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English version | ||||
| MALMDATABASEN | |||||
| Forekomstområde 1648 - 011 | |||||
| (Sist oppdatert 27.jan.2023) | |||||
Navn på deposit area : Bjørndal grube |
| (Objekt Id : 1648,011,00,00) |
| Lokalisering |
| Fylke : | Sør-Trøndelag (16) | Kommune : | Midtre Gauldal (1648) |
| Kart 1:50000: | Budal (1620-4) | Kart 1:250000: | Røros |
| Markeringspunkt: | Lengdegrad: | 10.3724080 | Breddegrad: | 62.8211620 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-koord: | 569936 m. | Y-koord: | 6966409 m. |
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| Materialtype |
| Hovedtype: | Basemetaller (Cu,Zn,Pb,Fe sulfider,As,Sb,Bi,Sn) | Subtype: | Kobber | |
| Element(s): | Cu Zn Kis |
| Production |
| Activity: | Gruvedrift | Reserves: | ||
| Prod. method: | Dag- og underjordsdrift | Production: | ||
| Prod. status: | Volume of dump: | 3000 m3 |
| Betydning |
| Offentlig: | Not Assessed (reg. 18.02.2015) |
| Economical: | Ikke vurdert |
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: | ||
| Dating: | Method: | |||
| Genesis: | Vulkeks | Form: | Lag | |
| Main texture: | Min. distribution: | Massiv |
| Main grain size: | Middelskornet (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 |
|
| 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 |
Opplysning(er) i fritekstformat |
| Fri tekst |
| Bjørndal Gruber, i nyere tid mest kjent som Håkkådalsgruva, var i drift 1658-1702. Fram til 1677 var det Innsetverket som utvant kobbermalm fra gruva, mens det videre ble drevet av Det Buedalske Kobberverk. Det var ingen smeltehytte i nærheten, og malmen ble fraktet til en smeltehytte i Endalen, ca 4-5 km gjennom Bjørndalskaret. I 1720-1724 ble det gjort nye forsøk på å få i gang driften igjen, men gruva lå brakk i ytterligere 100 år. I 1826 ble derimot ny prøvedrift utført, og gruva var igjen i drift i en tiårsperiode fra 1835-1845. I den sørligste enden kan man se av sjersant Gjesdals kart i målestokk 1:1000 at the har vært hestevandring for å tømme gruva for vann etter vintersesongen. I nord finnes to store tipphauger. Gruvehullene er pr i dag vannfyllt og det er ingen som vet eksakt hvor dype gruvene er. Mineraliseringene i området følger lagdelingen i berget, og består av finfordelt pyritt, magnetkis, mindre mengder kobberkis, bittesmå mengder arsenkis og noe sinkblende i svartskifre og grafittrike kvartsitter. |
| Bilde(r) fra forekomstområdet: |
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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. |
| Faktaarket ble generert 13.06.2026 |
| Spørsmål eller kommentarer vedrørende faktaarket kan mailes til: ressursdatabaser@ngu.no |
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