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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 1854 - 047 | |||||
| (Last updated 10.mai.2006) | |||||
Name of Deposit Area : Lomtjønna |
| (Object Id : 1854,047,00,00) |
| Location |
| County : | Nordland (18) | Municipality : | Ballangen (1854) |
| Map 1:50000: | Evenes (1331-4) | Map 1:250000: | Narvik |
| Marking point: | Longitude: | 16.7823790 | Latitude: | 68.3324910 |
| EU89-UTM Zone 33 | (Coordinates IS confirmed) |
| X-coord: | 573432 m. | Y-coord: | 7580996 m. |
|
|
| Commodity |
| Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Sulphides | |
| Element(s): | Kis |
| Production |
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: | 6 m3 |
| Importance |
| Public: | Little Importance (reg. 18.02.2015) |
| Economical: | Minor interest |
Mineralization |
| Era: | Paleozoic | Period: | ||
| Dating: | Method: | |||
| 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: | Sericitisation |
| Strike/Dip: | 210 / 36 | Direction: | ||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Paleozoic | Period: |
| Province: | Caledonides | |
| Geotec.unit: | Narvik Nappe Complex | |
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Narvikgruppen | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Muscovite | Major mineral (>10%) | |
| Gangue mineral | Graphite | Subordinate mineral (1-10%) | |
| Gangue mineral | Chlorite | Accessory mineral (<1%) | |
| Gangue mineral | Hornblende | Accessory mineral (<1%) | |
| Ore mineral | Pyrrhotite | Major mineral (>10%) | |
| Ore mineral | Pyrite | Major mineral (>10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Serisittskifer | Sedimentary Original rock :Siliceous rock |
|
| Metamorphic facies :Amphibolite | |||
| Wall rock | Grafittskifer | Sedimentary Original rock :Argillaceous sediment |
|
| Metamorphic facies :Amphibolite | |||
| Wall rock | Granatgl.skifer | Sedimentary Original rock :Argillaceous sediment |
|
| Metamorphic facies :Amphibolite |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Host rock | Primary layering | Strike/Dip :210 / 36 | Syn-mineralisation ;...Effect :Controls | |
| Host rock | Foliation | Strike/Dip :210 / 36 | Post-mineralisation ;...Effect :Modifies | |
| Host rock | Mineral banding | Strike/Dip :210 / 36 | Syn-mineralisation ;...Effect :Controls | |
| Wall rock | Shear plane | Strike/Dip :210 / 36 | Post-mineralisation ;...Effect :Modifies |
Information(s) in free text format |
| Free text |
| Lomtjønna: Består av 2 vannfylte skjerp 15m fra hverandre. NV-vegg i skjerpene er stort sett sammenfallende med forkastning, indikert ved glimmerrikt lag. NV for denne finnes granatglimmerskifer. SV for denne opptrer grafittskifer. Et tynt lag (ca. 30cm) chert finnes in situ. Malmprøver: 01: Svovelkis og magnetkis i serisittskifer. 02: Chert med svovelkis. 03: Svovelkis og magnetkis i serisittskifer +/- grafitt. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| NO0348.03 | Bedrock |
|
| NB! All analyse values are shown at the end of the printout.: |
Name of Locality : Ørnåsen |
| (Object Id : 1854,047,01,00) |
| Location |
| County : | Nordland (18) | Municipality : | Ballangen (1854) |
| Map 1:50000: | Evenes (1331-4) | Map 1:250000: | Narvik |
| Marking point: | Longitude: | 16.7983590 | Latitude: | 68.3350110 |
| EU89-UTM Zone 33 | (Coordinates IS confirmed) |
| X-coord: | 574082 m. | Y-coord: | 7581296 m. |
|
|
| Commodity |
| Main Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Sub Type: | Sulphides | |
| Element(s): | Kis |
| Production |
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: |
Information(s) in free text format |
| Free text |
| Ørnåsen: SV-NØ gående skjerp 7 x 2m ca. 2m dypt med synk/stoll som ser ut til å ha vært drevet på skrå. I skjerpet er blottet ca. 2.5m chert med svovelkis. I hengen NØ opptrer granatglimmerskifer og i ligg serisittskifer. Et enkelt lag (ca 15cm) grafittskifer finnes i cherten. I tippen finnes chert med svovelkis, og serisittskifer med svovelkis og magnetkis. Strøk/fall: 105/14 N. Tippvolum ca. 20m3. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| NO0348.01 | Bedrock |
|
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| NO0348.02 | Bedrock |
|
| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 1854 - 047 Lomtjønna |
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# |
| NO0348.01 | Bedrock | 169 | 641 | 65 | 55 | 83 | -8.2 | 5.0 |
| NO0348.02 | Bedrock | -8 | 20 | -41 | 91 | 24 | -8.2 | 1.0 |
| NO0348.03 | Bedrock | 103 | 237 | -41 | 89 | 90 | -8.2 | 7.0 |
| ------------------ |
| Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sn* | Sb* | Bi* |
| NO0348.01 | 3.0 | 12.0 | 28 | -8.2 | 133 | 38.40 | -20 | 118 | -20 |
| NO0348.02 | 4.0 | 3.0 | 102 | -8.2 | 55 | 17.10 | -20 | -20 | -20 |
| NO0348.03 | 4.0 | 3.0 | 206 | -8.2 | 114 | 76.60 | -20 | -20 | -20 |
| ------------------ |
| Sample No. | S% | V* | Cr* | Mn* | Fe% | Th* | U* | Sr* | La* |
| NO0348.01 | 12.20 | 55 | -8 | 48 | 20.60 | -30.00 | -30.00 | 141.0 | -8.20 |
| NO0348.02 | 15.10 | 89 | -8 | 14 | 13.80 | -30.00 | -30.00 | 94.3 | -8.20 |
| NO0348.03 | 12.20 | 168 | -8 | 102 | 21.50 | -30.00 | -30.00 | 61.4 | -8.20 |
| ------------------ |
| Sample No. | B* | ||||||||
| NO0348.01 | -41 | ||||||||
| NO0348.02 | -41 | ||||||||
| NO0348.03 | -41 |
| The fact sheet was created on 17.05.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |