Faktarka for Forekomstområde 1833

					English version
	INDUSTRIMINERALDATABASEN
	Forekomstområde 1833 - 302
	(Sist oppdatert 26.mar.2019)

Navn på deposit area : Svanvatnet

(Objekt Id : 1833,302,00,00)

Lokalisering

Fylke :

Nordland (18)

Kommune :

Rana (1833)

Kart 1:50000:

Storforshei (2027-4)

Kart 1:250000:

Mo i Rana

Markeringspunkt:

Lengdegrad:

14.5843830

Breddegrad:

66.4003530

EU89-UTM Zone 33

(Coordinates NOT confirmed)

X-koord:

481432 m.

Y-koord:

7364597 m.

Materialtype

Hovedtype:

Andre industrimineraler

Subtype:

Kyanitt

Production

Activity:	Prospektering	Reserves:
Prod. method:		Production:
Prod. status:	Ikke satt i drift	Volume of dump:

Betydning

Offentlig: Not Assessed (reg. 18.02.2015)

Economical: Ikke vurdert

Mineralization

Era: Period:

Dating: Method:

Genesis: Regionalmetamorf Form: Lag

Main texture: Skifrig Min. distribution: Uregelmessig

Main grain size: Middelskornet (1-3 mm)

Strike/Dip: Direction:

Plunge:

Stratigraphic classification of host rock

Era: Period:

Province:

Geotec.unit:

Tectonic complex:

Igneous complex:

Group: Formation:

Mineralogy

Relationship Mineral Amount

Not defined Quartz

Not defined Opaque

Not defined Apatite

Not defined Biotite

Not defined Muscovite

Not defined Calcite

Not defined Kyanite Major mineral (>10%)

Structures

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

Unknown Primary layering Post-mineralisation

Opplysning(er) i fritekstformat

Fri tekst

B. L.: Ved befaring høsten -93. var det ikke mulig å finne denne registreringen. Lokaliteten er beskrevet av Jens A. W. Bugge i NGU-publikasjon nr.171 (1948). I. L.: Ligger like ved Storforshei. Er knyttet til sedimentene nær jernmalmene i Dunderland. Det er sannsynligvis en kyanitt - granat - glimmerskifer. Diskutert forekomsten med Ulrik Søvegjarto. Han kjenner ikke til kyanitt i denne enheten som er i Rana gruvers gruveområde. Kyanitt må i så fall være aksessorisk i forbindelse med kvartsutsvetninger. Konklusjon: Forekomsten har ikke noen økonomisk verdi ut fra det som er kjent.

Bibliography:

From NGU's Reference Archive:

Bugge, Jens A.W. , 1948

Rana gruber. Geologisk beskrivelse av jernmalmfeltene i Dunderlandsdalen.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.171;1-149 + f pages

Abstract:

(forkortet) The mining company A/S Rana Gruber has made extensive exploration of the iron ore deposits in Dunderlandsdalren under the leadership of mining engineer Worm Lund and. The field work comprises the following sections: Geodetic works and constructions of topographic maps. - Geology. - Exploration of the ore deposits by diamond drilling. - Exploration of the ground above the solid rocks (for foundation). The present paper gives and outline of the geology. Map 1 illustrates the main geological features of Rana. The sedimenatary rocks belong to the lower part of the sediments of the Caledonian mountain range. They are older than the fossil-bearing Sulitjelma-schists described by Th. Vogt, and are probably of lower Ordovician or Upper Cambrianage age. The most characterisitctic features in the western part of the area illustrate d in map 2 are the graeat folds in with axes striking E-W and dipping 10-20 W There are two anticlinededs seperated by syncline. The northern Bomfjell- anticline is superseded toward south by the Svanheim-syncline and this again by the Nevernes-Lasken anticline. Toward east the fold axes turn from E-W to NNE -SSW, while the pitch varies between NE and SW. The compression of the rocks is higher in the eastern parts than in the western ones.

Era:		Period:
Dating:		Method:
Genesis:	Regionalmetamorf	Form:	Lag
Main texture:	Skifrig	Min. distribution:	Uregelmessig

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

Relationship	Mineral	Amount
Not defined	Quartz
Not defined	Opaque
Not defined	Apatite
Not defined	Biotite
Not defined	Muscovite
Not defined	Calcite
Not defined	Kyanite	Major mineral (>10%)

	Location:	Type:	Orientation(360 gr.):	Relation to min.:
	Unknown	Primary layering		Post-mineralisation