(Last updated: 22.06.2007)
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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Occurence 1806 - 108 Jernlia | |||||
| (Object Id: 2564) (Last updated: 22.06.2007) |
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| Location |
| County: | Nordland | Municipality: | Narvik (1806) |
| Map 1:50000: | Kjøpsvik (1331-3) | Map 1:250000: | Narvik |
| Coordinate system: | EU89-UTM Zone 33 |
| East: | 567732 m. | North: | 7570996 m. |
| Longitude: | 16.6376570 | Latitude: | 68.2442590 |
| Show on map |
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| Resource |
| Resource Type: | Ferrous metals(Fe, Mn, Ti) | Resource Subtype: | Iron | |
| Element(s): | Fe |
| Importance |
| Raw material meaning: | Little Importance (reg. 18.02.2015) |
| Resources and production |
| Activity: | Test mining | Reserves: | 6 thousand tons | |
| Operating method: | Underground mining | Historical production: |
Products |
| Element/product | Crude ore grade or quality | Reg. date | |
| Fe | 57.6 % | 10.06.1993 |
Operations |
| From - To | Activity | Comments | |
| 1898 - 1900 | Test mining | Company/Institution :Ingeniør Hjelm | |
| 1978 - 1978 | Geology | Company/Institution :Rana Gruber |
Mineralization |
| Era: | Proterozoic | Period: | ||
| Genesis: | Unknown | Form: | Ruler | |
| Main texture: | Banded | Min. distribution: | Massive (>50 % ore minerals) |
| Main grain size: | Fine grained (< 1 mm) | Main alteration: | Skarn formation |
| Strike/Dip: | 315 / 70 | Direction: | 45 | |
| Plunge: | 60 |
| Stratigraphic classification of host rock |
| Era: | Proterozoic | Period: | Paleoproterozoic |
| Province: | Caledonian Basement Province | |
| Geotec.unit: | Tysfjord Complex | |
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Calcite | Subordinate mineral (1-10%) | |
| Gangue mineral | Hornblende | Subordinate mineral (1-10%) | |
| Gangue mineral | Garnet | Subordinate mineral (1-10%) | |
| Gangue mineral | Biotite | Subordinate mineral (1-10%) | |
| Gangue mineral | Chlorite | Subordinate mineral (1-10%) | |
| Gangue mineral | Epidote | Subordinate mineral (1-10%) | |
| Gangue mineral | Fluorspar | Accessory mineral (<1%) | |
| Gangue mineral | Apatite | Accessory mineral (<1%) | |
| Ore mineral | Magnetite | Major mineral (>10%) | |
| Ore mineral | Hematite | Accessory mineral (<1%) |
Lithology: |
| Relationship | Rock | Origin | |
| Unknown | Presset granitt | Intrusive Original rock :Granite |
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| Metamorphic facies :Amphibolite | |||
| Unknown | Granatskarn | Intrusive Original rock :Gabbro |
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| Metamorphic facies :Amphibolite |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Unknown | Foliation | Syn-mineralisation ;...Effect :None |
Information(s) in free text format |
| Free text |
| Jernlia magnetittforekomst ligger 450 m.o.h og 650m NØ for strandlinjen til Efjorden. Den rike magnetittmalmen har bare en 30m lang strøklengde og er 1-3m tykk. Malmen er bundet til 2 granatskarnlinser 6-8m tykke og minst 50- og 70m lange. Nær granatskarnet inneholder den finkornete granaten spredte 1-6cm tykke magnetitt- hornblendeimpregnerte bånd. Malmarealet til rikmagnetitten er bare (20 ganger 1m) + (10 ganger 3m). Malmen er linjalformet med lengste akse mot dypet, fall 60 grader mot NØ. Det er igjen ca. 6000 tonn magnetittmalm. Forekomsten er egentlig mere en andraditt-granatskarnforekomst med 60-70 volumprosent granat. U. Søvegjarto. Utgående kan følges i ca. 100m fra slepesynk i stor skjæring. Malmen synes å kile ut i begge retninger. Stedvis opptrer meget klar og fin vinrød flusspat i forekomsten. Den gamle gruveveien som går i slynger fra sjøen og opp til forekomsten er delvis gjengrodd, men burde ha stor kulturhistorisk interesse. I. Lindahl/L. Furuhaug -94. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| NO0430.01 | Bedrock |
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| NO0430.02 | Bedrock |
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| NO0430.03 | Bedrock |
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| NO0430.04 | Bedrock |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 1806 - 108 Jernlia |
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# |
| NO0430.01 | Bedrock | 13 | 214 | 14 | 4 | 1 | .1 | 10.0 |
| NO0430.02 | Bedrock | 14 | 636 | 9 | 32 | 13 | .7 | 20.0 |
| NO0430.03 | Bedrock | 7 | 114 | 10 | 4 | 1 | .1 | 4.0 |
| NO0430.04 | Bedrock | 10 | 484 | 6 | 26 | 13 | .5 | 5.0 |
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| Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sb* | Bi* | S% |
| NO0430.01 | 1.0 | 4.0 | 18 | .2 | 42 | 1.00 | 2 | 2 | .05 |
| NO0430.02 | 6.0 | 8.0 | 2 | .2 | 30 | 1.00 | 2 | 5 | .04 |
| NO0430.03 | 1.0 | 6.0 | 4 | .2 | 48 | 1.00 | 2 | 2 | .03 |
| NO0430.04 | 1.0 | 1.0 | 2 | .2 | 83 | 1.00 | 2 | 2 | .03 |
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| Sample No. | V* | Cr* | Mn* | Fe% | Th* | U* | W* | Sr* | La* |
| NO0430.01 | 21 | 7 | 12772 | 8.83 | 1.00 | 5.00 | 3 | 17.0 | 2.00 |
| NO0430.02 | 42 | 6 | 5271 | 47.38 | 1.00 | 5.00 | 1 | 5.0 | 2.00 |
| NO0430.03 | 28 | 2 | 12387 | 13.85 | 1.00 | 5.00 | 3 | 18.0 | 2.00 |
| NO0430.04 | 32 | 2 | 6259 | 35.79 | 1.00 | 5.00 | 1 | 12.0 | 2.00 |
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| Sample No. | B* | ||||||||
| NO0430.01 | 414 | ||||||||
| NO0430.02 | 7 | ||||||||
| NO0430.03 | 263 | ||||||||
| NO0430.04 | 70 |
| The fact sheet was created on 04.05.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |