Faktarka for Forekomstområde 1841

					English version
	INDUSTRIMINERALDATABASEN
	Forekomstområde 1841 - 313
	(Sist oppdatert 24.feb.2004)

Navn på deposit area : Hammaren

(Objekt Id : 1841,313,00,00)

Lokalisering

Fylke :

Nordland (18)

Kommune :

Fauske (1841)

Kart 1:50000:

Låmivatnet (2229-3)

Kart 1:250000:

Sulitjelma

Markeringspunkt:

Lengdegrad:

16.3993670

Breddegrad:

67.2039740

EU89-UTM Zone 33

(Coordinates NOT confirmed)

X-koord:

560499 m.

Y-koord:

7454799 m.

Materialtype

Hovedtype:

Olivin

Subtype:

Ultramafitt (uspes.)

Betydning

Offentlig: Not Assessed (reg. 18.02.2015)

Economical: Ikke vurdert

Mineralization

Era: Period:

Dating: Method:

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Stratigraphic classification of host rock

Era: Period:

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Bibliography:

From NGU's Reference Archive:

Cooper, M.A.; Bliss, G.M.; Halls, C.; Ferriday, I.L. , 1979

The geology of the Sorjusdalen area, Nordland, Norway.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.351;31-50 pages

Abstract:

The rocks of the Sorjusdalen area are divided into two distinct tectono-stratigraphic sequences, the lower termed the Pieske/Vasten Nappe and the upper the Gasak Nappe. The mutual contact of the nappes is imbricate in character and is marked by several distinctive lithologies and tectonic features. The Sulitjelma Gabbro was intruded across this contact resulting in intrusive relationships with both tectono-stratigraphic sequences. There are three phases of folding in the area, but only F1 and F2 have any significant effect on the distribution of lithologies. F1, a phase of NE-SW trending isoclinal folds with an axial planar schistose foliation, is associated with nappe emplacement. The open, E-W trending F2 folds deform the F1 fabric and appear to be on the southern limb of a major F2 synform. Medium-pressure regional metamorphism reached its peak during F1, producing a pattern of inverted isograds; the easternmost structurally lower units are greenschist facies and the westernmost structurally highest units are middle amphibolite facies. The Sulitjelma Gabbro has a thermal aureole and yet is locally profoundly affected by regional metamorphism, indicating pre- to syn-metamorphic intrusion. The emplacement of the Gasak Nappe during F1, was likewise syn-metamorphic and just prior to the intrusion of the gabbro.

Kollung, S. , 1986

Låmivatnet. Berggrunnskart; Låmivatnet; 22293; 1:50 000; sort/hvitt;

;Norges geologiske undersøkelse;KART

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