Fact Sheet for <b>Occurence 3107

					Norsk versjon
	THE NATURAL STONE DATABASE
	Occurence 3107 - 639 Steinhytta
	(Object Id: 16248) (Last updated: 16.02.2010)

Belongs to the Province: Iddefjord granite

Location

County:

Østfold

Municipality:

Fredrikstad (3107)

Map 1:50000:

Fredrikstad (1913-3)

Map 1:250000:

Oslo

Coordinate system:

EU89-UTM Zone 32

East:

610370 m.

North:

6562705 m.

Longitude:

10.9318620

Latitude:

59.1890860

Show on map

Resource

	Resource Type:	Granite and other igneous rocks	Resource Subtype:	Granite
			Brickstone(Y/N):	N

Importance

Raw material meaning:

Not Assessed (reg. 21.03.2017)

Historical:

Yes , (Confirmed 29.jun.2005 by Leif Furuhaug)

Resources and production

	Activity:	Stone quarrying	Reserves:
	Operating method:	Open pit mining	Historical production:

Deposit rock

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Information(s) in free text format

Description

Årsaken til at disse bruddene ble funnet var et skilt om en severdighet ved RV 108 med påskriften: Steinhytta. Vi antok at dette kunne føre til et steinbrudd. Det viste seg ikke å stemme. Steinhytta var en heller som i steinalderen var benyttet som boplass. Men på veien dit kom vi forbi et område hvor det var brutt ut stein. Totalt 3 steder er det tatt ut stein. Det største bruddet er 30-40 m i diameter, og avsenkningen er ca. 3 m i bakkant. En god del stor blokk ligger igjen.

Location

Ved RV108 mot Hvaler kommer man til skiltet "severdighet - Steinhytta" 5-600 m etter å ha forlatt bybebyggelsen på Kråkerøy. En sti i NV-lig retning fører til stedet, som ligger 5-600 m fra veien inne i skogen. 2-300 m fra riksveien og ca. 100 m SV for stien ligger dette bruddområdet.

Photo(s) from the Deposit area:

Photo no. 1 showing Bruddet"

Bibliography:

From NGU's Reference Archive:

Oxaal, John , 1916

Norsk granit

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.76;1-220 pages

Abstract:

This work is a report of granite and the granite industry in Norway. It contains a description of the various fields of granite and similar rocks from a scientific as well as from a technical and economical standpoint. The geological occurrence of the various rocks, their chemical and mineralogical composition, are thoruoughlyoughly treated, also the questions of practical interest, as the quality and other technical properties, further the problems of location and conditions for transport, conditions for quarrying and otherquestions of interest in the utilization of the various occurrences of granite. Granite: This chapter consideres first the mineralogical and chemical composition of the granite, and the various types of granite resulting from the varying composition; thereafter the most important structural types and how these are dependent on the geological appearance of the rock. Lakkolites and other froms assumed by granite masses when injected into the crust of the earth, are mentioned; some examples of beautifully formed lakkolites are also mentioned. The question of sheet structure and rift in the granite are of great importance in its utilization, and are of interest both practically and theoretically.

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