|
|
Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Deposit Area 822 - 006 | |||||
| (Last updated 28.mar.2020) | |||||
Name of Deposit Area : Tveiten |
| (Object Id : 0822,006,00,00) |
| Location |
| County : | Telemark (08) | Municipality : | Sauherad (0822) |
| Map 1:50000: | Nordagutu (1713-4) | Map 1:250000: | Skien |
| Marking point: | Longitude: | 9.3390680 | Latitude: | 59.4488820 |
| EU89-UTM Zone 32 | (Coordinates IS confirmed) |
| X-coord: | 519226 m. | Y-coord: | 6590086 m. |
|
|
| Commodity |
| Main Type: | Ferrous metals(Fe, Mn, Ti) | Sub Type: | Iron | |
| Element(s): | Fe |
| Production |
| Activity: | Pitting | Reserves: | ||
| Prod. method: | Production: | |||
| Prod. status: | Volume of dump: | 5 m3 |
| Importance |
| Public: | Little Importance (reg. 18.02.2015) |
| Economical: | Minor interest , (Confirmed 19.des.2005 by Jan Sverre Sandstad) |
Mineralization |
| Era: | Proterozoic | Period: | Neoproterozoic | |
| Dating: | Method: | |||
| Genesis: | Pegmatite formation | Form: | Lens | |
| Main texture: | Fracture filling | Min. distribution: | Disseminated (<20 % ore minerals) |
| Main grain size: | Fine grained (< 1 mm) | Main alteration: |
| Strike/Dip: | Direction: | |||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Proterozoic | Period: | Mesoproterozoic |
| Province: | South Norwegian Basement Province | |
| Geotec.unit: | Telemark Supergroup | |
| Tectonic complex: | ||
| Igneous complex: |
| Group: | Heddal Group | Formation: |
Mineralogy |
| Relationship | Mineral | Amount | |
| Gangue mineral | Feldspar | Major mineral (>10%) | |
| Gangue mineral | Quartz | Major mineral (>10%) | |
| Ore mineral | Magnetite | Major mineral (>10%) | |
| Ore mineral | Pyrite | Subordinate mineral (1-10%) |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | Pegmatite | Intrusive | |
| Wall rock | Granitic gneiss | Extrusive Original rock :Rhyolite |
|
| Metamorphic facies :Amphibolite |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Wall rock | Foliation | Strike/Dip :32 / 30 | Pre-mineralisation ;...Effect :None |
Information(s) in free text format |
| Free text |
| Mindre undersøkelser skal være utført på et gammelt skjerp i 1907. Det ligger like vest for jernbanelinja på østsida av Bråfjorden. Det består av vegger på 6x1,5 m og er opptil 1 m dypt og fylt med søppel. En finkornet granittisk gneis og pegmatitt med svært svak disseminasjon av pyritt finnes. Gneisen er relativt sterkt magnetisk, og tynne årer med finkornet magnetitt var trolig årsaken til skjerpingen. Forekomsten er fullstendig uten økonomisk interesse. |
Fieldsamples |
| Sample No. | Sample type | Miscellanrous | ||||
| TE0030.01 | Dump |
|
| NB! All analyse values are shown at the end of the printout.: |
Analyse Results |
| from |
| Deposit Area 822 - 006 Tveiten |
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# |
| TE0030.01 | Dump | 157 | 33 | 9 | 8 | 10 | -.3 | 11.0 |
| ------------------ |
| Sample No. | Pt# | Pd# | As* | Cd* | Ba* | Mo* | Sb* | Bi* | V* |
| TE0030.01 | 2.0 | -2.0 | 4 | -.5 | 22 | 15.00 | -3 | -3 | 25 |
| ------------------ |
| Sample No. | Cr* | Mn* | Fe% | W* | Sr* | La* | B* | P* | Ca* |
| TE0030.01 | 14 | 536 | 2.06 | -2 | 18.0 | 21.00 | -3 | 0 | 1 |
| The fact sheet was created on 20.01.2025 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2025 Geological Survey of Norway |