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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 1663 - 009 | |||||
| (Last updated 16.apr.2020) | |||||
Name of Deposit Area : Bjørnberget |
| (Object Id : 1663,009,00,00) |
| Location |
| County : | Sør-Trøndelag (16) | Municipality : | Malvik (1663) |
| Map 1:50000: | Trondheim (1621-4) | Map 1:250000: | Trondheim |
| Marking point: | Longitude: | 10.6850250 | Latitude: | 63.3910040 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 584199 m. | Y-coord: | 7030262 m. |
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| Commodity |
| Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Sulphides | |
| Element(s): | Kis |
| Production |
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: |
| Importance |
| Public: | Not Assessed (reg. 18.02.2015) |
| Economical: | Minor interest , (Confirmed 16.apr.2020 by Jan Sverre Sandstad) |
Mineralization |
| Era: | Paleozoic | Period: | Ordovician | |
| Dating: | Method: | |||
| Genesis: | Sedex | Form: | ||
| Main texture: | Structureless | Min. distribution: | Disseminated (<20 % ore minerals) |
| Main grain size: | Fine grained (< 1 mm) | Main alteration: | Chloritisation |
| Strike/Dip: | 30 / 10 | Direction: | ||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Paleozoic | Period: | Ordovician |
| Province: | Caledonides | |
| Geotec.unit: | Trondheim Nappe Complex | |
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Formation: | Herjuan formation |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Mica | Subordinate mineral (1-10%) | |
| Ore mineral | Pyrrhotite | Major mineral (>10%) | |
| Ore mineral | Pyrite | Major mineral (>10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Quartz phyllite | Sedimentary Original rock :Argillaceous sediment |
|
| Metamorphic facies :Greenschist |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Host rock | Schistosity | Strike/Dip :30 / 10 | Post-mineralisation ;...Effect :Modifies |
Information(s) in free text format |
| Free text |
| Bjørnberget ligger sør for Damvatnet. En 8 m lang, 2-3 m bred og opptil 2 m høy stoll er drevet mot sørøst (135°) i bunnen av brattskrenten på nordsida av Bjørnberget. Svak disseminasjon av magnetkis og pyritt finnes i mørk, skjærdeformert kvartsfyllitt med enkelte kvartslinser i cm-skala. Den tilnærmet flattliggende sonen kan følges i minst 30 m langs skrenten. Skrenten er gulfarget av svovelutfelling over en bredde på 7-8 m, men det er lite sulfider å se i fastfjell. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| JS97012 | Dump |
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| JS97013 | Dump |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 1663 - 009 Bjørnberget |
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# |
| JS97012 | Dump | 68 | 106 | 13 | 30 | 101 | -.3 | 1.0 |
| JS97013 | Dump | 73 | 108 | 19 | 31 | 134 | -.3 | 1.0 |
| ------------------ |
| Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sb* | Bi* | S% |
| JS97012 | -1.0 | -1.0 | 13 | .9 | 16 | 4.00 | -3 | -3 | 1.74 |
| JS97013 | -1.0 | -1.0 | 8 | .9 | 21 | 2.00 | -3 | -3 | 2.50 |
| ------------------ |
| Sample No. | V* | Cr* | Mn* | Fe% | Th* | U* | W* | Sr* | La* |
| JS97012 | 69 | 100 | 543 | 6.12 | 6.00 | -8.00 | -2 | 34.0 | 17.00 |
| JS97013 | 73 | 125 | 515 | 7.46 | 5.00 | -8.00 | -2 | 36.0 | 12.00 |
| ------------------ |
| Sample No. | B* | ||||||||
| JS97012 | 3 | ||||||||
| JS97013 | -3 |
| The fact sheet was created on 19.05.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |