Faktarka for <b>Registrering 5043 - 303 Rokkeklumpen</b>

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	INDUSTRIMINERALDATABASEN
	Registrering 5043 - 303 Rokkeklumpen
	(Objekt Id: 15083) (Sist oppdatert: 26.02.2004)

Lokalisering

Fylke:

Trøndelag

Kommune:

Raarvihke (5043)

Kart 1:50000:

Jomafjellet (1924-1)

Kart 1:250000:

Grong

Koordinatsystem:

EU89-UTM Zone 33

(Koordinatene IKKE bekreftet)

Øst:

442100 m.

Nord:

7207949 m.

Lengdegrad:

13.7725570

Breddegrad:

64.9904290

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.:

Oxaal, John , 1910

IV. Fjeldbygningen i den sydlige del av Børgefjeld og trakterne om Namsvandene

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.53;26 sider

Abstrakt:

Forkortet: The region described is situated in the northern part of the Northern Trondheim region. The most dominent eruptive masses within this region are three great granite areas, of which one is situated to the West and one to the East of Nam- dalen. The third granite area, in store Børgefjell and southward to Namsvatnet. is the oldest. The granite is injected between the strata of mica schists; the eruption has been taken place before the beginning of the folding and the rocks have been metamorphosed in part very thoroughly. The margin of the granite mass has been transformed into granite, schists, the more central parts show much less effects of pressure and appear now as a porphyritic gneiss. The author found at several places a gradual transition from the granite schists to the porphyritic gneiss. A series of microphotographs of sections taken from a transition series is reprodused on the appended sheet.

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.

Fossen, H.; Kollung, S. , 1988

Jomafjellet. Berggrunnskart; Jomafjellet; 19241; 1:50 000; sort/hvitt;

;Norges geologiske undersøkelse;KART

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