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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 1640 - 080 | |||||
| (Last updated 08.nov.2019) | |||||
Name of Deposit Area : Tverrøa |
| (Object Id : 1640,080,00,00) |
| Location |
| County : | Sør-Trøndelag (16) | Municipality : | Røros (1640) |
| Map 1:50000: | Dalsbygda (1620-2) | Map 1:250000: | Røros |
| Marking point: | Longitude: | 11.1943390 | Latitude: | 62.6287780 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 612542 m. | Y-coord: | 6946143 m. |
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| Commodity |
| Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
| Element(s): | Fe Mn |
| Production |
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: |
| Importance |
| Public: | Not Assessed (reg. 18.02.2015) |
| Economical: | Not classified/evaluated |
Operations |
| From - To | Activity | Comments | |
| Pitting | Company/Institution :? | ||
| 1998 - 1998 | Sampling | Company/Institution :NGU mineralressurser |
Mineralization |
| Era: | Paleozoic | Period: | Ordovician | |
| Dating: | Method: | |||
| Genesis: | Volcex | Form: | Irregular | |
| Main texture: | Min. distribution: |
| Main grain size: | Main alteration: | Silicification |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Paleozoic | Period: | Ordovician |
| Province: | Caledonides | |
| Geotec.unit: | Trondheim Nappe Complex | |
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Sulåmo Group | Formation: | Fjellsjø Formation |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Grunerite | Major mineral (>10%) | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Gangue mineral | Carbonate | Subordinate mineral (1-10%) | |
| Gangue mineral | Garnet | Subordinate mineral (1-10%) | |
| Gangue mineral | Chlorite | Accessory mineral (<1%) | |
| Ore mineral | Magnetite | Major mineral (>10%) | |
| Ore mineral | Pyrrhotite | Major mineral (>10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Pelitic chlorite-musc. schist | Sedimentary | |
| Metamorphic facies :Greenschist |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Host rock | Foliation | Strike/Dip :134 / 44 | Post-mineralisation ;...Effect :Controls |
Information(s) in free text format |
| Free text |
| Liten røskegrop 3 x 2.5 m i omriss og ca. 1 m dyp midt utpå stor åpen vidde 3.5 km sør for Røsjøhøgda. Skjerpet ligger rett ved en sti. Mineralisering har en liggsone bestående av kvartsitt/chert med flere 0.5 - 1 cm tykke magnetittbånd, dels karbonatholdig (prøve ST0392.01). I heng for denne opptrer en ca. 50 cm mektig sone med svak impregnasjon med uregelmessige magnetkisaggregater i en bergart bestående av grovkornet gruneritt i rosetter, kvarts, Fe-rik karbonat og 1-2 mm euhedrale røde granater, samt enkelte meget mørkegrønne aggregater av mm-kornet kloritt (prøve ST0392.02). Det er også en liten røskegrop i overflaten ca. 15 meter nord for hovedrøsken med grovkornet gruneritt og gossan. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| ST0392.01 | Dump |
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| ST0392.02 | Dump |
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| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 1640 - 080 Tverrøa |
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# |
| ST0392.01 | Dump | 57 | 37 | 24 | 8 | 22 | -.3 | 15.0 |
| ------------------ |
| Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sb* | Bi* | V* |
| ST0392.01 | 1.0 | 5.0 | -2 | -.2 | 2 | -1.00 | -3 | -3 | 52 |
| ------------------ |
| Sample No. | Cr* | Mn* | Fe% | Th* | U* | W* | Sr* | La* | B* |
| ST0392.01 | 1 | 21061 | 13.19 | -2.00 | -8.00 | -2 | 169.0 | 4.00 | -3 |
| 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 |