Norsk versjon
THE NATURAL STONE DATABASE
Occurence 3001 - 631 Berby
(Object Id: 13120)
(Last updated: 16.02.2010)
Belongs to the Province: Iddefjord granite

Location
County: Viken Municipality: Halden (3001)
Map 1:50000: Kornsjø (2012-4) Map 1:250000: Uddevalla
Coordinate system: EU89-UTM Zone 32
East: 641250 m. North: 6540723 m.
Longitude: 11.4576830 Latitude: 58.9827130
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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)

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


Products
Commercial Name Product description
Iddefjord granitt Classification: Massive blocks Colour: Grayish
Play of colours : Uniformity: Good
Lithology: Granite Grain size: Fine - medium grained (<1mm - 3 mm)

Mineralogy:
Quartz Major mineral (>10%)
Plagioclase Major mineral (>10%)
Microcline Major mineral (>10%)
Biotite Subordinate mineral (1-10%)
Opaque Accessory mineral (<1%)
Titanite Accessory mineral (<1%)
Zircon Accessory mineral (<1%)
Hornblende Accessory mineral (<1%)
Chlorite Accessory mineral (<1%)
Apatite Accessory mineral (<1%)
Muscovite Accessory mineral (<1%)

Photo no. 1 showing Polert plate"

Deposit rock
Lithology: Weathering colour:
Era: Proterozoic Period:
Dating: 918 (-7\+7) million year Method: Rb/Sr
Genesis: Magmatic Form: Massive
Main texture: Structureless
Main grain size: Main alteration:
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Proterozoic Period:
Province: East Norwegian Basement Province
Geotec.unit:
Tectonic complex:
Igneous complex: Iddefjord Batholith
Group: Formation:

Information(s) in free text format
Description
Langs riksgrensen finnes tallrike mindre brudd for gatesteinsproduksjon, ingen som drives i dag. Forekomsten utgjør en åsrygg langs riksgrensen, rundt 200 meter bred og 1,5 km lang. Benkning og sprekketetthet varierer noe, men i store deler av området ligger benkeavstanden over 1,5 meter og avstanden mellom steile sprekker mer enn 2 meter. Granitten er middelskornet, grå med brunlig til rødlig skjær.
Location
Forekomsten ligger på vestsiden av den innerste del av Iddefjorden. Området er relativt utilgjenglig, og ligger langt fra kjørbar vei.

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.

Gautneb, Håvard ; Øvereng, Odd ; Heldal, Tom , 1999
Granittforekomster i Halden kommune.
;Norges geologiske undersøkelse;RAPPORT;NGU-rapport; No.99.061;17 pages
Abstract:
Rapporten gir en oversikt over de industrielle aspekter ved natursteinsdrift og variasjonen i Iddefjordsgranitten med hensyn til dens potensiale som naturstein. Ved Iddefjorden har granitten en lengde og bredde på henholdsvis ca. 20 og 4 km. Fra polerte prøveplater har vi delt granitten inn i følgende typer: Type A er middelskornet og noe rødlig i farge og har sin største utbredelse rundt brekke. Type B er middels til grovkornet og grå av farge og opptrer i området Hov-Folkvang-Skriverøya. Type C er lik type B men har en mindre kornstørrelse og finnes i området fra Berby og sørover. Type D er markert forskjellig fra alle andre og er finkornet og lys grå av farge, den finnes i området rundt Liholt. Basert på oppsprekking har vi delt inn granitten i følgende klasser: Klasse 1 (mest massiv) har mer enn 1.5 meter benketykkelse og 2-3 meter mellom vertikale sprekker. Klasse 3 (mest oppsprukket) har mindre enn 1.5 meter benketykkelse og 2-3 meter mellom vertikale sprekker. Granitt av klasse 2 finnes i en smal sone i Hovområdet samt ved Skriverøya; her er det mulig å finne forekomster med liten skrotprosent og stor blokk. Granitt av klasse 2 har ganske stor utbredelse, spesielt vil vi påpeke området nord for Brekke. Her er det mulig å finne forekomster som kan produsere stor blokk, men skrotprosenten vil nok bli høyere enn i området med klasse 1. I områder der granitten er av klasse 3 tror vi det er vanskelig å etablere lønnsom blokkproduksjon.

Pedersen, Svend; Maaløe, Sven , 1990
The Iddefjord granite: geology and age
;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU Bulletin; No.417;55-64 pages
Abstract:
The Iddefjord granite forms part of the Swedish Bohus batholith and ranges in composition from diorite to granite. The granite consists of 13 individual plutons, and the mechanism of intrusion is related to block subsidence rather than forceful intrusion. There is no evidence of marginal chill, and the temperature of the host gneiss must have been similar to that of the granites. This suggests that the intrusion took place in a regionally pre-heated rock complex under plutonic conditions. The major element trends of the granites are similar to those of recent granite batholiths. Rb-Sr age determinations carried out on two of the granites yield a common isochron age of 918+- 7Ma with an initial Sr isotope ratio of 0.7063 +- 0.0008 suggesting contributions from older crustal components. Mineral analyses from one of the investigated granite samples indicate a Rb/Sr mineral age in the order of 835 Ma, reflec- ting either a slow cooling of the pluton or a younger thermal effect causing resetting of the mineral system.

Name of Locality: Berby
(Object Id: 14769 631,01,00)

Location
County: Viken Municipality: Halden (3001)
Map 1:50000: Kornsjø (2012-4) Map 1:250000: Uddevalla
Coordinate system: EU89-UTM Zone 32
East: 641205 m. North: 6541200 m.
Longitude: 11.4572220 Latitude: 58.9869990
Show on map

Resource
Resource Type: Granite and other igneous rocks Resource Subtype: Granite
Brickstone(Y/N):
Resources and production
Activity: Stone quarrying Reserves:
Operating method: Open pit mining Historical production:


Name of Locality: Berby
(Object Id: 14770 631,02,00)

Location
County: Viken Municipality: Halden (3001)
Map 1:50000: Kornsjø (2012-4) Map 1:250000: Uddevalla
Coordinate system: EU89-UTM Zone 32
East: 641230 m. North: 6540800 m.
Longitude: 11.4573840 Latitude: 58.9834020
Show on map

Resource
Resource Type: Granite and other igneous rocks Resource Subtype: Granite
Brickstone(Y/N):
Resources and production
Activity: Stone quarrying Reserves:
Operating method: Open pit mining Historical production:


Name of Locality: Nypeto
(Object Id: 14771 631,03,00)

Location
County: Viken Municipality: Halden (3001)
Map 1:50000: Kornsjø (2012-4) Map 1:250000: Uddevalla
Coordinate system: EU89-UTM Zone 32 (Coordinates NOT confirmed)
East: 641418 m. North: 6540391 m.
Longitude: 11.4604020 Latitude: 58.9796770
Show on map

Resource
Resource Type: Granite and other igneous rocks Resource Subtype: Granite
Brickstone(Y/N):
Resources and production
Activity: Stone quarrying Reserves:
Operating method: Open pit mining Historical production:


The fact sheet was created on 18.10.2021

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