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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 1644 - 023 | |||||
| (Last updated 07.nov.2023) | |||||
Name of Deposit Area : Holdsjøen |
| (Object Id : 1644,023,00,00) |
| Location |
| County : | Sør-Trøndelag (16) | Municipality : | Holtålen (1644) |
| Map 1:50000: | Ålen (1720-4) | Map 1:250000: | Røros |
| Marking point: | Longitude: | 11.4569330 | Latitude: | 62.8780940 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 624946 m. | Y-coord: | 6974391 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 Zn |
| Production |
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: | 10 m3 |
| Importance |
| Public: | Not Assessed (reg. 18.02.2015) |
| Economical: | Not classified/evaluated |
Operations |
| From - To | Activity | Comments | |
| 1997 - 1997 | Sampling | Company/Institution :NGU |
Mineralization |
| Era: | Paleozoic | Period: | Ordovician | |
| Dating: | Method: | |||
| Genesis: | Volcex | Form: | Lens | |
| Main texture: | Structureless | Min. distribution: | Semi-massive (20-50 % ore minerals) |
| Main grain size: | Medium grained (1-3 mm) | Main alteration: | Skarn formation |
| Strike/Dip: | 60 / 90 | Direction: | ||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Paleozoic | Period: | Ordovician |
| Province: | Caledonides | |
| Geotec.unit: | Trondheim Nappe Complex | |
| Tectonic complex: | Meråker Nappe | |
| Igneous complex: |
| Group: | Fundsjø | Formation: | Hersjø |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Epidote | Major mineral (>10%) | |
| Gangue mineral | Amphibole | Major mineral (>10%) | |
| Gangue mineral | Calcite | Subordinate mineral (1-10%) | |
| Ore mineral | Pyrrhotite | Major mineral (>10%) | |
| Ore mineral | Chalcopyrite | Major mineral (>10%) | |
| Ore mineral | Sphalerite | Subordinate mineral (1-10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Wall rock | Amphibolite | Extrusive Original rock :Basalt |
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| Metamorphic facies :Amphibolite |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Wall rock | Foliation | Strike/Dip :262 / 65 | Post-mineralisation ;...Effect :Modifies |
| Photo(s) from the Deposit area: |
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Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| ST0214.01 | Dump |
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| ST0214.02 | Dump |
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| 399806 | Dump |
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| 399807 | Dump |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 1644 - 023 Holdsjøen |
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# |
| ST0214.01 | Dump | 11861 | 2598 | 3 | 170 | 140 | 2.9 | 143.0 |
| ST0214.02 | Dump | 10733 | 2540 | 7 | 380 | 333 | 3.0 | 82.0 |
| 399806 | Dump | 6538 | 1944 | 31 | 335 | 234 | 2.2 | 46.0 |
| 399807 | Dump | 7350 | 9742 | 48 | 27 | 8 | 1.6 | 21.0 |
| ------------------ |
| Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sb* | Bi* | S% |
| ST0214.01 | 2.0 | 1.0 | -2 | 13.0 | 2 | -1.00 | -3 | -3 | 5.86 |
| ST0214.02 | 1.0 | 1.0 | -2 | 11.8 | 4 | -1.00 | -3 | 5 | 15.83 |
| 399806 | 10 | 8.4 | 1 | 5.00 | 3 | 3 | |||
| 399807 | 3 | 50.9 | 1 | 0.50 | 3 | 3 |
| ------------------ |
| Sample No. | V* | Cr* | Mn* | Fe% | Th* | U* | W* | Sr* | La* |
| ST0214.01 | 1 | 1 | 700 | 11.34 | -2.00 | -8.00 | -2 | 24.0 | 2.00 |
| ST0214.02 | 2 | 1 | 339 | 24.56 | 3.00 | -8.00 | -2 | 5.0 | -1.00 |
| 399806 | 1 | 19 | 426 | 25.50 | 10.0 | 0.50 | |||
| 399807 | 1 | 18 | 620 | 2.04 | 11.0 | 0.50 |
| ------------------ |
| Sample No. | B* | Ti* | |||||||
| ST0214.01 | -3 | ||||||||
| ST0214.02 | -3 | ||||||||
| 399806 | 30 | ||||||||
| 399807 | 30 |
| 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 |