(Last updated: 27.02.2024)
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Norsk versjon | ||||
| THE INDUSTRIAL MINERAL DATABASE | |||||
| Occurence 3420 - 302 Kjeksberget | |||||
| (Object Id: 17334) (Last updated: 27.02.2024) |
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| Location |
| County: | Innlandet | Municipality: | Elverum (3420) |
| Map 1:50000: | Elverum (2016-4) | Map 1:250000: | Hamar |
| Coordinate system: | EU89-UTM Zone 32 |
| East: | 651143 m. | North: | 6742247 m. |
| Longitude: | 11.7765120 | Latitude: | 60.7868910 |
| Show on map |
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| Resource |
| Resource Type: | Silica | Resource Subtype: | Quartzite |
| Importance |
| Raw material meaning: | Little Importance (reg. 18.02.2015) |
| Resources and production |
| Activity: | Exploration | Reserves: | 500 thousand tons | |
| Operating method: | Historical production: |
Mineralization |
| Genesis: | Form: | |||
| Main texture: | Min. distribution: |
| Main grain size: |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Period: |
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| Igneous complex: |
| Group: | Formation: |
Information(s) in free text format |
| Free text |
| The kyanite quartzite of Kjeksberget is one of the four major occurrences of kyanite quartzites in the Solør area. The deposit is hosted in Middle to Upper Proterozoic fine- to medium-grained granitic gneisses of the Solør Complex. The granitic gneisses are assumed to have ages of 1.6 to 1.8 Ga. (Nordgulen 1999). The Kjeksberget deposit is situated in a dome-like gneiss structure, close (5 to 10 km) to the rocks of the NNW-SSE striking units of the "Oslofield" in the west. The units of the "Oslofield" comprises here metarhyolites, metatuffs and monzodioritic augengneiss. The deposit is in close relationship with metagabbros and fine-grained amphibolites (hyperites). The Kjeksberget deposit is situated 2.5 km east by cart track from the state road 20, 5 km SE of Jømna. The lens-shaped, ENE-WSW striking body is about 2.5 km long, 200 m wide and dips presumably 50° SSE. The deposit was mapped out by blocks of kyanite quartzite and no outcrops were found (Jakobsen and Nielsen 1977). SiO2 content in kyanite quartzites from the Kjeksberget deposit varies between 67 and 83 wt.%. Jakobsen and Nielsen (1977) analysed one sample from the Kjeksberget deposit with 21.5 wt.% kyanite and 1.14 wt.% rutile. T Al in quartz from the Kjeksberget kyanite quartzite varies from 17 to 28 ppm (3 LA-ICP-MS analyses) and Ti from 0.2 to 6 ppm. Li, Be, B, Mn, Ge, K, Ca and Fe are generally below the limit of detection. |
| Photo(s) from the Deposit area: |
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Bibliography: |
| From NGU's Reference Archive: |
| Müller, Axel ; Wanvik, Jan Egil ; Kronz, Andreas , 2005 |
| Norwegian kyanite quartzites - potential resources of high purity quartz? |
| ;Norges geologiske undersøkelse;RAPPORT;NGU-rapport; No.2005.039;70 s. pages |
| Abstract: | |
| Forkortet: This study represents an evaluation of Norwegian kyanite quartzite occurrences as potential deposits of high purity quartz raw material. Kyanite quartzites are rare fine-grained with 70 to 85 vol. % quartz and > 15 vol. % kyanite (Al2SiO5) which occur in Proterozoic supracrustal rock units. Kyanite quartzites form stratiform lens-shaped bodies, which can extend several kilometers. |
| References not to be found in NGU's Reference Archive.: |
| Nordgulen, Ø. 1999. Geologisk kart over Norge, Berggrunnskart Hamar, M 1 : 250.000. Norges geologiske undersøkelse. |
| Gvein, Ø., Skålvoll, H., Sverdrup, T. 1974. Geologisk kart over Norge, Berggrunnskart Torsby, M 1 : 250.000. Norges Geologiske Undersøkelse. |
| Jakobsen, B.M., Nielsen, E. 1977. Kyanite kvartsit projektet 1976-1977. Laboratorienrapport. Endogen Laboratorium. Geol Institut Århus Universitet. p.19. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||||
| 2907403 | Bedrock |
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| 2907404 | Bedrock |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 3420 - 302 Kjeksberget |
Element analyses |
( *=parts pr. million, #=parts pr.billion, Negative values means below detection limit value.) |
| Sample No. | Sample Type | Cu* | Zn* | Pb* | Co* | Ni* | As* | Ba* |
| 2907403 | Bedrock | 11 | 26 | -10 | -5 | -5 | -5 | 2430 |
| 2907404 | Bedrock | 10 | 10 | -10 | -5 | -5 | 5 | 1722 |
| ------------------ |
| Sample No. | Mo* | Ga* | S% | V* | Cr* | Th* | W* | Sr* | Y* |
| 2907403 | 8.00 | 19.00 | .13 | 32 | 50 | 8.00 | 44 | -5.0 | 6.0 |
| 2907404 | -5.00 | -10.00 | .36 | 29 | 27 | -5.00 | 57 | -5.0 | -5.0 |
| ------------------ |
| Sample No. | Zr* | Nb* | La* | Ce* | Pr* | Nd* | Sc* | Hf* | |
| 2907403 | 231 | 13.00 | 47.00 | 39.00 | -10.00 | 13.00 | 120.00 | -10.00 | |
| 2907404 | 251 | 16.00 | 11.00 | -10.00 | -10.00 | -10.00 | 92.00 | -10.00 |
Mineral analyses |
( All values are in ppm. Negative values means below detection limit value.) |
| Sample No. | Sample Type | Mineral | Li | Be | B |
| 2907404 | Bedrock | Quartz | -1.000 | -2.000 | -3.000 |
| 2907404 | Bedrock | Quartz | -1.000 | -2.000 | -3.000 |
| 2907404 | Bedrock | Quartz | -1.000 | -2.000 | -3.000 |
| ------------------ |
| Sample No. | Na | Al | P | K | Ca | Ti | Mn | Fe | Ge |
| 2907404 | -100.000 | 28.500 | -5.000 | -3.000 | -60.000 | 6.000 | -.300 | 18.800 | -.500 |
| 2907404 | -100.000 | 18.100 | -5.000 | -3.000 | -60.000 | .200 | -.300 | -2.000 | -.500 |
| 2907404 | -100.000 | 16.600 | -5.000 | -3.000 | -60.000 | 2.500 | -.300 | -2.000 | -.500 |
Oxide analyses |
( All values are in % ) |
| Sample No. | Sample Type | SiO2 | Al2O3 | TiO2 | Fe2O3 | MnO | MgO | CaO |
| 2907403 | Bedrock | 66.96 | 30.19 | 0.31 | 0.64 | -0.01 | 0.08 | 0.02 |
| 2907404 | Bedrock | 82.54 | 12.76 | 0.48 | 1.67 | -0.01 | -0.01 | -0.01 |
| ------------------ |
| Sample No. | Na2O | K2O | P2O5 | Loss | Sum | ||||
| 2907403 | -0.10 | 0.09 | 0.08 | 0.90 | 99.00 | ||||
| 2907404 | -0.10 | -0.01 | 0.05 | 1.17 | 99.00 |
| The fact sheet was created on 05.05.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |