Norsk versjon | |||||
THE ORE DATABASE | |||||
Deposit Area 437 - 059 | |||||
(Last updated 21.sep.2007) |
Name of Deposit Area : Bjørkåsen |
(Object Id : 0437,059,00,00) |
Location |
County : | Hedmark (04) | Municipality : | Tynset (0437) |
Map 1:50000: | Kvikneskogen (1619-4) | Map 1:250000: | Røros |
Marking point: | Longitude: | 10.6051520 | Latitude: | 62.2756400 |
EU89-UTM Zone 32 | (Coordinates IS confirmed) |
X-coord: | 583306 m. | Y-coord: | 6905920 m. |
|
Commodity |
Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Zinc | |
Element(s): | Kis Zn Cu Pb |
Production |
Activity: | Pitting | Reserves: | ||
Prod. method: | Production: | |||
Prod. status: | Volume of dump: | 10 m3 |
Importance |
Public: | Little Importance (reg. 18.02.2015) |
Economical: | Minor interest |
Operations |
From - To | Activity | Comments | |
Pitting | Company/Institution :? | ||
1998 - 1998 | Sampling | Company/Institution :NGU mineralressurser |
Mineralization |
Era: | Paleozoic | Period: | Ordovician | |
Dating: | Method: | |||
Genesis: | Volcex | Form: | Irregular | |
Main texture: | Foliated | Min. distribution: | Semi-massive (20-50 % ore minerals) |
Main grain size: | Medium grained (1-3 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: | ||
Igneous complex: |
Group: | Fundsjø Group | Formation: |
Mineralogy |
Relationship | Mineral | Amount | |
Gangue mineral | Chlorite | Major mineral (>10%) | |
Gangue mineral | Talc | Subordinate mineral (1-10%) | |
Gangue mineral | Calcite | Subordinate mineral (1-10%) | |
Gangue mineral | Quartz | Subordinate mineral (1-10%) | |
Ore mineral | Sphalerite | Major mineral (>10%) | |
Ore mineral | Galena | Subordinate mineral (1-10%) | |
Ore mineral | Chalcopyrite | Subordinate mineral (1-10%) | |
Ore mineral | Pyrite | Subordinate mineral (1-10%) | |
Ore mineral | Pyrrhotite | Subordinate mineral (1-10%) |
Lithology: |
Relationship | Rock | Origin | |
Wall rock | Quartz keratophyre | Extrusive Original rock :Rhyodacite |
|
Metamorphic facies :Greenschist |
Structures |
Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
Wall rock | Foliation | Strike/Dip :203 / 67 | Post-mineralisation ;...Effect :Controls | |
Wall rock | Fold axis | Dir./Plunge :246 / 77 | Post-mineralisation ;...Effect :Modifies |
Information(s) in free text format |
Free text |
Skjerpet ligger i vestkanten av stort åpent myrområde, omtrent 700 m NV for Liveslsætra og i strøkretningen omtrent 400 m nord for Liveslsætra skjerp (HE0163). Skjerpet er en røskegrøft ca. 6 m lang i strøkretning, 2 m bred og inntil 70 cm dyp. Mineraliseringen består av slirer og bånd inntil 4-5 cm brede dominert av sinkblende med mindre mengder pyritt +/- magnetkis +/- blyglans og opptrer i lys grå talkholdig klorittskifer, dels med slirer og linser av kalsitt. Forøvrig opptrer ujevnt fordelte elongerte aggregater av kobberkis, dels også assosiert med sinkblende. Den minerlaiserte sonen er ca. 1 m mektig og er kraftig, uregelmessig foldet. I ligg opptrer mørk kloritt-sericittholdig skifer, mens i heng er det mørk grafittholdig keratofyr(?) Den mineraliserte sonen kan følges ca. 50 m nordover langs strøket og går over i svakt pyrittimpregnert kvarts-sericittskifer. Sidebergart er kvarts-keratofyr/rhyodacitt. |
Fieldsamples |
Sample No. | Sample type | Miscellanrous | ||||
HE0164.01 | Dump |
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HE0164.02 | Dump |
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HE0164.03 | Dump |
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NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
from |
Deposit Area 437 - 059 Bjørkåsen |
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# |
HE0164.01 | Dump | 12500 | 99999 | 24682 | -1 | 2 | 197.1 | 146.0 |
HE0164.02 | Dump | 9307 | 99999 | 23897 | -1 | 5 | 181.0 | 122.0 |
HE0164.03 | Dump | 22300 | 40151 | 6126 | -1 | 7 | 57.1 | 67.0 |
------------------ |
Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sb* | Bi* | V* |
HE0164.01 | 2.0 | 4.0 | 76 | 1912.0 | 28 | 185.00 | 115 | 35 | 2 |
HE0164.02 | 2.0 | 4.0 | 76 | 1475.5 | 41 | 93.00 | 113 | 129 | 2 |
HE0164.03 | 1.0 | 2.0 | 17 | 260.5 | 55 | 75.00 | 7 | 17 | 1 |
------------------ |
Sample No. | Cr* | Mn* | Fe% | Th* | U* | W* | Sr* | La* | B* |
HE0164.01 | -1 | 397 | 6.33 | 3.00 | -8.00 | -2 | 5.0 | 6.00 | -3 |
HE0164.02 | -1 | 375 | 4.60 | 4.00 | -8.00 | -2 | 10.0 | 8.00 | 5 |
HE0164.03 | -1 | 147 | 3.45 | 4.00 | -8.00 | -2 | 7.0 | 8.00 | -3 |
The fact sheet was created on 18.05.2024 |
Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
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