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Teksevatnet South, Eigersund, Rogaland, Norwayi
Regional Level Types
Teksevatnet SouthDeposit
EigersundMunicipality
RogalandCounty
NorwayCountry

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Latitude & Longitude (WGS84):
58° 32' 53'' North , 6° 16' 3'' East
Latitude & Longitude (decimal):
58.54816,6.26771
GeoHash:
G#: u4kmndk5b
GRN:
N40E03
Type:
Deposit
Age:
931 ± 3 Ma
Geologic Time:
Tonian
Dating method:
Pb/U
Reference for age:
Geological Survey of Norway (NGU): The Ore Database. Deposit Area 1101 - 064. Teksevatnet S
Köppen climate type:
Cfc : Subpolar oceanic climate
Nearest Settlements:
PlacePopulationDistance
Vikeså715 (2010)14.3km
Egersund9,502 (2010)18.9km
Moi1,740 (2010)19.4km
Hauge i Dalane2,148 (2013)22.7km
Hellvik643 (2013)23.9km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Sandnes SteinklubbSandnes47km
Mindat Locality ID:
267410
Long-form identifier:
mindat:1:2:267410:3
GUID (UUID V4):
0
Other Languages:
Norwegian:
Teksevatnet Sør, Eigersund, Rogaland, Norge


Oxide- and apatite-rich modally layered gabbronorite in the Bjerkreim-Sokndal Layered Intrusion in the Rogaland Anorthosite Province. The stratigraphic sequence, to which the Teksevatnet S deposit belongs, is conventionally denoted MCU4-e and may be followed along strike from Rappstad in the southern extension around the hinge of the Bjerkreim lobe to Ualand in the north-eastern extension - a total distance of approximately 25 km. The two uppermost zones in MCU IV (the e- and f-zones) contain apatite in addition to ilmenite and magnetite. The stratigraphic thickness of these two zones exceeds 1 km in the central part, however the economic part is restricted to the lowermost part (50-170 m) of zone e. The zone of economic interest is further restricted to the northeastern part of the Bjerkreim lobe, the area between Terland and Ualand, a total distance of ~10 km.

In the area of Teksevatnet the thickness of MCU4e zone has been reduced significantly compared to the Terland area (see Terland S in Eigersund county). At Teksevatnet S the thickness is in the order of 500 m of MCU IVe. The economic part has a thickness of approximately 80m. The amounts of apatite, ilmenite and magnetite have increased slightly with respect to Teksestemmen (see Teksevatnet-Teksestemmen in Eigersund county). The profile at Teksevatnet S was sampled along outcrops on the shore of lake Teksevatnet at a peninsula east north east of Haugtjørna just north of the railway embankment. The lake was 2 m lower than normal water level at the time of observation and sampling. In contrast to locations at Teksestemmen several zones of prominent layering has been encountered. A total of 5 samples represent an 80m thick sequence of partly economic interest (19-35% norm value minerals). Norm calculations from XRF whole rock analyses gives an average of 10.9 % ilmenite, 7.0 % magnetite and 10.9 % apatite. The mineral composition of ilmenite and magnetite has been analysed by electron microprobe giving in average 0.8 % MgO in ilmenite and 0.84 % V2O3 in magnetite.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List


2 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

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Alphabetical List Tree Diagram

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘIlmenite4.CB.05Fe2+TiO3
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Pyroxene Group'-ADSi2O6
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
OOxygen
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ IlmeniteFe2+TiO3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Pyroxene GroupADSi2O6
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Pyroxene GroupADSi2O6
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CaCalcium
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ IlmeniteFe2+TiO3
FeIron
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ IlmeniteFe2+TiO3
Feⓘ MagnetiteFe2+Fe23+O4

Other Databases

Link to Geological Survey of Norway:16153

Other Regions, Features and Areas containing this locality

Baltic Shield (Fennoscandian Shield)Shield
Eurasian PlateTectonic Plate
EuropeContinent
ScandinaviaRegion

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References

Geological Survey of Norway (NGU): The Ore Database. Deposit Area 1101 - 064. Teksevatnet S (Uupdated 10. jun. 2015)
Schärer, U., E. Wilmart, et al. (1996) The short duration and anorogenic character of anorthosite magmatism: U-Pb dating of the Rogaland complex, Norway. Earth Planet. Sci. Lett.: 139: 335-350.
Korneliussen, Are; McEnroe, Suzanne A.; Nilsson, Lars-Petter; Schiellerup, Henrik; Gautneb, Håvard; Meyer, Gurli B.; Størseth, Leif Roger (2000) An overview of titanium deposits in Norway;Norges geologiske undersøkelse, NGU Bulletin: 436: 27-38
Schiellerup, H.; Meyer, G.B.; Tegner, C.; Robins, B.; Korneliussen, A. (2001) Resources of apatite, ilmenite and magnetite in the Bjerkreim Sokndal Layered Intrusion, Rogaland, South Norway. Norges geologiske undersøkelse, NGU-report: 2001.092, 33 pages
Meyer, G.B.; Schiellerup, H.; Tegner, C. (2002) Chemical characterisation of ilmenite, magnetite and apatite in the Bjerkreim-Sokndal Layered Intrusion, Rogaland, South Norway. Norges geologiske undersøkelse, NGU-report: 2002.042, 25 pages
Marker, Mogens; Schiellerup, Henrik; Meyer, Gurli; Robins, Brian; Bolle, Olivier (2004) Beskrivelse til geologisk kart over Rogaland Anortosittprovins, 1:75 000. Norges geologiske undersøkelse, NGU-report: 2004.007, 23 pages
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