Norsk versjon | |||||
THE INDUSTRIAL MINERAL DATABASE | |||||
Occurence 5043 - 304 Rennselvatnet | |||||
(Object Id: 15084) (Last updated: 26.02.2004) |
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Location |
County: | Trøndelag | Municipality: | Raarvihke (5043) |
Map 1:50000: | Jomafjellet (1924-1) | Map 1:250000: | Grong |
Coordinate system: | EU89-UTM Zone 33 | (Coordinates NOT confirmed) |
East: | 447750 m. | North: | 7201550 m. |
Longitude: | 13.8946760 | Latitude: | 64.9339500 |
Show on map |
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Resource |
Resource Type: | Olivine | Resource Subtype: | Ultramafic (unspec.) |
Importance |
Raw material meaning: | Not Assessed (reg. 18.02.2015) |
Mineralization |
Genesis: | Form: | |||
Main texture: | Min. distribution: |
Main grain size: |
Strike/Dip: | Direction: | |||
Plunge: |
Stratigraphic classification of host rock |
Era: | Period: |
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Tectonic complex: | ||
Igneous complex: |
Group: | Formation: |
Bibliography: |
From NGU's Reference Archive: |
Roberts, David , 1997 |
Grong. Berggrunnsgeologisk kart Grong M 1:250 000; trykt i farger |
;Norges geologiske undersøkelse;KART;1 kart pages |
Abstract: | |
Beskrivelsen finnes på kartet. |
Fossen, H.; Kollung, S. , 1988 |
Jomafjellet. Berggrunnskart; Jomafjellet; 19241; 1:50 000; sort/hvitt; |
;Norges geologiske undersøkelse;KART |
Foslie, S. , 1957 |
Namsvatnet med en del av Frøyningsfjell Geologisk kart. Berggrunnskart; Namsvatnet; 1:100 000; trykt i farger; NGU Publ.nr.196 |
;Norges geologiske undersøkelse;KART |
Foslie, Steinar; Strand, Trygve , 1956 |
Namsvatnet med en del av Frøyningsfjell. |
;Norges geologiske undersøkelse;KARTBESKRIVELSE; TIDSSKRIFTARTIKKEL;NGU; No.196;1-82 + fo pages |
Abstract: | |
The rocks of the area can be divided into three sharply separated groups. These are in ascending tectonic order: 1. The Børgefjell Massif in the north-eastern part of the area. 2. A complex of low-grade metamorphic sediments and volcanics. 3. A complex of high-grade metamorphic schists and gneisses in the west part of the area. The Børgefjell Massif is built up of granitic gneisses, porphyroblast schists rich in albite-oligoclase and micaschists, with subordinate bands of quartzite. There is a sharp tectonic boundary with a structural conformity to the overlying rocks. The Børgefjell Massif is thus a basal gneiss massif in the sense of Olaf Holtedahl. Probably its rocks are of pre-Cambrian age. The granitic gneisses and schists are in alternating, rather flat-lying sheets. East of Store Namsvatnet a beautiful anticlinal structure appears. |
The fact sheet was created on 28.04.2024 |
Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
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