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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 1224 - 024 | |||||
| (Last updated 05.jan.2024) | |||||
Name of Deposit Area : Dyråsen |
| (Object Id : 1224,024,00,00) |
| Location |
| County : | Hordaland (12) | Municipality : | Kvinnherad (1224) |
| Map 1:50000: | Fusa (1215-3) | Map 1:250000: | Bergen |
| Marking point: | Longitude: | 5.8128280 | Latitude: | 60.0369350 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 322471 m. | Y-coord: | 6659803 m. |
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| Commodity |
| Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
| Element(s): | Fe Kis |
| Production |
| Activity: | Mining | Reserves: | ||
| Prod. method: | Open pit mining | Production: | ||
| Prod. status: | Disused, closed | Volume of dump: |
| Importance |
| Public: | Not Assessed (reg. 18.02.2015) |
| Economical: | Not classified/evaluated |
| Historical: | Yes , (Confirmed 16.sep.2022 by Terje Bjerkgård) |
Mineralization |
| Era: | Paleozoic | Period: | Ordovician | |
| Dating: | Method: | |||
| Genesis: | Volcex | Form: | Layer | |
| Main texture: | Massive | Min. distribution: | Massive (>50 % ore minerals) |
| Main grain size: | Fine grained (< 1 mm) | Main alteration: | Chloritisation |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Paleozoic | Period: | Ordovician |
| Province: | Caledonides | |
| Geotec.unit: | Hardangerfjord Nappe Complex | |
| Tectonic complex: | Varaldsøy Complex | |
| Igneous complex: |
| Group: | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Chlorite | Subordinate mineral (1-10%) | |
| Gangue mineral | Amphibole | Accessory mineral (<1%) | |
| Ore mineral | Magnetite | Major mineral (>10%) | |
| Ore mineral | Pyrite | Major mineral (>10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Greenschist | Sedimentary Original rock :Tuffite |
|
| Metamorphic facies :Greenschist |
Information(s) in free text format |
| Free text |
| Dyråsen befinner seg ca. 500 m mot NV i forhold til Jernsmauget og er den nordligste del av samme mineralisering. Den nordligste gruva består av en dyp, vertikal skjæring med stoll som er godt stemplet med tømmer. Den er helt utilgjengelig. Malmsonen sees i taket over stollen og er ca. 1 m mektig. Dyråsen II er en dagskjæring ca. 100 m sør for hovedgruva og består av en ca. 40 m lang skjæring parallell malmsonen, ca. 3-5 m dyp og inntil 1.5 m bred. Mellom disse to gruvene er det en dyp utilgjengelig strosse. I veggen av dagskjæringen er det båndet magnetitt-pyritt mineralisering, dels sliret, og som er omgitt av klorittisk skifer. |
| Photo(s) from the Deposit area: |
|
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| DYRÅSEN-01 | Bedrock |
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| DYRÅSEN-02 | Bedrock |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 1224 - 024 Dyråsen |
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# |
| DYRÅSEN-01 | Bedrock | 1085 | 117 | 11 | 41 | 7 | .2 | 6.0 |
| DYRÅSEN-02 | Bedrock | 379 | 26 | 19 | 272 | 4 | .5 | 46.0 |
| ------------------ |
| Sample No. | As* | Cd* | Ba* | Mo* | Sn* | Sb* | Bi* | Se* | Ga* |
| DYRÅSEN-01 | 5 | .1 | 30 | 17.60 | 8 | 1 | 0 | 3.00 | 48.50 |
| DYRÅSEN-02 | 30 | .1 | 10 | 32.00 | 1 | 0 | 3 | 26.00 | 8.16 |
| ------------------ |
| Sample No. | Ge* | In* | S% | V* | Cr* | Mn* | Fe% | Th* | U* |
| DYRÅSEN-01 | 1.84 | 0.24 | 1.68 | 130 | 16 | 723 | 48.90 | 0.37 | 1.00 |
| DYRÅSEN-02 | 0.21 | 0.03 | 9.99 | 44 | 5 | 109 | 43.70 | 0.03 | 0.20 |
| ------------------ |
| Sample No. | W* | Rb* | Sr* | Y* | Zr* | Nb* | Ta* | Cs* | La* |
| DYRÅSEN-01 | 5 | 3.6 | 38.3 | 16.5 | 23 | 19.40 | 0.48 | 0.15 | 0.90 |
| DYRÅSEN-02 | 1 | 0.2 | 9.9 | 1.9 | 1 | 0.80 | 0.05 | -0.05 | 0.50 |
| ------------------ |
| Sample No. | Ce* | Li* | Be* | P* | Sc* | Ti* | Te* | Hf* | Re* |
| DYRÅSEN-01 | 2.26 | 27 | 1 | 120 | 14.80 | 3290 | 0.85 | 0.70 | 0 |
| DYRÅSEN-02 | 1.20 | 2 | 0 | 130 | 1.20 | 120 | 11.90 | -0.10 | 0 |
| ------------------ |
| Sample No. | Tl* | ||||||||
| DYRÅSEN-01 | 0 | ||||||||
| DYRÅSEN-02 | 0 |
| 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 |