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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 2012 - 008 | |||||
| (Last updated 10.apr.2007) | |||||
Name of Deposit Area : Eira |
| (Object Id : 2012,008,00,00) |
| Location |
| County : | Finnmark (20) | Municipality : | Alta (2012) |
| Map 1:50000: | Sennalandet (1935-3) | Map 1:250000: | Hammerfest |
| Marking point: | Longitude: | 23.5208270 | Latitude: | 70.2112360 |
| EU89-UTM Zone 34 | (Coordinates IS confirmed) |
| X-coord: | 595224 m. | Y-coord: | 7791401 m. |
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| Commodity |
| Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Copper | |
| Element(s): | Cu |
| Production |
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: | 10 m3 |
| Importance |
| Public: | Little Importance (reg. 18.02.2015) |
| Economical: | Minor interest , (Confirmed 03.feb.2005 by Peter Ihlen) |
Operations |
| From - To | Activity | Comments | |
| 1990 - 1990 | Sampling | Company/Institution :NGU |
Mineralization |
| Era: | Proterozoic | Period: | Paleoproterozoic | |
| Dating: | Method: | |||
| Genesis: | Hydrothermal breccia | Form: | Irregular | |
| Main texture: | Breccia cement | Min. distribution: | Semi-massive (20-50 % ore minerals) |
| Main grain size: | Very unevenly grained | Main alteration: |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Proterozoic | Period: | Paleoproterozoic |
| Province: | Caledonian Basement Province | |
| Geotec.unit: | Komagfjord-Repparfjord Greenstone Belt | |
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Holmvann | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Carbonate | Major mineral (>10%) | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Ore mineral | Pyrite | Major mineral (>10%) | |
| Ore mineral | Chalcopyrite | Major mineral (>10%) | |
| Ore mineral | Bornite | Accessory mineral (<1%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Granitt | Intrusive Original rock :Granite |
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| Metamorphic facies :Greenschist | |||
| Host rock | Grønnstein | Extrusive Original rock :Tuff |
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| Metamorphic facies :Greenschist |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Host rock | Foliation | Strike/Dip :50 / 55 | Pre-mineralisation ;...Effect :None | |
| Host rock | Schistosity | Strike/Dip :174 / 85 | Syn-mineralisation ;...Effect :Modifies | |
| Host rock | Fracture cleavage | Strike/Dip :220 / 85 | Syn-mineralisation ;...Effect :Controls |
Information(s) in free text format |
| Free text |
| To gjenraste groper ligger på sørsida av Skillefjordelva. Det finnes ingen opplysninger om tidligere aktivitet. Sulfidmineraliseringene opptrer langs grensen mellom grønstein og granitt, og domineres av kvarts-karbonat breksje med sulfidmatriks. Få grønnsteinsfragmenter finnes også i breksjen som dels er forskifret. Breksjen er ikke påvist i fast fjell men antas å følge grensen mellom grønnsteinen og granitten med retning tilnærmet NØ-SV. Både granitten og grønnsteinen fører noe rust og stikk med sulfider. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| HA-7-12 | Bedrock |
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| HA-7-13 | Dump |
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| HA-7-14 | Bedrock |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 2012 - 008 Eira |
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# |
| HA-7-12 | Bedrock | 202 | 53 | 5 | 11 | 51 | .2 | 6.0 |
| HA-7-13 | Dump | 66448 | 8 | 11 | 10 | 19 | 1.4 | 15.0 |
| HA-7-14 | Bedrock | 521 | 4 | 2 | 1 | 5 | .1 | 1.0 |
| ------------------ |
| Sample No. | Pt# | Pd# | Rh# | As* | Cd* | Ba* | Mo* | Sb* | Bi* |
| HA-7-12 | 1.0 | 39.0 | 2.0 | 24 | .2 | 23 | 1.00 | 2 | 2 |
| HA-7-13 | 1.0 | 2.0 | 2.0 | 31 | 6.8 | 17 | 3.00 | 2 | 8 |
| HA-7-14 | 1.0 | 2.0 | 2.0 | 2 | .2 | 27 | 2.00 | 2 | 3 |
| ------------------ |
| Sample No. | S% | V* | Cr* | Mn* | Fe% | Th* | U* | W* | Sr* |
| HA-7-12 | .45 | 105 | 124 | 461 | 5.40 | 6.00 | 5.00 | 1 | 4.0 |
| HA-7-13 | 13.01 | 22 | 30 | 1018 | 11.60 | 2.00 | 8.00 | 1 | 30.0 |
| HA-7-14 | .01 | 2 | 5 | 67 | .41 | 1.00 | 5.00 | 1 | 8.0 |
| ------------------ |
| Sample No. | La* | B* | Na* | Mg* | Al* | P* | K * | Ca* | Ti* |
| HA-7-12 | 8.00 | 2 | 0 | 2 | 2 | 0 | 0 | 0 | 0 |
| HA-7-13 | 8.00 | 2 | 0 | 1 | 1 | 0 | 0 | 5 | 0 |
| HA-7-14 | 2.00 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 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 |