Norsk versjon | |||||
THE NATURAL STONE DATABASE | |||||
Deposit Area 1133 - 607 | |||||
(Last updated 14.mar.2019) |
Name of Deposit Area : Randa |
(Object Id : 1133,607,00,00) |
Location |
County : | Rogaland (11) | Municipality : | Hjelmeland (1133) |
Map 1:50000: | Strand (1213-2) | Map 1:250000: | Sauda |
Marking point: | Longitude: | 6.0097920 | Latitude: | 59.2098560 |
EU89-UTM Zone 32 | (Coordinates IS confirmed) |
X-coord: | 329289 m. | Y-coord: | 6567248 m. |
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Commodity |
Main Type: | Slate and schist | Sub Type: | Quartzitic flagstone | |
Brickstone(Y/N): |
Production |
Activity: | Stone quarrying | Reserves: | ||
Prod. method: | Open pit mining | Production: | ||
Prod. status: | Disused, closed | Volume of dump: |
Importance |
Public: | Not Assessed (reg. 21.03.2017) |
Economical: | Could be significant , (Confirmed 15.feb.2005 by Bjørn Lund) |
Products |
Commercial Name | Product description |
Classification : | Colour :Grayish | ||
Play of colours : | Uniformity : | ||
Lithology : | Grain size : |
Operations |
From - To | Activity | Comments | |
1900 | Regular production | Company/Institution :Olav Vik, Stavanger og Lars Randa |
Deposit rock |
Lithology: | Quartzrich flagstone | Weathering colour: | ||
Era: | Period: | |||
Dating: | Method: | |||
Genesis: | Sedimentary/metamorphic | Form: | ||
Main texture: | Schistose |
Main grain size: | Fine grained (< 1 mm) | Main alteration: |
Strike/Dip: | Direction: | |||
Plunge: |
Stratigraphic classification of host rock |
Era: | Period: |
Province: | ||
Geotec.unit: | ||
Tectonic complex: | ||
Igneous complex: |
Group: | Formation: |
Mineralogy |
Relationship | Mineral | Amount | |
Not defined | Quartz | Major mineral (>10%) | |
Not defined | Mica | Major mineral (>10%) | |
Not defined | Feldspar | Major mineral (>10%) | |
Not defined | Epidote | Subordinate mineral (1-10%) | |
Not defined | Carbonate | Accessory mineral (<1%) |
Structures |
Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
Not defined | Schistosity | Strike/Dip :243 / 25 |
Information(s) in free text format |
Description |
På Randøy ved gården Randa ligger 5 brudd langsetter tilnærmelsesvis samme bergartssone. Mektigheten er opp mot 4 m i de østlige bruddene. Spalteegenskapene er svært uregelmessige og skliferen er hard og sprø. Opptreden av folder og oppsprekkinger forekommer hyppig. Forekomsten egner seg kun til drift i liten skala. Dette er et av de østligste bruddene. |
Photo(s) from the Deposit area: |
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Bibliography: |
From NGU's Reference Archive: |
The fact sheet was created on 18.05.2024 |
Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
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