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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 437 - 014 | |||||
| (Last updated 25.apr.2002) | |||||
Name of Deposit Area : Søgardsvangen |
| (Object Id : 0437,014,00,00) |
| Location |
| County : | Hedmark (04) | Municipality : | Tynset (0437) |
| Map 1:50000: | Kvikneskogen (1619-4) | Map 1:250000: | Røros |
| Marking point: | Longitude: | 10.3528400 | Latitude: | 62.3453490 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 570051 m. | Y-coord: | 6913385 m. |
|
|
| Commodity |
| Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Copper | |
| Element(s): | Cu Kis |
| Production |
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: | 50 m3 |
| Importance |
| Public: | Not Assessed (reg. 18.02.2015) |
| Economical: | Not classified/evaluated |
Operations |
| From - To | Activity | Comments | |
| 1998 - 1998 | Sampling | Company/Institution :NGU |
Mineralization |
| Era: | Proterozoic | Period: | Neoproterozoic | |
| Dating: | Method: | |||
| 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: | 25 / 35 | Direction: | ||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Proterozoic | Period: | Neoproterozoic |
| Province: | Caledonides | |
| Geotec.unit: | Trondheim Nappe Complex | |
| Tectonic complex: | Gula Nappe | |
| Igneous complex: |
| Group: | Gula | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Amphibole | Major mineral (>10%) | |
| Ore mineral | Pyrrhotite | Major mineral (>10%) | |
| Ore mineral | Magnetite | Accessory mineral (<1%) | |
| Ore mineral | Chalcopyrite | Accessory mineral (<1%) |
Lithology: |
| Relationship | Rock | Origin | |
| Wall rock | Mica schist | Sedimentary Original rock :Greywacke |
|
| Metamorphic facies :Amphibolite | |||
| Wall rock | Amphibolite | Extrusive Original rock :Basalt |
|
| Metamorphic facies :Amphibolite |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Host rock | Mineral banding | Strike/Dip :25 / 25 | Syn-mineralisation ;...Effect :Controls | |
| Wall rock | Foliation | Strike/Dip :40 / 10 | Post-mineralisation ;...Effect :Modifies |
Information(s) in free text format |
| Free text |
| Skjerpet ligger på vestsida av en liten åsrygg, 400 m vest for Søgardsvangen som er ei aktiv seter. Ei vannfyllt grop på 3 x 2 m med en vegg på opptil 3 m er utsprengt og en 50 m3 stor tipp ligger i skråningen nedenfor, vest for skjerpet. Malmsonen er 1 til 2.5 m mektig og består av flere bånd med massiv magnetkis, som er noen cm brede, i veksling med kvarts- og amfibol-rikere bånd. Amfibolen er dels grovkornet og nekformet. Sulfidbåndingen har strøk 25°/35° og kan følges få meter nordnordvestover. Malmsona overlagres av finkornet amfibolitt med foliasjon 40°/10°. Under denne finnes forvitra glimmerskifer. |
| Photo(s) from the Deposit area: |
|
Bibliography: |
| From NGU's Reference Archive: |
| 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. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| HE0111.01 | Bedrock |
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| HE0111.02 | Dump |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 437 - 014 Søgardsvangen |
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# |
| HE0111.01 | Bedrock | 439 | 17 | 47 | 45 | 116 | .7 | 35.0 |
| HE0111.02 | Dump | 525 | 51 | 164 | 33 | 89 | .3 | 45.0 |
| ------------------ |
| Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sb* | Bi* | S% |
| HE0111.01 | 7.0 | 19.0 | 307 | .1 | 19 | 17.00 | 3 | 2 | 18.90 |
| HE0111.02 | 7.0 | 12.0 | 7 | .2 | 101 | 20.00 | 6 | 2 | 14.00 |
| ------------------ |
| Sample No. | V* | Cr* | Mn* | Fe% | Th* | U* | W* | Sr* | La* |
| HE0111.01 | 21 | 12 | 1566 | 30.73 | 6.00 | 15.00 | 1 | 47.0 | 16.00 |
| HE0111.02 | 122 | 18 | 1124 | 24.93 | 7.00 | 4.00 | 1 | 88.0 | 19.00 |
| ------------------ |
| Sample No. | B* | ||||||||
| HE0111.01 | 2 | ||||||||
| HE0111.02 | 3 |
| The fact sheet was created on 18.05.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |