Fact Sheet for <b>Occurence 0

					Norsk versjon
	THE ???? DATABASE
	Occurence 0 - 000 FEIL
	(Object Id: ) (Last updated: 24.02.2004)

Location

County:

Municipality:

Mangler ()

Map 1:50000:

Seiland (1835-1)

Map 1:250000:

Hammerfest

Coordinate system:

UTM-Zone 33 - EUREF89/WGS84

(Coordinates NOT confirmed)

East:

576000 m.

North:

7818000 m.

Longitude:

23.0356070

Latitude:

70.4541360

Show on map

Resource

Resource Type:

Olivine

Resource Subtype:

Ultramafic (unspec.)

Importance

Raw material meaning:

Not Assessed (reg. 18.02.2015)

Mineralization

Genesis: Form:

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:

Bibliography:

From NGU's Reference Archive:

Sturt, Brian A.; Speedyman, D.L.; Griffin, W.L. , 1980

The Nordre Bumandsfjord Ultramafic Pluton, Seiland, North Norway. Part I: Field relations.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.358;1 - 30 pages

Abstract:

The Nordre Bumandsfjord pluton consists of dunite, wehrlite and lherzolite. These rocks were intruded as magmas late in the Finnmarkian phase of the Caledonian orogeny. Field relations nad geochemistry show that the dominant primary magma was dunitic with ca. 40 wt % MgO; other ultramafic magma(s) was a final stage in the evolution of the very active mantle diapir responsible for the large volume of basic rocks comprising the Seiland Igneous Province.

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.

	Genesis:		Form:
	Main texture:		Min. distribution:

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