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English version | ||||
| MALMDATABASEN | |||||
| Forekomstområde 1924 - 019 | |||||
| (Sist oppdatert 07.mar.2017) | |||||
Navn på deposit area : Bjelma |
| (Objekt Id : 1924,019,00,00) |
| Lokalisering |
| Fylke : | Troms (19) | Kommune : | Målselv (1924) |
| Kart 1:50000: | Takvatnet (1533-3) | Kart 1:250000: | Tromsø |
| Markeringspunkt: | Lengdegrad: | 18.7412960 | Breddegrad: | 69.0874030 |
| EU89-UTM Zone 34 | (Coordinates IS confirmed) |
| X-koord: | 410041 m. | Y-koord: | 7665764 m. |
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| Materialtype |
| Hovedtype: | Jernmetaller (Fe, Mn, Ti) | Subtype: | Jern | |
| Element(s): | Fe |
| Production |
| Activity: | Prospektering | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: |
| Betydning |
| Offentlig: | Little Importance (reg. 02.06.2015) |
| Economical: | Lite viktig , (Confirmed 02.jun.2015 by Terje Bjerkgård) |
Operations |
| From - To | Activity | Comments | |
| 2011 - 2011 | Geophysics | Company/Institution :NGU | |
| Aerial survey (mag., EM, radiometry) | |||
| 2011 - 2013 | Geology | Company/Institution :NGU |
Mineralization |
| Era: | Proterozoic | Period: | Mesoproterozoic | |
| Dating: | Method: | |||
| Genesis: | Kjemisk sediment | Form: | Linse | |
| Main texture: | Båndet | Min. distribution: | Semi-massiv |
| Main grain size: | Middelskornet (1-3 mm) | Main alteration: | Ingen sidestensomvandling |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Proterozoic | Period: | Mesoproterozoic |
| Province: | Troms-Finnmark Basement Province | |
| Geotec.unit: | ||
| Tectonic complex: | Mauken Tectoni Window | |
| Igneous complex: |
| Group: | Målselva Group | Formation: | Myrefjellet Formation |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Carbonate | Major mineral (>10%) | |
| Gangue mineral | Grunerite | Major mineral (>10%) | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Biotite | Subordinate mineral (1-10%) | |
| Gangue mineral | Chlorite | Accessory mineral (<1%) | |
| Ore mineral | Magnetite | Major mineral (>10%) | |
| Ore mineral | Pyrite | Accessory mineral (<1%) |
Lithology: |
| Relationship | Rock | Origin | |
| Wall rock | Grønnskifer/tuffitt | Sedimentary Original rock :Tuffite |
|
| Metamorphic facies :Greenschist | |||
| Wall rock | Grønnstein | Extrusive Original rock :Basalt |
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| Metamorphic facies :Greenschist |
Bibliography: |
| From NGU's Reference Archive: |
| Bjerkgård, Terje; Henderson, Iain; Sandstad, Jan Sverre; Schönenberger, Johannes; Slagstad, Trond , 2015 |
| Geology of the Mauken tectonic window, Målselv, Troms |
| ;Norges geologiske undersøkelse;RAPPORT;NGU-rapport; No.2015.013;60+kart pages |
| Abstract: | |
| This report presents the results from bedrock mapping in the Mauken tectonic window, carried out in several periods in 2011-2013. During the NGU MINN program, the Mauken area has been subject to a high-resolution airborne geophysical survey (magnetometry, radiometry, EM), followed by bedrock mapping and structural geology investigations. The work in the Mauken area is part of a larger project in southern Troms, with the goal to work out a structural-tectonic-metallogenic model and interpretaion for the basement areas in the whole region. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| TBMA_5 | Bedrock |
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| TBMA_72 | Bedrock |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Forekomstområde 1924 - 019 Bjelma |
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# |
| TBMA_5 | Bedrock | 158 | 25 | -3 | 30 | 27 | ||
| TBMA_72 | Bedrock | 337 | 8 | 2 | 12 | 18 | .6 | 5.4 |
| ------------------ |
| Sample No. | As* | Cd* | Ba* | Mo* | Sb* | Bi* | Se* | Ga* | Ge* |
| TBMA_5 | 126 | 3.00 | 2.00 | 2.00 | |||||
| TBMA_72 | 2 | -1.0 | 31 | -1.00 | 1 | -1 | -1.00 | 1.00 |
| ------------------ |
| Sample No. | S% | V* | Cr* | Mn* | Fe% | Th* | U* | W* | Rb* |
| TBMA_5 | 44 | 45 | 9217 | 17.83 | -4.00 | -2.00 | -5 | 3.0 | |
| TBMA_72 | -.02 | 18 | 44 | 3330 | 23.06 | -1.00 | -1.00 | 2 | 4.0 |
| ------------------ |
| Sample No. | Sr* | Y* | Zr* | Nb* | Ta* | Cs* | La* | Ce* | Pr* |
| TBMA_5 | 12.0 | 17.0 | 19 | 2.00 | -4.00 | -10.00 | -20.00 | 90.00 | |
| TBMA_72 | 5.0 | 13.0 | 14 | -1.00 | -1.00 | -1.00 | 9.00 | 21.00 | 2.00 |
| ------------------ |
| Sample No. | Nd* | Sm* | Eu* | Gd* | Tb* | Dy* | Ho* | Er* | Tm* |
| TBMA_5 | 21.00 | 14.00 | |||||||
| TBMA_72 | 9.00 | 2.00 | -1.00 | 2.00 | -1.00 | 2.00 | -1.00 | 1.00 | -1.00 |
| ------------------ |
| Sample No. | Yb* | Lu* | Na* | Mg* | Al* | Si* | P* | K * | Ca* |
| TBMA_5 | -5.00 | 371 | 15316 | 6827 | ###### | 790 | 1312 | 13508 | |
| TBMA_72 | 1.00 | -1.00 | 37 | 3377 | 3493 | ###### | 611 | 249 | 3359 |
| ------------------ |
| Sample No. | Sc* | Ti* | Hf* | Hg* | |||||
| TBMA_5 | 5.00 | 396 | -5.00 | ||||||
| TBMA_72 | 180 | -1.00 | -1 |
| Faktaarket ble generert 19.06.2026 |
| Spørsmål eller kommentarer vedrørende faktaarket kan mailes til: ressursdatabaser@ngu.no |
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