Fact Sheet for <b>Occurence 1833

					Norsk versjon
	THE ORE DATABASE
	Occurence 1833 - 008 Fisktjern
	(Object Id: 2163) (Last updated: 03.11.1999)

Belongs to the Province: Mofjellet sink-bly

Location

County:

Nordland

Municipality:

Rana (1833)

Map 1:50000:

Store Akersvandet (2027-3)

Map 1:250000:

Mo i Rana

Coordinate system:

EU89-UTM Zone 33

East:

479452 m.

North:

7342947 m.

Longitude:

14.5435940

Latitude:

66.2060090

Show on map

Resource

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

Importance

Raw material meaning:

Not Assessed (reg. 18.02.2015)

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:	,007 thousand tons

Mineralization

Era: Proterozoic Period: Neoproterozoic

Genesis: Sedex Form: Layer

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

Main grain size: Fine grained (< 1 mm) Main alteration:

Strike/Dip: 240 / 40 Direction: 40

Plunge: 30

Stratigraphic classification of host rock

Era: Proterozoic Period: Neoproterozoic

Province: Caledonides

Geotec.unit: Rødingsfjell Nappe Complex

Tectonic complex: Øverste allokton

Igneous complex:

Group: Plurdalsgruppen Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Biotite Major mineral (>10%)

Gangue mineral Amphibole Major mineral (>10%)

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Potassic feldspar Major mineral (>10%)

Gangue mineral Plagioclase Major mineral (>10%)

Ore mineral Pyrrhotite Major mineral (>10%)

Ore mineral Pyrite Subordinate mineral (1-10%)

Ore mineral Chalcopyrite Accessory mineral (<1%)

Lithology:

Relationship Rock Origin

Host rock Granat-hornblendegn. Extrusive
Original rock :Tuff

Metamorphic facies :Amphibolite

Host rock Glimmergneis Sedimentary
Original rock :Greywacke

Metamorphic facies :Amphibolite

Structures

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

Host rock Mineral lineation Strike/Dip :40 / 30 Post-mineralisation ;...Effect :None

Host rock Fold axis Strike :40 Post-mineralisation ;...Effect :None

Host rock Foliation Strike/Dip :240 / 40 Post-mineralisation ;...Effect :None

Information(s) in free text format

Free text

Det er utbrudt litt rusten gneis over ca. 30 m strøklengde i en bekkeskrent. Glimmergneis med svak impregnasjon av magnetkis, litt svovelkis og stedvis spor av kobberkis (prøve 01), og bånd av granat-hornblende-gneis med litt finfordelt magnetkis og svovelkis (02). Den fattige kis-impregnasjonen strekker seg over minst 3 m mektighet, og i blotninger i bekken ca. 150 m mot vest (på tvers av strøket) sees tilsvarende mineralisering. Sulfid-gehalten er ikke høyere enn det som er vanlig i de utbredte rustsonene i Mofjellgneisene.

Bibliography:

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

Kleine-Hering, R. 1969: Bericht zu den Geologischen Untersuchungen in der Umgebung des Akersvatn. Upubl. rapp. Bleikvassli Gruber.

Fieldsamples

Sample No. Sample type Miscellanrous

NO0037.01 Bedrock

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

Comment: Glimmergneis med litt po-py-cpy-diss.

No. of registrated element analyses = 1

NO0037.02 Bedrock

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

Comment: Granat-hornblendegneis med litt po-py-diss.

No. of registrated element analyses = 1

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

Analyse Results

from

Deposit Area 1833 - 008 Fisktjern

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#

NO0037.01 Bedrock 216 562 91 26 106 1.0 26.0

NO0037.02 Bedrock 123 164 11 16 10 .2 34.0

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

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

NO0037.01 1.0 1.0 2 7.4 89 14.00 2 2 1.39

NO0037.02 1.0 1.0 3 2.5 68 1.00 2 2 .31

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

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

NO0037.01 154 80 393 4.33 12.00 5.00 1 6.0 6.00

NO0037.02 32 7 167 1.54 3.00 5.00 1 13.0 2.00

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

Sample No. B*

NO0037.01 2

NO0037.02 2

Era:	Proterozoic	Period:	Neoproterozoic
Genesis:	Sedex	Form:	Layer
Main texture:	Banded	Min. distribution:	Disseminated (<20 % ore minerals)

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

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

Relationship	Rock	Origin
Host rock	Granat-hornblendegn.	Extrusive Original rock :Tuff
		Metamorphic facies :Amphibolite
Host rock	Glimmergneis	Sedimentary Original rock :Greywacke
		Metamorphic facies :Amphibolite

Location:	Type:	Orientation(360 gr.):	Relation to min.:
Host rock	Mineral lineation	Strike/Dip :40 / 30	Post-mineralisation ;...Effect :None
Host rock	Fold axis	Strike :40	Post-mineralisation ;...Effect :None
Host rock	Foliation	Strike/Dip :240 / 40	Post-mineralisation ;...Effect :None

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
NO0037.01	Bedrock	216	562	91	26	106	1.0	26.0
NO0037.02	Bedrock	123	164	11	16	10	.2	34.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sb*	Bi*	S%
NO0037.01	1.0	1.0	2	7.4	89	14.00	2	2	1.39
NO0037.02	1.0	1.0	3	2.5	68	1.00	2	2	.31

Sample No.	V*	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*	La*
NO0037.01	154	80	393	4.33	12.00	5.00	1	6.0	6.00
NO0037.02	32	7	167	1.54	3.00	5.00	1	13.0	2.00