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THE ORE DATABASE | |||||
Occurence 5514 - 006 Breidvoll | |||||
(Object Id: 1341) (Last updated: 26.04.2020) |
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Location |
County: | Troms | Municipality: | Ibestad (5514) |
Map 1:50000: | Andørja (1332-1) | Map 1:250000: | Narvik |
Coordinate system: | EU89-UTM Zone 33 |
East: | 586271 m. | North: | 7629841 m. |
Longitude: | 17.1348480 | Latitude: | 68.7666520 |
Show on map |
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Resource |
Resource Type: | Ferrous metals(Fe, Mn, Ti) | Resource Subtype: | Iron | |
Element(s): | Fe Cu |
Importance |
Raw material meaning: | Little Importance (reg. 18.02.2015) |
Resources and production |
Activity: | Pitting | Reserves: | ||
Operating method: | Historical production: |
Operations |
From - To | Activity | Comments | |
1906 - 1907 | Pitting | ||
1961 - 1961 | Geology | Company/Institution :Mannesmann AG |
Mineralization |
Era: | Proterozoic | Period: | Neoproterozoic | |
Genesis: | Sedex | Form: | Layer | |
Main texture: | Banded | Min. distribution: | Semi-massive (20-50 % ore minerals) |
Main grain size: | Medium grained (1-3 mm) | Main alteration: |
Strike/Dip: | 30 / 20 | Direction: | ||
Plunge: |
Stratigraphic classification of host rock |
Era: | Proterozoic | Period: | Neoproterozoic |
Province: | Caledonides | |
Geotec.unit: | Seve-Køli Nappe Complex | |
Tectonic complex: | ||
Igneous complex: |
Group: | Bogengruppen | Formation: |
Mineralogy |
Relationship | Mineral | Amount | |
Gangue mineral | Garnet | Major mineral (>10%) | |
Gangue mineral | Amphibole | Major mineral (>10%) | |
Gangue mineral | Quartz | Major mineral (>10%) | |
Gangue mineral | Feldspar | Subordinate mineral (1-10%) | |
Ore mineral | Magnetite | Major mineral (>10%) | |
Ore mineral | Chalcopyrite | Accessory mineral (<1%) |
Lithology: |
Relationship | Rock | Origin | |
Host rock | Kalkspatmarmor | Sedimentary Original rock :Limestone |
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Metamorphic facies :Amphibolite |
Structures |
Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
Host rock | Foliation | Strike/Dip :30 / 20 | Post-mineralisation ;...Effect :Modifies | |
Host rock | Primary layering | Strike/Dip :30 / 20 | Syn-mineralisation ;...Effect :Controls |
Information(s) in free text format |
Free text |
The Breivoll occurrence comprises a minor hill with a minimum two meter thick iron formation. It is ovelain by marble on top of the hill. The banding/foliation of the marble is 20°/20°. Both garnet-rich (Sample JSFE1220) and amphibole-enriched (Sample JSFE1218) magnetite-quartz banded IF occur. In the uppermost part of the iron formations are a minor layer with dissemination of pyrite observed (Sample JSFE1219). Similar mineralisation occurs in a minor 'road cut' further north in Skrinndalen. |
Bibliography: |
From NGU's Reference Archive: |
Boltke, H. , 1962 |
Ergebnisse der untersuchungen der Eisenerzlagerstatte Rolløya. |
;Norges geologiske undersøkelse;TEKNISK RAPPORT;Bergarkivet; No.BA 3252;3 pages |
Abstract: | |
Rapporten gir en kort petrografisk beskrivelse, analyseresultater og oppredningsforsøk av malmen. Malmen er en kvartsbåndet jernmalm med mulig 33 mill. tonn malmmengde. Analyse av råmalm gir 33 % Fe og 12 % Mn. Oppredningsforsøkene er positive, men forskjellige forhold som vanskelig tektonikk, liten mektighet og fasielle overganger til hematitt gjør at forekomsten ansees som uøkonomisk. |
Gustavson, Magne , 1974 |
Harstad. Beskrivelse til det berggrunnsgeologiske gradteigskart M 8 - 1:100 000 (med fargetrykt kart) |
;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL; KARTBESKRIVELSE;NGU; Skrifter; No.309; 14;1-33 + ka pages |
Abstract: | |
From a structural point of view the bedrocks of the map area can be subdivided into 1. Precambrian basement (autochthonous), and 2. Allochthonous Caledonian units. The Caledonian sequence embraces a) The lowermost over-thrust units, b) The main unit (Harstad Nappe) and c) The upper units (Straumsbotn Nappe and Niingen (?) Nappe). The main unit belongs to the Seve-KÎli Nappe Complex. The bedrock lithoogies within these units are briefly described. Metasediments, metamorphosed igneous intrusive rocks and possible metavolcanics (some amphibolite layers) are met with in the allochthounous sequence together with deformed Precambrian granite. Within the autochthonous Precambrian, granite and granitic gneiss predominate although meta-gabbro covers a large area in the northwestern part. Ore occurrences (magnetic ore, copper etc.) of the "skarn type" are connected with inclusions of metasediments (marble, mica schist etc.) in the Precambrian granite. The deformation history of the area can be subdivided into 3 episodes (F1, F2, F3) of which F1 and F2 are the most important ones. F1 resulted in mainly recumbent folds with an axial plane schistosity. This F1 schistosity is the regional schistosity now observed. |
Fieldsamples |
Sample No. | Sample type | Miscellanrous | |||||
JSFE1218 | Bedrock |
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JSFE1219 | Bedrock |
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JSFE1220 | Bedrock |
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TR0392.01 | Bedrock |
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NB! All analyse values are shown at the end of the printout.: |
Name of Sample point: Prøvepunkt 1 |
(Object Id: 1872 6,00,01) |
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Location |
County: | Troms | Municipality: | Ibestad (5514) |
Map 1:50000: | Andørja (1332-1) | Map 1:250000: | Narvik |
Coordinate system: | EU89-UTM Zone 33 |
East: | 586032 m. | North: | 7629946 m. |
Longitude: | 17.1290460 | Latitude: | 68.7676660 |
Show on map |
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Resource |
Resource Type: | Ferrous metals(Fe, Mn, Ti) | Resource Subtype: | Iron | |
Element(s): | Fe |
Fieldsamples |
Sample No. | Sample type | Miscellanrous | ||||
TR0392.02 | Bedrock |
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NB! All analyse values are shown at the end of the printout.: |
Name of Locality: Skrinndalen |
(Object Id: 36470 6,01,00) |
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Location |
County: | Troms | Municipality: | Ibestad (5514) |
Map 1:50000: | Andørja (1332-1) | Map 1:250000: | Narvik |
Coordinate system: | EU89-UTM Zone 33 |
East: | 586419 m. | North: | 7630813 m. |
Longitude: | 17.1393630 | Latitude: | 68.7753210 |
Show on map |
|
Resource |
Resource Type: | Ferrous metals(Fe, Mn, Ti) | Resource Subtype: | Iron | |
Element(s): | Fe |
Resources and production |
Activity: | Exploration | Reserves: | ||
Operating method: | Historical production: |
Fieldsamples |
Sample No. | Sample type | Miscellanrous | |||||
JSFE1226 | Bedrock |
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NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
from |
Deposit Area 5514 - 006 Breidvoll |
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# |
JSFE1218 | Bedrock | 1 | 15 | 1 | 10 | 6 | 3.8 | |
JSFE1219 | Bedrock | 9 | 19 | 1 | 34 | 20 | 2.7 | |
JSFE1220 | Bedrock | 8 | 10 | 1 | 95 | 39 | 2.3 | |
JSFE1226 | Bedrock | 39 | 24 | 1 | 148 | 78 | 2.4 | |
TR0392.01 | Bedrock | 16 | 9 | -3 | 11 | 13 | -.3 | -2.0 |
TR0392.02 | Bedrock | 46 | 19 | 5 | 43 | 75 | -.3 | 2.0 |
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Sample No. | Pt# | Pd# | Rh# | As* | Cd* | Ba* | Mo* | Sb* | Bi* |
JSFE1218 | 2 | 22 | 0.50 | ||||||
JSFE1219 | 2 | 23 | 0.60 | ||||||
JSFE1220 | 2 | 10 | 1.10 | ||||||
JSFE1226 | 0 | 5 | 0.90 | ||||||
TR0392.01 | -3.0 | -3.0 | -5.0 | 5 | -.2 | 6 | -1.00 | 5 | -2 |
TR0392.02 | -3.0 | -3.0 | -5.0 | 3 | .4 | 5 | 1.00 | 7 | -2 |
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Sample No. | Ga* | S% | V* | Cr* | Mn* | Fe% | Th* | U* | W* |
JSFE1218 | 7.70 | 59 | 14 | 1.80 | 0.30 | ||||
JSFE1219 | 8.30 | 66 | 82 | 3.10 | 0.40 | ||||
JSFE1220 | 10.80 | 17 | 41 | 2.80 | 1.10 | ||||
JSFE1226 | 10.60 | 37 | 14 | 3.10 | 0.50 | ||||
TR0392.01 | .17 | 56 | 26 | 3608 | 30.11 | 2.00 | -5.00 | -2 | |
TR0392.02 | .29 | 47 | 24 | 6361 | 16.52 | 3.00 | -5.00 | -2 |
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Sample No. | Rb* | Sr* | Y* | Zr* | Nb* | Ta* | Cs* | La* | Ce* |
JSFE1218 | 4.5 | 63.7 | 19.0 | 41 | 4.70 | 0.20 | 0.05 | 9.60 | 20.60 |
JSFE1219 | 9.6 | 67.8 | 23.4 | 69 | 6.80 | 0.40 | 0.30 | 5.20 | 10.20 |
JSFE1220 | 6.2 | 29.4 | 40.6 | 136 | 5.50 | 0.50 | 0.40 | 7.00 | 18.20 |
JSFE1226 | 1.7 | 72.9 | 30.2 | 81 | 1.40 | 0.20 | 0.50 | 11.10 | 22.30 |
TR0392.01 | 35.0 | 6.00 | |||||||
TR0392.02 | 40.0 | 13.00 |
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Sample No. | Pr* | Nd* | Sm* | Eu* | Gd* | Tb* | Dy* | Ho* | Er* |
JSFE1218 | 2.65 | 9.80 | 2.29 | 0.56 | 2.86 | 0.42 | 3.20 | 0.65 | 2.18 |
JSFE1219 | 1.51 | 6.80 | 2.11 | 0.59 | 3.10 | 0.51 | 3.74 | 0.76 | 2.31 |
JSFE1220 | 1.92 | 8.00 | 2.43 | 0.82 | 5.49 | 0.99 | 6.94 | 1.32 | 3.96 |
JSFE1226 | 3.10 | 12.70 | 2.92 | 0.76 | 4.03 | 0.62 | 4.57 | 0.91 | 2.89 |
TR0392.01 | |||||||||
TR0392.02 |
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Sample No. | Tm* | Yb* | Lu* | B* | Hf* | ||||
JSFE1218 | 0.33 | 2.30 | 0.35 | 0.90 | |||||
JSFE1219 | 0.35 | 2.47 | 0.42 | 1.60 | |||||
JSFE1220 | 0.56 | 3.95 | 0.62 | 3.30 | |||||
JSFE1226 | 0.45 | 3.18 | 0.52 | 1.80 | |||||
TR0392.01 | -3 | ||||||||
TR0392.02 | -3 |
Oxide analyses |
( All values are in % ) |
Sample No. | Sample Type | SiO2 | Al2O3 | TiO2 | Fe2O3 | MnO | MgO | CaO |
JSFE1218 | Bedrock | 45.09 | 2.70 | 0.20 | 44.91 | 0.52 | 2.28 | 4.41 |
JSFE1219 | Bedrock | 44.44 | 5.15 | 0.29 | 38.28 | 1.90 | 3.09 | 5.86 |
JSFE1220 | Bedrock | 44.77 | 13.26 | 0.24 | 21.11 | 11.87 | 1.95 | 7.26 |
JSFE1226 | Bedrock | 45.07 | 5.70 | 0.36 | 33.05 | 7.25 | 2.56 | 4.86 |
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Sample No. | Na2O | K2O | P2O5 | Loss | Sum | ||||
JSFE1218 | 0.63 | 0.25 | 0.53 | -1.11 | 100.00 | ||||
JSFE1219 | 0.67 | 0.57 | 0.40 | -0.41 | 100.00 | ||||
JSFE1220 | 0.21 | 0.08 | 0.23 | -0.46 | 101.00 | ||||
JSFE1226 | 0.13 | 0.03 | 0.61 | -0.52 | 99.00 |
The fact sheet was created on 01.05.2024 |
Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
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