English version
	MALMDATABASEN
	Registrering 5610 - 017 Bavtajohka
	(Objekt Id: 752) (Sist oppdatert: 07.02.2007)

Mineralisering

	Æra:	Kenozoikum	Periode:	Kvartær
	Genese:	Sedimentær avsetning	Form:	Uregelmessig
	Hovedtekstur:	Poreromsfylling	Min. fordeling:	Uregelmessig

Kornstørrelse:

Meget ujevnkornet

Hovedomvandling:

	Strøk/Fall:		Retning:
			Feltstupning:

Stratigrafisk klassifikasjon av vertsbergart

Æra:

Kenozoikum

Periode:

Kvartær

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

Gruppe:

Formasjon:

Mineralogi

	Relasjon	Mineral	Mengde
	Malmmineral	Gull	Hovedmineral (>10%)

Opplysning(er) i fritekstformat

Sammendrag

The river terraces along Bavtajohka river have been the sites for several attempts to exploit gold by panning and use of sluices (Bjørlykke, 1966). The terrace surface that is situated 5-6 m over the present water level in Bavtajohka river, has been worked for a distance of 100 m along the western side of the river about 1 km above the confluence with Karasjohka river. The terrace consists of an upper 1,2-1,5 m thick unit of sand and gravel with large boulders, overlying clay-rich blocky till. Gold is mainly concentrated along the interface between reworked and untisturbed till.

Litteraturfortegnelser:

Fra NGU's Referansearkiv.:

Bjørlykke, Harald , 1966

	De alluviale gullforekomster i indre Finnmark.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.236;1-66 sider

Abstrakt:

The first find of alluvial gold in Finnmarken was made by inspector (bergmester) Tellef Dahll in 1866 in sand from a small river named Nitusjokka near Karasjok. During the following 5 years gold deposits were found in all the rivers of the Tana river systm and the Alta and Reisa rivers. Gold has been found in small amount in all kinds of sand- and gravel deposits and also in the unwashed moraine deposits. The gold fields which have been subject to production or prospection work are situated at the upper parts of the rivers. The occurrences of alluvial gold in Finnmark may be classified in The following way: 1. Preglacial accumulations undisturbed by ice erosion during the ice age. 2: Preglacial accumulations disturbed and redeposited in moraines and fluvioglacial deposits. 3. Accumulations in postglacial river beds. The gold in these deposits seems chiefly to have been washed out from the moraines. Mineralogical analyses of the mineral composition of the gold-bearing sand and gravel have been carried out. The minerals of the gold-bearing deposits may be divided in two groups: 1. Minerals belonging to the surrounding solid rock. 2. Minerals which do not seem to belong to the solid rock in the neighbourhood of the deposits.

Navn på lokalitet: Gæs'sajohka

(Objekt Id: 15928 17,01,00)

Lokalisering

Fylke:

Finnmark

Kommune:

Kárášjohka (5610)

Kart 1:50000:

Bæivasgiedde (2033-3)

Kart 1:250000:

Karasjok

Koordinatsystem:

EU89-UTM Zone 35

(Koordinatene IKKE bekreftet)

Øst:

412677 m.

Nord:

7675586 m.

Lengdegrad:

24.7985860

Breddegrad:

69.1762770

Kartvisning

Ressurs

	Ressurstype:	Edelmetaller (Au, Ag, PGE)	Ressursundertype:	Gull
			Element(er):	Au

Ressurser og produksjon

	Aktivitet:	Røsking	Reserver:
	Driftsmetode:		Historisk produksjon:

Mineralogi

	Relasjon	Mineral	Mengde
	Malmmineral	Gull	Hovedmineral (>10%)

Opplysning(er) i fritekstformat

Sammendrag

Immediately south of the confluence with Gæs'sajohka river occur some old pits worked in the terrace 7-8 m above the present water level. As in the main Bavtajohka gold camp the gold probably occurs at the interface between indisturbed and reworked till. No attempts have been made to pan gold in the Gæssejohka river (Bjørlykke 1966).

Litteraturfortegnelser:

Fra NGU's Referansearkiv.:

Bjørlykke, Harald , 1966

	De alluviale gullforekomster i indre Finnmark.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.236;1-66 sider

Abstrakt:

The first find of alluvial gold in Finnmarken was made by inspector (bergmester) Tellef Dahll in 1866 in sand from a small river named Nitusjokka near Karasjok. During the following 5 years gold deposits were found in all the rivers of the Tana river systm and the Alta and Reisa rivers. Gold has been found in small amount in all kinds of sand- and gravel deposits and also in the unwashed moraine deposits. The gold fields which have been subject to production or prospection work are situated at the upper parts of the rivers. The occurrences of alluvial gold in Finnmark may be classified in The following way: 1. Preglacial accumulations undisturbed by ice erosion during the ice age. 2: Preglacial accumulations disturbed and redeposited in moraines and fluvioglacial deposits. 3. Accumulations in postglacial river beds. The gold in these deposits seems chiefly to have been washed out from the moraines. Mineralogical analyses of the mineral composition of the gold-bearing sand and gravel have been carried out. The minerals of the gold-bearing deposits may be divided in two groups: 1. Minerals belonging to the surrounding solid rock. 2. Minerals which do not seem to belong to the solid rock in the neighbourhood of the deposits.

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Faktaarket ble generert 27.04.2024

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