Fact Sheet for <b>Occurence 5043 - 029 Bjørkvatnet</b>

					Norsk versjon
	THE ORE DATABASE
	Occurence 5043 - 029 Bjørkvatnet
	(Object Id: 267) (Last updated: 16.05.2006)

Location

County:

Trøndelag

Municipality:

Raarvihke (5043)

Map 1:50000:

Røyrvik (1924-4)

Map 1:250000:

Grong

Coordinate system:

EU89-UTM Zone 33

East:

420572 m.

North:

7194059 m.

Longitude:

13.3241850

Latitude:

64.8613940

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:

Little Importance (reg. 18.02.2015)

Resources and production

	Activity:	Exploration	Reserves:
	Operating method:		Historical production:

Operations

From - To Activity Comments

1991 - 1991 Sampling Company/Institution :NGU

1996 - 1996 Inspection Company/Institution :NGU

Mineralization

Era: Paleozoic Period: Ordovician

Genesis: Volcex Form: Layer

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

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

Strike/Dip: 250 / 40 Direction:

Plunge:

Stratigraphic classification of host rock

Era: Paleozoic Period: Ordovician

Province: Caledonides

Geotec.unit: Køli Nappe Complex

Tectonic complex: Gjersvik Nappe

Igneous complex: Skorovass Complex

Group: Gjersvik Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Ore mineral Pyrite Major mineral (>10%)

Lithology:

Relationship Rock Origin

Wall rock Felsisk agglomerat Extrusive
Original rock :Agglomerate

Metamorphic facies :Greenschist

Wall rock Grønnstein Extrusive
Original rock :Basalt

Metamorphic facies :Greenschist

Structures

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

Wall rock Foliation Strike/Dip :286 / 20 Post-mineralisation ;...Effect :Modifies

Information(s) in free text format

Free text

Forekomsten ligger i en ny veiskjæring langs Steinfjellvegen, rett nord for Bjørkvatnet. Den består av en 1.2-1.5 m mektig vasskishorisont. Sur vulkanitt i heng og mørk grønnstein med svovelkis-impregnasjon i ligg. Stratigrafisk kan den ligge på samme nivå som Gammelannlia-forekomstene. Prøvetatt av Grong Gruber med dårlig resultat (< 0.06 % Cu).

Fieldsamples

Sample No. Sample type Miscellanrous

HK90-205 Bedrock

Sampler: Karlstrøm, H.

Comment: Massiv, fink. py-min. med tynne bånd av rekryst. py og mt.

No. of registrated element analyses = 1

HK90-206 Bedrock

Sampler: Karlstrøm, H.

Comment: Q.-rike bånd med py-impr. i veksling med middelsk. py i sterkt klorittisert grønnskifer. Hengsonen.

No. of registrated element analyses = 1

HK90-207S Bedrock

Sampler: Karlstrøm, H.

Comment: Samleprøve.

No. of registrated element analyses = 1

LS91094 Bedrock

Sampler: Størseth, L.R.

Comment: Vasskis.

No. of registrated element analyses = 1

LS91095 Bedrock

Sampler: Størseth, L.R.

Comment: Grovere py-mt-malm.

No. of registrated element analyses = 1

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

Analyse Results

from

Deposit Area 5043 - 029 Bjørkvatnet

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#

HK90-205 Bedrock 72 209 10 3 13 .8 77.0

HK90-206 Bedrock 135 281 4 11 50 .5 17.0

HK90-207S Bedrock 91 164 4 11 33 .6 56.0

LS91094 Bedrock 43 179 2 16 24 .4 42.0

LS91095 Bedrock 606 144 5 26 70 1.0 76.0

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

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

HK90-205 3.0 5.0 59 1.9 6 1.00 7 3 27.51

HK90-206 5.0 5.0 53 .9 2 10.00 2 2 15.52

HK90-207S 7.0 5.0 66 1.2 3 3.00 2 3 26.82

LS91094 3.0 3.0 9 .2 6 3.00 2 2 37.10

LS91095 8.0 13.0 70 .2 5 10.00 2 2 24.60

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

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

HK90-205 9 4 47 20.01 3.00 5.00 1 1.0 2.00

HK90-206 121 22 423 18.71 3.00 5.00 1 4.0 6.00

HK90-207S 78 12 262 26.58 4.00 5.00 1 2.0 4.00

LS91094 21 12 196 20.45 1.00 5.00 1 1.0 2.00

LS91095 122 16 309 27.00 2.00 5.00 1 2.0 3.00

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

Sample No. B*

HK90-205 2

HK90-206 2

HK90-207S 2

LS91094 3

LS91095 2

From - To	Activity	Comments
1991 - 1991	Sampling	Company/Institution :NGU
1996 - 1996	Inspection	Company/Institution :NGU

Era:	Paleozoic	Period:	Ordovician
Genesis:	Volcex	Form:	Layer
Main texture:	Banded	Min. distribution:	Massive (>50 % ore minerals)

	Province:	Caledonides
	Geotec.unit:	Køli Nappe Complex
	Tectonic complex:	Gjersvik Nappe
	Igneous complex:	Skorovass Complex

Relationship	Mineral	Amount
Gangue mineral	Quartz	Major mineral (>10%)
Ore mineral	Pyrite	Major mineral (>10%)

Relationship	Rock	Origin
Wall rock	Felsisk agglomerat	Extrusive Original rock :Agglomerate
		Metamorphic facies :Greenschist
Wall rock	Grønnstein	Extrusive Original rock :Basalt
		Metamorphic facies :Greenschist

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Wall rock	Foliation	Strike/Dip :286 / 20	Post-mineralisation ;...Effect :Modifies

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
HK90-205	Bedrock	72	209	10	3	13	.8	77.0
HK90-206	Bedrock	135	281	4	11	50	.5	17.0
HK90-207S	Bedrock	91	164	4	11	33	.6	56.0
LS91094	Bedrock	43	179	2	16	24	.4	42.0
LS91095	Bedrock	606	144	5	26	70	1.0	76.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sb*	Bi*	S%
HK90-205	3.0	5.0	59	1.9	6	1.00	7	3	27.51
HK90-206	5.0	5.0	53	.9	2	10.00	2	2	15.52
HK90-207S	7.0	5.0	66	1.2	3	3.00	2	3	26.82
LS91094	3.0	3.0	9	.2	6	3.00	2	2	37.10
LS91095	8.0	13.0	70	.2	5	10.00	2	2	24.60

Sample No.	V*	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*	La*
HK90-205	9	4	47	20.01	3.00	5.00	1	1.0	2.00
HK90-206	121	22	423	18.71	3.00	5.00	1	4.0	6.00
HK90-207S	78	12	262	26.58	4.00	5.00	1	2.0	4.00
LS91094	21	12	196	20.45	1.00	5.00	1	1.0	2.00
LS91095	122	16	309	27.00	2.00	5.00	1	2.0	3.00