(Last updated: 31.08.2022)
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Norsk versjon | ||||
| THE ???? DATABASE | |||||
| Occurence 0 - 000 FEIL | |||||
| (Object Id: ) (Last updated: 31.08.2022) |
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| Location |
| County: | Municipality: | Mangler () |
| Map 1:50000: | Oddvær (1131-1) | Map 1:250000: | Svolvær |
| Coordinate system: | UTM-Zone 33 - EUREF89/WGS84 |
| East: | 488200 m. | North: | 7589400 m. |
| Longitude: | 14.7125900 | Latitude: | 68.4153600 |
| Show on map |
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| Resource |
| Resource Type: | Graphite | Resource Subtype: | Graphite |
| Importance |
| Raw material meaning: | Not Assessed (reg. 07.12.2015) |
| Resources and production |
| Activity: | Test mining | Reserves: | ||
| Operating method: | Underground mining | Historical production: |
Products |
| Element/product | Crude ore grade or quality | Reg. date | |
| Refractories | 8 % | 21.01.1993 |
Operations |
| From - To | Activity | Comments | |
| 1900 - 1914 | Test mining | Company/Institution :Anglo-Norwegian Mining |
Mineralization |
| Era: | Proterozoic | Period: | ||
| Genesis: | Sedimentary deposit | Form: | Irregular | |
| Main texture: | Granoblastic | Min. distribution: | Disseminated (<20 % ore minerals) |
| Main grain size: | Medium grained (1-3 mm) |
| Strike/Dip: | 230 / 60 | Direction: | ||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Proterozoic | Period: |
| Province: | ||
| Geotec.unit: | ||
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Formation: |
Mineralogy |
| Mineral | Amount | |
| Graphite | Major mineral (>10%) | |
| Plagioclase | Major mineral (>10%) | |
| Quartz | Major mineral (>10%) | |
| Sillimanite | Accessory mineral (<1%) |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Host rock | Foliation | Strike/Dip :308 / 60 | Post-mineralisation ;...Effect :Controls |
Information(s) in free text format |
| Free text |
| At Sellåter on the eastern side of Morfjorden, a ca. 1200 m long helicopter-borne EM anomaly was discovered along the seaside (Figure 9.1). Partly this can be an effect of seawater, but the anomaly extends into land in a way that indicate some conductive material in bedrock. Geological follow-up work in 2017 discovered graphite mineralisation at the shore (Rønning at al. 2018). To get a better image of the graphite distribution, EM31 profiling was performed in 2018. The Sellåter area is also nearly 100 % soil covered. Exposed bedrock (with graphite) is detected along the shore. At Sellåter, several lines were measured with EM31 (Figure 9.6). High apparent electric conductivity (> 200 mS/m, apparent resistivity < 5 Om) is proven at several locations and partly these coincide with exposed graphite. The graphite mineralisation seems to be distributed into several isolated lenses. The largest of these is ca. 400 m long and at least 50 m wide. The graphite may also continue underneath the sea and further to the north (outside the area presented in Figure 9.6). An interpretation of graphite structures is shown. Detailed geophysical maps are shown in Rønning et al (2019). |
Bibliography: |
| From NGU's Reference Archive: |
| Rønning, J.S.;Gautneb, H.; Larsen, B.E.; Baranwal, V.C.; Davidsen, B.; Engvik, A.K.; Gellein, J.; Knezevic, J.; Ofstad, F.; Xiuyan Ren; Viken, G. , 2019 |
| Geophysical and geological investigations of graphite occurrences in Vesterålen, Northern Norway, in 2018 and 2019 |
| ;Norges geologiske undersøkelse;RAPPORT;NGU-rapport; No.2019.031;212 pages |
| Abstract: | |
| Several potential graphite occurrences in Vesterålen were selected for follow-up work based on helicopter-borne geophysical data. The purpose for this is to confirm the existence of the graphite and next to briefly evaluate the quality and quantity of the graphite-bearing structures. The goal for the project, which is sponsored by Nordland county administration, is to increase the knowledge of each individual graphite occurrence. By doing so, the interest in graphite prospecting in Northern Norway may increase, effective prospecting can be implemented, and land planning can be developed with appropriate regard for areas with potential for economic graphite. |
| Gautneb, Håvard; Rønning, Jan Steinar; Engvik, Ane K.; Henderson, Iain H.C.; Larsen, Bjørn Eskil; Solberg, Janja Knezevic; Ofstad, Frode; Gellein, Jomar; Elvebakk; Harald; Davidsen, Børre , 2020 |
| The graphite occurrences of northern Norway, a review of geology, geophysics and resources |
| ;ARTIKKEL;Minerals; No.7(10);24 s. pages |
| Abstract: | |
| Artikkel i Minerals 2020 nr. 7 vol. 10. Abstract: There are three provinces in Northern Norway in which occurrences of graphite are abundant; the Island of Senja, the Vesterålen archipelago, and the Holandsfjorden area. From these provinces, we report graphite resources from 28 occurrences. We use a combination of airborne and ground geophysics to estimate the dimensions of the mineralized areas, and, combined with sampling and analysis of the graphite contents, this gives us inferred resources for almost all the occurrences. The average TC (total carbon) content is 11.6%, and the average size is 9.3 Mt or 0.8 Mt of contained graphite. We demonstrate that the Norwegian graphite occurrences have grades and tonnages of the same order of magnitude as reported elsewhere. The graphite-bearing rocks occur in a sequence that encompasses carbonates, meta-arenites, acid to intermediate pyroxene gneisses, and banded iron formations metamorphosed into the granulite facies. Available radiometric dating shows that the graphite-bearing rocks are predated by Archean gneisses and postdated by Proterozoic intrusions of granitic to intermediate compositions. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| NO0298i.01 | Bedrock |
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| NO0298i.02 | Bedrock |
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| 93-8a | Bedrock |
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| 93-8b | Bedrock |
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| NB! All analyse values are shown at the end of the printout.: |
Name of Sample point: Hg8-17-hg9-17 |
| (Object Id: 36357 303,00,01) |
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| Location |
| County: | Municipality: | Mangler () |
| Map 1:50000: | Oddvær (1131-1) | Map 1:250000: | Svolvær |
| County: | UTM-Zone 33 - EUREF89/WGS84 |
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| Resource |
| Resource Type: | Graphite | Resource Subtype: | Graphite |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| Hg8-17 | Hand specimen |
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| Hg9-17 | Hand specimen |
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| NB! All analyse values are shown at the end of the printout.: |
Name of Sample point: Hg10-17 |
| (Object Id: 36358 303,00,02) |
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| Location |
| County: | Municipality: | Mangler () |
| Map 1:50000: | Oddvær (1131-1) | Map 1:250000: | Svolvær |
| County: | UTM-Zone 33 - EUREF89/WGS84 |
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| Resource |
| Resource Type: | Graphite | Resource Subtype: | Graphite |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| Hg10-17 | Hand specimen |
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| NB! All analyse values are shown at the end of the printout.: |
Name of Sample point: Hg11-17 |
| (Object Id: 36359 303,00,03) |
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| Location |
| County: | Municipality: | Mangler () |
| Map 1:50000: | Oddvær (1131-1) | Map 1:250000: | Svolvær |
| County: | UTM-Zone 33 - EUREF89/WGS84 |
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| Resource |
| Resource Type: | Graphite | Resource Subtype: | Graphite |
Name of Sample point: JK30517-3 |
| (Object Id: 36361 303,00,04) |
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| Location |
| County: | Municipality: | Mangler () |
| Map 1:50000: | Oddvær (1131-1) | Map 1:250000: | Svolvær |
| County: | UTM-Zone 33 - EUREF89/WGS84 |
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| Resource |
| Resource Type: | Graphite | Resource Subtype: | Graphite |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| JK30517-3 | Hand specimen |
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| NB! All analyse values are shown at the end of the printout.: |
| The fact sheet was created on 06.05.2024 |
Copyright © 2024 Geological Survey of Norway |