English version
	MALMDATABASEN
	Forekomstområde 1634 - 038
	(Sist oppdatert 01.jul.1998)

Betydning

Offentlig:

Not Assessed (reg. 18.02.2015)

Economical:

Ikke vurdert

Operations

	From - To	Activity	Comments
	1965 - 1965	Geophysics	Company/Institution :NGU
	1966 - 1966	Geophysics	Company/Institution :Folldal Verk A/S
	1997 - 1997	Sampling	Company/Institution :NGU-Malmreg.

Mineralization

	Era:		Period:
	Dating:		Method:
	Genesis:	Vulkeks	Form:
	Main texture:	Båndet	Min. distribution:	Disseminert

Main grain size:

Finkornet (<1 mm)

Main alteration:

Serisittisering

	Strike/Dip:	60 / 70	Direction:
			Plunge:

Stratigraphic classification of host rock

Era:

Period:

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

Group:

Støren

Formation:

Elgsjø

Mineralogy

	Relationship	Mineral	Amount
	Gangue mineral	Quartz	Major mineral (>10%)
	Gangue mineral	Sericite	Subordinate mineral (1-10%)
	Gangue mineral	Feldspar	Subordinate mineral (1-10%)
	Gangue mineral	Amphibole	Subordinate mineral (1-10%)
	Ore mineral	Pyrite	Major mineral (>10%)
	Ore mineral	Pyrrhotite	Subordinate mineral (1-10%)

Lithology:

	Relationship	Rock	Origin
	Host rock	Quartzite	Sedimentary Original rock :Exhalite
			Metamorphic facies :Greenschist
	Wall rock	Banded quartzite	Sedimentary Original rock :Exhalite
			Metamorphic facies :Greenschist
	Wall rock	Amphibole schist	Extrusive Original rock :Basalt
			Metamorphic facies :Greenschist

Structures

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Host rock	Foliation	Strike/Dip :60 / 70	Post-mineralisation ;...Effect :None

Opplysning(er) i fritekstformat

Beskrivelse

Hovedskjerpet: Lite skjerp (med merkebolt), nærmest uten tipp, 30 m sør for myr og 20 m vest for bekk. Mineraliseringen består av 40 cm mektig svovelkis-disseminert hvit kvartsitt (kvartskeratofyr?) med cm-mektige bånd av semimassiv svovelkis (prøve 01). Svovelkisen har kornstørrelse på 0.5-1 mm. Bånding, med rike og fattige bånd i cm-skala. Over og under mineraliseringen er det finkornig amfibolskifer med litt magnetkis-svovelkis-disseminasjon helt nær mineraliseringen. Få meter under den stratabundne mineraliseringen er det blottet båndet kvartsitt med glimmerlag. Skifrighet: 60/70. Det er avblottet litt 90 m mot SV. Her sees bare jernhatt. Skjerp 1: Lite skjerp (<1 m3 tipp) i omlag samme nivå. Bare rusten, lys glimmerskifer og lys kloritt-amfibol (uorienterte, store nåler)-glimmerskifer med svak magnetkis-svovelkis-disseminasjon.

Bibliography:

From NGU's Reference Archive:

Nilsen, Odd , 1978

	Caledonian sulphide deposits and minor iron-formations from the southern Trondheim region, Norway.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.340;35-85 + k pages

Abstract:

Within the southern and central parts of the Trondheim region of the Norwegian Caledonides a great number of small, stratabound cupriferous pyrite deposits are confined to mafic metavolcanics of the Gula, Støren and Fundsjø Groups of the Lower Palaeozoic succession. The deposits occuring within, or in close contact with the metavolcanics are characterized by their association with minor manganiferous oxide/silicate iron-formations - better known as "vasskis" ore type - within the metamorphic low-grade areas. The iron-fprmations of the metamorphic higher grade terrains on the other hand, which are extensively developed within the Gula Group, are mostly of a pyrrhotitic sulphide/silicate type and sulphurization processes are thought to have played an important role during the metamorphism. The pyrite deposits occurring adjacent to the metavolcanics bear no relationship to the iron-formations. They are embedded in pelitic, often carbonaceous assemblages (Gula Group) or within tuffitic members of the volcanogene Støren Group, and they are thought to represent re-sedimented (reworked) deposits. The pyrite deposits display varying degree of metamorphic reconstitution and a tectonic control has apparently determined their disc- or ruler-shaped morphology.

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	ST0362.01	Bedrock	Sampler :Wilberg/...Stored :Løkken Kommentar :Kvartskeratofyr med semimassiv py-bånd. No. of registrated element analyses = 1

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

Navn på locality :

(Objekt Id : 1634,038,01,00)

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Lokalisering

Fylke :

Sør-Trøndelag (16)

Kommune :

Oppdal (1634)

Kart 1:50000:

Einunna (1519-1)

Kart 1:250000:

Røros

Markeringspunkt:

Lengdegrad:

9.8033600

Breddegrad:

62.3316910

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-koord:

541618 m.

Y-koord:

6911390 m.

Materialtype

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

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Analyse Results

from

Forekomstområde 1634 - 038 Steindalkollen

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#
ST0362.01	Bedrock	64	22	4	33	28	-.3	2.0

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Sample No.	Pt#	Pd#	As*	Cd*	Ba*	Mo*	Sb*	Bi*	S%
ST0362.01	3.0	1.0	84	-.2	-1	6.00	-3	20	17.90

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Sample No.	V*	Cr*	Mn*	Fe%	Th*	U*	W*	Sr*	La*
ST0362.01	38	10	177	18.45	4.00	-8.00	-2	15.0	2.00

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Sample No.	B*
ST0362.01	10

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Faktaarket ble generert 13.06.2026

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

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