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Hovatn Hydropower Tunnel, Bygland, Aust-Agder, Norwayi
Regional Level Types
Hovatn Hydropower TunnelTunnel
ByglandMunicipality
Aust-AgderCounty
NorwayCountry

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Name in Norwegian:Hovatn vannkraftverk (Heistad vannkraftstunnel), Bygland, Aust-Agder, Norge
Latitude & Longitude (WGS84): 58° 58' 59'' North , 7° 40' 9'' East
Latitude & Longitude (decimal): 58.98306,7.66944
GeoHash:G#: u4mrw989p
Locality type:Tunnel
Köppen climate type:Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Fyresdal359 (2014)32.8km
Byglandsfjord332 (2014)36.2km
Bykle223 (2016)44.9km


A hydropower tunnel going from the lakes Hovatn and Fiskeløys to Heistad in Bygland.
Minerals found during construction around 1970. Garnet-bearing amphibolite-

Regions containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
ScandinaviaRegion

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Standard Detailed Strunz Dana Chemical Elements

Mineral List


2 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

'Chabazite'
Reference: Frigstad, O. F. (1970) Zeolitter fra Bygland, Setesdal. Geologisk Museum. Interne notater 1961-1990. Published by Geologisk Museums Venner, Oslo 1991. p 27.
'Chlorite Group'
Reference: Frigstad, O. F. (1970) Zeolitter fra Bygland, Setesdal. Geologisk Museum. Interne notater 1961-1990. Published by Geologisk Museums Venner, Oslo 1991. p 27.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Frigstad, O. F. (1970) Zeolitter fra Bygland, Setesdal. Geologisk Museum. Interne notater 1961-1990. Published by Geologisk Museums Venner, Oslo 1991. p 27.
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Frigstad, O. F. (1970) Zeolitter fra Bygland, Setesdal. Geologisk Museum. Interne notater 1961-1990. Published by Geologisk Museums Venner, Oslo 1991. p 27.
'Heulandite subgroup'
Reference: Frigstad, O. F. (1970) Zeolitter fra Bygland, Setesdal. Geologisk Museum. Interne notater 1961-1990. Published by Geologisk Museums Venner, Oslo 1991. p 27.
Quartz
Formula: SiO2
Reference: Frigstad, O. F. (1970) Zeolitter fra Bygland, Setesdal. Geologisk Museum. Interne notater 1961-1990. Published by Geologisk Museums Venner, Oslo 1991. p 27.
'Stilbite subgroup'
Reference: Frigstad, O. F. (1970) Zeolitter fra Bygland, Setesdal. Geologisk Museum. Interne notater 1961-1990. Published by Geologisk Museums Venner, Oslo 1991. p 27.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 9 - Silicates
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Unclassified Minerals, Rocks, etc.
'Chabazite'-
'Chlorite Group'-
'Garnet Group'-X3Z2(SiO4)3
'Heulandite subgroup'-
'Stilbite subgroup'-

List of minerals arranged by Dana 8th Edition classification

Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Chabazite'-
'Chlorite Group'-
'Garnet Group'-X3Z2(SiO4)3
'Heulandite subgroup'-
'Stilbite subgroup'-

List of minerals for each chemical element

HHydrogen
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
OOxygen
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O QuartzSiO2
O Garnet GroupX3Z2(SiO4)3
AlAluminium
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
SiSilicon
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si QuartzSiO2
Si Garnet GroupX3Z2(SiO4)3
CaCalcium
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
FeIron
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Proterozoic
541 - 2500 Ma



ID: 3186372
Proterozoic crystalline metamorphic rocks

Age: Proterozoic (541 - 2500 Ma)

Lithology: Granitoid gneiss; orthogneiss/paragneiss

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Mesoproterozoic
1000 - 1600 Ma



ID: 3158703
Proterozoic II meta-sandstone

Age: Mesoproterozoic (1000 - 1600 Ma)

Description: undifferentiated metamorphic

Lithology: Major:{meta-sandstone}, Minor{conglomerate,marble,meta-volcanic rock group}

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Frigstad, O. F. (1970) Zeolitter fra Bygland, Setesdal. Geologisk Museum. Interne notater 1961-1990. Published by Geologisk Museums Venner, Oslo 1991. p 27.


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