Norsk versjon
THE INDUSTRIAL MINERAL DATABASE
Deposit Area 709 - 301
(Last updated 10.feb.2017)

Name of Deposit Area : Farrisvatn
(Object Id : 0709,301,00,00)

Location
County : Vestfold (07) Municipality : Larvik (0709)
Map 1:50000: Sandefjord (1813-3) Map 1:250000: Oslo
Marking point: Longitude: 10.0221930 Latitude: 59.1018740
EU89-UTM Zone 32 (Coordinates IS confirmed)
X-coord: 558552 m. Y-coord: 6551844 m.

Commodity
Main Type: Nepheline syenite Sub Type: Nepheline syenite

Production
Activity: Exploration Reserves:
Prod. method: Production:
Prod. status: Not yet active Volume of dump:

Importance
Public: Not Assessed (reg. 10.02.2017)
Economical: Could be significant , (Confirmed 20.feb.2006 by Havard Gautneb)

Ownership
Type of ownership Owner Land- and title number
Landed proprietor Treschow Fritsøe

Operations
From - To Activity Comments
1975 - 1976 Detail mapping Company/Institution :Norsk Hydro

Mineralization
Era: Paleozoic Period: Permian
Dating: Method:
Genesis: Magmatic Form: Irregular
Main texture: Structureless Min. distribution: Semi-massive (20-50 % ore minerals)
Main grain size: Coarse grained (> 3 mm)
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Paleozoic Period: Permian
Province: Oslo Region
Geotec.unit: Vestfold-Ringerike Graben
Tectonic complex:
Igneous complex: Larvik-Skrim Batholith
Group: Formation:

Mineralogy
Relationship Mineral Amount
Not defined Nepheline Major mineral (10-50%)

Information(s) in free text format
Free text
duing the 1970s Norsk Hydro investigated the nefelinsyenites of the Lågen valley, with respect to their potential as raw materials for Al metal production in a modified Volkow process. this deposit is the second investigated area. It comprises a belt of nepheline rich rocks that extends from Ono on the eastern shore of Lake Farris and north eastwards past Kattlibakken. Areas with up to 44% nepheline was found. The references give detail information of the project.

Bibliography:
From NGU's Reference Archive:
Lindberg, P.A. , 1977
Rapport vedr. nefelingehaltene i Lågendalen
;Norsk Hydro / NGU;RAPPORT;NH-arkivet; No.NH 62H;2+kart pages
Abstract:
Kopi også i perm merket NH 25

Lindberg, P.A. , 1976
Undersøkelse av nefelinfeltet, Lågendalen
;Norsk Hydro / NGU;RAPPORT;NH-arkivet; No.NH 62E;2 pages

Lindberg, P.A. , 1976
Notat: Undersøkelse av nefelinsyenlittfelt, Lågendalen
;Norsk Hydro / NGU;RAPPORT;NH-arkivet; No.NH 62B;3+kart pages
Abstract:
Kopi også i perm merket NH 25 og NH 241


The fact sheet was created on 19.05.2024

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