Norsk versjon | |||||
THE ORE DATABASE | |||||
Occurence 5605 - 083 Lille Langvatn | |||||
(Object Id: 1991) (Last updated: 26.01.2005) |
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Location |
County: | Finnmark | Municipality: | Sør-Varanger (5605) |
Map 1:50000: | Kirkenes (2434-2) | Map 1:250000: | Kirkenes |
Coordinate system: | EU89-UTM Zone 36 |
East: | 385570 m. | North: | 7722409 m. |
Longitude: | 30.0595170 | Latitude: | 69.5855580 |
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 - 1985 | Geology | Company/Institution :Prospektering A/S | |
1985 - 1985 | Geophysics | Company/Institution :A/S Sydvaranger |
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: | 10 / 60 | Direction: | ||
Plunge: |
Stratigraphic classification of host rock |
Era: | Archean | Period: |
Province: | Troms-Finnmark Basement Province | |
Geotec.unit: | ||
Tectonic complex: | ||
Igneous complex: |
Group: | Bjørnevann Group | Formation: | Fisketind 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 | Quartzitic mica gneiss | Sedimentary Original rock :Muddy sandstone |
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Metamorphic facies :Amphibolite | |||
Wall rock | Hornblende gneiss | 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 :10 / 60 | Post-mineralisation ;...Effect :None | |
Host rock | Primary layering | Strike/Dip :10 / 60 | Syn-mineralisation ;...Effect :Controls |
Information(s) in free text format |
Free text |
Malmen har utgående rett sør for Lille Langvatn, ca. 500 m øst for Kjellmannsåsmalmen. Forekomsten ligger slik til at den var tenkbar som tilleggsmalm ved eventuell drift på Kjellmannsåsen. Malmtypen er av tilnærmet Bjørnevannstype, 25 - 32 % Fe magn., men trolig en annen horisont. Malmen er konsentrert i to områder med en tynn forbindelse. Forekomsten ligger isolert og er vanskelig å plassere i en større geologisk sammenheng. Malmen er vurdert for liten (malmareal 15 000 m2) til å være driftsaktuell. |
Bibliography: |
References not to be found in NGU's Reference Archive.: |
Iversen, E. 1986: Jernmalmer i Sørvaranger. Int. rapp. 1689. Prospektering A/S. |
Iversen, E. 1986: Lille Langvann. Int. rapp. 1670. Prospektering A/S. |
The fact sheet was created on 28.04.2024 |
Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
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