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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 1664 - 002 | |||||
| (Last updated 03.mai.2023) | |||||
Name of Deposit Area : Gammelgruva |
| (Object Id : 1664,002,00,00) |
| Location |
| County : | Sør-Trøndelag (16) | Municipality : | Selbu (1664) |
| Map 1:50000: | Tydal (1721-3) | Map 1:250000: | Trondheim |
| Marking point: | Longitude: | 11.4095270 | Latitude: | 63.1456240 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 621419 m. | Y-coord: | 7004092 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 Co |
| Production |
| Activity: | Mining | Reserves: | ||
| Prod. method: | Open pit and underground mining | Production: | ,15 thousand tons | |
| Prod. status: | Volume of dump: | 10000 m3 |
| Importance |
| Public: | Not Assessed (reg. 18.02.2015) |
| Economical: | Not classified/evaluated |
Operations |
| From - To | Activity | Comments | |
| 1713 - 1727 | Regular production | Company/Institution :Selboe kobberverk | |
| 1734 - 1764 | Regular production | ||
| 1826 - 1835 | Test mining | ||
| 1905 - 1906 | Test mining | Company/Institution :The Kjøli Mines Ltd |
Mineralization |
| Era: | Paleozoic | Period: | Ordovician | |
| Dating: | Method: | |||
| Genesis: | Stockwork formation | Form: | Irregular | |
| Main texture: | Min. distribution: | Semi-massive (20-50 % ore minerals) |
| Main grain size: | Medium grained (1-3 mm) | Main alteration: | Chloritisation |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Paleozoic | Period: | Ordovician |
| Province: | Caledonides | |
| Geotec.unit: | Trondheim Nappe Complex | |
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Fundsjø | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Ore mineral | Chalcopyrite | Major mineral (>10%) | |
| Ore mineral | Pyrrhotite | Major mineral (>10%) | |
| Ore mineral | Pyrite | Major mineral (>10%) | |
| Ore mineral | Magnetite | Subordinate mineral (1-10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Grønnskifer | Extrusive Original rock :Basalt |
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| Metamorphic facies :Amphibolite | |||
| Wall rock | Porfyrisk metadoleritt | Intrusive Original rock :Dolerite |
|
| Wall rock | Kvartsporfyr | ||
| Wall rock | Grønnskifer | Extrusive Original rock :Basalt |
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| Metamorphic facies :Amphibolite |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Host rock | Fold axis | Post-mineralisation ;...Effect :Modifies | ||
| Host rock | Foliation | Post-mineralisation ;...Effect :Modifies |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| ST0228.TGST93.015 | Dump |
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| ST0228.TGST93.016 | Dump |
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| ST0228.TGST93.017 | Dump |
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| ST0228.TGST93.018 | Dump |
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| ST0228.TGST93.019 | Dump |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 1664 - 002 Gammelgruva |
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# |
| ST0228.TGST93.015 | Dump | 19950 | 773 | 23 | 312 | -1 | .8 | 6.0 |
| ST0228.TGST93.016 | Dump | 9064 | 338 | 22 | 24 | -1 | .5 | 7.0 |
| ST0228.TGST93.017 | Dump | 15414 | 387 | 43 | 286 | -1 | .7 | 14.0 |
| ST0228.TGST93.018 | Dump | 1363 | 231 | 11 | 28 | -1 | -.3 | 1.0 |
| ST0228.TGST93.019 | Dump | 25700 | 306 | 5 | 568 | -1 | 1.4 | 13.0 |
| ------------------ |
| Sample No. | As* | Cd* | Ba* | Mo* | Sb* | Bi* | V* | Cr* | Mn* |
| ST0228.TGST93.015 | 17 | 1.8 | 3 | 3.00 | -2 | 26 | 7 | -1 | 182 |
| ST0228.TGST93.016 | 6 | 1.8 | -1 | 3.00 | -2 | 2 | 3 | -1 | 186 |
| ST0228.TGST93.017 | 65 | 3.2 | 5 | -1.00 | -2 | 64 | 1 | 1 | 179 |
| ST0228.TGST93.018 | 8 | -.2 | -1 | 3.00 | -2 | 8 | 19 | -1 | 307 |
| ST0228.TGST93.019 | 43 | 3.4 | -1 | -1.00 | -2 | 51 | 2 | -1 | 164 |
| ------------------ |
| Sample No. | Fe% | Th* | U* | W* | Sr* | La* | B* | ||
| ST0228.TGST93.015 | 40.75 | 3.00 | -5.00 | 3 | 2.0 | -1.00 | 6 | ||
| ST0228.TGST93.016 | 42.06 | 3.00 | -5.00 | 2 | 1.0 | -1.00 | 6 | ||
| ST0228.TGST93.017 | 26.17 | 2.00 | -5.00 | 2 | 2.0 | -1.00 | -3 | ||
| ST0228.TGST93.018 | 46.96 | 3.00 | -5.00 | -2 | 2.0 | -1.00 | 3 | ||
| ST0228.TGST93.019 | 35.99 | 2.00 | -5.00 | 6 | 2.0 | 1.00 | 5 |
| 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 |