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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 1939 - 001 | |||||
| (Last updated 21.feb.2005) | |||||
Name of Deposit Area : Brennfjellmyra |
| (Object Id : 1939,001,00,00) |
| Location |
| County : | Troms (19) | Municipality : | Storfjord (1939) |
| Map 1:50000: | Storfjord (1633-4) | Map 1:250000: | Nordreisa |
| Marking point: | Longitude: | 20.3512920 | Latitude: | 69.3300650 |
| EU89-UTM Zone 34 | (Coordinates IS confirmed) |
| X-coord: | 474445 m. | Y-coord: | 7691301 m. |
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| Commodity |
| Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Copper | |
| Element(s): | Cu Au |
| Production |
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: | 1 m3 |
| Importance |
| Public: | Little Importance (reg. 18.02.2015) |
| Economical: | Minor interest , (Confirmed 21.feb.2005 by Peter Ihlen) |
Operations |
| From - To | Activity | Comments | |
| 1916 - 1916 | Pitting |
Mineralization |
| Era: | Paleozoic | Period: | ||
| Dating: | Method: | |||
| Genesis: | Volcex | Form: | ||
| Main texture: | Banded | Min. distribution: | Disseminated (<20 % ore minerals) |
| Main grain size: | Medium grained (1-3 mm) | Main alteration: |
| Strike/Dip: | 260 / 30 | Direction: | 300 | |
| Plunge: | 10 |
| Stratigraphic classification of host rock |
| Era: | Paleozoic | Period: |
| Province: | ||
| Geotec.unit: | ||
| Tectonic complex: | Vaddasdekket | |
| Igneous complex: |
| Group: | Oksfjordgruppen | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Amphibole | Major mineral (>10%) | |
| Gangue mineral | Carbonate | Subordinate mineral (1-10%) | |
| Gangue mineral | Biotite | Subordinate mineral (1-10%) | |
| Gangue mineral | Garnet | Subordinate mineral (1-10%) | |
| Gangue mineral | Quartz | Subordinate mineral (1-10%) | |
| Gangue mineral | Plagioclase | Subordinate mineral (1-10%) | |
| Ore mineral | Pyrrhotite | Major mineral (>10%) | |
| Ore mineral | Chalcopyrite | Major mineral (>10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | kvartsitt | Sedimentary Original rock :Sandstone |
|
| Metamorphic facies :Amphibolite | |||
| Host rock | granat-amfibolitt | Extrusive Original rock :Basalt |
|
| Metamorphic facies :Amphibolite |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Host rock | Foliation | Strike/Dip :260 / 30 | Post-mineralisation ;...Effect :None | |
| Host rock | Fold axis | Strike/Dip :300 / 10 | Post-mineralisation ;...Effect :Modifies |
Information(s) in free text format |
| Free text |
| Røsken er ei 3x3 m, vannfylt, grunn sprenggrop i amfibolitt. 30-40 cm mektighet av denne middelskornete amfibolitten med granat og litt biotitt er mineralisert (prøve 02, 03 og 04) med kobberkis og magnetkis, som opptrer delvis i bånd og delvis ujevnt fordelt som disseminasjon. I liggkontakten til den mineraliserte amfibolitten er en 10-15 cm mektig finkornet kvartsitt med små granater og finfordelt kobberkis-disseminasjon (01). Under denne igjen er det amfibolitt. Hengbergarten til den mineraliserte amfibolitten er finkornet amfibolitt med noe granat og karbonatlag (05). 10 m mot vest er en gjengrodd avblotningsgrøft. I vegskjæringen ca. 50 m mot øst er den mineraliserte amfibolitten ca. 1 m mektig. Den er foldet, med foldeakse ca. 300/10 (omtrentlig mål pga. defekt kompass). Langs hengkontakten er det flere cm-mektige, konkordante kvartsbånd, stedvis med litt kobberkis. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| TR0136.01 | Bedrock |
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| TR0136.02 | Bedrock |
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| TR0136.03 | Bedrock |
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| TR0136.04 | Bedrock |
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| TR0136.05 | Bedrock |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 1939 - 001 Brennfjellmyra |
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# |
| TR0136.01 | Bedrock | 3920 | 274 | 29 | 28 | 32 | 1.8 | 54.0 |
| TR0136.02 | Bedrock | 194 | 33 | -81 | -16 | -32 | -16.2 | 1683.0 |
| TR0136.03 | Bedrock | 28200 | 628 | 14 | 104 | 51 | 1.3 | 1942.0 |
| TR0136.04 | Bedrock | 27200 | 429 | 9 | 25 | 8 | 1.9 | 3322.0 |
| TR0136.05 | Bedrock | 166 | 309 | 13 | 16 | 23 | -1.0 | 23.0 |
| ------------------ |
| Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sn* | Sb* | Bi* |
| TR0136.01 | 3.0 | 3.0 | 46 | -1.0 | 30 | -1.00 | -20 | -20 | -20 |
| TR0136.02 | 3.0 | 3.0 | 23 | -16.2 | 21 | -16.20 | -20 | -20 | 37 |
| TR0136.03 | 3.0 | 3.0 | -20 | 3.1 | 37 | 1.08 | -20 | -20 | 39 |
| TR0136.04 | 3.0 | 3.0 | 132 | 1.8 | 10 | 2.92 | -20 | -20 | 91 |
| TR0136.05 | 3.0 | 3.0 | -20 | -1.0 | 5 | -1.00 | -20 | -20 | -20 |
| ------------------ |
| Sample No. | S% | V* | Cr* | Mn* | Fe% | Th* | U* | Sr* | La* |
| TR0136.01 | .43 | 35 | 38 | 437 | 3.64 | -30.00 | -30.00 | 6.1 | 26.90 |
| TR0136.02 | 6.07 | 68 | -16 | 36 | .22 | -30.00 | -30.00 | -32.4 | -16.20 |
| TR0136.03 | 3.38 | 82 | 45 | 497 | 12.00 | -30.00 | -30.00 | 10.3 | -1.00 |
| TR0136.04 | 2.42 | 49 | 42 | 985 | 8.09 | -30.00 | -30.00 | 6.2 | -1.00 |
| TR0136.05 | -.01 | 71 | 87 | 873 | 2.84 | -30.00 | -30.00 | 19.4 | 3.35 |
| ------------------ |
| Sample No. | B* | ||||||||
| TR0136.01 | -5 | ||||||||
| TR0136.02 | -81 | ||||||||
| TR0136.03 | -5 | ||||||||
| TR0136.04 | -5 | ||||||||
| TR0136.05 | -5 |
| The fact sheet was created on 20.01.2025 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2025 Geological Survey of Norway |