Norsk versjon
	THE ORE DATABASE
	Deposit Area 1942 - 110
	(Last updated 07.mar.2000)

Importance

Public:

Not Assessed (reg. 18.02.2015)

Economical:

Not classified/evaluated

Operations

	From - To	Activity	Comments
	1953 - 1953	Geology	Company/Institution :NGU/Padget
	1995 - 1995	Sampling	Company/Institution :NGU-malmreg.

Mineralization

	Era:	Paleozoic	Period:
	Dating:		Method:
	Genesis:	Volcex	Form:	Layer
	Main texture:		Min. distribution:	Semi-massive (20-50 % ore minerals)

Main grain size:

Fine grained (< 1 mm)

Main alteration:

Chloritisation

	Strike/Dip:	145 / 20	Direction:
			Plunge:

Stratigraphic classification of host rock

Era:

Paleozoic

Period:

	Province:	Caledonides
	Geotec.unit:	Reisa Nappe Complex
	Tectonic complex:	Vaddasdekket
	Igneous complex:

Group:

Oksfjordgruppen

Formation:

Ankerlia metagråvakkeformasjonen

Mineralogy

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

Lithology:

	Relationship	Rock	Origin
	Wall rock	Glimmerskifer	Sedimentary Original rock :Greywacke
			Metamorphic facies :Amphibolite
	Wall rock	Kvartsitt	Sedimentary Original rock :Sandstone
			Metamorphic facies :Amphibolite

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Foliation	Strike/Dip :145 / 20	Post-mineralisation ;...Effect :Modifies

Information(s) in free text format

Free text

Mineraliseringen opptrer i samme stratigrafiske nivå som, og mellom, Ansagurra og Jærviluotta - i samme Ankerliametagråvakkeformasjon som mineraliseringene i Kåfjorddalen/Birtavarre. 440 m.o.h. i ei elvekløft, 10 m sør for elva, er det påsatt en stoll mot SV (50 m3 tipp). Åpningen er gjenrast, men iflg. Padget (i Vokes 1957) er den 25 m lang. Stollen har fått navn etter G. Thesen som ledet driften i Kåfjorddalen/Birtavarre og i Moskodalen. Stollen er utilgjengelig for inspeksjon, men fra tippen sees finkornet massiv magnetkis med noe kobberkis og mm-store kvartsøyne (prøve 01 og 02). Svovelkis opptrer aksessorisk på smale sprekker. Spor av magnetitt. Iflg. Padget er mineraliseringen 20-30 cm mektig, bestående hovedsaklig av disseminert kobberkis, med et 5 cm mektig bånd av leirmateriale i heng. Mineraliseringen kan følges bare ca. 20 m mot ØSØ i stupet. Hengbergart er granat-kloritt-amfibol-biotittskifer. Liggbergart er båndet kvartsitt og glimmerskifer.

Bibliography:

From NGU's Reference Archive:

Vokes, Frank M. , 1957

	The copper deposits of the Birtavarre district, Troms, Northern Norway. Kopperforekomster i Birtavarre-området Troms.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.199;1-239 + p pages

Abstract:

The report gives the results of a 4-year (1952-55) programme for the investigation of a former copper-mining area in the north of Norway, carried out by the Geological Survey of Norway (NGU). The stratigraphy and structure of the district have been discribed in a previous NGU publication (Padget 1955). The ore deposits occur in one particular division (Ankerlia Series) of the layered Caledonian schists which underlie the whole area (see Plates 1 and 2). No deposits have been found outside this division. The greatest concentration of deposits occurs in the centre area along the south limb of a major, open E-W anticline (Moskogaissa anticline). In the same area the normally NW-plunging linear structures of the schists show a marked swing to an E-W direction (Plate 2). It is suggested that this area of "structural anomaly" has been responsible for the concentration of the sulphides. However, all kinds of control have been relatively weak and nowhere have the orebodies reached significant size by modern standards. It appears that the ore-bearing solutions spread out over large areas along zones of minor shearing within the Ankerlia Series. These zones lie roughly concordant with the schistosity and bedding for the schists and manifest themselves at outcrop as bands of marked rusting which are easy to follow in the field.

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	TR0342.01	Dump	Sampler :Wilberg, R./...Stored :Løkken Comment :Fink. massiv po med noe cpy og kvartsøyne. No. of registrated element analyses = 1
	TR0342.02	Dump	Sampler :Wilberg, R./...Stored :Løkken Comment :Fink. massiv po med noe cpy og kvartsøyne. No. of registrated element analyses = 1

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

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Analyse Results

from

Deposit Area 1942 - 110 Thesenstollen

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#
TR0342.01	Dump	5617	823	49	227	118	1.0	8.0
TR0342.02	Dump	5476	602	46	189	96	.9	5.0

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Sample No.	Pt#	Pd#	Rh#	As*	Cd*	Ba*	Mo*	Sb*	Bi*
TR0342.01	-3.0	-3.0	-5.0	5	7.1	19	3.00	-2	11
TR0342.02	-3.0	-3.0	-5.0	-2	4.9	27	3.00	8	10

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Sample No.	S%	V*	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*
TR0342.01	27.30	13	5	38	41.67	5.00	-5.00	-2	1.0
TR0342.02	22.70	23	14	68	34.25	6.00	-5.00	-2	1.0

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Sample No.	La*	B*
TR0342.01	8.00	-3
TR0342.02	13.00	-3

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The fact sheet was created on 13.05.2024

Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no

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