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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 814 - 023 | |||||
| (Last updated 29.nov.2001) | |||||
Name of Deposit Area : Dørdal |
| (Object Id : 0814,023,00,00) |
| Location |
| County : | Telemark (08) | Municipality : | Bamble (0814) |
| Map 1:50000: | Kragerø (1712-4) | Map 1:250000: | Arendal |
| Marking point: | Longitude: | 9.4734670 | Latitude: | 58.9640020 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 527230 m. | Y-coord: | 6536140 m. |
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| Commodity |
| Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Sulphides | |
| Element(s): | Kis |
| Production |
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: | 2 m3 |
| Importance |
| Public: | Little Importance (reg. 18.02.2015) |
| Economical: | Minor interest , (Confirmed 27.nov.2001 by Jan Sverre Sandstad) |
Operations |
| From - To | Activity | Comments | |
| 2000 - 2000 | Sampling | Company/Institution :NGU |
Mineralization |
| Era: | Proterozoic | Period: | Mesoproterozoic | |
| Dating: | Method: | |||
| Genesis: | Form: | Lens | ||
| Main texture: | Structureless | Min. distribution: | Disseminated (<20 % ore minerals) |
| Main grain size: | Fine grained (< 1 mm) | Main alteration: | Sericitisation |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Proterozoic | Period: | Mesoproterozoic |
| Province: | South Norwegian Basement Province | |
| Geotec.unit: | Bamble Complex | |
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Feldspar | Major mineral (>10%) | |
| Gangue mineral | Sericite | Major mineral (>10%) | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Biotite | Subordinate mineral (1-10%) | |
| Ore mineral | Pyrite | Major mineral (>10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Quartz-biotite schist| | Sedimentary Original rock :Greywacke |
|
| Metamorphic facies :Amphibolite |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Host rock | Fold axis | Dir./Plunge :106 / 0 | Post-mineralisation ;...Effect :Modifies |
Information(s) in free text format |
| Free text |
| Et lite skjerpet ligger nær et jorde ved gården Dørdal på nordsida av E18. Det er utsprengt 1x2 m på vestsida av en mindre knaus. Vertsbergart er en kvarts-biotitt skifer med mange, få cm-tynne kvartsslirer. Skjerpet er anlagt i ombøyningen til en åpen, liggende fold med foldeakse 106°/0°. Svak sulfiddisseminasjon opptrer i en 20 cm bred sterkt rustfarga og noe serisittisert sone i skiferen (prøve .01). Pyritt er det viktigste sulfidmineralet. Mineraliseringen er ubetydelig og har ingen økonomisk interesse. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| TE0262.01 | Dump |
|
| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 814 - 023 Dørdal |
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# |
| TE0262.01 | Dump | 338 | 153 | 14 | 31 | 67 | .2 | 16.0 |
| ------------------ |
| Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sb* | Bi* | S% |
| TE0262.01 | 1.0 | 7.0 | 6 | .3 | 27 | 8.00 | 6 | 2 | 2.99 |
| ------------------ |
| Sample No. | V* | Cr* | Mn* | Fe% | Th* | U* | W* | Sr* | La* |
| TE0262.01 | 67 | 42 | 130 | 8.42 | 10.00 | 4.00 | 4 | 5.0 | 15.00 |
| ------------------ |
| Sample No. | B* | ||||||||
| TE0262.01 | 4 |
| The fact sheet was created on 22.11.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |