English version
	MALMDATABASEN
	Forekomstområde 1920 - 008
	(Sist oppdatert 18.feb.2005)

Betydning

Offentlig:

Little Importance (reg. 18.02.2015)

Economical:

Lite viktig , (Confirmed 18.feb.2005 by Peter Ihlen)

Mineralization

	Era:		Period:
	Dating:		Method:
	Genesis:	Hydrotermal gang	Form:	Plate
	Main texture:	Sprekkefylling	Min. distribution:	Uregelmessig

Main grain size:

Grovkornet (>3 mm)

Main alteration:

	Strike/Dip:	290 / 25	Direction:
			Plunge:

Stratigraphic classification of host rock

Era:

Period:

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

Group:

Formation:

Mineralogy

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

Lithology:

	Relationship	Rock	Origin
	Host rock	kalkspatmarmor	Sedimentary Original rock :Limestone

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Joints/Fractures	Strike/Dip :290 / 25	Pre-mineralisation ;...Effect :Controls
	Host rock	Fold axis	Strike/Dip :315 / 10	Pre-mineralisation ;...Effect :None

Opplysning(er) i fritekstformat

Fri tekst

Mineraliseringen er en mindre analog til Kveldskardet vel 4 km mot nord, og opptrer i samme stratigrafiske nivå hvor hydrotermalkvartsganger har trengt inn i ett eller flere nivå av marmoren. Ved UTM 379740 7624670 (740 m.o.h.) er det i en steil fjellvegg, over en mektighet på ca. 3 m, dels rette regelmessige, og dels uregelmessige linseformige kvartsganger. Største mektighet av en enkelt gang er 1 m. Gangene er blottet over ca. 20 m lengde. Kvartsgangenes sidestein er foldet, finkornet kalkspatmarmor. Gangretningen er 290/25, og de skjærer diskordant gjennom den foldete marmoren. Over og under den ca. 20 m mektige marmoren er det glimmerskifer. Kvartsgangene fører lite sulfider, men lokalt opptrer opptil 5x10 cm2 linser/ansamlinger av magnetkis, kobberkis, sinkblende og blyglans (prøve 02). Ved UTM 380350 7624170 (610 m.o.h.) er det en 2-3 m mektig kvartsgang (av ukjent lengde) med magnetkis-kobberkis-disseminasjon (01).

Bibliography:

From NGU's Reference Archive:

Lund, Per Ragnar , 1965

	En geologisk undersøkelse på den sørøstre del av kartbladet Salangen.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.234;74-102 pages

Abstract:

Petrographic and structural investigations were made in a Cambro-Ordovician area of the Caledonides of Northern Norway, situated in Salangen, Troms. The rocks, mainly mica schists rich in biotite and/or muscovite, are mostly folded and the schistosity is very distinct. This group of rocks also comprises light gneisses rich in microcline; probably they represent metamorphic sediments. In the upper parts of the sequence are found some amphibolites and layers with large hornblende crystals in the mica schist. Crystalline limestones occur in the lower parts, the zones are always less than 20-30 meters in thickness. Precambrian granite represent windows at the bottom of the Salangen valley. A Caledonian granite is intruded in the schists near Lavangen. Analysis, norm and mode of the last mentioned granite are given. The mineral assemblies suggest that the rocks are in the lower part of the almandine-amphibolite facies. Albite is the common feldspar in the rocks and the biotite isograd as well as the garnet isograd are exceeded in the area. The described rocks lies in the continuation of the Håfjell synclinorium in Ofoten. A north-north-east direction of the strike combined with dip to the west certifies this. Folding on almost horizontal axes trending along the main Caledonian direction is combined with north-east cross-folds.

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	TR0479.02	Bedrock	Sampler :Wilberg/...Stored :Løkken Kommentar :Massiv po, cpy, ga i hydrotermal kvarts.

Navn på sample point : Prøvepunkt 1

(Objekt Id : 1920,008,00,01)

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Lokalisering

Fylke :

Troms (19)

Kommune :

Lavangen (1920)

Kart 1:50000:

Bonnes (1432-2)

Kart 1:250000:

Narvik

Markeringspunkt:

Lengdegrad:

18.0459720

Breddegrad:

68.7016590

EU89-UTM Zone 33

(Coordinates IS confirmed)

X-koord:

623427 m.

Y-koord:

7624154 m.

Materialtype

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

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	TR0479.01	Bedrock	Sampler :Wilberg, R./...Stored :Løkken Kommentar :Hydrot. kvarts med po-cpy-diss. 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

Forekomstområde 1920 - 008 Trosen

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#
TR0479.01	Bedrock	103	6	7	55	97	-1.0	1.0

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Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*
TR0479.01	3.0	3.0	-20	-1.0	9	-1.00	-20	-20	-20

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Sample No.	S%	V*	Cr*	Mn*	Fe%	Th*	U*	Sr*	La*
TR0479.01	2.26	10	-1	7	4.32	-30.00	-30.00	3.4	-1.00

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Sample No.	B*
TR0479.01	-5

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Faktaarket ble generert 19.06.2026

Spørsmål eller kommentarer vedrørende faktaarket kan mailes til: ressursdatabaser@ngu.no

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