(Last updated: 01.07.1998)
|
|
Norsk versjon | ||||
| THE ???? DATABASE | |||||
| Occurence 0 - 000 FEIL | |||||
| (Object Id: ) (Last updated: 01.07.1998) |
|||||
|
|
| Location |
| County: | Municipality: | Mangler () |
| Map 1:50000: | Einunna (1519-1) | Map 1:250000: | Røros |
| Coordinate system: | UTM-Zone 33 - EUREF89/WGS84 |
| East: | 541470 m. | North: | 6911220 m. |
| Longitude: | 9.8019780 | Latitude: | 62.3305320 |
| Show on map |
|
|
| Resource |
| Resource Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Resource Subtype: | Sulphides | |
| Element(s): | Kis |
| Importance |
| Raw material meaning: | Not Assessed (reg. 18.02.2015) |
| Resources and production |
| Activity: | Pitting | Reserves: | ||
| Operating method: | Historical production: |
Operations |
| From - To | Activity | Comments | |
| 1965 - 1965 | Geophysics | Company/Institution :NGU | |
| 1966 - 1966 | Geophysics | Company/Institution :Folldal Verk A/S | |
| 1997 - 1997 | Sampling | Company/Institution :NGU-Malmreg. |
Mineralization |
| Genesis: | Volcex | Form: | ||
| Main texture: | Banded | Min. distribution: | Disseminated (<20 % ore minerals) |
| Main grain size: | Fine grained (< 1 mm) | Main alteration: | Sericitisation |
| Strike/Dip: | 60 / 70 | Direction: | ||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Period: |
| Province: | Caledonides | |
| Geotec.unit: | Trondheim Nappe Complex | |
| Tectonic complex: | Støren Nappe | |
| Igneous complex: |
| Group: | Støren | Formation: | Elgsjø |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Sericite | Subordinate mineral (1-10%) | |
| Gangue mineral | Feldspar | Subordinate mineral (1-10%) | |
| Gangue mineral | Amphibole | Subordinate mineral (1-10%) | |
| Ore mineral | Pyrite | Major mineral (>10%) | |
| Ore mineral | Pyrrhotite | Subordinate mineral (1-10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Quartzite | Sedimentary Original rock :Exhalite |
|
| Metamorphic facies :Greenschist | |||
| Wall rock | Banded quartzite | Sedimentary Original rock :Exhalite |
|
| Metamorphic facies :Greenschist | |||
| Wall rock | Amphibole schist | Extrusive Original rock :Basalt |
|
| Metamorphic facies :Greenschist |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Host rock | Foliation | Strike/Dip :60 / 70 | Post-mineralisation ;...Effect :None |
Information(s) in free text format |
| Description |
| Hovedskjerpet: Lite skjerp (med merkebolt), nærmest uten tipp, 30 m sør for myr og 20 m vest for bekk. Mineraliseringen består av 40 cm mektig svovelkis-disseminert hvit kvartsitt (kvartskeratofyr?) med cm-mektige bånd av semimassiv svovelkis (prøve 01). Svovelkisen har kornstørrelse på 0.5-1 mm. Bånding, med rike og fattige bånd i cm-skala. Over og under mineraliseringen er det finkornig amfibolskifer med litt magnetkis-svovelkis-disseminasjon helt nær mineraliseringen. Få meter under den stratabundne mineraliseringen er det blottet båndet kvartsitt med glimmerlag. Skifrighet: 60/70. Det er avblottet litt 90 m mot SV. Her sees bare jernhatt. Skjerp 1: Lite skjerp (<1 m3 tipp) i omlag samme nivå. Bare rusten, lys glimmerskifer og lys kloritt-amfibol (uorienterte, store nåler)-glimmerskifer med svak magnetkis-svovelkis-disseminasjon. |
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 | ||||
| ST0362.01 | Bedrock |
|
| NB! All analyse values are shown at the end of the printout.: |
Name of Locality: |
| (Object Id: 10112 38,01,00) |
|
|
| Location |
| County: | Municipality: | Mangler () |
| Map 1:50000: | Einunna (1519-1) | Map 1:250000: | Røros |
| Coordinate system: | UTM-Zone 33 - EUREF89/WGS84 |
| East: | 541540 m. | North: | 6911350 m. |
| Longitude: | 9.8033600 | Latitude: | 62.3316910 |
| Show on map |
|
|
| Resource |
| Resource Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Resource Subtype: | Sulphides | |
| Element(s): | Kis |
| The fact sheet was created on 02.05.2024 |
Copyright © 2024 Geological Survey of Norway |