Faktarka for <b>Registrering 5044

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	INDUSTRIMINERALDATABASEN
	Registrering 5044 - 303 Jengelfjell
	(Objekt Id: 15082) (Sist oppdatert: 26.02.2004)

Lokalisering

Fylke:

Trøndelag

Kommune:

Namsskogan (5044)

Kart 1:50000:

Majavatn (1925-3)

Kart 1:250000:

Mosjøen

Koordinatsystem:

EU89-UTM Zone 33

(Koordinatene IKKE bekreftet)

Øst:

434699 m.

Nord:

7219400 m.

Lengdegrad:

13.6103970

Breddegrad:

65.0917660

Kartvisning

Ressurs

Ressurstype:

Olivin

Ressursundertype:

Ultramafitt (uspes.)

Betydning

Råstoffbetydning:

Ikke vurdert (reg. 18.02.2015)

Mineralisering

Genese: Form:

Hovedtekstur: Min. fordeling:

Kornstørrelse:

Strøk/Fall: Retning:

Feltstupning:

Stratigrafisk klassifikasjon av vertsbergart

Æra: Periode:

Provins:

Geotek.enhet:

Tektonisk complex:

Intrusivt komplex:

Gruppe: Formasjon:

Litteraturfortegnelser:

Fra NGU's Referansearkiv.:

Foslie, S. , 1957

Namsvatnet med en del av Frøyningsfjell Geologisk kart. Berggrunnskart; Namsvatnet; 1:100 000; trykt i farger; NGU Publ.nr.196

;Norges geologiske undersøkelse;KART

Foslie, Steinar; Strand, Trygve , 1956

Namsvatnet med en del av Frøyningsfjell.

;Norges geologiske undersøkelse;KARTBESKRIVELSE; TIDSSKRIFTARTIKKEL;NGU; No.196;1-82 + fo sider

Abstrakt:

The rocks of the area can be divided into three sharply separated groups. These are in ascending tectonic order: 1. The Børgefjell Massif in the north-eastern part of the area. 2. A complex of low-grade metamorphic sediments and volcanics. 3. A complex of high-grade metamorphic schists and gneisses in the west part of the area. The Børgefjell Massif is built up of granitic gneisses, porphyroblast schists rich in albite-oligoclase and micaschists, with subordinate bands of quartzite. There is a sharp tectonic boundary with a structural conformity to the overlying rocks. The Børgefjell Massif is thus a basal gneiss massif in the sense of Olaf Holtedahl. Probably its rocks are of pre-Cambrian age. The granitic gneisses and schists are in alternating, rather flat-lying sheets. East of Store Namsvatnet a beautiful anticlinal structure appears.

Gustavson, Magne , 1973

Børgefjell. Beskrivelse til det berggrunnsgologiske gradteigskart J.19 - 1: 100 000

;Norges geologiske undersøkelse;KARTBESKRIVELSE; TIDSSKRIFTARTIKKEL;NGU; Skrifter; No.298 ; 8;43 + kart sider

Abstrakt:

Three main structural units are present: 1. The Precambrian (Svecofennokarelian) basement of the Børgefjell Window. ". Low grade (greenschist facies) Lower Paleozoic rocks belonging to the Seve-Køli Nappe Complex. 3. The higher grade (amphibolite facies) Helgeland Nappe, thrust on top of the low grade rocks. The bedrock lithologies within these units are briefly described. Metasediments, metavolcanics and intrusive igneous rocks are present in the Caledonian part of the sequence. Within the Precambrian, granite and granitic gneiss predominate but metasediments and rocks transitional between gneisses and the metasediments are common. The stratigraphical position of the Caledonian rocks is briefly discussed.

	Provins:
	Geotek.enhet:
	Tektonisk complex:
	Intrusivt komplex: