Norsk versjon
	THE ORE DATABASE
	Occurence 5540 - 022 Skardalen
	(Object Id: 1103) (Last updated: 21.02.2005)

Operations

	From - To	Activity	Comments
	1900 - 1900	Pitting
	1953 - 1953	Geology	Company/Institution :NGU

Mineralization

	Era:	Paleozoic	Period:
	Genesis:	Hydrothermal breccia	Form:	Plate
	Main texture:	Breccia cement	Min. distribution:	Massive (>50 % ore minerals)

Main grain size:

Fine grained (< 1 mm)

Main alteration:

	Strike/Dip:	320 / 35	Direction:
			Plunge:

Stratigraphic classification of host rock

Era:

Paleozoic

Period:

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

Group:

Formation:

Mineralogy

	Relationship	Mineral	Amount
	Gangue mineral	Quartz	Major mineral (>10%)
	Gangue mineral	Biotite	Subordinate mineral (1-10%)
	Gangue mineral	Feldspar	Subordinate mineral (1-10%)
	Gangue mineral	Garnet	Subordinate mineral (1-10%)
	Ore mineral	Pyrrhotite	Major mineral (>10%)
	Ore mineral	Chalcopyrite	Major mineral (>10%)
	Ore mineral	Sphalerite	Subordinate mineral (1-10%)

Lithology:

	Relationship	Rock	Origin
	Host rock	Glimmerskifer	Sedimentary Original rock :Greywacke
			Metamorphic facies :Amphibolite

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Foliation	Strike/Dip :320 / 35	Post-mineralisation ;...Effect :None

Information(s) in free text format

Free text

Mineraliseringen ble første gang anmeldt i 1897. Skjerpingen foregikk i 1900. Mineraliseringen har utgående på begge sider av elva som kommer fra Bievlajavri i høyde 450 moh. Ved UTM 486540 7707240 er det flere små røsker på begge sider av elva. På nordsiden er mineraliseringen, som er konkordant med foliasjonen i omgivende skifre, 1 m mektig og består av magnetkis-kobberkis-breksjemalm (prøve 01 og 02, 02 er gjennomsnittsprøve). Kobberkisen opptrer som uregelmessige bånd og ansamlinger i magnetkisen, som dominerer. Sulfidene er breksjefylling mellom fragmenter av skifer, rundete kvartsboller og granater. Mineraliseringen tynner ut og forsvinner etter 30-40 m mot sør. Mot nord kan den følges til skjerp nr. 1 som er 5 m3 stort. Her ses 10-20 cm mektig massiv breksjemalm, vanligvis Cu-fattig (prøve 03), med lokale kobberkisrike ansamlinger (05). Over breksjemalmen er det 40-50 cm mektig glimmerskifer med disseminasjon av magnetkis og kobberkis (04). 20 m lenger nord krysser mineraliseringen (nå 5 cm mektig) ei lita elv og forsvinner under løsmasser.

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.

Bergmesteren

	Utdrag og beretninger om bergverksdriften 1898-1910 i Birtavarre gruver.

;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 597;5 pages

	Abstract:
	I 1898 undersøkte Lyngens Kobbergruber følgende kobbermalm forekomster: Sabetjok, Birtavarra Høifjeld, Moskogaisa og Monte Carlo. I 1899 ble det ordinær drift i Moskogaisafeltet. Arbeidsstokken var i 1900 på 225 mann.

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	TR0130.01	Bedrock	Sampler: Wilberg, R./...Stored: Løkken Comment: Fink., massiv po-cpy-sl-malm. No. of registrated element analyses = 1
	TR0130.02	Bedrock	Sampler: Wilberg, R./...Stored: Løkken Comment: Knakkprøver, gjennomsnitt over 1 m i massiv + diss. po + cpy-sl. No. of registrated element analyses = 1

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

Name of Locality: Skjerp 1

(Object Id: 1559 22,01,00)

Location

County:

Troms

Municipality:

Gáivuotna (5540)

Map 1:50000:

Manndalen (1633-1)

Map 1:250000:

Nordreisa

Coordinate system:

EU89-UTM Zone 34

East:

486435 m.

North:

7707101 m.

Longitude:

20.6533730

Latitude:

69.4726250

Show on map

Resource

	Resource Type:	Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn)	Resource Subtype:	Copper
			Element(s):	Cu Zn Kis

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:

Information(s) in free text format

Free text

Mineraliseringen tynner ut og forsvinner etter 30-40 m mot sør. Mot nord kan den følges til skjerp nr. 1 som er 5 m3 stort. Her ses 10-20 cm mektig massiv breksjemalm, vanligvis Cu-fattig (prøve 03), med lokale kobberkisrike ansamlinger (05).

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	TR0130.03	Bedrock	Sampler: Wilberg, R./...Stored: Løkken Comment: Fink., massiv po-cpy-sl-malm. No. of registrated element analyses = 1
	TR0130.04	Bedrock	Sampler: Wilberg, R./...Stored: Løkken Comment: Gl.sk. med po-cpy-sl-diss. No. of registrated element analyses = 1
	TR0130.05	Bedrock	Sampler: Wilberg, R./...Stored: Løkken Comment: Fink., massiv cpy-sl-po-malm. No. of registrated element analyses = 1

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

---

Analyse Results

from

Deposit Area 5540 - 022 Skardalen

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#
TR0130.01	Bedrock	64138	1592	12	183	87	8.9	234.0
TR0130.02	Bedrock	41865	1390	12	252	105	7.3	339.0
TR0130.03	Bedrock	1582	15132	34	411	134	2.3	118.0
TR0130.04	Bedrock	21414	2111	168	96	33	7.4	296.0
TR0130.05	Bedrock	99999	11818	22	244	71	39.6	112.0

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

Sample No.	Pt#	Pd#	Rh#	As*	Cd*	Ba*	Mo*	Sb*	Bi*
TR0130.01	-3.0	-3.0	-5.0	2	11.4	16	7.00	5	66
TR0130.02	-3.0	-3.0	-5.0	2	8.1	12	12.00	-2	49
TR0130.03	-3.0	-3.0	-5.0	54	38.6	18	59.00	-2	13
TR0130.04	-3.0	-3.0	-5.0	-2	5.6	15	6.00	-2	53
TR0130.05	-3.0	-3.0	-5.0	58	36.8	19	59.00	9	12

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

Sample No.	S%	V*	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*
TR0130.01	12.57	52	48	148	20.42	4.00	-5.00	-2	9.0
TR0130.02	15.34	40	42	180	21.41	4.00	-5.00	-2	3.0
TR0130.03	22.49	16	27	83	33.59	3.00	-5.00	3	2.0
TR0130.04	6.69	37	36	268	11.13	4.00	-5.00	-2	2.0
TR0130.05	21.04	20	30	102	25.12	3.00	-5.00	-2	2.0

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

Sample No.	La*	B*
TR0130.01	11.00	-3
TR0130.02	6.00	-3
TR0130.03	5.00	-3
TR0130.04	4.00	-3
TR0130.05	4.00	-3

---

The fact sheet was created on 04.05.2024

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

Copyright © 2024 Geological Survey of Norway