Faktarka for Forekomstområde 437

					English version
	MALMDATABASEN
	Forekomstområde 437 - 059
	(Sist oppdatert 21.sep.2007)

Navn på deposit area : Bjørkåsen

(Objekt Id : 0437,059,00,00)

Lokalisering

Fylke :

Hedmark (04)

Kommune :

Tynset (0437)

Kart 1:50000:

Kvikneskogen (1619-4)

Kart 1:250000:

Røros

Markeringspunkt:

Lengdegrad:

10.6051520

Breddegrad:

62.2756400

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-koord:

583306 m.

Y-koord:

6905920 m.

Materialtype

	Hovedtype:	Basemetaller (Cu,Zn,Pb,Fe sulfider,As,Sb,Bi,Sn)	Subtype:	Sink
			Element(s):	Kis Zn Cu Pb

Production

Activity:	Røsking	Reserves:
Prod. method:		Production:
Prod. status:		Volume of dump:	10 m3

Betydning

Offentlig: Little Importance (reg. 18.02.2015)

Economical: Lite viktig

Operations

From - To Activity Comments

Pitting Company/Institution :?

1998 - 1998 Sampling Company/Institution :NGU mineralressurser

Mineralization

Era: Paleozoic Period: Ordovician

Dating: Method:

Genesis: Vulkeks Form: Uregelmessig

Main texture: Foliert Min. distribution: Semi-massiv

Main grain size: Middelskornet (1-3 mm) Main alteration: Klorittisering

Strike/Dip: Direction:

Plunge:

Stratigraphic classification of host rock

Era: Paleozoic Period: Ordovician

Province: Caledonides

Geotec.unit: Trondheim Nappe Complex

Tectonic complex:

Igneous complex:

Group: Fundsjø Group Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Chlorite Major mineral (>10%)

Gangue mineral Talc Subordinate mineral (1-10%)

Gangue mineral Calcite Subordinate mineral (1-10%)

Gangue mineral Quartz Subordinate mineral (1-10%)

Ore mineral Sphalerite Major mineral (>10%)

Ore mineral Galena Subordinate mineral (1-10%)

Ore mineral Chalcopyrite Subordinate mineral (1-10%)

Ore mineral Pyrite Subordinate mineral (1-10%)

Ore mineral Pyrrhotite Subordinate mineral (1-10%)

Lithology:

Relationship Rock Origin

Wall rock Quartz keratophyre Extrusive
Original rock :Rhyodacite

Metamorphic facies :Greenschist

Structures

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

Wall rock Foliation Strike/Dip :203 / 67 Post-mineralisation ;...Effect :Controls

Wall rock Fold axis Dir./Plunge :246 / 77 Post-mineralisation ;...Effect :Modifies

Opplysning(er) i fritekstformat

Fri tekst

Skjerpet ligger i vestkanten av stort åpent myrområde, omtrent 700 m NV for Liveslsætra og i strøkretningen omtrent 400 m nord for Liveslsætra skjerp (HE0163). Skjerpet er en røskegrøft ca. 6 m lang i strøkretning, 2 m bred og inntil 70 cm dyp. Mineraliseringen består av slirer og bånd inntil 4-5 cm brede dominert av sinkblende med mindre mengder pyritt +/- magnetkis +/- blyglans og opptrer i lys grå talkholdig klorittskifer, dels med slirer og linser av kalsitt. Forøvrig opptrer ujevnt fordelte elongerte aggregater av kobberkis, dels også assosiert med sinkblende. Den minerlaiserte sonen er ca. 1 m mektig og er kraftig, uregelmessig foldet. I ligg opptrer mørk kloritt-sericittholdig skifer, mens i heng er det mørk grafittholdig keratofyr(?) Den mineraliserte sonen kan følges ca. 50 m nordover langs strøket og går over i svakt pyrittimpregnert kvarts-sericittskifer. Sidebergart er kvarts-keratofyr/rhyodacitt.

Fieldsamples

Sample No. Sample type Miscellanrous

HE0164.01 Dump

Sampler :T. Bjerkgård/...Stored :Løkken/...Size(kg) :3

Kommentar :Semimassive sphalerite with scattered mm-grains of pyrite in matrix of light yellow-grayish chlorite.

No. of registrated element analyses = 1

HE0164.02 Dump

Sampler :T. Bjerkgård/...Stored :Løkken/...Size(kg) :3

Kommentar :Grey talc-chlorite schist with 1-5 mm lenses and bands of sphalerite with pyrrhotite and galena.

No. of registrated element analyses = 1

HE0164.03 Dump

Sampler :T. Bjerkgård/...Stored :Løkken/...Size(kg) :3

Kommentar :Grey talc-chlorite schist with 1-5 mm lenses and bands of sphalerite with pyrrhotite and galena. Frequent aggregates of chalcopyrite.

No. of registrated element analyses = 1

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

Analyse Results

from

Forekomstområde 437 - 059 Bjørkåsen

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#

HE0164.01 Dump 12500 99999 24682 -1 2 197.1 146.0

HE0164.02 Dump 9307 99999 23897 -1 5 181.0 122.0

HE0164.03 Dump 22300 40151 6126 -1 7 57.1 67.0

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

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

HE0164.01 2.0 4.0 76 1912.0 28 185.00 115 35 2

HE0164.02 2.0 4.0 76 1475.5 41 93.00 113 129 2

HE0164.03 1.0 2.0 17 260.5 55 75.00 7 17 1

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

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

HE0164.01 -1 397 6.33 3.00 -8.00 -2 5.0 6.00 -3

HE0164.02 -1 375 4.60 4.00 -8.00 -2 10.0 8.00 5

HE0164.03 -1 147 3.45 4.00 -8.00 -2 7.0 8.00 -3

From - To	Activity	Comments
	Pitting	Company/Institution :?
1998 - 1998	Sampling	Company/Institution :NGU mineralressurser

Era:	Paleozoic	Period:	Ordovician
Dating:		Method:
Genesis:	Vulkeks	Form:	Uregelmessig
Main texture:	Foliert	Min. distribution:	Semi-massiv

	Province:	Caledonides
	Geotec.unit:	Trondheim Nappe Complex
	Tectonic complex:
	Igneous complex:

Relationship	Mineral	Amount
Gangue mineral	Chlorite	Major mineral (>10%)
Gangue mineral	Talc	Subordinate mineral (1-10%)
Gangue mineral	Calcite	Subordinate mineral (1-10%)
Gangue mineral	Quartz	Subordinate mineral (1-10%)
Ore mineral	Sphalerite	Major mineral (>10%)
Ore mineral	Galena	Subordinate mineral (1-10%)
Ore mineral	Chalcopyrite	Subordinate mineral (1-10%)
Ore mineral	Pyrite	Subordinate mineral (1-10%)
Ore mineral	Pyrrhotite	Subordinate mineral (1-10%)

Relationship	Rock	Origin
Wall rock	Quartz keratophyre	Extrusive Original rock :Rhyodacite
		Metamorphic facies :Greenschist

Location:	Type:	Orientation(360 gr.):	Relation to min.:
Wall rock	Foliation	Strike/Dip :203 / 67	Post-mineralisation ;...Effect :Controls
Wall rock	Fold axis	Dir./Plunge :246 / 77	Post-mineralisation ;...Effect :Modifies

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
HE0164.01	Dump	12500	99999	24682	-1	2	197.1	146.0
HE0164.02	Dump	9307	99999	23897	-1	5	181.0	122.0
HE0164.03	Dump	22300	40151	6126	-1	7	57.1	67.0

Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sb*	Bi*	V*
HE0164.01	2.0	4.0	76	1912.0	28	185.00	115	35	2
HE0164.02	2.0	4.0	76	1475.5	41	93.00	113	129	2
HE0164.03	1.0	2.0	17	260.5	55	75.00	7	17	1

Sample No.	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*	La*	B*
HE0164.01	-1	397	6.33	3.00	-8.00	-2	5.0	6.00	-3
HE0164.02	-1	375	4.60	4.00	-8.00	-2	10.0	8.00	5
HE0164.03	-1	147	3.45	4.00	-8.00	-2	7.0	8.00	-3