Fact Sheet for <b>Occurence 3107 - 635 Borredalsdammen</b>

					Norsk versjon
	THE NATURAL STONE DATABASE
	Occurence 3107 - 635 Borredalsdammen
	(Object Id: 9960) (Last updated: 16.02.2010)

Belongs to the Province: Iddefjord granite

Location

County:

Østfold

Municipality:

Fredrikstad (3107)

Map 1:50000:

Vannsjø (1913-4)

Map 1:250000:

Oslo

Coordinate system:

EU89-UTM Zone 32

East:

612889 m.

North:

6570335 m.

Longitude:

10.9798810

Latitude:

59.2569010

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Resource

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

Importance

Raw material meaning:

Little Importance (reg. 18.02.2015)

Historical:

Yes , (Confirmed 07.okt.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

Her er brutt blokkstein over en lengde på 10-20 m langs en benk i lys, middelskornet granitt. Bare brutt ned til ca. 1 m dybde, og det synes som lite er fraktet vekk; mye stor blokk ligger igjen. 400-500 m SV for bruddet er det flere steder gjort forsøk på granittbrytning. Men brytningen er raskt oppgitt, sannsynligvis grunnet inhomogen og pegmatittisk bergart.

Location

RV109 går i NØ-lig retning fra Fredrikstad sentrum mot Greåker. Vel 1 km NV for veien og like nord for Glemmen (ØS0088) ligger Borredalsdammen, en 1,5 km lang og smal innsjø. Lengderetningen er parallell med veien. Bruddet ligger midt mellom NØ-re ende på dammen og bebyggelsen langs RV109.

Photo(s) from the Deposit area:

Photo no. 1 showing Hovedbruddet"

Photo no. 2 showing Det minste 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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