Fact Sheet for <b>Occurence 5052

					Norsk versjon
	THE ORE DATABASE
	Occurence 5052 - 008 Rossvika
	(Object Id: 189) (Last updated: 15.12.1998)

Location

County:

Trøndelag

Municipality:

Leka (5052)

Map 1:50000:

Austra (1725-2)

Map 1:250000:

Vega

Coordinate system:

EU89-UTM Zone 32

East:

631960 m.

North:

7219362 m.

Longitude:

11.8065700

Latitude:

65.0715660

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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:	Exploration	Reserves:
	Operating method:		Historical production:

Mineralization

Era: Proterozoic Period:

Genesis: Orthomagmatic formation Form: Lens

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

Main grain size: Medium grained (1-3 mm) Main alteration:

Strike/Dip: 250 / 80 Direction:

Plunge:

Stratigraphic classification of host rock

Era: Proterozoic Period:

Province:

Geotec.unit:

Tectonic complex:

Igneous complex:

Group: Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Plagioclase Major mineral (>10%)

Gangue mineral Potassic feldspar Major mineral (>10%)

Gangue mineral Biotite Major mineral (>10%)

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Amphibole Subordinate mineral (1-10%)

Ore mineral Pyrite Major mineral (>10%)

Ore mineral Pyrrhotite Subordinate mineral (1-10%)

Ore mineral Sphalerite Accessory mineral (<1%)

Ore mineral Chalcopyrite Accessory mineral (<1%)

Lithology:

Relationship Rock Origin

Host rock Granodioritic gneiss Intrusive
Original rock :Granodiorite

Metamorphic facies :Amphibolite

Structures

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

Host rock Foliation Strike/Dip :250 / 80 Post-mineralisation ;...Effect :None

Information(s) in free text format

Free text

Det er ikke skjerpet på mineraliseringen. Den skjæres av veien og er blottet i ca 15 m lengde. Bergarten i området er middels- til grovkornet granodiorittisk gneis, delvis migmatittisk, med slirer og bånd. Mineraliseringen er opptil 0.5 m mektig og opptrer stratabundet i forhold til gneisens bånding og foliasjon. Sulfidene (ca. 5 % svovelkis, noe magnetkis og spor av kobberkis og sinkblende) opptrer som disseminasjon og i smale striper i gneis som skiller seg ut fra heng og ligg ved lavere hornblende-innhold (granittisk sammensetning, prøve 02). Deler av mineraliseringen fører cm-store feltspatslirer (01).

Fieldsamples

Sample No. Sample type Miscellanrous

NT0191.01 Bedrock

Sampler: Wilberg, R.

Comment: Medium grained, granitic gneiss with sulphide dissemination.

No. of registrated element analyses = 1

NT0191.02 Bedrock

Sampler: Wilberg, R.

Comment: Medium grained, granitic gneiss with sulphide dissemination.

No. of registrated element analyses = 1

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

Analyse Results

from

Deposit Area 5052 - 008 Rossvika

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#

NT0191.01 Bedrock 111 71 6 14 12 .5 12.0

NT0191.02 Bedrock 74 66 12 14 15 1.1 20.0

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

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

NT0191.01 3.0 2.0 2 .6 92 65.00 2 6 .87

NT0191.02 1.0 1.0 7 .4 40 35.00 2 25 2.14

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

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

NT0191.01 44 20 327 2.87 17.00 5.00 1 10.0 21.00

NT0191.02 44 38 251 3.70 8.00 5.00 1 15.0 14.00

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

Sample No. B*

NT0191.01 4

NT0191.02 6

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

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

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

Relationship	Rock	Origin
Host rock	Granodioritic gneiss	Intrusive Original rock :Granodiorite
		Metamorphic facies :Amphibolite

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Foliation	Strike/Dip :250 / 80	Post-mineralisation ;...Effect :None

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
NT0191.01	Bedrock	111	71	6	14	12	.5	12.0
NT0191.02	Bedrock	74	66	12	14	15	1.1	20.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sb*	Bi*	S%
NT0191.01	3.0	2.0	2	.6	92	65.00	2	6	.87
NT0191.02	1.0	1.0	7	.4	40	35.00	2	25	2.14

Sample No.	V*	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*	La*
NT0191.01	44	20	327	2.87	17.00	5.00	1	10.0	21.00
NT0191.02	44	38	251	3.70	8.00	5.00	1	15.0	14.00