Faktarka for Forekomstområde 128

					English version
	INDUSTRIMINERALDATABASEN
	Forekomstområde 128 - 367
	(Sist oppdatert 20.nov.2024)

Navn på deposit area : Nordby

(Objekt Id : 0128,367,00,00)

Lokalisering

Fylke :

Østfold (01)

Kommune :

Rakkestad (0128)

Kart 1:50000:

Sarpsborg (1913-1)

Kart 1:250000:

Oslo

Markeringspunkt:

Lengdegrad:

11.3634160

Breddegrad:

59.3920570

EU89-UTM Zone 32

(Coordinates NOT confirmed)

X-koord:

634218 m.

Y-koord:

6586092 m.

Materialtype

Hovedtype:

Feltspat

Subtype:

Pegmatittisk feltspat

Betydning

Offentlig: Not Assessed (reg. 18.02.2015)

Economical: Ikke vurdert

Products

Element/product Crude ore grade or quality

PEGFEL %

Mineralization

Era: Period:

Dating: Method:

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:

Opplysning(er) i fritekstformat

Fri tekst

Broch (1934) skriver: "Bruddet ligger i utmarken 5-600 m vest for gården." ... "For tiden sees bare en vannfylt grop med steile vegger. Lengde 25 m i retning vestsydvest, bredde 4 m. Der sitter litt pegmatit - alkalifeltspat, kvarts, glimmer - igjen på veggene, men der er øiensynlig tatt ut omtrent alt over vannspeilet. I vestsydvestenden sees gangen fortsette, men her er den smal. " "Grubene blev optatt av gårdens folk og senere drevet 3-4 år av Smålenes Grubekompani." Feldspaten var angivelig for det meste grønn, idet der var adskilli kis des. Der var også en del glimmer - mest vrak. Driften stanset 1919."

Bibliography:

From NGU's Reference Archive:

Hauge, S. , 1944

Nordby grube. Kart over brudd og daganlegg 1:250.

;Norges geologiske undersøkelse;KART;Bergarkivet; No.K 921

Broch, Olaf Anton , 1964

Age determination of Norwegian minerals up to March 1964.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.228;84-113 pages

Abstract:

A summary of absolute age determination of Norwegian minerals and rocks up to March 1964. Map of loclities, diagrams and analysis of the data.

Broch, Olaf Anton , 1934

Feltspat IV. Forekomster i Akershus og Østfold øst for Glomma.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.141;1-119 pages

Abstract:

In this publication, which is a sequel to Feltspat II and III by Olaf Andersen and Tom F.W. Barth, brief and exoteric descriptions and some information on production and history are given of about 180 individual feldspar, quartz, and mica deposits, all of them situated east of the river Glomma in south-eastern Norway. Particulars of purely geological or mineralogical interest are few; most of them are given as footnotes or in the preface, but the minerals of each deposit, exceot quartz, feldspar and mica, are listed. The deposits are cross cutting pegmatite dikes, with a northeastern strike and a steep dip. The dikes exhibit a marked zoning; moreover, they are remarkably free from rare minerals, the occurrences of which seems to be restricted almost entirely to the dikes near the Idefjord (Bohus) granite.

	Era:		Period:
	Dating:		Method:
	Genesis:		Form:
	Main texture:		Min. distribution:

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

	Abstract:
	A summary of absolute age determination of Norwegian minerals and rocks up to March 1964. Map of loclities, diagrams and analysis of the data.