(Last updated: 04.02.2005)
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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Occurence 5605 - 107 Holmengråfjellet | |||||
| (Object Id: 2015) (Last updated: 04.02.2005) |
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| Location |
| County: | Finnmark | Municipality: | Sør-Varanger (5605) |
| Map 1:50000: | Bøkfjorden (2434-1) | Map 1:250000: | Kirkenes |
| Coordinate system: | EU89-UTM Zone 36 |
| East: | 396270 m. | North: | 7752688 m. |
| Longitude: | 30.2997130 | Latitude: | 69.8611850 |
| 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: | Exploration | Reserves: | ||
| Operating method: | Historical production: |
Operations |
| From - To | Activity | Comments | |
| 1982 - 1983 | Geology | Company/Institution :Prospektering A/S |
Mineralization |
| Era: | Archean | Period: | ||
| 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: | 285 / 25 | Direction: | ||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Archean | Period: |
| Province: | Troms-Finnmark Basement Province | |
| Geotec.unit: | ||
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Amphibole | Major mineral (>10%) | |
| Ore mineral | Magnetite | Major mineral (>10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Wall rock | Granitic gneiss | Sedimentary Original rock :Greywacke |
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| Metamorphic facies :Amphibolite | |||
| Wall rock | Amphibolite | Extrusive Original rock :Basalt |
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| Metamorphic facies :Amphibolite |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Host rock | Foliation | Strike/Dip :285 / 25 | Post-mineralisation ;...Effect :None | |
| Host rock | Primary layering | Strike/Dip :285 / 25 | Syn-mineralisation ;...Effect :Controls |
Information(s) in free text format |
| Free text |
| Bergartene i Hompen gneiskompleks består i hovedsak av båndede granittiske gneiser med hyppige amfibolittbånd i dm- til m-skala. Amfibolittene er mørke grønne og ofte svakt magnetiske. Lokalt finnes svake kvartsbåndede jernmalmer. I enkelte lokaliteter er det funnet jernmalmer av bedre kvalitet. |
Bibliography: |
| References not to be found in NGU's Reference Archive.: |
| Iversen, E. 1991: Beskrivelse av kartblad 2434 I, Bøkfjorden. Int. rapp. 2186. Prospektering A/S. |
| The fact sheet was created on 01.05.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |