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Prospect 0 - 000 FEIL | |||||
(Object Id: ) (Last updated: 16.03.2017) |
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Location |
County: | Municipality: | Mangler () |
Map 1:50000: | Tynset (1619-1) | Map 1:250000: | Røros |
Coordinate system: | UTM-Zone 33 - EUREF89/WGS84 |
East: | 594120 m. | North: | 6915790 m. |
Longitude: | 10.8202210 | Latitude: | 62.3619630 |
Show on map |
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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. 20.04.2015) |
Resources and production |
Activity: | Pitting | Reserves: | ||
Operating method: | Historical production: |
Products |
Element/product | Crude ore grade or quality | Reg. date | |
Cu | 10.06.1998 | ||
Kis | 10.06.1998 | ||
Zn | 10.06.1998 |
Operations |
From - To | Activity | Comments | |
Pitting | |||
1986 - 1988 | Geology | Company/Institution :Terje Bjerkgård, University of Oslo | |
1987 - 1987 | Detail mapping | Company/Institution :Terje Bjerkgård, University of Oslo | |
1998 - 1998 | Sampling | Company/Institution :NGU |
Mineralization |
Era: | Paleozoic | Period: | Ordovician | |
Genesis: | Volcex | Form: | Layer | |
Main texture: | Banded | Min. distribution: | Massive (>50 % ore minerals) |
Main grain size: | Fine grained (< 1 mm) | Main alteration: | Chloritisation |
Strike/Dip: | Direction: | |||
Plunge: |
Stratigraphic classification of host rock |
Era: | Paleozoic | Period: | Ordovician |
Province: | Caledonides | |
Geotec.unit: | Trondheim Nappe Complex | |
Tectonic complex: | Meråker Nappe | |
Igneous complex: |
Group: | Fundsjø Group | Formation: |
Mineralogy |
Relationship | Mineral | Amount | |
Gangue mineral | Quartz | Major mineral (>10%) | |
Gangue mineral | Amphibole | Subordinate mineral (1-10%) | |
Gangue mineral | Chlorite | Subordinate mineral (1-10%) | |
Gangue mineral | Sericite | Subordinate mineral (1-10%) | |
Ore mineral | Sphalerite | Major mineral (>10%) | |
Ore mineral | Pyrite | Major mineral (>10%) | |
Ore mineral | Chalcopyrite | Subordinate mineral (1-10%) | |
Ore mineral | Marcasite | Accessory mineral (<1%) | |
Ore mineral | Covellite | Accessory mineral (<1%) | |
Ore mineral | Molybdenite | Accessory mineral (<1%) | |
Ore mineral | Galena | Accessory mineral (<1%) | |
Ore mineral | Pyrrhotite | Accessory mineral (<1%) | |
Ore mineral | Gold | Accessory mineral (<1%) |
Lithology: |
Relationship | Rock | Origin | |
Wall rock | Chlorite schist | Sedimentary Original rock :Tuffite |
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Metamorphic facies :Greenschist |
Structures |
Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
Wall rock | Foliation | Strike/Dip :40 / 56 | Post-mineralisation ;...Effect :Controls |
Information(s) in free text format |
Free text |
Description (from Bjerkgård 1989): The Vardtjønn area is the southernmost and in extent the largest of the mineralized area in the Vingelen District (the others being Vingelen Mine and Nonsvola area). The lithologies in the area comprises felsic metavolcanites of both volcanic and volcanoclastic origin. A number of small post-tectonic trondhjemite bodies and lenses of graphite schist is common. In the west of the area is a larger body of metagabbro. There are eight smaller showings in the area, of which five is associated with a major alteration zone of quartz-sericite schist. This zone has a length of at least 1.2 km and a width of up to 130 m. The Nedre Vardtjønnbekken showing is situated in a thick unit of banded, tuffitic greenschist to the southeast of the unit of felsic metavolcanics. A small hole marks the working, but is without any exposures. The mineralization is however exposed in the creek, where a 70 cm thick zone is found in the greenschist. The zone consists of a 20 cm massive, finegrained and banded pyrite-sphalerite ore, with disseminated pyrite in quartz in the hangingwall and disseminated, fine grained pyrite and sphalerite (c. 40 % sulfides) in chlorite-quartz schist in the footwall followed by chlorite-sericite schist with mainly pyrrhotite further down. Sphalerite and pyrite are the main sulfides, while chalcopyrite is subordinate, typically associated with the pyrite-rich bands. Pyrrhotite, gold, covellite, molybdenite and marcasite is accessory phases in the massive zone, while pyrrhotite, molybdenite and galena is accessories in the richer disseminated zone. Non-sulfides in the massive ore is quartz, chlorite and clinoamphibole. Two analyses of the massive ore yielded 0.5, 1.3 % Cu, 1.5,9.1 % Zn, 0.1-0.3 % Pb, 26, 27 ppm Ag and 9.6, 11.0 ppm Au. |
Bibliography: |
From NGU's Reference Archive: |
Bjerkgård, Terje , 1989 |
Regionalgeologiske undersøkelser i Vingelenfeltet, Nord-Østerdalen, i det sørlige Trondheimsfeltet, med henblikk på sulfidmineraliseringene. |
;UiO Geologisk fellesråd;AVHANDLING |
Fieldsamples |
Sample No. | Sample type | Miscellanrous | ||||
HE0083.01 | Bedrock |
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HE0083.02 | Bedrock |
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NB! All analyse values are shown at the end of the printout.: |
The fact sheet was created on 02.05.2024 |
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