Fact Sheet for <b>Occurence 0

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	THE ???? DATABASE
	Occurence 0 - 000 FEIL
	(Object Id: ) (Last updated: 03.02.2004)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Stjernøya (1835-4)

Map 1:250000:

Hammerfest

Coordinate system:

UTM-Zone 33 - EUREF89/WGS84

East:

564000 m.

North:

7796300 m.

Longitude:

22.6981710

Latitude:

70.2629690

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Resource

Resource Type:

Olivine

Resource Subtype:

Olivine

Importance

Raw material meaning:

Not Assessed (reg. 18.02.2015)

Mineralization

Era: Paleozoic Period:

Genesis: Liquid magmatic Form: Irregular

Main texture: Min. distribution:

Main grain size:

Strike/Dip: Direction:

Plunge:

Stratigraphic classification of host rock

Era: Period:

Province:

Geotec.unit:

Tectonic complex:

Igneous complex:

Group: Formation:

Mineralogy

Mineral Amount

Olivine Major mineral (>10%)

Information(s) in free text format

Free text

Olivinforekomst 3km øst for Lillebukt, vurdert av Elkem (Christiania Spigerverk) på 60-tallet. Ligger for bratt og utsatt til.

Bibliography:

From NGU's Reference Archive:

Oosterom, M.G. , 1963

The ultramafites and layered gabbro sequences in the granulite facies rocks on Stjernøy.

;AVHANDLING;296 s. pages

Abstract:

På Stjernøy, Seiland og på fastlandet ved Øksfjord og Bergsfjord finne peridotitt, pyroksenitt og lagdelt gabbro innenfor et kompleks av høymetamorfte gabbro gneisser. Den lagdelte gabbro er i alminnelighet konkordant med parallellstrukturen i de omliggende gneiser, men viser lokalt uregelmessigheter (se kart i lommen bak i boken). Også hornblenditt, karbonatitt og nefelinsyenitt forekommer, de er sannsynligvis dannet ved metasomatiske prosesser. (Forkortet)

Bennett, M.C.; Emblin, S.R.; Robins, B.; Yeo, W.J.A. , 1986

High-temperature ultramafic complexes in the North Norwegian Caledonides: I - Regional setting and field relationships.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU Bulletin; No.405;1-40 pages

Abstract:

Forkortet. Four major (25-100 km²) ultramafic complexes were developed in the Sørøy Nappe during the second phase of Finnmarkian deformation in the North Norwegian Caledonides. They were emplaced into layered mafic intrusions and show broadly similar emplacement histories and petrographic variations suggesting a related petrogenesis. The Nordre Bumannsfjord, Melkvann and Kvafjord group of ultramafic complexes developed in part by emplacement of both replacive and dilational ne-normative ultramafic sheets and dykes which progressively fragmented the layered olivine gabbro envelope. The Reinfjord ultramafic complex contains pronounced, subhorizontal modal layering and evidence of at least 3 major magmatic events. The intrusive sequences and petrographic variations represented in the complexes suggest the succesive emplacement of mantle-derived magmas with a diminishing number of liquidus phases, accompanied by in situ liquid-crystal fractionation, subsidiary hybridization and metasomatism.

References not to be found in NGU's Reference Archive.:

Geis, H.P. 1968b: Olivinforekomst ved Davaluft på Stjernøy. Christiania Spigerverk(Elkem)-notat, 2 s.

Era:	Paleozoic	Period:
Genesis:	Liquid magmatic	Form:	Irregular
Main texture:		Min. distribution:

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