61 3 2.5 -10.0

SEL-02 Dump 1400 3070 76 61 4 1.8 -10.0

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

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

NO0645.01 4.0 1.0 245 26.2 3 7.00 2 2

NO0645.02 7.0 1.0 241 40.0 3 3.00 2 3

NO0645.03 10.0 11.0 303 20.6 3 6.00 2 2

NO0645.04 3.0 4.0 320 16.2 7 3.00 3 2

NO0645.05 8.0 2.0 286 8.6 11 6.00 2 2

NO0645.06 3.0 1.0 11 .7 137 1.00 2 2

NO0645.07 7.0 7.0 335 .2 5 5.00 2 2

NO0645.08 5.0 6.0 10 .2 4 19.00 2 2

SELS-03 19 1.8 20 9.00 2 -1 -1

SEL-01 447 15.3 10 -1.00 -1 -1 -1

SEL-02 320 15.5 10 -1.00 2 -1 -1

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

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

NO0645.01 15.99 1 3 164 16.99

NO0645.02 33.88 2 4 339 25.48

NO0645.03 42.97 2 5 274 22.39

NO0645.04 36.92 3 3 355 26.07

NO0645.05 16.48 1 2 208 18.73

NO0645.06 .31 1 1 32 .66

NO0645.07 47.77 1 3 242 21.26

NO0645.08 15.59 1 2 180 16.65

SELS-03 15.00 2.00 -1.00 1.00 164 10.75

SEL-01 30.00 -1.00 -1.00 3.00 99 24.70

SEL-02 71.00 2.00 -1.00 2.00 145 25.50

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

Sample No. Th* U* W* Sr* La* B* Te*

NO0645.01 1.00 5.00 5 1.0 2.00 2

NO0645.02 1.00 5.00 6 1.0 2.00 2

NO0645.03 1.00 5.00 1 1.0 2.00 2

NO0645.04 1.00 5.00 9 1.0 2.00 9

NO0645.05 1.00 5.00 5 1.0 2.00 9

NO0645.06 23.00 5.00 1 4.0 11.00 2

NO0645.07 1.00 5.00 3 1.0 2.00 10

NO0645.08 1.00 5.00 2 1.0 2.00 12

SELS-03 1.00

SEL-01 17.00

SEL-02 17.00

Element/product	Crude ore grade or quality	Reg. date
Ag	6 ppm	12.03.1992
Cu	.3 %	12.03.1992
Kis	80 %	12.03.1992
Pb	.1 %	12.03.1992
Zn	1.5 %	12.03.1992

From - To	Activity	Comments
1917 - 1917	Pitting
1976 - 1976	Geophysics
1981 - 1981	Core drilling
1991 - 1991	Geology	Company/Institution :NGU - malmreg.

Era:	Proterozoic	Period:	Neoproterozoic
Genesis:	Sedex	Form:	Lens
Main texture:	Porphyroblastic	Min. distribution:	Massive (>50 % ore minerals)

	Province:	Caledonides
	Geotec.unit:	Rødingsfjell Nappe Complex
	Tectonic complex:	Slagfjelldekket
	Igneous complex:

Relationship	Mineral	Amount
Gangue mineral	Quartz	Major mineral (>10%)
Gangue mineral	Muscovite	Subordinate mineral (1-10%)
Ore mineral	Pyrite	Major mineral (>10%)
Ore mineral	Sphalerite	Subordinate mineral (1-10%)
Ore mineral	Pyrrhotite	Subordinate mineral (1-10%)
Ore mineral	Chalcopyrite	Accessory mineral (<1%)

Relationship	Rock	Origin
Host rock	Muskovittgneis	Sedimentary Original rock :Greywacke
		Metamorphic facies :Amphibolite
Wall rock	Granatglimmergneis	Extrusive Original rock :Tuff
		Metamorphic facies :Amphibolite

Location:	Type:	Orientation(360 gr.):	Relation to min.:
Host rock	Mineral lineation	Strike/Dip :270 / 30	Post-mineralisation ;...Effect :Modifies
Host rock	Fold axis	Strike/Dip :270 / 30	Post-mineralisation ;...Effect :Modifies

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
NO0645.01	Bedrock	997	6791	87	20	3	1.9	44.0
NO0645.02	Bedrock	1186	8870	34	52	6	1.7	51.0
NO0645.03	Bedrock	687	5449	18	50	5	1.9	53.0
NO0645.04	Bedrock	1269	5589	16	47	6	2.7	56.0
NO0645.05	Bedrock	632	3601	10	33	4	1.0	27.0
NO0645.06	Bedrock	23	96	18	2	2	.1	2.0
NO0645.07	Bedrock	649	881	20	55	3	3.2	75.0
NO0645.08	Bedrock	563	68	5	16	2	1.4	6.0
SELS-03	Bedrock	244	217	27	11	4	1.0	-10.0
SEL-01	Dump	459	4180	159	61	3	2.5	-10.0
SEL-02	Dump	1400	3070	76	61	4	1.8	-10.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*
NO0645.01	4.0	1.0	245	26.2	3	7.00		2	2
NO0645.02	7.0	1.0	241	40.0	3	3.00		2	3
NO0645.03	10.0	11.0	303	20.6	3	6.00		2	2
NO0645.04	3.0	4.0	320	16.2	7	3.00		3	2
NO0645.05	8.0	2.0	286	8.6	11	6.00		2	2
NO0645.06	3.0	1.0	11	.7	137	1.00		2	2
NO0645.07	7.0	7.0	335	.2	5	5.00		2	2
NO0645.08	5.0	6.0	10	.2	4	19.00		2	2
SELS-03			19	1.8	20	9.00	2	-1	-1
SEL-01			447	15.3	10	-1.00	-1	-1	-1
SEL-02			320	15.5	10	-1.00	2	-1	-1

Sample No.	Se*	Ga*	Ge*	In*	S%	V*	Cr*	Mn*	Fe%
NO0645.01					15.99	1	3	164	16.99
NO0645.02					33.88	2	4	339	25.48
NO0645.03					42.97	2	5	274	22.39
NO0645.04					36.92	3	3	355	26.07
NO0645.05					16.48	1	2	208	18.73
NO0645.06					.31	1	1	32	.66
NO0645.07					47.77	1	3	242	21.26
NO0645.08					15.59	1	2	180	16.65
SELS-03	15.00	2.00	-1.00	1.00				164	10.75
SEL-01	30.00	-1.00	-1.00	3.00				99	24.70
SEL-02	71.00	2.00	-1.00	2.00				145	25.50