Norsk versjon | |||||
THE NATURAL STONE DATABASE | |||||
Deposit Area 919 - 605 | |||||
(Last updated 08.jul.2021) |
Name of Deposit Area : Øynaheia II |
(Object Id : 0919,605,00,00) |
Location |
County : | Aust-Agder (09) | Municipality : | Froland (0919) |
Map 1:50000: | Arendal (1611-4) | Map 1:250000: | Arendal |
Marking point: | Longitude: | 8.4547990 | Latitude: | 58.4950850 |
EU89-UTM Zone 32 | (Coordinates IS confirmed) |
X-coord: | 468219 m. | Y-coord: | 6483960 m. |
|
Commodity |
Main Type: | Brickstone | Sub Type: | Unspecified | |
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: | Significant , (Confirmed 28.mai.2017 by Tom Heldal) |
Historical: | No , (Confirmed 20.nov.2009 by Leif Furuhaug) |
Products |
Commercial Name | Product description |
Froland Stein og Hellebrudd | Classification :Dry-wall stone | Colour :Grayish | |
Play of colours : | Uniformity :Medium good | ||
Lithology :Quartzrich flagstone | Grain size :Medium grained (1-3 mm) |
Mineralogy: |
Feldspar | Major mineral (>10%) | ||
Quartz | Major mineral (>10%) | ||
Mica | Subordinate mineral (1-10%) |
|
Operations |
From - To | Activity | Comments | |
Regular production | Company/Institution :Froland Stein og Hellebrudd | ||
Adresse: Oveland, 4820 Froland Tlf. 90888075/37038046 Internett:http://ovland.no/ Produksjon i brudd representerte ca. 5 årsverk i 2007. |
Deposit rock |
Lithology: | Quartzrich flagstone | Weathering colour: | ||
Era: | Proterozoic | Period: | ||
Dating: | Method: | |||
Genesis: | Sedimentary/metamorphic | Form: | Layer | |
Main texture: | Foliated |
Main grain size: | Main alteration: |
Strike/Dip: | Direction: | |||
Plunge: |
Stratigraphic classification of host rock |
Era: | Proterozoic | Period: |
Province: | South Norwegian Basement Province | |
Geotec.unit: | ||
Tectonic complex: | ||
Igneous complex: |
Group: | Formation: |
Mineralogy |
Relationship | Mineral | Amount | |
Not defined | Quartz | Major mineral (>10%) | |
Not defined | Feldspar | Major mineral (>10%) | |
Not defined | Mica | Subordinate mineral (1-10%) |
Structures |
Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
Not defined | Schistosity | Strike/Dip :220 / 90 |
Information(s) in free text format |
Description |
Bruddet er drevet parallelt med veien i NNØ-VSV retning i knapt 200 m lengde langsetter ei bratt li. Det er ingen begyggelse i nærheten, og det vil neppe bli ressursproblemer på mange år med dagens størrelse på uttaket. Bergarten er en steiltstående, skifrig og omdannet sandstein som spalter i forskjellige tykkelser. Den sorteres i følgende tykkelser: 0,5 -2 cm, 2-4 cm, 6-8 cm, 8-10 cm og > 10 cm. Steinen brukes mest som murestein, men leverses også som trappestein, tramheller og bordplater. |
Location |
Bruddet ligger like øst for veien mellom Grimstad og Herefoss, vel 1 km N for Snøløsvannet. |
Photo(s) from the Deposit area: |
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The fact sheet was created on 16.05.2024 |
Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
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