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English version | ||||
| MALMDATABASEN | |||||
| Forekomstområde 805 - 001 | |||||
| (Sist oppdatert 12.apr.2016) | |||||
Navn på forekomstområde : Langesundsfjord |
| (Objekt Id : 0805,001,00,00) |
| Lokalisering |
| Fylke : | Telemark (08) | Kommune : | Prosgrunn (0805) |
| Kart 1:50000: | Porsgrunn (1713-2) | Kart 1:250000: | Skien |
| Markeringspunkt: | Lengdegrad: | 9.7527710 | Breddegrad: | 59.0245940 |
| EU89-UTM Zone 32 | (Koordinatene ER bekreftet) |
| X-koord: | 543217 m. | Y-koord: | 6543033 m. |
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| Materialtype |
| Hovedtype: | Spesialmetaller (Nb,Ta,Be,Li,Sc,REE) | Subtype: | REE-metaller | |
| Element(er): | REE |
| Betydning |
| Offentlig: | Ikke vurdert (reg. 06.05.2015) |
| Økonomisk: | Ikke vurdert |
Mineralisering |
| Æra: | Paleozoikum | Periode: | Perm | |
| Datering: | 300 million år | Metode: | ||
| Genese: | Pegmatittdannelse | Form: | ||
| Hovedtextur: | Min. fordeling: |
| Kornstørrelse: | Hovedomvandling: |
| Strøk/Fall: | Retning: | |||
| Feltstupning: |
| Stratigrafisk klassifikasjon av vertsbergart |
| Æra: | Periode: |
| Provins: | ||
| Geotek.enhet: | ||
| Tektonisk complex: | ||
| Intrusivt komplex: |
| Gruppe: | Formasjon: |
Mineralogi |
| Relasjon | Mineral | Mengde | |
| Gangmineral | Amfibol | Hovedmineral (>10%) | |
| Gangmineral | Albitt | Hovedmineral (>10%) | |
| Gangmineral | Ægirin | Hovedmineral (>10%) | |
| Gangmineral | Nefelin | Hovedmineral (>10%) | |
| Malmmineral | Eudialytt gruppen | Aksessorisk mineral (<1%) | |
| Malmmineral | Hingganitt | Aksessorisk mineral (<1%) | |
| Malmmineral | Loparitt | Aksessorisk mineral (<1%) | |
| Malmmineral | Mosandritt | Aksessorisk mineral (<1%) | |
| Malmmineral | Parisitt | Aksessorisk mineral (<1%) | |
| Malmmineral | Gadolinitt | Aksessorisk mineral (<1%) | |
| Malmmineral | Kainositt | Aksessorisk mineral (<1%) | |
| Malmmineral | Monazitt | Aksessorisk mineral (<1%) | |
| Malmmineral | Xenotim | Aksessorisk mineral (<1%) | |
| Malmmineral | Chevkinitt | Aksessorisk mineral (<1%) | |
| Malmmineral | Britholitt | Aksessorisk mineral (<1%) | |
| Malmmineral | Bastnäsitt | Aksessorisk mineral (<1%) | |
| Malmmineral | Allanitt | Aksessorisk mineral (<1%) | |
| Malmmineral | Ancylitt | Aksessorisk mineral (<1%) |
Litologi: |
| Relasjon | Bergart | Opprinnelse | |
| Vertsbergart | Nepheline syenite | Intrusiv Opprinnelig bergart :Syenittpegmatitt |
Opplysning(er) i fritekstformat |
| Fri tekst |
| The Langesundsfjord is part of the Permian Oslo Rift Province and one of the classic occurrences of peralkaline rocks. Some pegmatites are characterised by agpaite mineral associations. The location referenced here represents one of the observation points mentioned in literature; however, there are several occurrences spread over the Langesundsfjord and the area east of Langesundsfjord (see literature for details). Some of the pegmatites have been hydrothermally overprinted and are characterised by the presence of a variety of magmatic and hydrothermal minerals. Consequently, some of the minerals mentioned here as (potential) ore minerals are restricted to certain environments. |
Litteraturfortegnelser: |
| Fra NGU's Referansearkiv.: |
| Andersen, T.; Erambert, M.; Larsen, A.O.; Selbekk, R. , 2010 |
| Petrology of nepheline syenite pegmatites in the Oslo Rift, Norway: Zirconium silicate mineral assemblages as indicators of alkalinity and volatile fugacity in mildly agpaitic magma |
| ;Oxford University Press;ARTIKKEL;Jounrnal of petrology; No.51 (11);2303-2325 sider |
| Brøgger, W.C. , 1890 |
| Die Mineralien der Syenitpegmatitgänge der Südnorwegischen Augit- und Nephelinsyenite |
| ;Verlag von Wilhelm Engelmann;BOK;Zeitschrift für Krystallographie und Mineralogie; No.16;4-658 sider |
| Schilling, J.; Wu, F.-Y.; McCammon, C.; Wenzel, T.; Marks, M.A.W.; Pfaff, K.; Jacob, D.E.; Markl, G. , 2011 |
| The compositional variability of eudialyte-group minerals |
| ;Mineralogical Society London;ARTIKKEL;Mineralogical magazine; No.75 (1);87-115 sider |
| Larsen, Alf Olav ; Dahlgren, Sven ; Berge, Svein Arne ; Andersen, Frode ; Larsen, Knut Edvard ; Burvald, Ingulv , 2010 |
| The Langesundsfjord. History, geology, pegmatites, minerals |
| ;Bode Verlag, Salzhemmendorf, Germany;BOK;239 s. sider |
| Abstrakt: | |
| Larsen, Bjørn T.; Olaussen, Snorre; Sundvoll, Bjørn; Heeremans, Michel , 2008 |
| The Permo-Carboniferous Oslo Rift through six stages and 65 million years |
| ;IUGS;ARTIKKEL;Episodes; No.31 (1);52-58 sider |
| Abstrakt: | |
| The Oslo Rift is the northernmost part of the Rotliegendes basin system in Europe. The rift was formed by lithospheric stretching north of the Tornquist fault system and is related tectonically and in time to the last phase of the Variscan orogeny. The main graben forming period in the Oslo Region began in Late Carboniferous, culminating some 20-30 Ma later with extensive volcanism and rifting, and later with uplift and emplacement of major batholiths. It ended with a final termination of intrusions in the Early Triassic, some 65 Ma after the tectonic and magmatic onset. |
| Neumann, Else-Ragnhild; Wilson, Marjorie; Heeremans, Michel; Spencer, Elizabeth Ann; Obst, Karsten; Timmerman, Martin J.; Kirstein, Linda , 2004 |
| Carboniferous-Permian rifting and magmatism in southern Scandinavia and northern Germany: a review. |
| ;Geological Society of London;ARTIKKEL;Geological Society Special Publication; No.223;11-40 sider |
| Larsen, A.O. , 1996 |
| Rare earth minerals from the syenite pegmatites in the Oslo Region, Norway |
| ;Chapman & Hall;ARTIKKEL;Mineralogical Society Series; No.7;151-166 sider |
| Faktaarket ble generert 25.11.2024 |
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