(Last updated: 18.02.2005)
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Norsk versjon | ||||
| THE ORE DATABASE | |||||
| Occurence 5532 - 019 Sagelvvatnet | |||||
| (Object Id: 1421) (Last updated: 18.02.2005) |
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| Drill Cores: Sagelvvatnet |
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| Location |
| County: | Troms | Municipality: | Balsfjord (5532) |
| Map 1:50000: | Takvatnet (1533-3) | Map 1:250000: | Tromsø |
| Coordinate system: | EU89-UTM Zone 34 |
| East: | 422875 m. | North: | 7675821 m. |
| Longitude: | 19.0552880 | Latitude: | 69.1814800 |
| Show on map |
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| Resource |
| Resource Type: | Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn) | Resource Subtype: | Lead | |
| Element(s): | Pb Zn |
| Importance |
| Raw material meaning: | Not Assessed (reg. 18.02.2015) |
| Resources and production |
| Activity: | Pitting | Reserves: | ||
| Operating method: | Historical production: |
Mineralization |
| Era: | Paleozoic | Period: | ||
| Genesis: | Form: | |||
| Main texture: | Min. distribution: |
| Main grain size: | Main alteration: |
| Strike/Dip: | 260 / 60 | Direction: | ||
| Plunge: |
| Stratigraphic classification of host rock |
| Era: | Paleozoic | Period: | Silurian |
| Province: | ||
| Geotec.unit: | ||
| Tectonic complex: | Lyngendekket | |
| Igneous complex: |
| Group: | Sagelvvatngruppen | Formation: | Mosbergformasjonen |
Lithology: |
| Relationship | Rock | Origin | |
| Host rock | kalkstein | Sedimentary Original rock :Limestone |
Structures |
| Location: | Type: | Orientation(360 gr.): | Relation to min.: | |
| Wall rock | Foliation | Strike/Dip :260 / 60 |
Information(s) in free text format |
| Free text |
| Skjerpet er avmerket på foreløpig berggrunnskart Takvatnet. Røskegropa er imidlertid gjenfylt med søppel, og tippen er helt overgrodd. Det er heller ikke funnet mineraliserte blotninger i nærheten. |
Bibliography: |
| From NGU's Reference Archive: |
| Bjørlykke, Arne; Olaussen, Snorre , 1981 |
| Silurian sediments, volcanics and mineral deposits in the Sagelvvatn area, Troms, North Norway. |
| ;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.365;1-38 pages |
| Abstract: | |
| Low-grade metamorphic rocks of the Sagelvvatn area in Troms reflect a regressive and transgressive cycle within the Lower Silurian. The carbonates, which contain halysitid corals indicating an Upper Llandovery age, are interpreted as shallow marine deposits. In the area a carboante-evaporite tidal sequence interdigitates with tholeitic greenstones of within-plate geochemical affinity. The final regional transgression is represented by the Hansvoll Formation which is thought to have been deposited as a hemipelagic/pelagic hypersaline limestone. The full sequence, the Sagelvvatn Group recors sedimentation and volcanism in an arid climate on a Lower Silurian continental shelf. Zinc deposits occur in the carbonate-evaporite sequence (a reservoir rock); volcanic rocks with a high zinc content are interpreted as the main source of the metals. |
| The fact sheet was created on 02.05.2024 |
| Questions or comments regarding the fact sheet can be emailed to: ressursdatabaser@ngu.no |
| Copyright © 2024 Geological Survey of Norway |