(Last updated: 27.01.2023)
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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Occurence 5027 - 011 Bjørndal grube | |||||
| (Object Id: 4286) (Last updated: 27.01.2023) |
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| Location |
| County: | Trøndelag | Municipality: | Midtre Gauldal (5027) |
| Map 1:50000: | Budal (1620-4) | Map 1:250000: | Røros |
| Coordinate system: | EU89-UTM Zone 32 |
| East: | 569936 m. | North: | 6966409 m. |
| Longitude: | 10.3724080 | Latitude: | 62.8211620 |
| 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 |
| Importance |
| Raw material meaning: | Not Assessed (reg. 18.02.2015) |
| Resources and production |
| Activity: | Mining | Reserves: | ||
| Operating method: | Open pit and underground mining | Historical production: |
Operations |
| From - To | Activity | Comments | |
| 1658 - 1677 | Regular production | Company/Institution :Innsetverket | |
| 1677 - 1702 | Regular production | Company/Institution :Det Buedalske Kobberverk | |
| 1720 - 1724 | Test mining | Forsøk på å få igang drift igjen, Trondhjemskjøpmann Thomas Møllmann. | |
| 1826 - 1826 | Test mining | ||
| 1835 - 1845 | Regular production | ||
| 1876 - 1876 | Sampling |
Mineralization |
| Era: | Paleozoic | Period: | ||
| Genesis: | Volcex | Form: | Layer | |
| Main texture: | Min. distribution: | Massive (>50 % ore minerals) |
| Main grain size: | Medium grained (1-3 mm) | Main alteration: |
| Strike/Dip: | 360 / 40 | Direction: | ||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Paleozoic | Period: |
| Province: | Caledonides | |
| Geotec.unit: | Trondheim Nappe Complex | |
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Gulagruppen | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Ore mineral | Pyrite | Major mineral (>10%) | |
| Ore mineral | Pyrrhotite | Major mineral (>10%) | |
| Ore mineral | Chalcopyrite | Subordinate mineral (1-10%) | |
| Ore mineral | Sphalerite | Subordinate mineral (1-10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Wall rock | Glimmerskifer | Sedimentary Original rock :Greywacke |
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| Metamorphic facies :Amphibolite | |||
| Wall rock | Grafittisk kvartsitt | Sedimentary | |
| Metamorphic facies :Amphibolite |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Wall rock | Foliation | Strike/Dip :360 / 40 | Post-mineralisation ;...Effect :Modifies |
Information(s) in free text format |
| Free text |
| Deposit types in the area are generally of a low grade, consisting of conformable layers and disseminations of pyrite, pyrrhotite, minor chalcopyrite and accessory arsenopyrite and sphalerite in black schists and quartzites. This mine was run by The Innset Works 1658 to 1677, and then the Budalen Copper Works run this mine in 1677-1702. New attempts of running the mine where performed in 1720-1724, but activities didn’t increase until the demand of sulphur increased during the 19th century and the mine was run a decade from 1835-1845. The mine shafts are now filled with water, and no one really knows how deep they are. Waste deposits are found nearby the openings. |
| Photo(s) from the Deposit area: |
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Bibliography: |
| From NGU's Reference Archive: |
| Bjørndals gruber. Hovedgruva 1:1 000 |
| ;Norges geologiske undersøkelse;KART;Bergarkivet; No.K 22 |
| Abstract: | |
| Kopi av kart også merket K 2562 |
| Bjørndalsgruvea i Soknedal. Budals kopperverks hovedgruve M 1:1000 |
| ;Norges geologiske undersøkelse;KART;Bergarkivet; No.K 2562;1 kart pages |
| Abstract: | |
| Samme kart som K 22 |
| Egge, A. , 1906 |
| Kisforekomster i Soknedalen, Høgseggen, Sundseth, Bjørndalsgruven. |
| ;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 443;7 pages |
| Abstract: | |
| Lok. Nr. 30123, 30124. Det er gjort befaring av følgende kisforekomster: I. Høgseggen, II. Sundseth og III Bjørndalsgruben. Av disse er Bjørndalsgruben den mest intressante og rapporten inneholder beskrivelse. |
| Nilsen, Odd , 1978 |
| Caledonian sulphide deposits and minor iron-formations from the southern Trondheim region, Norway. |
| ;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.340;35-85 + k pages |
| Abstract: | |
| Within the southern and central parts of the Trondheim region of the Norwegian Caledonides a great number of small, stratabound cupriferous pyrite deposits are confined to mafic metavolcanics of the Gula, Støren and Fundsjø Groups of the Lower Palaeozoic succession. The deposits occuring within, or in close contact with the metavolcanics are characterized by their association with minor manganiferous oxide/silicate iron-formations - better known as "vasskis" ore type - within the metamorphic low-grade areas. The iron-fprmations of the metamorphic higher grade terrains on the other hand, which are extensively developed within the Gula Group, are mostly of a pyrrhotitic sulphide/silicate type and sulphurization processes are thought to have played an important role during the metamorphism. The pyrite deposits occurring adjacent to the metavolcanics bear no relationship to the iron-formations. They are embedded in pelitic, often carbonaceous assemblages (Gula Group) or within tuffitic members of the volcanogene Støren Group, and they are thought to represent re-sedimented (reworked) deposits. The pyrite deposits display varying degree of metamorphic reconstitution and a tectonic control has apparently determined their disc- or ruler-shaped morphology. |
| Nilsen, O. , 1977 |
| Caledonian sulphide deposits and minor iron-formations from the southern Trondheim region, Norway. |
| ;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 6580;8 pages |
| Abstract: | |
| Within the southern and sentral parts of the Trondheim region of the Norwegian Caledonides a great number of a small, stratabound cupriferous pyrite deposits are confined to mafic motavolcanics of the Gula, Støren and Fundsjø Groups of the Lower Palacozoic succession. The deposits occurring within, or in close contact with the metavolcanics are characterized by their assosiation with minor manganiferous oxide/silicate iron-formations - better known as the "vasskis" ore type - within the metamorphic low-grade areas. The iron-formations of the metamorphic higher grade terraine on the other hand wich are extensively developed within the Gula Group, are mostly of a pyrrho- titic sulphide/silicate type and sulphurization processes are thought to have layed an important role during their metamorphism.The pyrite deposits occur- ring adjacent to the metavulcanics bear no relationship to the iron-formations They are embedded in politic, often carbonaccous assembles (Gula Group) or within tuffitic members of the volcanogene Støren Group, and they are thought to represent re-sedimented (rework) deposits. The pyrite deposits display varying degrees of metamorphic reconstitution and a tectonic control has apparently determined their disc- or ruler-shaped morphology. |
| References not to be found in NGU's Reference Archive.: |
| Nilsen, Odd (1991) The bedrock geology of the Budalen area, S. Trøndelag, Norway. I Espelund, A. (red.) Bloomery Ironmaking during 2000 years. Seminar in Budalen, Sør-Trøndelag, Norway. August 26th-30th 1991. Metallurgisk institutt, Universitetet i Trondheim NTH ISBN 82-992434-0-8 s. 8-16. |
| Storrø, P. O. (1995) Håkkådalsgruva Bjørndal grube. Kulturkontoret Midtre Gauldal. |
| The fact sheet was created on 27.04.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |