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Norsk versjon | ||||
| THE INDUSTRIAL MINERAL DATABASE | |||||
| Deposit Area 1711 - 301 | |||||
| (Last updated 26.mar.2024) | |||||
Name of Deposit Area : Brenna |
| (Object Id : 1711,301,00,00) |
| Location |
| County : | Nord-Trøndelag (17) | Municipality : | Meråker (1711) |
| Map 1:50000: | Meråker (1721-1) | Map 1:250000: | Trondheim |
| Marking point: | Longitude: | 11.7780740 | Latitude: | 63.4074250 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 638719 m. | Y-coord: | 7033992 m. |
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| Commodity |
| Main Type: | Carbonates | Sub Type: | Limestone |
| Production |
| Activity: | Exploration | Reserves: | 7900 thousand tons | |
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: |
| Importance |
| Public: | Little Importance (reg. 18.02.2015) |
| Economical: | Minor interest , (Confirmed 26.feb.2003 by Leif Furuhaug) |
Products |
| Element/product | Crude ore grade or quality | |
| REFRAC | 10 % |
Mineralization |
| Era: | Paleozoic | Period: | ||
| Dating: | Method: | |||
| Genesis: | Sedimentary deposit | Form: | Layer | |
| Main texture: | Banded | Min. distribution: | Massive (>50 % ore minerals) |
| Main grain size: |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Period: |
| Province: | ||
| Geotec.unit: | ||
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Not defined | Calcite | Major mineral (>10%) |
Information(s) in free text format |
| Free text |
| Forekomsten ligger øst for gården Brennatrøa. Den har en mektighet på 8-15 m og en utstrekning på ca. 1 km. Kalksteinen er grovkrystallinsk og hvit. Det har vært drift på forekomsten, men i dag ligger den midt i bebygd område og det er derfor utelukket med ny drift. Kjemisk analyse viser at kalken er en kalkstein med 53,72% og 0,48% syreløslig CaO og MgO |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | |||||
| St1-93 | Bedrock |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 1711 - 301 Brenna |
Analysis of acid soluble CaO and Mgo |
| Analyzed values | Derived values |
| Sample No. | Sample Type | Acid soluble CaO | Acid soluble MgO | Dolomite | Calcite | Unsolved |
| St1-93 | Bedrock | 53.72% | .48% | 2.20% | 94.69% | 3.11% |
Oxide analyses |
( All values are in % ) |
| Sample No. | Sample Type | SiO2 | Al2O3 | TiO2 | Fe2O3 | MnO | MgO | CaO |
| St1-93 | Bedrock | 1.52 | 0.68 | 0.04 | 0.68 | 0.21 | 0.44 | 53.98 |
| ------------------ |
| Sample No. | Na2O | P2O5 | Sum | ||||||
| St1-93 | 0.10 | 0.01 | 58.00 |
| The fact sheet was created on 19.05.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |