Norsk versjon | |||||
THE ORE DATABASE | |||||
Occurence 5026 - 031 Rundhaugen | |||||
(Object Id: 4424) (Last updated: 07.11.2023) |
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Location |
County: | Trøndelag | Municipality: | Holtålen (5026) |
Map 1:50000: | Ålen (1720-4) | Map 1:250000: | Røros |
Coordinate system: | EU89-UTM Zone 32 |
East: | 635499 m. | North: | 6974449 m. |
Longitude: | 11.6642510 | Latitude: | 62.8748490 |
Show on map |
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Resource |
Resource Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Resource Subtype: | Copper | |
Element(s): | Cu Zn Kis Co |
Importance |
Raw material meaning: | Not Assessed (reg. 18.02.2015) |
Resources and production |
Activity: | Test mining | Reserves: | ||
Operating method: | Underground mining | Historical production: |
Operations |
From - To | Activity | Comments | |
1904 - 1906 | Test mining | Company/Institution :The Kjøli Mines Ltd. | |
1912 - 1912 | Test mining | Company/Institution :Verstrate & Flis | |
1997 - 1997 | Sampling | Company/Institution :NGU |
Mineralization |
Era: | Paleozoic | Period: | Ordovician | |
Genesis: | Volcex | Form: | Lens | |
Main texture: | Banded | Min. distribution: | Massive (>50 % ore minerals) |
Main grain size: | Fine grained (< 1 mm) | Main alteration: | No country rock alteration |
Strike/Dip: | 235 / 30 | Direction: | ||
Plunge: |
Stratigraphic classification of host rock |
Era: | Paleozoic | Period: | Ordovician |
Province: | Caledonides | |
Geotec.unit: | Røros Nappe Complex | |
Tectonic complex: | ||
Igneous complex: |
Group: | Aursund | Formation: | Røsjø |
Mineralogy |
Relationship | Mineral | Amount | |
Gangue mineral | Quartz | Major mineral (>10%) | |
Gangue mineral | Chlorite | Major mineral (>10%) | |
Gangue mineral | Amphibole | Major mineral (>10%) | |
Ore mineral | Pyrite | Major mineral (>10%) | |
Ore mineral | Pyrrhotite | Major mineral (>10%) | |
Ore mineral | Chalcopyrite | Major mineral (>10%) | |
Ore mineral | Galena | Subordinate mineral (1-10%) | |
Ore mineral | Sphalerite | Subordinate mineral (1-10%) | |
Ore mineral | Magnetite | Subordinate mineral (1-10%) |
Lithology: |
Relationship | Rock | Origin | |
Wall rock | Sandstone | Sedimentary Original rock :Greywacke |
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Metamorphic facies :Greenschist | |||
Wall rock | Phyllite | Sedimentary Original rock :Argillaceous sediment |
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Metamorphic facies :Greenschist |
Structures |
Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
Wall rock | Schistosity | Strike/Dip :185 / 15 | Post-mineralisation ;...Effect :Modifies | |
Wall rock | Foliation | Strike/Dip :190 / 50 | Post-mineralisation ;...Effect :Modifies |
Information(s) in free text format |
Free text |
Forekomsten er også kallt Midtgruben eller Jensgruben og ligger ca. 2 km nordøst for Kjøli gruve. Flere, mindre synker og skjerp som er vannfyllte finnes over en lengde på ca. 150 m på sørøstsida av en markert kolle som turistløypa mellom Kjølihytta og Stuggudalen går over. Forekomsten var i eldre tid drevet av Selbo Kobberverk, og mindre forsøksdrift ble gjort tidlig på 1900-tallet samtidig med driften av Kjøli gruver. Strøkretningen på bergartene ved hovedsynken er omtrent NNØ-SSV med fall ca. 30° mot VNV. Synken skal være drevet ca. 20 m nedover langs fallet (Aasgaard 1927). I SV-veggen av denne sees en ca. 20 cm mektig malmsone som ligger i fyllittisk skifer nær kontakten til oveliggende mer massiv, grågrønn meta-arenitt. To hovedtyper av sulfidmalm er påvist; Magnetkis-kobberkis breksjemalm med kvartsøyne og grønne bergartsfragmenter og fint båndet, massiv pyritt-kobberkis-sinkblende malm. Malmtypene opptrer i kontakt med hverandre. Massiv magnetkis-kobberkis malm er også blottet i andre små skjerp SV for synken. I følge Rui & Bakke (1975) kan tynne soner (2-25 cm) med sulfidmineralisering følges mer eller mindre kontinuerlig fra Midtgruben til Kjøli gruver. |
Photo(s) from the Deposit area: |
|
Bibliography: |
From NGU's Reference Archive: |
Aasgaard, Gunnar , 1927 |
Gruber og skjerp i kisdraget Øvre Guldal-Tydal. |
;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.129;1-196 pages |
Abstract: | |
The occurences described in this paper form a connection between th mining districts around Røros to the south and those around Meråker to the north. The occurences lie in mountain regions partly above the forest line. The list on page 12 contains the names of all known occurrences of whatever size within the district considered. Pl. I is a geological outline map of the district, compiled from maps in the Norwegian Geological Survey. In a geological summary on pages 18-27 it is shown that no pyrite occurrences of economic importance so far have been found in an eastern zone along the Swedish boundary where the rocks consist of hard schist with sparagmites, and igneous rocks. Neither have such occurrences been found in a zone of "Stuedalsskifer" and an other zone of "Gulaskifer" towards west, both indicated on the map. The occurrences of pyrite are chiefly found in connection with fine grained, light green or gravish, partly feldspar bearing schist and in connection with green schists, mostly fine grained hornblende schists. All these zones of schist gnereally strike north and dip west. The pyrite bearing schist lie on both sildes of a large zone of igneous rocks extending from Kjølifjell in the south over Hyllingen and Melshogna to Fangen in the Meråker district in the north. |
Fieldsamples |
Sample No. | Sample type | Miscellanrous | ||||
ST0222.02 | Dump |
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ST0222.03 | Dump |
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ST0222.04 | Dump |
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ST0222.05 | Dump |
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399812 | Dump |
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399813 | Dump |
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399814 | Dump |
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399815 | Dump |
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399816 | Dump |
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399817 | Dump |
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NB! All analyse values are shown at the end of the printout.: |
Name of Locality: Rundhaugen |
(Object Id: 10025 31,01,00) |
|
Location |
County: | Trøndelag | Municipality: | Holtålen (5026) |
Map 1:50000: | Ålen (1720-4) | Map 1:250000: | Røros |
Coordinate system: | EU89-UTM Zone 32 |
East: | 635389 m. | North: | 6974328 m. |
Longitude: | 11.6619790 | Latitude: | 62.8738010 |
Show on map |
|
Resource |
Resource Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Resource Subtype: | Copper | |
Element(s): | Cu Fe Kis |
Resources and production |
Activity: | Pitting | Reserves: | ||
Operating method: | Historical production: |
Mineralogy |
Relationship | Mineral | Amount | |
Gangue mineral | Amphibole | Major mineral (>10%) | |
Gangue mineral | Chlorite | Major mineral (>10%) | |
Ore mineral | Pyrite | Major mineral (>10%) | |
Ore mineral | Magnetite | Major mineral (>10%) | |
Ore mineral | Chalcopyrite | Subordinate mineral (1-10%) |
Lithology: |
Relationship | Rock | Origin | |
Wall rock | Phyllite | Sedimentary Original rock :Greywacke |
|
Metamorphic facies :Greenschist |
Structures |
Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
Wall rock | Schistosity | Strike/Dip :238 / 50 | Post-mineralisation ;...Effect :Modifies | |
Wall rock | Fold axis | Dir./Plunge :325 / 25 | Post-mineralisation ;...Effect :Modifies |
Information(s) in free text format |
Free text |
Små, vannfyllte skjerp finnes NØ for et lite tjern og ca. 150 m SV for hovedsynken. Berggrunnen domineres av fyllittisk skifer, men malmsonen er ikke blottet. På tippen sees massiv magnetitt med tynne bånd og disseminasjon av pyritt. |
Bibliography: |
From NGU's Reference Archive: |
Aasgaard, Gunnar , 1927 |
Gruber og skjerp i kisdraget Øvre Guldal-Tydal. |
;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.129;1-196 pages |
Abstract: | |
The occurences described in this paper form a connection between th mining districts around Røros to the south and those around Meråker to the north. The occurences lie in mountain regions partly above the forest line. The list on page 12 contains the names of all known occurrences of whatever size within the district considered. Pl. I is a geological outline map of the district, compiled from maps in the Norwegian Geological Survey. In a geological summary on pages 18-27 it is shown that no pyrite occurrences of economic importance so far have been found in an eastern zone along the Swedish boundary where the rocks consist of hard schist with sparagmites, and igneous rocks. Neither have such occurrences been found in a zone of "Stuedalsskifer" and an other zone of "Gulaskifer" towards west, both indicated on the map. The occurrences of pyrite are chiefly found in connection with fine grained, light green or gravish, partly feldspar bearing schist and in connection with green schists, mostly fine grained hornblende schists. All these zones of schist gnereally strike north and dip west. The pyrite bearing schist lie on both sildes of a large zone of igneous rocks extending from Kjølifjell in the south over Hyllingen and Melshogna to Fangen in the Meråker district in the north. |
Fieldsamples |
Sample No. | Sample type | Miscellanrous | ||||
ST0222.01 | Dump |
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NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
from |
Deposit Area 5026 - 031 Rundhaugen |
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# |
ST0222.01 | Dump | 8588 | 112 | 21 | 299 | 7 | .8 | 144.0 |
ST0222.02 | Dump | 42115 | 9184 | 680 | 269 | 24 | 17.4 | 1317.0 |
ST0222.03 | Dump | 36443 | 21519 | 1881 | 219 | 16 | 15.1 | 203.0 |
ST0222.04 | Dump | 41873 | 11847 | 561 | 61 | 18 | 13.5 | 457.0 |
ST0222.05 | Dump | 31171 | 3723 | 475 | 286 | 19 | 13.3 | 580.0 |
399812 | Dump | 16000 | 5104 | 655 | 227 | 17 | 5.6 | 312.0 |
399813 | Dump | 1296 | 53000 | 1497 | 266 | 67 | 8.7 | 341.0 |
399814 | Dump | 15000 | 35000 | 472 | 175 | 28 | 6.5 | 142.0 |
399815 | Dump | 28000 | 6597 | 452 | 293 | 72 | 7.1 | 131.0 |
399816 | Dump | 40000 | 1433 | 383 | 316 | 23 | 9.9 | 104.0 |
399817 | Dump | 9830 | 447 | 46 | 57 | 7 | 1.8 | 60.0 |
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Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sb* | Bi* | S% |
ST0222.01 | 3.0 | 2.0 | 26 | -.2 | 3 | 3.00 | -3 | 44 | 3.05 |
ST0222.02 | 1.0 | -1.0 | 107 | 30.9 | 2 | 1.00 | 15 | 69 | 32.07 |
ST0222.03 | 1.0 | 1.0 | 180 | 67.8 | 7 | -1.00 | 6 | 109 | 44.18 |
ST0222.04 | 1.0 | 1.0 | 49 | 34.3 | 18 | 3.00 | 17 | 27 | 10.76 |
ST0222.05 | 1.0 | 2.0 | 111 | 10.6 | 7 | 1.00 | 10 | 45 | 33.62 |
399812 | 162 | 13.3 | 1 | 11.00 | 3 | 37 | |||
399813 | 195 | 87.9 | 12 | 16.00 | 3 | 75 | |||
399814 | 193 | 70.9 | 10 | 6.00 | 7 | 12 | |||
399815 | 52 | 44.9 | 13 | 14.00 | 3 | 3 | |||
399816 | 193 | 3.5 | 1 | 12.00 | 3 | 3 | |||
399817 | 12 | .1 | 1 | 7.00 | 3 | 3 |
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Sample No. | V* | Cr* | Mn* | Fe% | Th* | U* | W* | Sr* | La* |
ST0222.01 | 17 | 6 | 233 | 35.52 | 4.00 | -8.00 | -2 | 1.0 | -1.00 |
ST0222.02 | 12 | 8 | 197 | 29.50 | 3.00 | -8.00 | -2 | 1.0 | 2.00 |
ST0222.03 | 6 | 16 | 282 | 29.94 | 3.00 | -8.00 | -2 | 7.0 | -1.00 |
ST0222.04 | 43 | 50 | 336 | 15.92 | 3.00 | -8.00 | -2 | 3.0 | 5.00 |
ST0222.05 | 14 | 5 | 178 | 27.86 | 3.00 | -8.00 | -2 | 2.0 | 1.00 |
399812 | 1 | 31 | 299 | 10.00 | 9.0 | 0.50 | |||
399813 | 5 | 61 | 193 | 10.00 | 4.0 | 1.00 | |||
399814 | 22 | 105 | 448 | 10.00 | 3.0 | 2.00 | |||
399815 | 29 | 51 | 312 | 20.30 | 11.0 | 6.00 | |||
399816 | 9 | 100 | 93 | 10.00 | 2.0 | 0.50 | |||
399817 | 9 | 29 | 219 | 10.00 | 2.0 | 0.50 |
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Sample No. | B* | Ti* | |||||||
ST0222.01 | -3 | ||||||||
ST0222.02 | -3 | ||||||||
ST0222.03 | -3 | ||||||||
ST0222.04 | -3 | ||||||||
ST0222.05 | -3 | ||||||||
399812 | 30 | ||||||||
399813 | 120 | ||||||||
399814 | 180 | ||||||||
399815 | 240 | ||||||||
399816 | 30 | ||||||||
399817 | 120 |
The fact sheet was created on 29.03.2024 |
Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
Copyright © 2024 Geological Survey of Norway |