Fact Sheet for <b>Occurence 5605 - 031 Jåvnejåkka</b>

					Norsk versjon
	THE ORE DATABASE
	Occurence 5605 - 031 Jåvnejåkka
	(Object Id: 1939) (Last updated: 04.02.2005)

Location

County:

Finnmark

Municipality:

Sør-Varanger (5605)

Map 1:50000:

Høybuktmoen (2434-3)

Map 1:250000:

Kirkenes

Coordinate system:

EU89-UTM Zone 36

East:

382855 m.

North:

7737194 m.

Longitude:

29.9710550

Latitude:

69.7167800

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Resource

	Resource Type:	Ferrous metals(Fe, Mn, Ti)	Resource Subtype:	Iron
			Element(s):	Fe

Importance

Raw material meaning:

Little Importance (reg. 18.02.2015)

Resources and production

	Activity:	Exploration	Reserves:
	Operating method:		Historical production:

Operations

From - To Activity Comments

1996 - 1996 Sampling Company/Institution :NGU

Mineralization

Era: Archean Period:

Genesis: Sedex Form: Layer

Main texture: Banded Min. distribution: Semi-massive (20-50 % ore minerals)

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

Strike/Dip: 5 / 20 Direction:

Plunge:

Stratigraphic classification of host rock

Era: Archean Period:

Province: Troms-Finnmark Basement Province

Geotec.unit:

Tectonic complex:

Igneous complex:

Group: Bjørnevann Group Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Amphibole Major mineral (>10%)

Gangue mineral Biotite Subordinate mineral (1-10%)

Ore mineral Magnetite Major mineral (>10%)

Ore mineral Pyrite Accessory mineral (<1%)

Lithology:

Relationship Rock Origin

Wall rock Amphibolite Extrusive
Original rock :Basalt

Metamorphic facies :Amphibolite

Wall rock Mica gneiss Sedimentary
Original rock :Greywacke

Metamorphic facies :Amphibolite

Structures

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

Host rock Foliation Strike/Dip :5 / 20 Post-mineralisation ;...Effect :None

Host rock Primary layering Strike/Dip :5 / 20 Syn-mineralisation ;...Effect :Controls

Information(s) in free text format

Free text

En sone med amfibolitt og kvartsbåndet jernmalm finnes nær grensen til Kirkenes gneis. Den er bare funnet i to lokaliteter, men kan følges kontinuerlig på det flymagnetiske kartet. Den kvartsbåndede jernmalmen er av tildels bra kvalitet , ca. 30 % Fe magn. Den rustne, middelskornige, kvartsbåndede magnetitt-mineraliseringen med noe svovelkis (prøve 01) har utgående i sjøkanten like NØ for der Jåvnejåkka renner ut i Langfjorden. (På geologisk kart 1 : 50 000 Høybuktmoen er mineraliseringen plottet lenger NØ. Fant ikke mineralisering der - sannsynligvis dreier det seg om en feilplotting.) Mineraliseringen er ved sjøkanten 0.5 m mektig, og ligger i migmatittisert glimmergneis med amfibolrike bånd. I mineraliseringens heng opptrer knapt 0.5 m mektig klorittomvandlet amfibolitt. Mineraliseringen fortsetter nordover under overdekket. Iflg. Iversen (1990) opptrer jernmalmen her (sannsynligvis litt lenger nord enn den forrannevnte strandsone-mineraliseringen) i tre adskilte horisonter. Hver sone er ca. 1 m mektig. Antallet "soner" kan være foldebetinget. Den magnetiske anomalien fortsetter over Bøkfjorden, og malmsonen finnes igjen på Skogerøya.

Bibliography:

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

Iversen, E. 1986: Jernmalmer i Sør-Varanger. Int. rapp. 1689. Prospektering A/S.

Iversen, E. 1991: Geologisk beskrivelse av kartblad 2434 II Kirkenes og deler av kartblad 2434 III Høybuktmoen. Int. rapp. 2072. Prospektering A/S.

Fieldsamples

Sample No. Sample type Miscellanrous

FI0269.01 Bedrock

Sampler: Wilberg/...Stored: Løkken

Comment: Medium grained, quartz banded mt min. with traces of py.

No. of registrated element analyses = 1

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

Analyse Results

from

Deposit Area 5605 - 031 Jåvnejåkka

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#

FI0269.01 Bedrock 16 64 8 2 13 -.3 7.0

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

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

FI0269.01 3.0 1.0 -1.0 3 1.1 137 1.00 -2 2

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

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

FI0269.01 18 18 540 15.83 4.00 -5.00 10 3.0 5.00

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

Sample No. B*

FI0269.01 -3

	From - To	Activity	Comments
	1996 - 1996	Sampling	Company/Institution :NGU

Era:	Archean	Period:
Genesis:	Sedex	Form:	Layer
Main texture:	Banded	Min. distribution:	Semi-massive (20-50 % ore minerals)

	Province:	Troms-Finnmark Basement Province
	Geotec.unit:
	Tectonic complex:
	Igneous complex:

Relationship	Mineral	Amount
Gangue mineral	Quartz	Major mineral (>10%)
Gangue mineral	Amphibole	Major mineral (>10%)
Gangue mineral	Biotite	Subordinate mineral (1-10%)
Ore mineral	Magnetite	Major mineral (>10%)
Ore mineral	Pyrite	Accessory mineral (<1%)

Relationship	Rock	Origin
Wall rock	Amphibolite	Extrusive Original rock :Basalt
		Metamorphic facies :Amphibolite
Wall rock	Mica gneiss	Sedimentary Original rock :Greywacke
		Metamorphic facies :Amphibolite

Location:	Type:	Orientation(360 gr.):	Relation to min.:
Host rock	Foliation	Strike/Dip :5 / 20	Post-mineralisation ;...Effect :None
Host rock	Primary layering	Strike/Dip :5 / 20	Syn-mineralisation ;...Effect :Controls

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
FI0269.01	Bedrock	16	64	8	2	13	-.3	7.0

Sample No.	Pt#	Pd#	Rh#	As*	Cd*	Ba*	Mo*	Sb*	Bi*
FI0269.01	3.0	1.0	-1.0	3	1.1	137	1.00	-2	2

Sample No.	V*	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*	La*
FI0269.01	18	18	540	15.83	4.00	-5.00	10	3.0	5.00