Norsk versjon
THE NATURAL STONE DATABASE
Occurence 301 - 605 Langmyra 1
(Object Id: 15447)
(Last updated: 08.06.2012)

Location
County: Oslo Municipality: Oslo (301)
Map 1:50000: Oslo (1914-4) Map 1:250000: Oslo
Coordinate system: EU89-UTM Zone 32
East: 597209 m. North: 6649390 m.
Longitude: 10.7413880 Latitude: 59.9703660
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Resource
Resource Type: Granite and other igneous rocks Resource Subtype: Syenite
Brickstone(Y/N): N
Importance
Raw material meaning: Little Importance (reg. 18.02.2015)
Historical: Yes , (Confirmed 24.sep.2004 by Leif Furuhaug)

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


Deposit rock
Lithology: Weathering colour:
Genesis: Form:
Main texture:
Main grain size: Main alteration:
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Period:
Province:
Geotec.unit:
Tectonic complex:
Igneous complex:
Group: Formation:

Information(s) in free text format
Description
Bruddveggen inn mot fjellryggen vest for bruddet er 2-3 m høy, men her er det ikke tatt ut mye stein. Bruddet dekker ikke mange m2. Bergarten er grefsensyenitt.
Location
En kommer til Langmyra ved å gå tursti rett østover fra parkeringsplassen sør for Sognsvann. Dette bruddet ligger vest for Langmyra, øst for en fjellrygg.

Photo(s) from the Deposit area:
Photo no. 1 showing Hovedbruddet"

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.

Name of Locality: Langmyra 2
(Object Id: 15449 605,01,00)

Location
County: Oslo Municipality: Oslo (301)
Map 1:50000: Oslo (1914-4) Map 1:250000: Oslo
Coordinate system: EU89-UTM Zone 32
East: 597119 m. North: 6649249 m.
Longitude: 10.7397110 Latitude: 59.9691300
Show on map

Resource
Resource Type: Granite and other igneous rocks Resource Subtype: Syenite
Brickstone(Y/N):
Importance
Historical: Yes , (Confirmed 24.sep.2004 by Leif Furuhaug)

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


Information(s) in free text format
Description
Det er brutt ut stein over et tilnærmet sirkelrundt område på 30-40 m i diameter, men avsenkningen er stort sett < 1 m.
Location
Dette bruddet ligger på en fjellkolle sørvest for Langmyra 1.

Photo(s) from the Deposit area:
Photo no. 1 showing Utbrutt blokk fra en fjellrygg"


The fact sheet was created on 08.12.2021

Questions or comments regarding the fact sheet can be emailed to:
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