(Last updated: 05.03.2025)
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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Occurence 4625 - 004 Raudabergtåi | |||||
| (Object Id: 4802) (Last updated: 05.03.2025) |
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| Location |
| County: | Vestland | Municipality: | Austevoll (4625) |
| Map 1:50000: | Fitjar (1114-1) | Map 1:250000: | Haugesund |
| Coordinate system: | EU89-UTM Zone 32 |
| East: | 282567 m. | North: | 6656891 m. |
| Longitude: | 5.1012780 | Latitude: | 59.9916560 |
| Show on map |
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| Resource |
| Resource Type: | Ferroalloys (Cr,Ni,Co,V,Mo,W) | Resource Subtype: | Nickel | |
| Element(s): | Kis Cu Co |
| Importance |
| Raw material meaning: | Not Assessed (reg. 18.02.2015) |
| Resources and production |
| Activity: | Pitting | Reserves: | ||
| Operating method: | Historical production: |
Mineralization |
| Era: | Paleozoic | Period: | Ordovician | |
| Genesis: | Orthomagmatic formation | Form: | Irregular | |
| Main texture: | Structureless | Min. distribution: | Semi-massive (20-50 % ore minerals) |
| Main grain size: | Medium grained (1-3 mm) | Main alteration: |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Paleozoic | Period: | Ordovician |
| Province: | ||
| Geotec.unit: | ||
| Tectonic complex: | ||
| Igneous complex: | Sunnhordland Batholith |
| Group: | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Hornblende | Major mineral (>10%) | |
| Gangue mineral | Plagioclase | Major mineral (>10%) | |
| Ore mineral | Pyrrhotite | Major mineral (>10%) | |
| Ore mineral | Chalcopyrite | Subordinate mineral (1-10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Gabbro | Intrusive Original rock :Gabbro |
Information(s) in free text format |
| Free text |
| Ved denne lokaliteten er det skjerpet to steder: et sydvestlig og et nordøstlig skjerp. Man finner begge skjerpene ved å gå mot syd langs kysten fra Salthella. Det sydvestlige skjerpet ligger på østsiden av en liten N-S-gående høyderygg, skjerpet er vannfylt (0.5 m dypt) og det er utskjerpet 8-10 m3. Sulfidsonen er orientert 0°/78°Ø, den kan følges 7-8 m og tykkelsen er opp til ca. 60 cm. Det nordøstlige skjerpet ligger 20-30 m NØ for det ovennevnte. Her er det utskjerpet 3-4 m3. Sulfidsonens orientering er usikker, men etter rustimpregneringen av den gabbroide vertsbergarten å dømme er orienteringen N-S. Mellom disse to skjerpene ses 2 rustsoner, hvorav den ene har litt massiv magnetkismalm. Litt syd for skjerpene ses flere mindre rustsoner med enkelte magnetkiskorn. Litt pentlanditt er observert i polerprøver, og mineraliseringen er likvid-magmatisk. |
| Historic |
| Hos Foslie (1925) er denne navngitt som 302 Selbø (Raubergtåen) skjerp. |
Bibliography: |
| From NGU's Reference Archive: |
| Foslie, Steinar , 1925 |
| Syd-Norges gruber og malmforekomster. |
| ;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.126;1-89 + ka pages |
| Abstract: | |
| On the map accompanying this paper all the mines and ore deposits of Southern Norway are collected for the first time.The material has been gathered from printed and unprinted sources, communications from mining engineers and geologists, and through personal visits. Included are all mines and ore deposits of former, present and future importance. Among the 1407 deposits on the map, there are furthermore included all of doubtful value and many which are quite unworkable, but of geological interest, or those which mark the distribution of ore bearing formations. For this reason it has been necessary to mark the deposits with signs of different size. The object is only to facilitate a comprehensive view of the map, and is not an effort of economic classification, which for most of them would be quite impossible. The sizes refer to the presumed importance of the ore deposit, and has nothing to do with the extent of the mining operations. Mines and deposits out of work during the period 1913-1923 have been separately marked (see the legend), also deposits which were formerly of much greater importance than now. For the smallest mines and deposits no distinction has been made in these respects. Among them are represented partly those, which are in reality unworkable, partly those which are little investigated. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| HO0113.01 | Bedrock |
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| HO0113.02 | Bedrock |
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| HO0113.03 | Bedrock |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 4625 - 004 Raudabergtåi |
Element analyses |
( *=parts pr. million, #=parts pr.billion, Negative values means below detection limit value.) |
| Sample No. | Sample Type | Cu* | Zn* | Pb* | Co* | Ni* | Ag* | Au# |
| HO0113.01 | Bedrock | 1284 | 27 | -3 | 1459 | 2039 | 1.2 | 12.0 |
| HO0113.02 | Bedrock | 516 | 15 | 5 | 709 | 1081 | .5 | 5.0 |
| HO0113.03 | Bedrock | 1445 | 22 | -3 | 486 | 2133 | -.3 | 5.0 |
| ------------------ |
| Sample No. | Pt# | Pd# | Rh# | As* | Cd* | Ba* | Mo* | Sb* | Bi* |
| HO0113.01 | -3.0 | -3.0 | -5.0 | 6 | -.2 | 2 | 44.00 | 11 | 4 |
| HO0113.02 | -3.0 | -3.0 | -5.0 | 6 | -.2 | 11 | 22.00 | -2 | -2 |
| HO0113.03 | 22.0 | 8.0 | -5.0 | 6 | -.2 | 6 | 7.00 | 4 | -2 |
| ------------------ |
| Sample No. | S% | V* | Cr* | Mn* | Fe% | Th* | U* | W* | Sr* |
| HO0113.01 | 27.13 | 15 | 228 | 89 | 37.83 | -2.00 | -5.00 | 6 | 3.0 |
| HO0113.02 | 10.01 | 4 | 54 | -2 | 20.91 | -2.00 | -5.00 | -2 | 15.0 |
| HO0113.03 | 7.63 | 25 | 261 | 146 | 14.79 | -2.00 | -5.00 | -2 | 10.0 |
| ------------------ |
| Sample No. | La* | B* | |||||||
| HO0113.01 | 1.00 | 4 | |||||||
| HO0113.02 | -1.00 | -3 | |||||||
| HO0113.03 | 2.00 | -3 |
| The fact sheet was created on 30.06.2025 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2025 Geological Survey of Norway |