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Norsk versjon | ||||
| THE NATURAL STONE DATABASE | |||||
| Deposit Area 1141 - 602 | |||||
| (Last updated 12.jan.2024) | |||||
Name of Deposit Area : Helgøy |
| (Object Id : 1141,602,00,00) |
| Location |
| County : | Rogaland (11) | Municipality : | Finnøy (1141) |
| Map 1:50000: | Strand (1213-2) | Map 1:250000: | Haugesund |
| Marking point: | Longitude: | 5.8485880 | Latitude: | 59.2342970 |
| EU89-UTM Zone 32 | (Coordinates NOT confirmed) |
| X-coord: | 320218 m. | Y-coord: | 6570391 m. |
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| Commodity |
| Main Type: | Slate and schist | Sub Type: | Quartzitic flagstone | |
| Brickstone(Y/N): | Y |
| Production |
| Activity: | Stone quarrying | Reserves: | ||
| Prod. method: | Open pit mining | Production: | ||
| Prod. status: | Volume of dump: |
| Importance |
| Public: | Not Assessed (reg. 21.03.2017) |
| Economical: | Could be significant , (Confirmed 13.nov.2006 by Bjørn Lund) |
Products |
| Commercial Name | Product description |
| Murestein | Classification :Cleaved slabs | Colour :Dark gray | |
| Play of colours : | Uniformity : | ||
| Lithology :Amphibolite | Grain size :Medium grained (1-3 mm) |
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Operations |
| From - To | Activity | Comments | |
| Regular production | Company/Institution :Helgøy Hellebrudd | ||
| Eier Harald Helgøy |
Deposit rock |
| Lithology: | Weathering colour: | |||
| Era: | Period: | |||
| Dating: | Method: | |||
| 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: |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Not defined | Schistosity |
Information(s) in free text format |
| Free text |
| Bruddet ligger like ved sjøen og er en amfibolittisk gneis som er sterkt foliert, men noe foldet. Spaltetykkelse fra 2 - 5 cm. Sonen er sterkt overdekket, men kan ha en betydelig utstrekning. Overflaten er ruglete svart- til gråglinsende og ligner på Jondal skiferen. |
| Photo(s) from the Deposit area: |
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| The fact sheet was created on 19.05.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |