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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 1919 - 005 | |||||
| (Last updated 07.feb.2024) | |||||
Name of Deposit Area : Storvatnet |
| (Object Id : 1919,005,00,00) |
| Location |
| County : | Troms (19) | Municipality : | Gratangen (1919) |
| Map 1:50000: | Gratangen (1432-3) | Map 1:250000: | Narvik |
| Marking point: | Longitude: | 17.6604560 | Latitude: | 68.6230580 |
| EU89-UTM Zone 33 | (Coordinates IS confirmed) |
| X-coord: | 608193 m. | Y-coord: | 7614671 m. |
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| Commodity |
| Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
| Element(s): | Fe |
| Production |
| Activity: | Exploration | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: |
| Importance |
| Public: | Little Importance (reg. 18.02.2015) |
| Economical: | Minor interest , (Confirmed 18.feb.2005 by Peter Ihlen) |
Mineralization |
| Era: | Period: | |||
| Dating: | Method: | |||
| Genesis: | Sedex | Form: | Layer | |
| Main texture: | Banded | Min. distribution: | Semi-massive (20-50 % ore minerals) |
| Main grain size: | Fine grained (< 1 mm) | Main alteration: |
| Strike/Dip: | 35 / 40 | Direction: | ||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Period: |
| Province: | ||
| Geotec.unit: | ||
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Amphibole | Major mineral (>10%) | |
| Ore mineral | Magnetite | Major mineral (>10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | amfibolitt | Extrusive Original rock :Tuff |
|
| Metamorphic facies :Amphibolite | |||
| Wall rock | kalkspatmarmor | Sedimentary Original rock :Limestone |
|
| Metamorphic facies :Amphibolite |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Host rock | Foliation | Strike/Dip :35 / 40 | Post-mineralisation ;...Effect :None |
Information(s) in free text format |
| Free text |
| Det ble ikke funnet skjerp eller mineralisering øst for Storvatnet eller ved Mellomvasselva, hvor Gustavson (1974)sier det skal finnes. I veiskjæring langs E6, ved UTM 608200 7614650, er det en tynn magnetitt-mineralisering. I en vekslende enhet av kalkspatmarmor, kvartsittisk- og kalkglimmerskifer er det et vel 10cm mektig lag av finkornet amfibolitt med semimassiv til massiv magnetitt (prøve 01 og 02). |
Bibliography: |
| From NGU's Reference Archive: |
| Gustavson, Magne; Vogt, Thorolf , 1974 |
| Narvik. Beskrivelse til det berggrunnsgeologiske gradteigskart N9 - 1:100 000 (med fargetrykt kart). |
| ;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL; KARTBESKRIVELSE;NGU; Skrifter; No.308; 13;1-34 + ka pages |
| Abstract: | |
| The geological map Narvik, published in 1950, is briefly described. The bedrock of this map area can be subdivided into autochthonous and allochthonous rocks. The autochthonous rocks comprise the Precambrian (mainly the Rombak window) and overlying conglomerate and sandstone of supposed Lower Cambrian age. An angular unconformity separates the Precambrian from Lower Cambrian. The allochthonous, Caledonian sequence can be subdivided into three thrust units. The main part of this sequence is probably Cambro-Silurian in age, but slices of deformed Precambrian granite occur at the base of the middle unit. Metamorphism of the allochthonous sequence took place in the epidote-amphibolite and almandine-amphibolite facies (up to kyanite grade). A chapter on the economic geology of the area and an excursion guide are included. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| Storvann-1 | Bedrock |
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| TR0421.01 | Bedrock |
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| TR0421.02 | Bedrock |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 1919 - 005 Storvatnet |
Oxide analyses |
( All values are in % ) |
| Sample No. | Sample Type | SiO2 | Al2O3 | TiO2 | Fe2O3 | MnO | MgO | CaO |
| Storvann-1 | Bedrock | 40.85 | 3.09 | 0.15 | 47.93 | 0.80 | 1.71 | 5.53 |
| ------------------ |
| Sample No. | Na2O | K2O | P2O5 | Loss | Sum | ||||
| Storvann-1 | 0.55 | 0.51 | 0.53 | -1.11 | 101.00 |
| The fact sheet was created on 09.12.2025 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2025 Geological Survey of Norway |